Spindle Output Stabilizing Control - Mitsubishi Electric MDS-D-SPJ3 Specification Manual

3-2-11 Spindle output stabilizing control

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.
3-2-12 High-response spindle acceleration/deceleration function
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.
MDS-D-SVJ3/SPJ3 Series Specifications Manual
3-2 Servo/Spindle control functions
3 - 11