STEP fault codes
Fault codes
- 0 Main contactor fault
- 02 Door lock released during run (emergency stop)
- 03 Elevator overshoot upward
- 04 Elevator overshoot downward
- 05 Door lock fails to disconnected
- 06 Door lock fails to close
- 07 Floor correction communication error
- 08 CAN communication error
- 09 Inverter fault
- 1 Module fault (IGBT short circuit)
- 10 Output phase loss
- 11 Lower slowdown switch 1 misaligned
- 12 Encoder fault
- 13 Lower deceleration switch 2 misaligned
- 14 Upper deceleration switch 3 misaligned
- 15 Lower deceleration switch 3 misaligned
- 16 Motor phase sequence reversed
- 17 Runaway
- 18 Hoist communication error
- 19 Door limit switch fault
- 2 Hoist forward limit fault
- 20 Slip protection
- 21 Software overcurrent (abc phase instantaneous overcurrent)
- 22 Motor reverse rotation
- 23 Elevator overspeed
- 24 Elevator underspeed fault
- 25 RTC battery undervoltage
- 26 Encoder not learned warning
- 27 Software overcurrent (current active value overcurrent)
- 28 Auto-tuning failure
- 29 AFE fault
- 2D SP controller fault
- 3 Overheat
- 30 Overspeed
- 31 Motor high-speed overcurrent
- 32 Safety circuit open during operation
- 33 Inspection safety circuit bypassed
- 34 KMC contact detection fault
- 35 Brake contactor contact fault
- 36 Output contactor contact fault
- 37 Door lock contactor contact fault
- 38 Brake switch fault
- 39 Instantaneous current too high alarm
- 4 Hoist reverse fault
- 40 Run signal fault
- 41 Star-sealing detection fault
- 42 Deceleration switch action fault
- 43 External input fault
- 44 Reserved
- 45 Advance door opening relay detection fault
- 46 Electronic UCMP board fault
- 47 Analog input fault
- 48 Temperature sampling disconnected
- 49 Communication error
- 5 Hoist low-speed fault
- 50 Parameter read error
- 51 Encoder Z signal fault
- 52 UCMP parameter setting error
- 53 Door run command error (alarm)
- 54 Door auto-tuning failed (alarm)
- 55 Door-open obstruction fault (alarm)
- 56 Door close obstruction (alarm)
- 57 Door position switch fault (alarm)
- 58 CAN communication error
- 59 Door decelerate terminal damaged (alarm)
- 6 Hoist high-speed fault
- 60 Door belt slip (alarm)
- 61 Start signal fault
- 62 No speed output
- 63 Brake test circuit fault
- 64 Brake holding force severely insufficient
- 65 Brake holding force slightly insufficient
- 67 RTC fault
- 68 Leveling vane length and leveling switch distance combination invalid in auto-tuning
- 69 Auto-tuned vane count does not match set total floors and floor offset
- 7 Hoist motor overtemperature
- 8 DC bus overvoltage
- 9 DC bus undervoltage
- A020 Parameter checksum error
- A024 And CPLD communication error
- A02E And CPLD communication error
- A044 Motor code recognition error
- A049 Speed loop parameter setting error
- A100 Overcurrent
- A320 Brake resistor overload
- A400 Overvoltage
- A410 Undervoltage
- A720 Motor overload
- A750 Locked rotor
- A820 Encoder EEPROM data checksum error
- A830 Encoder battery low battery
- A840 Encoder open
- A850 Encoder overspeed
- A851 10000 line encoder fault
- A880 Encoder multi-turn fault
- A891 Acceleration fault
- A930 Encoder battery alarm
- A961 CAN send soft-charge overflow
- A962 CAN send soft-charge overflow
- A964 CAN bus error
- AD00 Position out of tolerance
- ADC Fault
- Ab33 Current zero point fault
- B770 Power loss
- DI Input X0-X6 status
- DO Output K1-K4/Y0/Y1
- Humidity Fault
- I2t Active value overcurrent
- IGBT Short circuit fault
- KMY Detection fault
- PT Detection fault
- Sincos Encoder fault
- UVW Encoder phase sequence error
- a-00 Fault reset acceptable
- a-01 Undervoltage indication
- a-05 Frequency point setting error
- a-06 Coast to stop on short power interruption
- a-07 DC braking
- a-08 Run retry in progress
- a-10 Low-speed sleep
- a-11 Keypad key fault
- a-12 Parameter initialization error
- a-13 Analog signal lost
- e-01 Overcurrent
- e-02 Phase-to-phase short circuit fault
- e-03 Start overcurrent
- e-04 Ground fault
- e-06 Underload fault
- e-07 Over torque fault
- e-11 Overvoltage
- e-12 DC bus undervoltage
- e-21 Inverter overload
- e-22 Motor overload
- e-23 Braking resistor overload
- e-24 Inverter overheat
- e-25 Motor PTC overheat
- e-31 EEPROM error
- e-32 Control board fault
- e-33 Communication error
- e-34 Current sensor fault
- e-35 Network error
- e-36 Inverter type fault
- e-38 AI1 signal loss
- e-39 Inverter internal communication error
- e-41 Input phase loss
- e-42 Output phase loss
- e-43 Emergency stop
- e-45 Torque boost too large
- e-46 Auto-tuning fault
- e1 Display digit count exceeded by 1
- tun1 Auto-tuning in progress