ABB PQFM - Page 211

Manual Power Quality Filter PQFM  Troubleshooting guide 211
Table 63: Abnormal states of the controller board LEDs
(after auxiliary power is applied to the system)
Symptom
Cause
What to do
The two green main
controller board LEDs are
blinking but the DSP
controller LED (4) is blinking
twice as slow as the
µcontroller LED (1).
The PQF-Manager shows
‘ACK. FAULT’ and gives
error message ‘Bad
parameters’.
The filter parameters
entered by the
commissioning
engineer are not
consistent with the
filter configuration
reported by the
controller.
Check the commissioning parameters
and correct where necessary. (Cf.
Chapter 8).
The red LED (3) on the main
controller board is on.
The filter is stopped
due to an
unacceptably high
number of critical
errors.
−
Check the filter event log to analyze
the critical errors. Refer toTable 53
to know what to do in order to
solve the problem reported.
− After resolving the problem, the
fault has to be acknowledged and
the filter has to be restarted
manually.
One of the two controller
LEDs (1-4) on the main
controller board is not
blinking while the other one
is.
One of the controllers
is not starting up
properly. Eventually
the red LED (3) will
switch on.
−
Check the filter event log to analyze
the critical errors. Refer to Table 53
to know what to do in order to
solve the problem reported. Most
likely the controller board has to be
replaced.
− After changing the main controller
board, the filter has to be
recommissioned.