ABB PQFS Installation, Operation And Maintenance Instructions page 105

it can be seen that both the DSP controller and the mcontroller can record
From Table 45
faults. Where the faults reported by the mcontroller are predominantly relating to a control
board failure, the faults reported by the DSP relate predominantly to the filter interacting
with the installation. Table 46
DSP controller. The list is in alphabetical order.
Table 46: 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
DC Bot over voltage
DC under voltage (SW)
IGBT check cooling
IGBT permanent
IGBT temporary
Loss of phase
No synchronization
SPI Error
Bad Sequence
Out of mains freq. Limit
Over voltage RMS
Over volt. Transient (SW)
Over current RMS
Over current peak (SW)
Preload problem
Unbalanced supply
Under voltage RMS
Unstable mains frequ.
Wrong phase rotation
gives an overview of the faults that can be reported by the
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.
Table 24 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.
The DC over voltage protection of the capacitors in the negative
stack has been triggered.
The DC software under voltage protection has been triggered.
The software IGBT temperature protection has been triggered.
The IGBT modules report an error that cannot be cleared by the
system. This error can be due to peak over current or too low
control voltage for the IGBT drivers.
The IGBT modules report a transient error that could be cleared
by the system. This error can be due to peak over current or too
low control voltage for the IGBT drivers.
The system has detected a loss of supply on at least one phase.
The system cannot synchronize on to the network.
The DSP has received no response after its request on the SPI
port.
The DSP has detected an inadequate behaviour in the
sequence.
The system has detected that the network frequency is out of
range.
The RMS value of the supply voltage is higher than the
acceptable maximum value.
The software transient over voltage protection has been
triggered.
The system has detected RMS over current.
The software peak current protection has been triggered.
The DC capacitors could not be preloaded. The voltage increase
on the DC capacitors during the preload phase is not high
enough.
The supply imbalance is out of range.
The RMS value of the supply voltage is lower than the
acceptable minimum value.
The network frequency is varying too fast.
The filter is fed by a supply system, which has the wrong phase
Manual Power Quality Filter PQFS ç The PQF-Manager user interface 105