Spindle's Continuous Position Loop Control - Mitsubishi Electric MDS-D-SPJ3 Specification Manual

MITSUBISHI CNC
3 Function Specifications

3-1-5 Spindle's continuous position loop control

Under this control, position loop control is always applied to spindle, including when speed command is
issued (in cutting). There is no need for control changeover nor zero point return during orientation and C
axis control changeover. Therefore, the operation can be completed in a shorter time than the previous.
In acceleration/deceleration with S command, the acceleration/deceleration and orientation are always
controlled with the spindle motor's maximum torque.
3 - 6
Speed
Time
1
<Our conventional series>
Orientation
Speed
Zero point C-axis
return positioning
Time
<Our conventional series>
C-axis changeover
Speed
Reduced by 20%
Time
0.8
<MDS-D/DH/DM Series>
Speed
Time reduced
C-axis
positioning
Time
<MDS-D/DH/DM Series>