Inverter Fault Codes - Toshiba E3 Manual

9. Inverter Fault Codes

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