ABB PQFS Installation, Operation And Maintenance Instructions page 197

given by the filter (PQF-
Manager or PQ-Link).
−
Check the AC voltage
measurement connectors
(P6-1 to and P6-4) for loose
connections and component
damage.
−
Check the connections
between the auxiliary fuses
and the AC voltage
measurement connectors
(P6-1 to and P6-4).
−
Check the filter parameters
(Cf.
Manual Power Quality Filter PQFS  Troubleshooting guide 197
Chapter 8).