Cause: AT TORQUE LIMIT ERROR comes when the drive has reached its Active Torque Limit and is experiencing an error or unexpected behavior at this limit. 

ATNE AT TORQUE LIMIT ERROR fault in Parker AC890 drive indicates TORQUE LIMIT ERROR. This means that the Active Torque Limit has been exceeded during operation. 

Troubleshooting Steps

• Analyze the application's torque demands and identify any conditions where the limit is being reached.
• Carefully verify the Active Torque Limit parameters in the drive.
• Double-check the motor parameters programmed into the drive and run motor autotune.
• Inspect the feedback device and its wiring if closed-loop torque control is being used.
• Review the drive's torque control mode and related parameters.