List Of Fault Or Alarm Display - Mitsubishi Electric FR-A720-0.4K Instruction Manual

List of fault or alarm display

4.2 List of fault or alarm display
Operation Panel
Indication
E - - -
HOLD
LOCD
to
Er1 to 4 Parameter write error
to
rE1 to 4 Copy operation error
Err.
OL
oL
RB
TH
PS
MT
CP
SL
FN
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THT
E.THM
E.FIN
E.IPF
E.BE
E.UVT Undervoltage
E.ILF* Input phase loss
E.OLT Stall prevention stop
138
Name
Faults history
Operation panel lock
Password locked
Error
Stall prevention (overcurrent)
Stall prevention (overvoltage)
Regenerative brake prealarm
Electronic thermal relay
function prealarm
PU stop
Maintenance signal output
Parameter copy
Speed limit indication
(Output during speed limit)
Fan alarm
Overcurrent trip during
acceleration
Overcurrent trip during
constant speed
Overcurrent trip during
deceleration or stop
Regenerative overvoltage
trip during acceleration
Regenerative overvoltage
trip during constant speed
Regenerative overvoltage
trip during deceleration or
stop
Inverter overload trip
(electronic thermal relay
function)
Motor overload trip
(electronic thermal relay
function)
Heatsink overheat
Instantaneous power failure
Brake transistor alarm
detection
Operation Panel
Refer
Indication
to
154
139
139
E.OHT
139
140
to
140
141
141
142
142
E.PE2*
141
to
142
E.CPU
142
142
143
143
E.CDO*
143
E.IOH*
144
E.SER*
144
144
E.OSD
144
145
to
145
145
145
E.USB* USB communication fault
146
146
146
* If a fault occurs when using the FR-PU04, "Fault 14" is displayed on
the FR-PU04.
146
Name
Output side earth (ground)
E.GF
fault overcurrent
E.LF Output phase loss
External thermal relay
operation
*2
E.PTC* PTC thermistor operation
E.OPT Option fault
E.OP3 Communication option fault
E. 1 to
Option fault
E. 3
Parameter storage device
E.PE
fault
E.PUE PU disconnection
E.RET Retry count excess
Parameter storage device
fault
E. 5 to
E. 7 CPU fault
Operation panel power
supply short circuit, RS-485
E.CTE
terminal power supply short
circuit
24VDC power output short
E.P24
circuit
Output current detection
value exceeded
Inrush current limit circuit
fault
Communication fault
(inverter)
E.AIE* Analog input fault
E.OS Overspeed occurrence
Speed deviation excess
detection
E.ECT Signal loss detection
E.OD Excessive position fault
E.MB1
to Brake sequence fault
E.MB7
E.EP Encoder phase fault
Opposite rotation
E.11
deceleration fault
E.13 Internal circuit fault
Refer
to
146
147
147
147
147
148
148
148
148
149
148
149
149
151
151
151
151
151
149
150
150
150
149
150
151
152
152