ABB ACS880 Firmware Manual page 498

498 Fault tracing
Code
Warning
(hex)
A580 PU communication
A581 Fan
Programmable warning:
31.35 Main fan fault
function
A582 Auxiliary fan not
running
Programmable warning:
31.36 Aux fan fault
function
A5A0 Safe torque off
Programmable warning:
31.22 STO indication
run/stop
A5EA Measurement circuit
temperature
A5EB PU board powerfail
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Cause
Communication errors
detected between the drive
control unit and the power unit.
Cooling fan feedback missing.
An auxiliary cooling fan
(connected to the fan
connectors on the control unit)
is stuck or disconnected.
Safe torque off function is
active, i.e. safety circuit
signal(s) connected to
connector XSTO is lost.
Problem with internal
temperature measurement of
the drive.
Power unit power supply
failure.
What to do
Check the connections between the drive
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
(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).
Check the setting of parameter
HW options word 1, bit 14.
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, 2: normal). "Y" specifies
the index of the inverter module
connected to BCU (0...n, always 0 for
ZCU control units). "Z" specifies the
index of the fan (1: Main fan 1, 2: Main
fan 2, 3: Main fan 3).
Note that modules are coded starting
from 0. For example, the code 101
means that Main fan 1 of module 1
(connected to BCU channel V1T/V1R)
has faulted during its ID run.
Check fan operation and connection.
Replace fan if faulty.
The auxiliary code identifies the fan (1:
Auxiliary fan 1, 2: Auxiliary fan 2).
Make sure the front cover of the drive
module is in place and tightened.
Check auxiliary fan(s) and connection(s).
Replace faulty fan.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual and description of
parameter 31.22 STO indication run/stop
(page 272).
Check the auxiliary code (format XXXY
YYZZ). "Y YY" specifies through which
BCU control unit channel the fault was
received ("0 00" with a ZCU control unit).
"ZZ" specifies the location (1: U-phase
IGBT, 2: V-phase IGBT, 3: W-phase
IGBT, 4: Power unit INT board, 5: Brake
chopper, 6: Air inlet, 7: Power supply
board, 8: du/dt filter, FAh: Air in temp).
Contact your local ABB representative.
95.20