Stopping The Filter With The Pqf-Manager - ABB PQFM Instruction Manual

- Network identification may be done after the start-up sequence has finished. This
network identification will always be done when harmonic components were
selected and the filter was powered down before or when new harmonic
components have been selected. The network identification may also be done
automatically during normal filter operation if the filter controller has noted a big
change of network impedance.
- At the end of the start-up procedure, the filter will work as programmed.
Remark: Filter running at 100% load while RMS current rating is not attained.
Under exceptional conditions it is possible that the active filter is showing a 100% load
indication whereas its nominal RMS current rating is not yet attained. This is because
the filter has reached an operating limit other than the RMS current limit. Possible other
limits are:
- Temperature limit due to a too high ambient temperature or a failing cooling
system.
- Peak current limit due to an a-typical peak current requirement of the load.
- Peak voltage limit due to an a-typical DC-link voltage requirement of the load or due
to a high network voltage.
Under all these conditions, the filter will run in limited mode and may not attain 100% of
its nominal current rating.
9.2.2

Stopping the filter with the PQF-Manager

In order to stop the filter with the PQF-Manager follow the instructions given below:
- Press
displayed.
- Highlight the filter 'start/stop' menu ('PQF' item in the list). In this menu, the 'STOP'
indication should be present.
- Press
contactor will open.
The 'STOP' indication in the start/stop menu changes in a 'START' indication once
-
the filter is stopped.
Remarks:
- If your filter is equipped with bulb indicators, the bulb corresponding to the present
filter state will be on.
- If the 'start/stop' menu reads 'ACK. FAULT' (i.e. 'acknowledge fault'), the filter has
encountered a fault. Refer to
problem.
188 Operating instructions ç Manual Power Quality Filter PQFM
on the PQF-Manager repeatedly until the 'Welcome' screen is
. The filter will ask confirmation and then it will stop. The main
Section 9.7 and Chapter 11 for troubleshooting the