Position-Speed Switching Control - Mitsubishi Electric MELSEC-Q Series User Manual

9.2.18 Position-speed switching control

In "position-speed switching control" ("[Da.2] Control method" = Forward run:
position/speed, Reverse run: position/speed), before the position-speed switching
signal is input, position control is carried out for the movement amount set in "[Da.6]
Positioning address/movement amount" in the axis direction in which the positioning
data has been set. When the position-speed switching signal is input, the position
control is carried out by continuously outputting the pulses for the speed set in "[Da.8]
Command speed" until the input of a stop command.
The two types of position-speed switching control are "Forward run: position/speed" in
which the control starts in the forward run direction, and "Reverse run: position/speed"
in which control starts in the reverse run direction.
Switching over from position control to speed control
(1) The control is selected the switching method from position control to speed
control by the setting value of "[Cd.45] Speed-position switching device
selection".
Setting item
Speed-
position
[Cd.45] switching
device
selection
The switching is performed by using the following device when "2" is set.
Setting item
Speed-
position
[Cd.46]
switching
command
Setting
Setting details
value
The device used for speed-
position switching is selected.
0: Use the external command
signal for switching from
position control to speed
control
1: Use the proximity signal for
switching from position control
to speed control
2: Use the "[Cd.46] Speed-
position switching command"
for switching from position
control to speed control
Setting
Setting details
value
1: Switch from position control to
1
speed control
9 - 108
Chapter 9 Major Positioning Control
Buffer memory address
4366+100n
Buffer memory address
4367+100n