3. Trouble Shoot
3-1. Error Messages - Possible Cause and Remedy:
(1) Overcurrent 1 (E 01, E 02, E 03, E 04)
Phenomena:
Overcurrent for each condition.
E 01 :
Overcurrent during constant speed operation.
E 02 :
Overcurrent during deceleration.
E 03 :
Overcurrent during acceleration.
E 04 :
Overcurrent at other condition than above mentioned.
(such as injection brake)
Cause:
Load changed rapidly.
Remedy:
Eliminate rapid changed in load.
Cause:
Sort circuit or earth contact (ground fault) in the motor or the motor cable.
Remedy:
Check with Megger. If the motor cable is disconnected from the inverter, the
overcurrent should not be detected anymore.
Cause:
A single-phase power failure (fuse, wire, ...) can cause a shutdown in certain
underload situations..
Remedy:
Check all these mains phases and the mains fuses, preferably by comparison of
the three (two in case of single phase inverter) mains currents in a steady
operating state.
Cause:
The motor is switched with a motor contactor during frequency inverter operation.
Remedy:
Switching over the motor is inhibited.
Cause:
Defect in the power component.
Remedy:
Check the IGBT portion of ISPM.
Cause:
Rapid acceleration or deceleration.
Remedy:
Set suitable acceleration or deceleration time.
Cause:
Starting frequency is too high.
Remedy:
Set starting frequency as low as possible.
Way to Reset:
A
3-1
