Cause : Over torque 2 comes when the motor connected to the drive has exceeded the set torque limit for a certain period.

The ot1 error code on your Delta MS300 drive indicates an over-torque condition. This means the output current exceeds the over-torque detection level and exceeds over-torque detection time.

1. Configure the settings for Pr.06-10 and Pr.06-11 again.
2. Reduce the load.
3. Replace the motor with a larger capacity model.
4. Increase the setting values for Pr.01-12–Pr.01-19 (accel./decel. time).
5. Adjust the torque compensation (refer to Pr.07-71 torque compensation gain) until the current reduces and the motor does no stall.