YASKAWA GA700 Series Technical Manual page 638

12.2 A: Initialization Parameters
Torque Compensation (Torque Bias)
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
Sequence Circuit Configuration
Time chart: Increase
Time chart: Decrease
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.
638
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.
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.
Description
YASKAWA SIEPC71061705H GA700 Series Technical Manual