9. Inverter Fault Codes
LED Message
Fault Code
Explanation
nErr
0 No error has been recorded since the last inverter
reset or trip clear
OC1
1 Overcurrent during acceleration
OC2
2 Overcurrent during deceleration
OC3
3 Overcurrent during constant-speed run
OCL
4 Load-end overcurrent detected at start-up (output
terminals, motor wiring etc.)
OCA1
5 U-phase armature short circuit
OCA2
6 V-phase armature short circuit
OCA3
7 W-phase armature short circuit
EPHI
8 Lost input phase (option)
EPHO
9 Lost output phase (option)
OP1
10 Overvoltage during acceleration
OP2
11 Overvoltage during deceleration
OP3
12 Overvoltage during constant-speed run
OLIn
13 Inverter overload
OLMt
14 Motor overload
Olr
15 Dynamic braking resistor overload
OH
16 Inverter overheat
E
17 Emergency off
EEP1
18 EEPROM failure during write
EEP2
19 EEPROM failure during initial read
20 Unused
Err2
21 RAM error
Err3
22 ROM error
Err4
23 CPU error
Err5
24 RS232C timer time-out
Err6
25 Gate array error
Err7
26 Output current detection circuit error
Err8
27 Communication interface card error
Err9
28 Option ROM error
UC
29 Low current
UP1
30 Main circuit undervoltage
31 Unused
Ot
32 Overtorque
EF1
33 Earth fault (software)
EF2
34 Earth fault (hardware)
EFU
35 Open fuse
To Next Page
Loading...
Need help?
General