ABB ACS800 Series - Page 184

Fault tracing
172
MOTOR TEMP
(4310)
02.18FW 1 bit 06
(programmable
Fault Function
30.04…30.09)
Motor temperature is too high (or appears to be
too high) due to excessive load, insufficient
motor power, inadequate cooling or incorrect
start-up data.
Check motor ratings and load.
Check start-up data.
Check Fault Function parameters.
MOTOR 1 TEMP
(4312)
Measured motor temperature has exceeded
fault limit set by 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)
Measured motor temperature has exceeded
fault limit set by 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)
02.19 FW 2 bit 01
Motor data is not given or motor data does not
match with inverter data.
Check motor data parameters
99.05…99.09.
OVERCURR xx
(2310)
02.18 FW 1 bit 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)
02.18 FW 1 bit 01
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)
02.18 FW 1 bit 09
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 (Direct Torque
Control mode active) or frequency limit (Scalar
Control active). Operating range limits are set
by 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).
Fault Cause What to Do