Manual Power Quality Filter PQFM
Troubleshooting guide 209
11.4 Troubleshooting guide
11.4.1 Verification of the PQF-Manager status and the system LEDs
As a first phase of troubleshooting make a record of the information provided by the
PQF-Manager:
−
‘ACK. FAULT’ message present of not.
−
Filter event log information messages.
−
Alarm horn on or not?
−
Status of the digital output contact monitor.
The most recent messages are shown first in the event log.
Refer to
and
for an overview of the possible messages and
the corresponding troubleshooting tips. Note that for troubleshooting it may
be necessary to open the filter door. Always remove power to the units and
allow time for the DC capacitors to discharge (min. 10 mins) before opening
the door.
When the filter cover is removed and power is supplied again to the filter, the status
of the control card LEDs can be monitored.
−
Main controller board LEDs:
(items 18 and 19) can be used to locate the main controller board
LEDs.
(items 18 and 19) explains the meaning of the LEDs and their status
for normal operation.
WARNING: Only apply power to a filter with open door 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.
