ABB ACS880 Firmware Manual page 185

Code Fault
(hex)
4E04 Excess temperature
difference
4E06 Cabinet temperature
fault
4E07 Control board
temperature
4E09 Ambient temperature
4E0A PCB space cooling
5E00 Fan
5E03 XSTO circuit open
5E04 PU logic error
Cause
High temperature difference
between the semiconductors of
different phases. The amount
of available temperatures
depends on the frame size.
A measurement device
connected to supply unit digital
input or DI1 has tripped to a
fault. Input is selected with
parameter 131.33 Cabinet
temperature fault source.
Excessive temperature of the
busbars/fuses due to cabinet
fan failure.
Excessive temperature of the
chokes inside the DC/DC
converter module due to a
phase loss.
Excessive temperature of the
heat sink of the DC/DC
converter module due to
module fan failure.
(Control program generates
first a warning, then a fault.)
High control board tempera-
ture.
Redundant measurement
supervision has indicated a
difference in the duplicated
measurements that is outside
the limits.
Temperature difference
between ambient and
converter module PCB space
has exceeded the fault limit.
Cooling fan stuck or
disconnected.
Circuit connected to XSTO:IN1
and/or XSTO:IN2 is open.
The memory of the power unit
logic is cleared.
Fault tracing 185
What to do
See AE15 Excess temperature difference
(page 177).
Check parameter 131.34 Delay cabinet
temp supervision.
Check cabinet temperature source.
Replace the cabinet fan.
Check the input fuses and the input
connection.
Replace the module fan.
Check proper cooling of the cabinet.
Contact your local ABB representative.
Check the cooling fan inside the PCB
space.
See AE73 Fan (page 182).
Check XSTO circuit connections.
See section Default I/O connection
diagram (BCU) on page 41.
For more information, see appropriate
hardware manual.
Contact your local ABB representative.