Manual Power Quality Filter PQFS
Troubleshooting guide 203
(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).
Remark:
If the problem persists, contact your ABB service provider. Provide him with all the relevant
information, i.e. Filter serial number and type, status of the control LEDs, Error messages
displayed and filter behavior.
Table 61: Fault messages reported by the
µ
controller of the filter and troubleshooting tips
Fault message
Cause
What to do
Com. Problem (RS-232) Communication problem
between the main
controller board and the
external PC
−
Ensure that the PQ-Link
cable is properly
connected.
−
Contact your ABB service
provider.
Ctrl overtemperature
The system detected an
overtemperature of the
main controller board.
−
Verify the ambient
temperature and the
cooling of the filter (dust
filters, fans, heatsinks …).
−
If the ambient conditions
and the filter cooling is
ok, the main control
board is suspect. Contact
your ABB service provider.
The main control board
may have to be replaced.
Reactor
overtemperature
Line reactor thermal
switch has open
Check the status of the reactors and
the PCB output filter
PWM check cooling
The thermal switch in the
PWM reactor has open
Check the “fan out” status
DSP watchdog
Internal system error.
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 or the controller software
upgraded.
SPI Timeout
Power supply fault
Internal system error.
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.
Preload time-out
The DC capacitors could
not be charged.
−
Measure the three line
voltages and check if they
are within limits.