Overcurrent Condition (Operation, Adv. Code 1)

What does 18 mean?

This fault indicates that the drive detected an overcurrent condition during normal operation, meaning the motor current exceeded the safe operating limits of the drive's power devices. This can be caused by excessive mechanical load, incorrect motor parameters, sudden load changes, or mechanical binding. This trips the drive to protect itself and the motor.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Inspect the driven machinery for any mechanical binding, obstructions, or conditions that might cause shock loading or sudden increases in torque demand.

2. 4

   Increase acceleration and deceleration times if sudden torque demands during speed changes are triggering the overcurrent fault.