List Of Fault Or Alarm Indications - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

5.2

List of fault or alarm indications

Operation Panel
Indication
E--- Fault history
HOLD
Operation panel lock
LOCD Password locked
Er1 to
to
Parameter write error
Er4
Err.
Drive unit reset
Stall prevention
OL
(overcurrent)
Stall prevention
oL
(overvoltage)
Regenerative brake
RB
pre-alarm
Electronic thermal
TH relay function pre-
alarm
PS
PU stop
Maintenance signal
MT
output
UV Undervoltage
SA
SA
FN Fan alarm
Overcurrent trip
E.OC1
during acceleration
Overcurrent trip
E.OC2
during constant
speed
Overcurrent trip
E.OC3 during deceleration or
stop
Regenerative
E.OV1 overvoltage trip
during acceleration
Regenerative
overvoltage trip
E.OV2
during constant
speed
Regenerative
overvoltage trip
E.OV3
during deceleration or
stop
Drive unit overload
trip (electronic
E.THT
thermal O/L relay
function)
Motor overload trip
E.THM (electronic thermal O/
L relay function)
E.FIN Heatsink overheat
Faut Refer
Name Data to
Code Page
—
249
—
254
—
254
— 254
255
—
— 255
— 255
— 256
— 256
256
—
— 256
— 256
257
—
— 257
16
257
(H10)
17
257
(H11)
18
258
(H12)
32
258
(H20)
33
258
(H21)
34
258
(H22)
48
259
(H30)
49
259
(H31)
64
259
(H40)

List of fault or alarm indications

Operation Panel
Indication
E.ILF Input phase loss
E.OLT
Stall prevention stop
Loss of synchronism
E.SOT
detection
Brake transistor alarm
E. BE
detection
Output side earth
E.GF
(ground) fault
overcurrent at start
E.LF
Output phase loss
External thermal relay
E.OHT
operation
PTC thermistor
E.PTC
operation
Parameter storage
E.PE
device fault
E.PUE PU disconnection
E.RET Retry count excess
E.5
CPU fault
E.CPU
Output current
E.CDO detection value
exceeded
Inrush current limit
E.IOH
circuit fault
E.AIE
Analog input fault
Overspeed
E.OS
occurrence
E.PID
PID signal fault
E.SAF
E.SAF
If faults other than the above appear, contact your sales
representative.
Faut Refer
Name Data to
Code Page
82
260
(H52)
96
260
(H60)
97
260
(H61)
112
260
(H70)
128
260
(H80)
129
261
(H81)
144
261
(H90)
145
261
(H91)
176
261
(HB0)
177
262
(HB1)
178
262
(HB2)
245
(HF5)
262
192
(HC0)
196
262
(HC4)
197
262
(HC5)
199
262
(HC7)
208
263
(HD0)
230
263
(HE6)
201
263
(HC9)
253
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