ABB PQFS Installation, Operation And Maintenance Instructions page 125

If the event reported is a fault, which is considered critical by the system, a 'Critical'
4
indication will appear on the screen.
Fault description list if the event was a fault.
5
Table 49
and
When entering the 'Event logging' window, the most recent event is always displayed.
Use the arrow keys to scroll through the event list. Use any other key to quit the menu.
Table 48: Overview of the events that can be recorded
Event Description
No event No storable event has occurred yet
Energization The power has been switched on
System reset The filter controller has been reset
Start request A filter start has been requested
Stop request A filter stop has been requested
Fault (DSP) The DSP controller has reported a fault
The µcontroller has reported a fault
Fault (uC)
Fault cleared A user attempt to clear a fault has been recorded (by validating the 'ACK.
FAULT' option on the PQF-Manager
No more fault The system detects no more faults
Power outage The system has detected a power outage
Download DSP A DSP controller firmware upgrade (attempt) has been recorded
DSP stop An internal stop command coming from the DSP controller has been
recorded
it can be seen that both the DSP controller and the µcontroller can record
From Table 48
faults. Where the faults reported by the µcontroller are predominantly relating to a
control board failure, the faults reported by the DSP relate predominantly to the filter
interacting with the installation.
reported by the DSP controller. The list is in alphabetical order.
Table 49: Overview of the faults that can be reported by the DSP controller
DSP fault message
Bad CT connection
Bad Ratings
DC over voltage (SW)
DC over voltage (HW)
DC Top over voltage
Table 50
give an overview of the possible faults that can be reported.
Table 49
Description
The automatic CT detection procedure has encountered a problem
during the identification process.
The DSP has detected an inconsistent set of commissioning
parameters
The DC software over voltage protection has been triggered (Cf.
the detailed manuals for limit values).
The DC hardware over voltage protection has been triggered.
The DC over voltage protection of the capacitors in the positive
stack has been triggered.
Manual Power Quality Filter PQFS  Commissioning instructions 125
gives an overview of the faults that can be