HNC fault codes
Fault codes
- A1 Main circuit undervoltage
- A10 Motor current exceeds drive maximum setting
- A11 Motor overspeed
- A12 Following error too large
- A13 Motor prolonged overload
- A14 Control parameter read error
- A16 Control board hardware fault
- A17 Drive unit overheat
- A19 AD conversion fault
- A2 Main circuit overvoltage
- A20 Hardware overcurrent alarm
- A22 Parameter auto-tuning error
- A222 Inertia identification error
- A23 NCUC data frame check error
- A24 NCUC data error
- A25 NCUC communication link disconnected
- A26 Motor encoder signal communication error
- A27 Full closed-loop sin/cos encoder signal fault
- A28 Full closed-loop encoder wire break
- A3 Power module fault
- A30 Motor phase sequence error
- A31 Orientation fault
- A32 Z pulse loss
- A33 Excessive speed deviation
- A34 Tamagawa encoder battery low warning
- A37 Full closed-loop feedback direction fault
- A4 Braking fault
- A41 Synchronous motor rotor initial position identification failed
- A42 Synchronous motor rotor initial position identification failed
- A43 Drive maximum overcurrent detection alarm
- A44 I2t overload alarm
- A47 Control board hardware fault
- A483 Master axis alarm
- A484 Slave axis communication error
- A485 Master axis communication error
- A486 Slave axis alarm
- A487 Main slave axis current excessive deviation
- A49 Motor stall
- A50 Phase sequence error
- A51 Motor travel distance too small
- A52 Zero calibration deviation too large
- A6 Motor overheat
- A60 Motor encoder line count setting error
- A61 Full closed-loop encoder line count setting error
- A7 Encoder data signal error
- A8 Encoder type fault
- A9 Motor locked rotor