141
Appendix 2 Alarm Code List
Alarm Code
Code
Screen Display
Cause
Troubleshooting
PIDE
PID
abnormal
1.
The capacitr of inverter
and motor is not enough.
2.
Setting PID
target
value
and
feed-back
value unreasonable
3.
peripheral equipment
failure
4.
Exchange a larger capacity
inverter and motor.
5.
Check the value which
setting of PID feel-back
signal
Gain
，
setting the value
again according to PID
feed-back signal Gain.
3. Check whether the external
feedback device (such as
sensor,
regulation resistance)
and circuit is normal or
abnormal.
SCP
Over-current
The output current is two
times larger than the rated
current of the inverter.
Check Terminals U, V and W for
short circuit. (such as the motor
wiring)
NTC
The IGBT
module is
overheating
The temperature of IGBT
module is too high
1.
Reduce the environment
temperature and improve the
air condition
2.
Check whether the fan of the
inverter is damaged.
CPR
CPU abnormal
CPU software abnormal
1.
Check the wiring.
2.
Check the parameter setting.
3.
Improve external disturbance.
EbE
Expansion
board abnormal
The inverter’s first auto
detection result is different
from the next one, or they are
the same, but not the existing
types of expansion board.
Check the connection between the
expansion board and the main
machine.
OL2
Over torque
abnormal
1.
Too heavy load of motor.
2.
The setting value of
P.155 and P.156 is
unreasonable.
1.
Alleviate the load of motor.
2.
Adjustment the setting value
of P.155 and P.156 properly
Note: 1. When the above alarms occur, the inverter will stop. Please deal with these alarms according to the
methods mentioned above.
2. When the above alarms occur, the inverter will stop. Please deal with these alarms according to the
methods mentioned above.
3. The abnormal number of alarm code can refer to page 118.
