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MAINS VOLTS LOW fault in parker AC690 drive

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Cause : MAINS VOLTS LOW comes when the mains input voltage is not sufficient to carry out the Autotune. This can cause the drive to operate incorrectly or shut down altogether.

MAINS VOLTS LOW fault in parker AC690 drive indicates that the voltage of the incoming power supply to the drive is below the minimum required level. 

  • Re-try when the mains has recovered.
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