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Zhongchen inverter parameter setting_Electrician knowledge: the use of frequency converter to set the functional parameters of the method

Electrical knowledge:converterHow to use, how to set function parameters

Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameters of the setting 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-". 2) Repeatedly press the "UP" or "DOWN" key. DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates that the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.

1) Parameter 9902 indicates the selection of control parameters, which sets the ACSl40 to apply different control parameters. Selection of different control parameters. converterThe control terminals have different roles. Parameter 9902 has a value from 0 to 7. The standard model selects a value of 1 for 9902.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameters of the setting 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter you need to set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-". 2) Repeatedly press the "UP" or "DOWN" key. DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12) Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency control speed constant pressure water supply inverter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the inverter is set to the output frequency F, 3, P1 is an analog output of the PLC, connected to the analog input of the inverter, as the speed of the inverter is given as 4, the system's hydraulic feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e., when the pump is at industrial frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e., the output frequency F of the inverter is 50HZ, then PLC program switches the pump 1 to the industrial frequency, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts to run. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameters of the setting 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-". 2) Repeatedly press the "UP" or "DOWN" key. DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates that the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12) Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.

2. Assumptions converterThe analog output is set to the output frequency F, of the
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameters of the setting 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-". 2) Repeatedly press the "UP" or "DOWN" key. DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates that the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameters of the setting 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter you need to set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-". 2) Repeatedly press the "UP" or "DOWN" key. DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor in use.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply inverter parameter setting: 1, assuming that the PLC constant pressure is given as P, 2, assuming that the analog output of the inverter is set to the output frequency F, 3, P1 is an analog output of the PLC, connected to the analog input of the inverter, as the speed of the inverter is given as 4, the system's hydraulic feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - three After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to rise, and the PID of PLC increases the value of P2, as the speed of the inverter is given. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.
Electrician knowledge: the use of inverter, set the function parameters of the method 1. basic parameter settings 1) Press the "MENU" key, the control panel display appears "-99-" words. 2) Press "ENTER 2) Press "ENTER" key, "-9902-" appears on the control panel display. Then press "ENTER" key, the display shows SET, LWD blinking, while displaying the value of the control parameters control 9902, repeatedly press the "UP / DOWN" key (up / down), to find the value of the control parameters needed, while the display SET flashes. And then press "ENTER" key, parameter setting is complete. Press the "MENU" key twice more, the control panel displays the frequency of the output voltage. 3) After the parameter "9902" appears on the control panel, press the "UP/DOWN" key repeatedly to find the parameter to be set from the control parameter set. Control parameter set to find the parameters need to be set, (parameters from 0102 ~ 9908, the meaning of each parameter refers to the user manual) in accordance with the methods introduced earlier to set the value of each parameter. 2. complete parameter setting complete parameters to provide the parameters of the special functions of the inverter to realize the special control requirements of the inverter. Setting method is as follows: 1) Press the control panel "MENU" key, the control panel display appears "-99-" words. 2) Repeatedly press "UP" or "DOWN". DOWN" key repeatedly until the display appears "-LG-". 3) Press and hold down the "ENTER" key until the display appears "= LC=". LC=". 4) Press the "DOWN" key until "=99=" appears in the display. 5) Press the "UP" or "DOWN" key until "-LG-" is displayed. " or "DONW" key, find out the parameters need to be set 3. inverter parameter setting 1) parameter 9902 indicates the selection of control parameters, the parameter sets ACSl40 to apply different control parameters. Select different control parameters, inverter control terminals have different roles. The value of parameter 9902 is from 0 to 7. The standard type selects the value of 9902 as 12)Parameter 9905 sets the maximum voltage value that ACSl40 outputs to the motor. When the output frequency of the inverter is equal to the rated frequency set by parameter 9907, the output voltage reaches the rated voltage value at the same time. the voltage output from ACSl40 to the motor can not be greater than the power supply voltage.3) Parameter 9906 sets the current output from ACSl40 to the motor, the value of which is the rated current value on the nameplate of the motor being used.4) Parameter 9907 adjusts the frequency of the inverter output voltage to be frequency indicated on the motor nameplate, and this frequency value should be equal to the frequency value adjusted by parameter 1105 and 2008.5) Parameter 1003 indicates the direction control parameter, selecting 1 motor forward rotation, selecting 2 motor reverse rotation, and selecting 3 motor forward rotation or reverse rotation.6) Parameter 0102 indicates the rotational speed of the motor.7) Parameter 0104 indicates the value of the motor current.8) Parameter 0105 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used.9) Parameter 0106 indicates the output torque of the motor shaft, and its value is the rated current value on the motor nameplate used. Indicates the output torque of the motor shaft, expressed as a percentage of the rated torque. Frequency conversion speed control constant pressure water supply frequency converter parameter setting: 1, assuming that the PLC constant pressure given as P, 2, assuming that the analog output of the frequency converter is set to the output frequency F, 3, P1 for the PLC an analog output, connected to the analog input of the frequency converter, as the speed of the frequency converter is given as 4, the system's water pressure feedback signal P2, connected to the PLC, 5, assuming that the system is now from the initial state - the three sets of water pumps are not started to start running. After the system starts, PLC compares P and P2, and gets P1 after PID, P1 is sent to the inverter, meanwhile, DO of PLC controls the contactor of pump 1, and connects pump 1 to the output of the inverter, and then the inverter starts. 7, after the inverter starts, the water pump starts to run, and with the increase of the rotational speed, the value of P2 starts to increase, and the PID of PLC starts to increase, and the value of P2 starts to increase, and the value of P2 starts to increase. PLC's PID continuously adjusts P1, when P1 reaches 50HZ-i.e. pump frequency, if P2 still does not reach the constant pressure given P, and the analog output of the inverter-i.e. the output frequency F of the inverter is 50HZ, then the PLC program switches the pump 1 to the frequency operation, and then starts the pump 2,8, the startup of the waterpump 2 is a repetition of the process of 1-7, if the pump 2 reaches 50HZ, P2 still does not reach 50HZ, and then the pump 2 starts up. If pump 2 reaches 50HZ, P2 still does not reach P, then PLC program will switch pump 2 to IF, and then start pump 3.