YASKAWA CR700

Parameter Details
11
11.2 A: Initialization Parameters
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 581
Torque Compensation (Torque Bias)
This function allows the shock from opening and closing the holding brake to be decreased by entering the torque
compensation (torque bias) signal that matches a predefined load from the MFAI terminal while in CLV control.
Detection of the load and motoring/regeneration on the machine side must be done beforehand. If there is a
polarity error, shock may increase in some circumstances.
Item Description
Sequence Circuit Configuration
Time chart: Increase Enter the analog signal as the torque compensation (torque bias) signal in accordance with load amount prior to running the drive up
till 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 In the same manner as an increase, enter the analog signal as the torque compensation (torque bias) signal in accordance with load
amount before running the drive up to when it finishes running. 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 via an external source so that the torque compensation signal does not change during run. If the torque compensation signal is
changed during run, the motor may produce oscillation.
• When motor reverse is set to the increase command and motor forward is set to the decrease command, the polarity of the torque
compensation signal will reverse.