ABB ACS880 Firmware Manual page 519

Code
Fault
(hex)
5690 PU communication
internal
5691 Measurement circuit
ADC
5692 PU board powerfail
5693 Measurement circuit
DFF
5694 PU communication
configuration
5695 Reduced run
5696 PU state feedback
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Cause
Internal communication error.
Measurement circuit fault.
Power unit power supply
failure.
Measurement circuit fault.
Number of connected power
modules differs from expected.
Number of inverter modules
detected does not match the
value of parameter 95.13
Reduced run mode.
State feedback from output
phases does not match control
signals.
Fault tracing 519
What to do
Contact your local ABB representative.
If the control unit is externally powered,
check the setting of parameter
Control board supply.
If the problem persists, contact your local
ABB representative, quoting the auxiliary
code.
Check the auxiliary code (format
ZZZY YYXX). "YY Y" specifies the
affected inverter module (0...C, always 0
for ZCU control units). "XX" specifies the
affected power supply (1: Power supply
1, 2: Power supply 2, 3: both supplies).
Contact your local ABB representative,
quoting the auxiliary code.
Check setting of 95.31 Parallel type
configuration. Cycle the power to the
drive. If the control unit is externally
powered, also reboot the control unit
(using parameter 96.08 Control board
boot) or by cycling its power.
If the problem persists, contact your local
ABB representative.
Check that the value of 95.13 Reduced
run mode corresponds to the number of
inverter modules present. Check that the
modules present are powered from the
DC bus and connected by fiber optic
cables to the BCU control unit.
If all modules of the inverter unit are in
fact available (eg. maintenance work has
been completed), check that parameter
95.13 is set to 0 (reduced run function
disabled).
Contact your local ABB representative,
quoting the auxiliary code.
95.04