ABB ACS 800 Series, Firmware Manual

Page: 293 / 340

Fault tracing
293
MOTOR 1 TEMP
(4312)
3.15 FW 4 bit 1
Measured motor temperature has exceeded
fault limit set with parameter
35.03 .
Check value of fault limit.
Let motor cool down. Ensure proper motor
cooling: Check cooling fan, clean cooling
surfaces, etc.
MOTOR 2 TEMP
(4313)
3.15 FW 4 bit 2
Measured motor temperature has exceeded
fault limit set with parameter
35.06 .
Check value of fault limit.
Let motor cool down. Ensure proper motor
cooling: Check cooling fan, clean cooling
surfaces, etc.
NO MOT DATA
(FF52)
3.06 FW 2 bit 1
Motor data is not given or motor data does not
match with inverter data. Check motor data parameters
99.04 … 99.09 .
OVERCURR xx
(2310)
3.05 FW 1 bit 1 and
4.01
Overcurrent fault in inverter unit of several
parallel connected inverter modules. xx (1...12)
refers to inverter module number. Check motor load.
Check acceleration time.
Check motor and motor cable (including
phasing).
Check encoder cable (including phasing).
Check motor nominal values from group
99
START-UP DATA to confirm that motor model
is correct.
Check that there are no power factor correction
or surge absorbers in motor cable.
OVERCURRENT
(2310)
3.05 FW 1 bit 1
Output current exceeds trip limit. Check motor load.
Check acceleration time.
Check motor and motor cable (including
phasing).
Check that there are no power factor correction
capacitors or surge absorbers in motor cable.
Check encoder cable (including phasing).
OVERFREQ
(7123)
3.05 FW 1 bit 9
Motor is turning faster than highest allowed
speed due to incorrectly set minimum/
maximum speed, insufficient braking torque or
changes in load when using torque reference.
Trip level is 40 Hz over operating range
absolute maximum speed limit (the Direct
torque control mode active) or frequency limit
(Scalar control active). Operating range limits
are set with parameters
20.01 and 20.02 (DTC
mode active) or 20.07 and 20.08 (Scalar
control active).
Check minimum/maximum speed settings.
Check adequacy of motor braking torque.
Check applicability of torque control.
Check need for brake chopper and resistor(s).
OVER SWFREQ
(FF55)
3.06 FW 2 bit 9
Switching frequency is too high. Check motor parameter settings (parameter
group
99 START-UP DATA )
Ensure that ID run has been completed
successfully.
FAULT CAUSE WHAT TO DO