Warning Messages - ABB ACS880 Firmware Manual

166 Fault tracing

Warning messages

Code Warning
(hex)
AE14 Excess temperature
AE15 Excess temperature
difference
AE17 PU communication
Cause
Supply module heat sink
temperature is excessive due
to eg. module overload or fan
failure. (Control program
generates first a warning,
then a fault.)
High temperature difference
between the semiconductors
of different phases.
Communication errors
detected between the
control unit and the power
unit.
What to do
Check module cooling air flow and fan
operation.
Check ambient temperature. If it
exceeds 40 °C (104 °F), ensure that
load current does not exceed derated
load capacity. See appropriate
hardware manual.
Check inside of cabinet and heat sink
of the supply module for dust pick-up.
Clean whenever necessary.
Check the wiring and status of thermal
switches inside the supply module(s).
See AE19 Measurement circuit
temperature (page 167).
Check cooling of drive module(s).
Check the auxiliary code (format XXXY
YYZZ). "XXX" indicates the source of
difference (0: Single module,
difference between phase
thyristor/diodes, 1: parallel-connected
modules, minimum-maximum
difference between all
thyristor/diodes of all modules,
2: parallel-connected modules,
minimum-maximum difference
between auxiliary power supply
boards). With parallel-connected
modules, "Y YY" specifies through
which control unit channel the highest
temperature was measured. "ZZ"
specifies the phase (0: single module,
1: U-phase [parallel connection], 2: V-
phase [parallel connection], 3: W-phase
[parallel connection]).
Check the connections between the
control unit and the power unit.
Check the auxiliary code (format XXXY
YYZZ). With parallel-connected
modules, "Y YY" specifies the affected
control unit channel (0: broadcast).
"ZZ" specifies the error source
(8: Transmission errors in PSL link [see
"XXX"], 9: Transmitter FIFO warning
limit hit). "XXX" specifies the
transmission error direction and
detailed warning code
(0: Rx/communication error,
1: Tx/Reed-Solomon symbol error,
2: Tx/no synchronization error,
3: Tx/Reed-Solomon decoder failures,
4: Tx/Manchester coding errors).