ABB ACS880 Series Firmware Manual page 494

494 Fault tracing
Code
Fault
(hex)
4982 External temperature
2
(Editable message text)
4990 FPTC not found
4991 Safe motor
temperature 1
(Editable message text)
4992 Safe motor
temperature 2
(Editable message text)
4993 Safe motor
temperature 3
(Editable message text)
5080 Fan
5081 Auxiliary fan broken
5090 STO hardware failure
Cause
Measured temperature 2 has
exceeded fault limit.
A thermistor protection module
has been activated by
parameter 35.30 but cannot be
detected.
The thermistor protection
module installed in slot 1
indicates overtemperature.
The thermistor protection
module installed in slot 2
indicates overtemperature.
The thermistor protection
module installed in slot 3
indicates overtemperature.
Cooling fan feedback missing.
An auxiliary cooling fan
(connected to the fan
connectors on the control unit)
is stuck or disconnected.
Safe torque off hardware
failure.
What to do
Check the value of parameter
Measured temperature 2.
Check the cooling of the motor (or other
equipment whose temperature is being
measured).
Check the value of parameter
Temperature 2 fault limit.
Power down the control unit and make
sure that the module is properly inserted
in the correct slot.
The last digit of the auxiliary code
identifies the slot.
Check the cooling of the motor.
Check the motor load and drive ratings.
Check the wiring of the temperature
sensor. Repair wiring if faulty.
Measure the resistance of the sensor.
Replace sensor if faulty.
See A581 Fan (page 476).
Check the auxiliary code. The auxiliary
code identifies the fan (1: Auxiliary fan 1,
2: Auxiliary fan 2).
Check auxiliary fan(s) and connection(s).
Replace faulty fan.
Make sure the front cover of the drive
module is in place and tightened. If the
commissioning of the drive requires that
the cover is off, activate parameter
Aux fan fault bypass within 2 minutes
from control unit reboot to temporarily
suppress the fault.
Contact your local ABB representative,
quoting the auxiliary code. The code
contains location information, especially
with parallel-connected inverter modules.
When converted into a 32-bit binary
number, the bits of the code indicate the
following:
31...28: Number of faulty inverter module
(0...11 decimal). 1111: STO_ACT states
of control unit and inverter modules in
conflict
27: STO_ACT state of inverter modules
26: STO_ACT state of control unit
25: STO1 of control unit
24: STO2 of control unit
23...12: STO1 of inverter modules 12...1
(Bits of non-existing modules set to 1)
11...0: STO2 of inverter modules 12...1
(Bits of non-existing modules set to 1)
35.03
35.22
31.36