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5
TROUBLESHOOTING
List of fault or alarm indications
5.2 List of fault or alarm indications
Appears only when used with FR-E7DS.
.......Specifications differ according to the date assembled. Refer to
page 316 to check the SERIAL number.
Operation Panel
Indication
Name
Refer
to
Page
Error message
E- - -
Faults history
263
HOLD
Operation panel lock
268
LOCD
Password locked 268
Er1 to 4
Parameter write error 268
Err.
Drive unit reset 269
Warning
OL
Under torque limit 269
oL
Stall prevention 269
RB
Regenerative brake pre-
alarm
270
TH
Electronic thermal relay
function pre-alarm
270
PS
PU stop 270
MT
Maintenance signal output 270
HP1
Home position return
setting error
270
HP2
Home position return
uncompleted
270
UV
Undervoltage 271
EV
24V external power supply
operation
271
LP
Stroke limit warning 271
Alarm
FN
Fan alarm 271
Fault
E.OC1
Overcurrent trip during
acceleration
272
E.OC2
Overcurrent trip during
constant speed
272
E.OC3
Overcurrent trip during
deceleration or stop
272
E.OV1
Regenerative overvoltage
trip during acceleration
273
E.OV2
Regenerative overvoltage
trip during constant speed
273
E.OV3
Regenerative overvoltage
trip during deceleration or
stop
273
E.THT
Drive unit overload trip
(electronic thermal relay
function)
273
E.THM
Motor overload trip
(electronic thermal relay
function)
273
E.FIN
Heatsink overheat 274
to
Fault
E.ILF
Input phase loss 274
E.OLT
Stop by the torque limit 274
E.SOT
Loss of synchronism
detection
275
E. BE
Brake transistor alarm
detection
275
E.GF
Output side earth (ground)
fault overcurrent
275
E.LF
Output phase loss 275
E.OHT
External thermal relay
operation
276
E.OPT
Option fault 275
E.OP1
Communication option
fault
276
E.1
Option fault 276
E.PE
Parameter storage device
fault
276
E.PE2
Internal board fault 276
E.PUE
PU disconnection 277
E.RET
Retry count excess 277
/
/
/
E. 5/
E. 6/
E. 7/
E.CPU
CPU fault 277
E.IOH
Inrush current limit circuit
fault
277
E.AIE
Analog input fault 277
E.OS
Overspeed occurrence 278
E.OSD
Speed deviation excess
detection
278
E.OD
Excessive position fault 278
E.OA
Acceleration error 278
E.USB
USB communication fault 278
E.SAF
Internal circuit fault 279
E.13
Operation Panel
Indication
Name
Refer
to
Page