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List of fault or alarm display
5.2 List of fault or alarm display
* If an error occurs when using the FR-PU04, "Fault 14" is displayed on
the FR-PU04.
Operation Panel
Indication
Name
Refer
to
Error message
E - - - Faults history 160
HOLD Operation panel lock 143
LOCd Password locked 143
Er1 to 4
Parameter write error 143
rE1 to 4
Copy operation error 144
Err. Error 145
Warning
OL
Stall prevention
(overcurrent)
145
oL
Stall prevention
(overvoltage)
145
TH
Electronic thermal relay
function prealarm
146
PS PU stop 146
MT Maintenance signal output 146
CP Parameter copy 146
SL
Speed limit indication
(Output during speed limit)
146
Alarm
FN Fan alarm 147
Fault
E.OC1
Overcurrent trip during
acceleration
147
E.OC2
Overcurrent trip during
constant speed
148
E.OC3
Overcurrent trip during
deceleration or stop
148
E.OV1
Regenerative overvoltage
trip during acceleration
149
E.OV2
Regenerative overvoltage
trip during constant speed
149
E.OV3
Regenerative overvoltage
trip during deceleration or
stop
149
E.THT
Inverter overload trip
(electronic thermal relay
function)
150
E.THM
Motor overload trip
(electronic thermal relay
function)
150
E.FIN Heatsink overheat 150
E.IPF Instantaneous power failure 151
E.UVT Undervoltage 151
E.ILF* Input phase loss 151
E.OLT Stall prevention stop 151
E.GF
Output side earth (ground)
fault overcurrent
152
E.LF Output phase loss 152
E.OHT
External thermal relay
operation
*2
152
to
to
Fault
E.PTC*
PTC thermistor operation 152
E.OPT Option fault 153
E.OP3 Communication option fault 153
E. 1 to
E. 3
Option fault 153
E.PE
Parameter storage device
fault
153
E.PUE PU disconnection 154
E.RET Retry count excess 154
E.PE2*
Parameter storage device
fault
154
E. 5
E. 6
E. 7
E.CPU
CPU fault 154
E.CTE
Operation panel power
supply short circuit, RS-485
terminal power supply short
circuit
154
E.P24
24VDC power output short
circuit
156
E.CDO*
Output current detection
value exceeded
156
E.IOH*
Inrush current limit circuit
fault
156
E.SER*
Communication fault
(inverter)
157
E.AIE* Analog input fault 157
E.OS Overspeed occurrence 155
E.OSD
Speed deviation excess
detection
155
E.ECT Signal loss detection 155
E.OD Excessive position fault 156
E.MB1
to
E.MB7
Brake sequence fault 155
E.EP Encoder phase fault 156
E.USB* USB communication fault 157
E.4 Converter overcurrent 157
E.8 Power supply fault 157
E.10
Converter transistor
protection thermal operation
(electronic thermal)
158
E.11
Opposite rotation
deceleration fault
158
E.13 Internal circuit fault 158
E.15 Converter circuit fault 158
Operation Panel
Indication
Name
Refer
to
to
to