Appendix 3
APPENDIX 349
7.2 Appendix 2 Alarm code list
1.Low input voltage
2.The reset function “RES” is on
3.Bad connection between the
control panel and main body
4.Internal circuit malfunction
5. CPU error
6. Abnormal insulation of load to
ground
1.Use a better power supply
2.Shut off “RES”
3.Ensure the keypad is connected firmly
4.Replace the inverter.
5.Restart the inverter
6. Check the insulation of the motor cable
and the three-phase winding of the motor
OC0
Over-current
when stop
The output current is two times
larger than the rated current of the
inverter or the motor is short.
Inverter may be interfered by external
electromagnetic noise, please improve the
wiring and restart the inverter. If the alarm
repeated, send the unit back to the dealer
or the manufacturer to repair(Note1)
OC1
Over-current
during
acceleration
1.When there is a sudden speed change,
extend the acceleration or deceleration
time.
2.Avoid sudden increase of load.
3.Check Terminals U/T1, V/T2 and W/T3
for short circuit.
(Note1)
OC2
Over-current at
constant speed
OC3
Over-current
during
deceleration
OV0
Over-voltage
when stop
The voltage between terminals (+ /
P)-(-/ N) is too high or the motor
leaks to ground;
The external power supply line has
large power equipment start and
stop affecting the power grid surge
Check if the power supply is functioning
properly.
OV1
Over-voltage
during
acceleration
1.When there is a sudden speed change,
extend the acceleration or deceleration
time.
2.Check the brake resistor between
Terminals +/P and PR for loose
connection.
3. If the braking resistor is connected,
check whether the setting values of 06-05
(P.30) and 06-06 (P.70) are correct
4. Check the motor insulation to ground
5. Improve the quality of the power grid
(recommended to install input reactor)
(Note 1)
OV2
Over-voltage at
constant speed
OV3
Over-voltage
during
deceleration
To Next Page
Loading...
Need help?
General
