Fault handling
To reset a fault manually, use the [FAULT RESET] key on the keypad. Return the drive to the run
condition by performing manual start or by forcing the RunRequest_I equal to "true".
Certain faults can be reset automatically if enabled by the auto fault reset enable (7120). Refer
to Table Auto resettable faults, for a list of auto resettable faults. These are xed and not
adjustable. If reset is successful, the drive will return to the run state automatically only if the
RunRequest_I is maintained at the value "true". The [FAULT RESET] key of the keypad is also
used to acknowledge alarms.
Table 11-2 Auto resettable faults
Over Speed Fault Keypad Communication Encoder Loss
Under Load Fault Network 1 Communication Loss of Signal 1 to 24
Output Ground Fault Network 2 Communication Int AI1 to AI12 Loss of Signal
IOC Motor Over Volt Fault Loss Of Drive Enable
Menu Initialization Back EMF Timeout Motor Pull-out Fault
Medium voltage low Flt Failed To Magnetize SMDC PLL Start-up Fault
Line Over Voltage Fault Loss Of Field Current SM Pole Slip
Troubleshooting Faults and Alarms
11.3 Faults and Alarms
NXGPro+ Control Manual
444 Operating Manual, A5E50491925A
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