Specifications
52
TROUBLESHOOTING
*1
Not available for FR-A842 (Separated converter type)
*2
Not available for FR-A846 (IP55 compatible models)
*3
Available for FR-A846 (IP55 compatible models) only
Fault
E.THT
Inverter overload trip (electronic
thermal relay function)
48
(H30)
E.THM
Motor overload trip (electronic
thermal relay function)
49
(H31)
E.FIN
Heatsink overheat
64
(H40)
E.IPF
*1
Instantaneous power failure
80
(H50)
E.UVT
*1
Undervoltage
81
(H51)
E.ILF
*1
Input phase loss
82
(H52)
E.OLT
Stall prevention stop
96
(H60)
E. SOT
Loss of synchronism
detection
97
(H61)
E.BE
*1
Brake transistor alarm
detection
112
(H70)
E.GF
Output side earth fault
overcurrent
128
(H80)
E.LF
Output phase loss
129
(H81)
E.OHT
External thermal relay
operation
144
(H90)
E.PTC
PTC thermistor operation
145
(H91)
E.OPT
Option fault
160
(HA0)
E.OP1
Communication option fault
161
(HA1)
E.16 to
E.20
User definition error by the
PLC function
164–
168
(HA4–
HA8)
E.PE
Parameter storage device
fault
176
(HB0)
E.PUE
PU disconnection
177
(HB1)
E.RET
Retry count excess
178
(HB2)
E.PE2
Parameter storage device
fault
179
(HB3)
E.CPU
CPU fault
192
(HC0)
E.CTE
Operation panel power
supply short circuit/
RS-485 terminal power
supply short circuit
193
(HC1)
E.P24
24V DC power fault
194
(HC2)
Operation Panel
Indication
Name
Data
code
to
Fault
E.CDO
Abnormal output current
detection
196
(HC4)
E.IOH
*1
Inrush current limit circuit
fault
197
(HC5)
E.SER
Communication fault
(inverter)
198
(HC6)
E.AIE
Analog input fault
199
(HC7)
E.USB
USB communication fault
200
(HC8)
E.SAF
Safety circuit fault
201
(HC9)
E.PBT
Internal circuit fault
202
(HCA)
E.OS
Overspeed occurrence
208
(HD0)
E.OSD
Speed deviation excess
detection
209
(HD1)
E.ECT
Signal loss detection
210
(HD2)
E.OD
Excessive position fault
211
(HD3)
E.MB1 to
E.MB7
Brake sequence fault
213–
219
(HD5–
HDB)
E.EP
Encoder phase fault
220
(HDC)
E.IAH
*1
Abnormal internal
temperature
225
(HE1)
E.LCI
4mA input fault
228
(HE4)
E.PCH
Pre-charge fault
229
(HE5)
E.PID
PID signal fault
230
(HE6)
E. 1 to
E. 3
Option fault
241–
243
(HF1–
HF3)
E. 5 to
E. 7
CPU fault
245–
247
(HF5–
HF7)
E.11
Opposite rotation
deceleration fault
251
(HFB)
E.13
Internal circuit fault
253
(HFD)
Operation Panel
Indication
Name
Data
code
to
to
to