List Of Fault Or Alarm Indications - Mitsubishi Electric FR-E720-600 Instruction Manual

5.2

List of fault or alarm indications

Operation Panel
Indication
E---
HOLD
to
Er1 to 4
Err.
OL
oL
RB
TH
PS
MT
UV
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
266
Operation panel lock
272
272
Parameter write error
Inverter reset 272
Stall prevention
273
(overcurrent)
Stall prevention
273
(overvoltage)
Regenerative brake
274
prealarm
Electronic thermal relay
274
function prealarm
PU stop 273
274
Maintenance signal output
Undervoltage 274
274
Fan alarm
Overcurrent trip during
275
acceleration
Overcurrent trip during
275
constant speed
Overcurrent trip during
275
deceleration or stop
Regenerative overvoltage
275
trip during acceleration
Regenerative overvoltage
276
trip during constant speed
Regenerative overvoltage
276
trip during deceleration or
stop
Inverter overload trip
276
(electronic thermal relay
function)
Motor overload trip
(electronic thermal relay 276
function)
277
Fin overheat

List of fault or alarm indications

Operation Panel
Indication
E.ILF ∗
E.OLT
E. BE
E.GF
E.LF
E.OHT
E.OP1
E. 1
E.PE
E.PE2 ∗
E.PUE
E.RET
/
E. 6/
/
E. 7/
E.CPU
E.IOH ∗
E.AIE ∗
E. USB ∗
E.MB4
to
to
E.MB7
E.13
∗ If a fault occurs when using with the FR-PU04, "Fault 14" is displayed on the
FR-PU04.
Refer
Name to
Page
277
Input phase loss
Stall prevention 277
Brake transistor alarm
277
detection
Output side earth (ground)
277
fault overcurrent at start
Output phase loss 278
External thermal relay
278
operation
Communication option
278
fault
Option fault 278
Parameter storage device
278
fault
279
Internal board fault
PU disconnection 279
Retry count excess 279
CPU fault 279
Inrush current limit circuit
279
fault
280
Analog input fault
USB communication fault 280
Brake sequence fault 279
Internal circuit fault 280
271
5