Cause : Overtorque Detection 1 comes when the current has exceeded the value set for Torque Detection Level 1 (L6-02) for longer than the allowable time (L6-03).

1. Parameter settings are not appropriate for the load. Check L6-02 and L6-03 settings.
2. Fault on the machine side (e.g., machine is locked up). Check the status of the load. Remove the cause of the fault.