ABB PQFS Installation, Operation And Maintenance Instructions page 134

Remarks:
When power is applied to the filter and it is started, the following startup sequence is
conducted:
134 Operating instructions ç Manual Power Quality Filter PQFS
· Press
on the PQF-Manager repeatedly until the 'Welcome' screen is displayed
· Highlight the filter 'start/stop' menu ('PQF' item in the list). In this menu, the
'START' indication should be visible.
· Press
. The filter will ask confirmation and then it will start. The main contactor
should close within 30 seconds and one second after closing, the IGBTs will start
and the filter will work under no load condition.
· The 'START' indication in the 'start/stop' menu changes in a 'STOP' indication
once the filter is running
· If the 'start/stop' menu reads 'ACK. FAULT' (i.e. 'acknowledge fault'), the filter
has encountered a fault that needs to be corrected before the filter can be
started. Refer to Chapter 11
consisting of more than one unit, an ACK. FAULT message will only occurs when
all the masters in the system have failed.
· In filter systems consisting of more than one master, one master unit is the main
one and the other units behave as slaves. The PQF-Manager of the main master
unit has full functionality and can be used to control the complete system. If the
main master unit fails, then another master unit will assume the role of main
master unit. The order in which master units assume control has been
determined at the moment of commissioning.
· If some units of a multi-unit filter system do not start, this implies that the units
concerned are in error. Refer to [Welcome/PQF Monitoring/Status of units] to
identify the unit that is at fault and for which reason. Refer to
troubleshooting the problem.
· If the filter when activating the start menu displays a message to indicate that it is
remote control mode, the filter either has to be started by remote control or the
remote control mode has to be deactivated. More information about the remote
control functionality is given in
· If the hardware lock and/or the Modbus lock has/have been engaged, the filter
cannot be started nor stopped. In order to see which lock(s) has/have been
engaged push when the 'start/stop' menu is highlighted. A message will
appear to indicate which lock(s) has/have to be disengaged. If authorized,
disengage the relevant lock.
The hardware lock can be disengaged by pushing the blue button
o
present at the bottom rear of the PQF-Manager. More information on
the filter menu locking facilities is given in
· The Modbus lock can be disengaged in the menu [/Welcome/Settings/Installation
set./Communication/Modbus/Modbus lock]. More information on the Modbus lock
is available in the document "2GCS212012A0050-RS-485 Installation and Start-
up guide"
for troubleshooting the problem. In filter systems
Section 6.12.1 and Section
Section
Chapter 11 for
7.7.1.2.
7.4.