ABB ACS880-17 - Wiring Ground Fault Monitoring for IT Ungrounded Systems (Option +Q954)

104 Electrical installation
Wiring ground fault monitoring for IT ungrounded systems (option +Q954)
We recommend to connect Alarm 1 for drive tripping and Alarm 2 for alarm signals in order
to avoid unnecessary trippings due to the ground fault monitor self testing with Alarm 2.
For the actual wiring, see the circuit diagram delivered with the drive.
1
2
3
4
X954
Alarm 2
Alarm 1
2 Internal wiring: Ground fault alarm 1. No
ground fault = contact closed. Contact load
capacity 250 V AC 2 A.
1 Internal wiring: Ground fault alarm 2: No
ground fault = contact closed. Contact load
capacity 250 V AC 8 A.
2
1