ABB PQFS Installation, Operation And Maintenance Instructions page 204

Several units same id
204 Troubleshooting guide  Manual Power Quality Filter PQFS
Two or more units in a
filter system have the
same CAN_ID.
−
Verify the fuses (PF1 and
PF2) and the resistors (R1
and R2) of the preload
circuit (A001).
−
Inspect the DC-bus for
traces of damage that
may have caused a short
circuit on the DC-side of
the IGBT-module or on
the DC voltage
measurement board.
−
Check the CAN_ID of the
different units in the set
of filters: each unit has to
have one unique CAN_ID
on the DIP switch S5-1 to
S5-3.
−
Reset the filter by
switching off and on the
power. If the problem
persists, contact your
ABB representative. The
controller card must
probably be replaced.