Fault 7 DC link

Subfault: 7.1

Description: Overvoltage in the DC link

 

Response: Output stage inhibit

Cause

Measure

Maximum permitted DC link voltage exceeded.

– Decrease deceleration.

– Check the supply cable to the braking resistor.

– Check the configuration of the braking resistor (resistance value).

Subfault: 7.2

Description: DC link discharge failed

 

Response: Warning

Cause

Measure

DC link voltage level not dropped below discharge threshold within discharge time.

Contact SEW‑EURODRIVE Service.