ABB ACS880 Firmware Manual page 182

182 Fault tracing
Code Warning
(hex)
AE6F Ambient temperature
AE73 Fan
AE75 SD card
AE76 PCB space cooling
AE84 Parameters not set
AE8C Control unit battery
Cause
Redundant measurement
supervision has indicated a
difference in the duplicated
measurements that is outside
the limits.
Cooling fan stuck or
disconnected.
Error related to SD card used
to store data (BCU control unit
only).
1 No SD card
2 SD card write-protected
3 SD card unreadable
Temperature difference
between ambient and
converter module PCB space
temperature difference has
exceeded warning limit.
Limit parameters are not set.
The battery of the control unit is
low.
What to do
Contact your local ABB representative.
Check the auxiliary code to identify the
fan. Code 0 denotes main fan 1. Other
codes (format XYZ): "X" specifies state
code (1: ID run, 02: normal). "Y" specifies
the index of the converter unit connected
to BCU (0...n, always 0 for ZCU control
units). "Z" specifies the index of the fan
(0: Main fan 1, 1: Main fan 2, 2: Main
fan 3, 3: Auxiliary fan 1, 4: Auxiliary
fan 2, 5: Auxiliary fan 3, 6: Filter fan 1, 7:
Filter fan 2, 8: Filter fan 3).
Check fan operation and connection.
Replace fan if faulty.
Check the auxiliary code. See actions for
each code below.
Insert a compatible, writable SD card into
the SD CARD slot of the BCU control
unit.
Check cooling fan inside the PCB space.
With parallel-connected modules, check
the auxiliary code (format XXXY YYZZ).
"Y YY" specifies through which BCU
control unit channel the fault was
received.
Check the parameters of parameter
group 130 Limits.
Replace control unit battery.
This warning can be suppressed by using
parameter 131.40.