Over torque 1 (ot1)

When output current exceeds the over-torque detection level (Pr.06-07) and exceeds over-torque detection time (Pr.06-08), and when Pr.06-06 or Pr.06-09 is set to 2 or 4, the ot1 error displays.

Incorrect parameter setting - Reset Pr.06-07 and Pr.06-08

The load is too large -

Reduce the load.
Replace the motor with a larger capacity model.

Fault treatment parameter

Pr.06-06
0: No function
1: Continue operation after Over-torque detection during constant speed
operation
2: Stop after Over-torque detection during constant speed operation
3: Continue operation after Over-torque detection during RUN
4: Stop after Over-torque detection during RUN