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Spindle motor's torque characteristic is suppressed due to voltage saturation in the high-speed rotation 

range, therefore the current control responsiveness significantly degrades, which may cause excessive 

current.

With this control, however, the current and flux commands are compensated to avoid the voltage saturation 

so that the current control responsiveness will not degrade.

This function enables reduction of the spindle motor's setting time (from when the command value becomes 

0 until when the motor actually stops) without being affected by the position loop gain, when the spindle 

motor stops under deceleration stop control using the S command.

This function is not active when the spindle is stopped while performing position control, such as orientation 

control and synchronous tapping control.