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237
5
TROUBLESHOOTING
List of fault or alarm indications
5.2 List of fault or alarm indications
Operation Panel
Indication
Name
Faut
data
code
Refer
to
Page
Error message
E---
Faults history
232
HOLD Operation panel lock
238
LOCD
Password locked
238
Er1 to
Er4
Parameter write error 238
Err.
Drive unit reset 239
Warning
OL
Stall prevention
(overcurrent)
239
oL
Stall prevention
(overvoltage)
239
RB
Regenerative brake
pre-alarm
240
TH
Electronic thermal
relay function pre-
alarm
240
PS
PU stop
240
MT
Maintenance signal
output
240
UV
Undervoltage
240
SA
SA
241
Alarm
FN Fan alarm 241
Fault
E.OC1
Overcurrent trip
during acceleration
16
(H10)
241
E.OC2
Overcurrent trip
during constant
speed
17
(H11)
241
E.OC3
Overcurrent trip
during deceleration or
stop
18
(H12)
242
E.OV1
Regenerative
overvoltage trip
during acceleration
32
(H20)
242
E.OV2
Regenerative
overvoltage trip
during constant
speed
33
(H21)
242
E.OV3
Regenerative
overvoltage trip
during deceleration or
stop
34
(H22)
242
E.THT
Drive unit overload
trip (electronic
thermal O/L relay
function)
48
(H30)
243
E.THM
Motor overload trip
(electronic thermal O/
L relay function)
49
(H31)
243
E.FIN
Heatsink overheat
64
(H40)
243
to
Fault
E.ILF
Input phase loss
82
(H52)
244
E.OLT
Stall prevention stop
96
(H60)
244
E.SOT
Loss of synchronism
detection
97
(H61)
244
E. BE
Brake transistor alarm
detection
112
(H70)
244
E.GF
Output side earth
(ground) fault
overcurrent at start
128
(H80)
244
E.LF
Output phase loss
129
(H81)
245
E.OHT
External thermal relay
operation
144
(H90)
245
E.PTC
PTC thermistor
operation
145
(H91)
245
E.PE
Parameter storage
device fault
176
(HB0)
245
E.PUE
PU disconnection
177
(HB1)
246
E.RET
Retry count excess
178
(HB2)
246
E.5
CPU fault
245
(HF5)
246
E.CPU
192
(HC0)
E.CDO
Output current
detection value
exceeded
196
(HC4)
246
E.IOH
Inrush current limit
circuit fault
197
(HC5)
246
E.AIE
Analog input fault
199
(HC7)
246
E.OS
Overspeed
occurrence
208
(HD0)
247
E.PID
PID signal fault
230
(HE6)
247
E.SAF
E.SAF
201
(HC9)
247
Operation Panel
Indication
Name
Faut
data
code
Refer
to
Page