Code

Name

Causes

Possible Solutions

oH5

Motor Overheat (NTC Input)

The motor temperature detected by NTC thermistor is more than the value set in L1-16 [Motor 1 Overheat Temperature] or L1-18 [Motor 2 Overheat Temperature].

  • Correct motor thermistor wiring errors.

  • Correct the motor overheat temperature setting.

  • Check the load level, acceleration/deceleration time, and motor start/stop frequency (cycle time).

  • Adjust E1-04 to E1-10 [V/f Pattern Parameters].

  • Make sure that the motor cooling system is operating correctly, and repair or replace it if it is damaged.
Note:

If the drive detects this error, the terminal set to H2-01 to H2-04 = 10 [MFDO Function Select = Alarm] will activate.