ABB ACS880-17 - Page 504

504 Fault tracing
A581 Fan
Programmable warning:
31.35 Main fan fault
function
Cooling fan feedback missing. Check the setting of parameter 95.20
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.
A582 Auxiliary fan not
running
Programmable warning:
31.36 Aux fan fault
function
An auxiliary cooling fan
(connected to the fan
connectors on the control unit)
is stuck or disconnected.
The auxiliary code identifies the fan (1:
Auxiliary fan 1, 2: Auxiliary fan 2).
Check that the auxiliary fan supervision
selection in parameter 95.21 HW options
word 2 matches the hardware.
Make sure the front cover of the drive
module is in place and tightened.
Check auxiliary fan(s) and connection(s).
Replace faulty fan.
A5A0 Safe torque off
Programmable warning:
31.22 STO indication
run/stop
Safe torque off function is
active, i.e. safety circuit
signal(s) connected to
connector XSTO is lost.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual and description of
parameter 31.22 STO indication run/stop
(page 275).
A5EA Measurement circuit
temperature
Problem with internal
temperature measurement of
the drive.
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:
With control program version 2.8x and
later: 1: U-phase IGBT, 2: V-phase IGBT,
3: W-phase IGBT, 4: Power supply
board, 5: Power unit xINT board,
6: Brake chopper, 7: Air inlet (TEMP3,
X10), 8: du/dt filter (TEMP2, X7),
9: TEMP1 (X6).
With control program version up to and
including 2.7x: 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.
A5EB PU board powerfail Power unit power supply
failure.
Contact your local ABB representative.
A5EC PU communication
internal
Communication errors
detected between the drive
control unit and the power unit.
Check the connections between the drive
control unit and the power unit.
Code
(hex)
Warning Cause What to do