Toshiba fault codes
Fault codes
- 0 Shorted SCR
- 2 Overcurrent trip
- 3 Motor thermistor trip
- 4 Current imbalance trip
- 5 Supply frequency trip
- 6 Phase rotation trip
- 7 Stall trip
- 8 Power circuit fault
- 9 Undercurrent trip
- Atn Auto-tuning in progress
- C Overcurrent alarm
- CLr Clear acceptable
- CP Alarm
- CPL Alarm
- E Emergency stop
- E-10 Sync/source switchover fault
- E-12 Encoder open
- E-13 Speed fault
- E-17 Key fault
- E-18 VIA cable broken
- E-19 Communication fault between CPUs
- E-20 V/F control fault
- E-21 CPU fault 2
- E-50 Source logic conversion acknowledge alarm
- E-51 Sink logic conversion acknowledge alarm
- E1 Panel display digit overflow
- E2 Panel display digit overflow
- EEP EEPROM abnormality
- EEP1 E2PROM fault
- EEP2 Initial readout fault
- EEP3 Initial readout fault
- EF Ground fault at load end
- EF1 Ground fault trip
- EF2 Ground fault trip
- EFU DC fuse blown
- EOFF Confirmation of an emergency stop
- EPH1 Input phase loss
- EPHO Output phase loss
- End First/last data item display
- Err.1 Emergency setting signal error (Note)
- Err.2 Main RAM abnormality
- Err.3 Main ROM abnormality
- Err.4 Panel's RAM abnormality
- Err.5 Panel's ROM abnormality
- Err.6 Panel's key abnormality
- Err.U Setting value error alarm
- Err.t Transmission error (Note)
- Err1 Frequency point setting error
- Err2 Inverter RAM fault
- Err3 Inverter ROM fault
- Err4 CPU fault
- Err5 Communication run command unexpectedly interrupted
- Err6 Gate array fault
- Err7 Output current detection fault
- Err8 Option fault
- Err9 Fast memory error
- EtYP Inverter model fault
- Etn Auto-tuning fault
- Etn1 Auto-tuning fault
- F Heatsink overtemperature trip
- FH Setting value error alarm
- H Overheat alarm
- HEAd First/last data item display
- HI Setpoint fault alarm alternating error and data
- L Overload warning
- LO Setpoint fault alarm alternating error and data
- MOFF Undervoltage in DC main circuit (Note)
- OC1 Mid-acceleration overcurrent
- OC1P Component overcurrent during acceleration
- OC2 Overcurrent during deceleration
- OC2P Component overcurrent during deceleration
- OC3 Mid-run overcurrent
- OC3P Component overcurrent at constant speed
- OCA Armature-side overcurrent during start
- OCA1 Phase U branch short circuit
- OCA2 Phase V branch short circuit
- OCA3 Phase W branch short circuit
- OCL Overcurrent (load end overcurrent at start-up)
- OCr Overcurrent in regenerative discharge resistor
- OFF ST terminal disconnected
- OH Overtemperature trip or thermal detector fault
- OH2 External thermal input error
- OL Overload
- OL1 VFD overload trip
- OL2 Motor overload trip
- OLr Overload in regenerative discharge resistor
- OP Overvoltage
- OP1 Overvoltage during acceleration
- OP2 Mid-deceleration overvoltage
- OP3 Overvoltage during constant-speed run
- Ot Overtorque trip
- P Overvoltage alarm
- P-Er Frequency point setting fault alarm
- PL Alarm
- POFF Control circuit undervoltage
- SOUt Step-out (PM permanent-magnet motor only)
- StOP Momentary power-loss decelerate interrupt inhibit activated
- UC Low current run state trip
- UL.LL Setting value error alarm
- UP1 Undervoltage trip (main circuit supply)
- UP2 Undervoltage trip (control circuit supply)
- db Displayed during DC braking
- dbOn Displayed during DC braking
- init Parameters initializing
- nOFF Main circuit voltage insufficient
- rtrY Retrying
- t Communication error
- u CPU error
- x1 Power Circuit
- x2 Excess Start Time
- x3 Motor Overload
- x4 Motor Thermistor
- x5 Current Imbalance
- x6 Supply Frequency
- x7 Phase Rotation
- x8 Network Comms Failure
- x9 Starter Comms Failure