Cause : Torque prove comes when drive was not able to provide sufficient torque during Torque proving. The pre magnetizing time mode is wrong or too short. 

In ABB ACS880 drive, a "D100" warning "torque prove" indicates a potential issue during a motor torque verification process.

1. Check the motor and motor cables.
2. Check that the parameter settings are as follows:

• 21.1 Start mode = Const time
• 21.2 Magnetization time = Setting is not fixed. Enter an appropriate value.