What to do
Cause
Event name /
Aux. code
Code
(hex)
Check the cooling of the motor.
The thermistor protection module
installed in slot 3 indicates
overtemperature.
Safe motor
temperature 3
4993
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
.
Cooling fan feedback missing.
Fan
5080
See
A582 Auxiliary fan not running
An auxiliary cooling fan (connected to
the fan connectors on the control unit)
is stuck or disconnected.
Auxiliary fan
not running
5081
Contact your local ABB representative,
quoting the auxiliary code. The code
Safe torque off hardware failure.
STO hardware
failure
5090
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)
Check safe torque off circuit
connections.
Safe torque off function is active, i.e.
safety circuit signal(s) connected to
Safe torque
off
5091
For more information, see appropriate
drive hardware manual and
connector XSTO is broken during start
or run.
description of parameter
indication run/stop (page 370)
.
Cycle the power to the drive. If the
control unit is externally powered, also
Power unit memory has cleared.
PU logic error
5092
reboot the control unit (using
parameter
or by cycling its power. If the problem
persists, contact your local ABB
representative.
Cycle the power to the drive.
The hardware of the drive does not
match the information stored in the
Rating ID
mismatch
5093
Check the auxiliary code (format
0X0Y).
memory unit. This may occur eg. after
“X” indicates the first faulty PU
channel in hexadecimal (1…C) (With a
a firmware update or memory unit
replacement.
ZCU control unit, “X” can be 1 or 2 but
this is irrelevant to the fault).
Fault tracing 659
Содержание ACS880 Series
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