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What would cause the ATV930 process drive to get a precharge capacitor fault?
Issue:
ATV930 process drive causes to get a precharge capacitor fault.

Product Line:
ATV930 process drives

Environment:
All

Cause:
DC bus tie with another drive

Resolution:
In a configuration where the drive is connected and supplied by another drive via the DC bus, set DCBS parameter (Generic Functions/DC-Bus Ref Link) to "Drive with REC" as shown in the attachment. This will avoid "Precharge Capacitor" faults due to power supplied direct to the DC bus.

[Complete settings] -> [Generic functions] -> [dbS] -> [dCbS] -> [Drive with REC]

More details can be found on page 441 of the ATV900 Programming Manual:
https://www.se.com/ww/en/download/document/NHA80757/

Note: the ATV600 series is not designed for applications where the DC bus is powered from an external DC source.

Schneider Electric Belgium

bijlage(n)
Precharge Capacitor fault.pdf [80.17 KB]
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