ABB PQFA, Instruction Manual

Page: 95 / 98

PQFA Instructions Manual
Asea Brown Boveri Jumet S.A.
95
Error
code Error message Possible causes Actions
117 PWM fault Internal timing problem Contact immediately
your ABB service
provider.
11.2.3. Faults not related to error codes
? ?
Unstable filter.
Check CT connection and the presence of plain capacitors. Bear in mind that
harmonics below the resonance frequency of capacitor banks must be
deselected (see chapter 10).
? ?
Filter tripping during network characterization.
In weak networks, it may happen that high harmonic orders could not be
characterized. Those orders should be deselected.
? ?
No display on PQF-Manager.
Adjust the contrast of the PQF-Manager. Open the front door of the PQFA
(main breaker open, auxiliary closed) and adjust the contrast screw located on
the back metal plate of the PQF-Manager.
? ?
Fan is stopped.
Stop the filter and wait for the capacitors to discharge. Check the mechanical
condition of the fan. If the fan does not seem to be mechanically blocked, re-
arm the protection (blue flag of the motor overload protection F101). Check
whether the current is below 5A.
? ?
No LED is on on boards A116, U100 or U109 (power supplies).
Remove the board and check fuse(s) condition. Replace them if needed.
11.2.4. Restarting the filter after fault correction
? ?
Press RESET button 2 times.
? ?
Press RUN button.
The filter will then start its start-up sequence and will attempt to work again.