This function enters the torque compensation (torque bias) signal that matches a set load from the MFAI terminal in Closed Loop Vector Control to decrease the overshoot when you open and close the brake. You must detect the load and motoring/regeneration on the machine side before you use the function. If there is a polarity error, shock can increase.

 

Item

Description

Sequence Circuit Configuration

Time chart: Increase

Enter the analog signal as the torque compensation (torque bias) signal as specified by the load quantity before drive operation until drive operation completes. The default setting is 10 V/100% torque.

Enter a positive polarity during a motoring load, and enter a negative polarity during a regenerative load.

Time chart: Decrease

Enter the analog signal as the torque compensation (torque bias) signal as specified by the load quantity before drive operation until drive operation completes. The default setting is 10 V/100% torque.

Enter a negative polarity during a motoring load, and enter a positive polarity during a regenerative load.
Note:

  • Holds through an external source to not change the torque compensation signal during run. If you change the torque compensation signal during run, the motor can oscillate.

  • When you set motor reverse to the increase command and set motor forward to the decrease command, the polarity of the torque compensation signal will reverse.