List Of Fault Or Alarm Indications - Mitsubishi Electric FR-D720-0.4K Instruction Manual

5.2

List of fault or alarm indications

Operation Panel
Indication
E---
HOLD
LOCD
to
Er1 to 4
Err.
OL
oL
RB
TH
PS
MT
UV
SA
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
250
Operation panel lock
256
Password locked
256
256
Parameter write error
257
Inverter reset
Stall prevention
257
(overcurrent)
Stall prevention
257
(overvoltage)
Regenerative brake pre-
258
alarm
Electronic thermal relay
258
function pre-alarm
258
PU stop
Maintenance signal output 258
258
Undervoltage
Safety stop 259
259
Fan alarm
Overcurrent trip during
259
acceleration
Overcurrent trip during
259
constant speed
Overcurrent trip during
260
deceleration or stop
Regenerative overvoltage
260
trip during acceleration
Regenerative overvoltage
260
trip during constant speed
Regenerative overvoltage
trip during deceleration or 260
stop
Inverter overload trip
(electronic thermal O/L 261
relay function)
Motor overload trip
261
(electronic thermal O/L
relay function)
Heatsink overheat 261
List of fault or alarm indications
Operation Panel
Indication
E.ILF ∗
E.OLT
E. BE
E.GF
E.LF
E.OHT
E.PTC∗
E.PE
E.PUE
E.RET
E.5
E.CPU
E.CDO∗
E.IOH ∗
E.AIE ∗
E.SAF ∗
∗ If a fault occurs when using with the FR-PU04, "Fault 14" is displayed on the
FR-PU04.
Refer
Name to
Page
Input phase loss 262
Stall prevention stop 262
Brake transistor alarm
262
detection
Output side earth (ground)
262
fault overcurrent at start
262
Output phase loss
External thermal relay
263
operation
PTC thermistor operation 263
Parameter storage device
263
fault
PU disconnection 263
263
Retry count excess
CPU fault 264
Output current detection
264
value exceeded
Inrush current limit circuit
264
fault
Analog input fault 264
Safety circuit fault 264
255
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