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What are possible causes for DRF fault on ATV16 series drives?

Issue:
What are possible causes for DRF fault on ATV16 series drives?

Product Line:
ATV16 series drives.

Environment:
All models, All serial number.

Cause:
Documentation difficult to locate.

Resolution:
Possible causes for DRF:

Transient over-current
• Short circuit or phase to ground on the output of the drive controller
•Overheating of IPM
•Power supplies to IPM are too low
• Current too high during transient duty
• Internal short circuit

Basic troubleshooting method:



Switch drive off.
Disconnect drive controller from motor at U/T1, V/T2
and W/T3.
Check connection cables and motor insulation
(Procedure 2 on page 26).
Increase acceleration or deceleration time. Check
the ambient temperature of the drive controller.

Please refer to attached ATV16 manual for the previously mentioned procedure on page 26.

 
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