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5.2 List of alarm display
Operation Panel
Name
Indication
E - - - -
Faults history
HOLD
Operation panel lock
LOCD
Password locked
Er1
Parameter write error
to
rE1 to
Copy operation error
rE4
Err.
Error
Electronic thermal relay
TH
function pre-alarm
to
MT1 to
Maintenance timer 1 to 3
MT3
24 V external power supply
EV
operation
FN
Fan alarm
E.OVT
Overvoltage trip
Converter overload trip
E.THC
(electronic thermal relay
function)
E.FIN
Heatsink overheat
E.IPF
Instantaneous power failure
E.UVT
Undervoltage
E.ILF
Input phase loss
Data
Operation Panel
code
Indication
—
E.OHT
—
—
E.PUE
—
E.RET
—
E.PE2
E.CPU
—
—
E.CTE
—
E.P24
—
E.IOH
E.SER
—
E.PBT
32
(H20)
48
(H30)
64
E. 5 to
(H40)
to
80
(H50)
81
(H51)
If faults other than the above appear, contact your sales
82
representative.
(H52)
TROUBLESHOOTING
Name
External thermal relay
operation
Parameter storage device
E.PE
fault
PU disconnection
Retry count excess
Parameter storage device
fault
CPU fault
Operation panel power
supply short circuit/
RS-485 terminal power
supply short circuit
24V DC power fault
Inrush current limit circuit
fault
Communication fault
(inverter)
Internal circuit fault
E. 1
Option fault
CPU fault
E. 7
E.13
Internal circuit fault
Data
code
144
(H90)
176
(HB0)
177
(HB1)
178
(HB2)
179
(HB3)
192
(HC0)
193
(HC1)
194
(HC2)
197
(HC5)
198
(HC6)
202
(HCA)
241
(HF1)
245–
247
(HF5–
HF7)
253
(HFD)
25
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