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6.2
List of fault or alarm indications
Operation Panel
Indication
E---
HOLD
LOCD
Er1
Er2
Er4
Err.
OL
oL
RB
TH
PS
MT
UV
SA
EV
FN
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THT
E.THM
E.FIN
Refer
Name
to
Page
Faults history
229
Operation panel lock
234
Password locked
234
Parameter write error
234
Inverter reset
234
Stall prevention
235
(overcurrent)
Stall prevention
235
(overvoltage)
Regenerative brake
236
prealarm
Electronic thermal relay
236
function prealarm
235
PU stop
Maintenance signal output
236
236
Undervoltage
Safety stop
236
24V external power supply
237
operation
Fan alarm
237
Overcurrent trip during
237
acceleration
Overcurrent trip during
237
constant speed
Overcurrent trip during
238
deceleration or stop
Regenerative overvoltage
238
trip during acceleration
Regenerative overvoltage
238
trip during constant speed
Regenerative overvoltage
238
trip during deceleration or
stop
Inverter overload trip
(electronic thermal relay
239
function)
Motor overload trip
(electronic thermal relay
239
function)
Heatsink overheat
239
List of fault or alarm indications
Operation Panel
Indication
E.ILF
Input phase loss
E.OLT
Stall prevention stop
Brake transistor alarm
E. BE
detection
Output side earth (ground)
E.GF
fault overcurrent at start
E.LF
Output phase loss
Communication option
E.OP1
fault
E.OPT
Option fault
E. 1
Option fault
Parameter storage device
E.PE
fault
E.PE2
Internal board fault
E.RET
Retry count excess
E. 5
E. 6
CPU fault
E. 7
E.CPU
Inrush current limit circuit
E.IOH
fault
E.USB
USB communication fault
E.MB4
to
to
Brake sequence fault
E.MB7
E.SAF
Safety circuit fault
E.13
Internal circuit fault
Refer
Name
to
Page
239
240
240
240
240
240
241
241
241
241
241
241
242
242
242
242
242
6
233
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