Mitsubishi Electric QD77MS User Manual page 558

Speed-position switching control (INC mode) start
Speed-position switching signal
Cd.23 Speed-position switching control
movement amount change register
Speed-position switching latch flag
( Md.31 Status : b1)
Fig. 9.15 Position control movement amount change timing
POINT

The machine recognizes the presence of a movement amount change request when the data is
written to "[Cd.23] Speed-position switching control movement amount change register" with the
sequence program.

The new movement amount is validated after execution of the speed-position switching control (INC
mode), before the input of the speed-position switching signal.

The movement amount change can be enable/disable with the interlock function in position control
using the "speed-position switching latch flag" ([Md.31] Status: b1) of the axis monitor area.
Speed control
Position control
Movement amount
change possible
ON
OFF
0 P2
ON
ON
OFF
9 - 100
Chapter 9 Major Positioning Control
Position control start
Setting after the speed-position
switching signal ON is ignored
P3
P2 becomes the position control movement amount
OFF
t