List of alarm display
Troubleshooting
7 - 2
7.1
List of alarm display
Operation Panel Indication
Name
Refer to
Page
Error message
E---
Faults history
HOLD
Operation panel lock
LOCD
Password locked
to
Er1 to Er4
Parameter write error
Err.
Inverter reset
Warnings
OL
Stall prevention (overcurrent)
oL
Stall prevention (overvoltage)
RB
Regenerative brake prealarm
TH
Electronic thermal relay function prealarm
PS
PU Stop
MT
Maintenance signal output
UV
Undervoltage
SA
Safety stop
Alarm
FN
Fan fault
Fault
E.OC1
Overcurrent shut-off during acceleration
E.OC2
Overcurrent shut-off during constant speed
E.OC3
Overcurrent shut-off during deceleration or stop
E.OV1
Regenerative over voltage shut-off during
acceleration
E.OV2
Overcurrent shut-off during constant speed
E.OV3
Regenerative over voltage shut-off during
deceleration or stop
E.THT
Inverter overload shut-off
(electronic thermal relay function)
E.THM
Motor overload shut-off
(electronic thermal relay function)
E.FIN
Fin overheat
E.ILF
Input phase loss
E.OLT
Stall prevention
E.BE
Brake transistor alarm detection
E.GF
Output side earth (ground) fault overcurrent
protection
Tab. 7-1:
List of alarm display (1)
Summary of Contents for FR-D720S SC EC
Page 2: ......
Page 4: ......
Page 24: ...Description of the case Product checking and part identification 1 4 ...
Page 108: ...Operation panel Operation 4 20 ...
Page 436: ...Setting for the parameter unit and operation panel Parameter 6 286 ...
Page 484: ...Measurements on the main circuit Maintenance and inspection 8 14 ...
Page 504: ...Specification change Appendix A 20 ...
Page 505: ......
Page 506: ......
Page 510: ...Index Appendix A 24 ...
Page 511: ......