Code

Name

Causes

Possible Solutions

oL7

High Slip Braking Overload

The load inertia is too large.

  • Decrease deceleration times in C1-02, C1-04, C1-06, and C1-08 [Deceleration Times] for applications that do not use High Slip Braking.

  • Use a braking resistor to decrease the deceleration time.

An external force on the load side rotated the motor.

Something is preventing deceleration on the load side.

The value set in n3-04 [HSB Overload Time] is too small.

  • Increase the value set in n3-04.

  • Connect a thermal overload relay to the motor, and set n3-04 = 1200 s (maximum value).
Note:

  • The drive detects this fault if the output frequency is constant for longer than n3-04.

  • Do a Fault Reset to clear the fault.