Main Error Codes Index

    OC1 Overcurrent during acceleration
- Overcurrent during acceleration (more >>)

    OC2 Overcurrent during deceleration
- Overcurrent during deceleration (more >>)

    OC3 Overcurrent during constant speed operation
- Overcurrent during constant speed operation (more >>)

    OC4 Overcurrent on the load side at start-up
- Overcurrent on the load side at start-up (more >>)

    OCR Arm overcurrent at start-up
- Arm overcurrent at start-up (more >>)

    EPH1 Input phase failure
- Input phase failure (more >>)

    EPH0 Output phase failure
- Output phase failure (more >>)

    OP1 Overvoltage during acceleration
- Overvoltage during acceleration (more >>)

    OP2 Overvoltage during deceleration
- Overvoltage during deceleration (more >>)

    OP3 Overvoltage during constant-speed operation
- Overvoltage during constant-speed operation (more >>)

    OL1 Inverter overload
- Inverter overload (more >>)

    OL2 Motor overload
- Motor overload (more >>)

    OL3 Main module overload
- Main module overload (more >>)

    OLr Dynamic braking resistor overload trip
- Dynamic braking resistor overload trip (more >>)

    OLt Over-torque trip 1
- Over-torque trip 1 (more >>)

    OLt2 Over-torque trip 2
- Over-torque trip 2 (more >>)

    OH Overheat
- Overheat (more >>)

    OH2 Thermal trip stop command from external device
- Thermal trip stop command from external device (more >>)

    E Emergency stop
- Emergency stop (more >>)

    EEP1 EEPROM fault 1
- EEPROM fault 1 (more >>)

    EEP2 EEPROM fault 2
- EEPROM fault 2 (more >>)

    EEP3 EEPROM fault 3
- EEPROM fault 3 (more >>)

    Err1 Main unit RAM fault
- Main unit RAM fault (more >>)

    Err2 Main unit ROM fault
- Main unit ROM fault (more >>)

    Err3 CPU fault 1
- CPU fault 1 (more >>)

    Err4 Communication error
- Communication error (more >>)

    Err5 Current detector fault 1
- Current detector fault 1 (more >>)

    Err8 Optional unit fault 1
- Optional unit fault 1 (more >>)

    Err9 Remote keypad disconnection fault
- Remote keypad disconnection fault (more >>)

    UC Low-current operation trip
- Low-current operation trip (more >>)

    UP1 Undervoltage trip (main circuit)
- Undervoltage trip (main circuit) (more >>)

    Etn Auto-tuning error
- Auto-tuning error (more >>)

    Etn1 Auto-tuning error
- Auto-tuning error (more >>)

    Etn2 Auto-tuning error
- Auto-tuning error (more >>)

    Etn3 Auto-tuning error
- Auto-tuning error (more >>)

    EF2 Ground fault trip
- Ground fault trip (more >>)

    SOLt Step-out (for PM motor drive only)
- Step-out (for PM motor drive only) (more >>)

    Pcf Safe torque off error
- Safe torque off error (more >>)

    E-13 Over speed fault
- Over speed fault (more >>)

    E-18 Break in analog signal cable
- Break in analog signal cable (more >>)

    E-19 CPU communications error
- CPU communications error (more >>)

    E-21 Excessive torque boosted
- Excessive torque boosted (more >>)

    E-23 Optional unit fault 2
- Optional unit fault 2 (more >>)

    E-32 CPU fault 2
- CPU fault 2 (more >>)

    E-33 PTC fault
- PTC fault (more >>)

    E-37 Servo lock fault
- Servo lock fault (more >>)

    E-39 Auto-tuning error
- Auto-tuning error (more >>)  

+ VF-MB1 User manual  

+ VF-MB1 Fault index 

+ VF-MB1 Fault codes 1 >>

+ VF-MB1 Fault codes 2 >>

+ VF-MB1 Fault codes 3 >> 

+ Toshiba VF-MB1 -

+ Toshiba Main page  

++ VFD Main page  

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