Maxi MWHE20 - User Manual

Why the Maxi MWHE20 Washer motor does not rotate?

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  Angela HernandezAug 18, 2025

  If the Maxi Washer motor does not rotate, it could be due to no power being supplied to the inverter. Check the input voltage, output voltage, and inter-phase voltage unbalance. Also, inspect for any voltage drop, phase loss, poor connections, or poor contacts and fix them if necessary. Ensure that a molded case circuit breaker, an earth leakage circuit breaker, or a magnetic contactor is turned on.

  

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What to do if Maxi Washer motor rotates, but the speed does not increase?

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  Johnny WigginsAug 20, 2025

  If the Maxi Washer motor rotates but the speed does not increase, it might be because the maximum frequency was set too low. Check the data of function code F03 and correct it to a more appropriate value.

  

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How to fix if Maxi Washer motor does not rotate because of forward/reverse operation command?

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  Catherine MitchellAug 23, 2025

  If the Maxi Washer motor does not rotate, it could be because no forward/reverse operation command was inputted, or both commands were inputted simultaneously. Check the input status of the forward/reverse command with menu#4 'I/O checking' using the keypad. Input a run command, and ensure only one command (forward or reverse) is active. Correct the assignment of commands (FWD) and (REV) to function codes E98 and E99. Also, ensure the external circuit wires are correctly connected to control circuit terminals (FWD) and (REV).

  

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What causes slow speed increase in Maxi Washer motor?

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  Thomas MarshallAug 26, 2025

  If the Maxi Washer motor rotates but the speed does not increase, it could be due to overload. Measure the output current and lighten the load by ensuring the mechanical brake operates correctly.

  

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How to resolve Maxi Washer motor rotation issues related to set frequency?

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  Roger RiveraAug 27, 2025

  If the Maxi Washer motor does not rotate, it could be because the set frequency was set to the same or lower than the value of the starting or stop frequency. Check that a frequency command has been entered, with Menu#4 'I/O checking' using the keypad. Set the value of the set frequency to the same or higher than that of the starting or stop frequency (F23 of F25). Reconsider the starting and stop frequencies (F23 and F25), and if necessary, change them to lower values. Inspect the frequency command devices, signal converters, switches or relay contacts. Replace any ones that are faulty. Connect the external circuit wires correctly to terminals (13), (12), (11) and (C1).

  

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Why Maxi MWHE20 motor speed not increasing, peak frequency too low?

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  Michelle WrightAug 30, 2025

  If the Maxi Washer motor rotates but the speed does not increase, the peak frequency of the frequency limiter might be set too low. Check the data of function code F15 and correct it to a more appropriate value.

  

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How to increase Maxi MWHE20 motor speed when set frequency is too low?

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  Cheryl WeaverSep 1, 2025

  If the Maxi Washer motor rotates but the speed does not increase, it could be that the set frequency was set to too low a value. Check the signals for the set frequency from the control circuit terminals with Menu#4 'I/O checking' using the keypad. Increase the set frequency. If an external potentiometer for frequency command, signal converter, switches, or relay contacts are malfunctioning, replace them. Connect the external circuit wires to terminals (13), (12), (11), and (C1) correctly.

  

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What to do if Maxi MWHE20 motor doesn't run from keypad?

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  Lori JohnsonSep 4, 2025

  If the Maxi Washer motor does not rotate, it may be because the inverter could not accept any run commands from the keypad since it was not in Running mode. Check which operation mode the inverter is in, using the keypad and shift the operation mode to Running mode.

  

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How to override high priority command to increase Maxi Washer motor speed?

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  Daniel MorenoSep 6, 2025

  If the Maxi Washer motor rotates but the speed does not increase, it could be that a frequency command with higher priority than the one attempted was active and the set frequency was set to too low a value. Check the higher priority run command with Menu#2 'Data checking' and Menu#4 'I/O checking' using the keypad, referring to the block diagram of the drive command generator. Correct any incorrect function code data settings (e.g. cancel the higher priority run command, etc).

  

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How to disable higher priority run command on Maxi MWHE20?

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  wgrossSep 9, 2025

  If the Maxi Washer motor does not rotate, it may be because a run command with higher priority than the one attempted was active, and the run command was stopped. While referring to the block diagram of the drive command generator check the higher priority run command with Menu#2 'Data checking: and Menu#4 'I/O checking' using the keypad. Correct any incorrect function code data settings (e.g. cancel the higher priority run command).

  

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