Fault Tracing - ABB PQFS Installation, Operation And Maintenance Instructions

WARNING: Only apply power to a filter without protective cover if there is no
physical damage in the filter panel. Failure to adhere to this guideline may result in
physical injury or death.
Provide the data provided by the PQF-Manager and the LED status information to the
ABB service provider when discussing a potential filter problem.
11.4.2

Fault tracing

Symptom
No display on PQF-Manager.
Fan(s) not running.
All the indicator LEDs on the
electronic cards (LEDs) remain
OFF.
No display on PQF-Manager.
Fans are running.
All the indicator LEDs on the
electronic cards (LEDs) are
functioning properly.
After applying the auxiliary power
to the system, the filter fans do
not run and the PQF-Manager
cannot finish the boot process.
The controller board LEDs are
not functioning.
After applying auxiliary power to
the system, the fan is running,
the PQF-Manager shows the
message 'Initializing
communication. Please wait...
none of the LEDs of the main
controller board is functioning.
154 Troubleshooting guide ç Manual Power Quality Filter PQFS
Table 55: Power supply problems
Cause
The active filter
(auxiliaries) is/ (are) not
energized or no power
supplied to the filter.
The filter is wired for
operation at 400 V but is
supplied with 230 V.
The 24 Vdc power supply
feeding the controller
board has failed.
No power supply to the
main controller board or
main controller board
faulty.
What to do
– Check if the protection (fuses,
disconnector ...) feeding the
active filter are OK.
– Check if the auxiliary fuse box
is closed and the fuses are
OK.
– Check if the DC power supply
fuse is OK.
– Check the mains and auxiliary
supply voltages.
– Check that the filter is wired for
208-240 V operation.
– Check the supply voltage to
see that it is within the
tolerance range of the nominal
filter settings.
– Check the 24 V power supply
feeding the control boards.
– Check the feeding cable
between the main power and
the 24 V power supply.
– Check the feeding cable
between the control boards
and the 24 V power supply.
Check the 24 V power supply
connection between the 24 V power
supply and the main controller board.