What to doCause
Event name /
Aux. code
Code
(hex)
With parallel connection faults (BCU
control unit), the format of the auxiliary
code is 0X0Y.
See A5EA Measurement circuit
temperature (page 562).
Problem with internal temperature
measurement of the drive.
Measurement
circuit
temperature
5094
Check setting of 95.4 Control board
supply.
The way the control unit is powered does
not correspond to parameter setting.
Communication errors detected between
the drive control unit and the power unit.
PU
communication
5681
Check the connection between the
control unit and the power unit.
Check the auxiliary code (format XXXY
YYZZ). With parallel-connected modules,
“Y YY” specifies the affected BCU control
unit channel (0: broadcast). “ZZ”
specifies the error source (1: Transmitter
side [link error], 2: Transmitter side [no
communication], 3: Receiver side [link
error], 4: Receiver side [no
communication], 5: Transmitter FIFO
error [see “XXX”], 6: Module [xINT board]
not found, 7: BAMU board not found).
“XXX” specifies the transmitter FIFO
error code (1: Internal error [invalid call
parameter], 2: Internal error
[configuration not supported], 3:
Transmission buffer full).
Check the connection between the
control unit and the power unit.
Connection between the drive control
unit and the power unit is lost.
Power unit lost5682
Contact your local ABB representative.Internal communication error.PU
communication
internal
5690
If the control unit is externally powered,
check the setting of parameter 95.4
Control board supply.
Measurement circuit fault.Measurement
circuit ADC
5691
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
Power unit power supply failure.PU board
powerfail
5692
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.
Measurement circuit fault.Measurement
circuit DFF
5693
Check setting of 95.31 Parallel type
configuration. Cycle the power to the
Number of connected power modules
differs from expected.
PU
communication
conf
5694
drive. If the control unit is externally
powered, also reboot the control unit
(using parameter 96.8 Control board
boot) or by cycling its power.
548 Fault tracing