Speed-Position Switching Control (Inc Mode) - Mitsubishi Electric MELSEC-LD77MS2 User Manual

9.2.16 Speed-position switching control (INC mode)

In "speed-position switching control (INC mode)" ("
speed/position, Reverse run: speed/position), the pulses of the speed set in "
" are kept output on the axial direction set to the positioning data. When
Command speed
the "speed-position switching signal" is input, position control of the movement amount
set in "
Positioning address/movement amount
Da.6
"Speed-position switching control (INC mode)" is available in two different types:
"forward run: speed/position" which starts the axis in the forward run direction and
"reverse run: speed/position" which starts the axis in the reverse run direction.
Use the detailed parameter 1 "
the choice for "speed-position switching control (INC mode)".
Setting item
Speed-
position
Pr.81
function
selection
(Note): If the set value is other than 0 and 2, it is regarded as 0 and operation is performed in the INC mode.
For details of the setting, refer to Section 5.2 "List of parameters".
Switching over from speed control to position control
(1) The control is selected the switching method from speed control to position
control by the setting value of "
Setting item
Speed-
position
switching
Cd.45
device
selection
The switching is performed by using the following device when "2" is set.
Setting item
Speed-
position
Cd.46
switching
command
Pr.81 Speed-position function selection" with regard to
Setting
Setting details
value
Speed-position switching control
0
(INC mode)
Cd.45
Setting
Setting details
value
The device used for speed-
position switching is selected.
0: Use the external command
signal for switching from speed
control to position control
1: Use the near-point signal for
switching from speed control to
position control
2: Use the "
Cd.46
switching command
from speed control to position
control
Setting
Setting details
value
1: Switch from speed control to
1
position control
9 - 92
Chapter 9 Major Positioning Control
Control method
Da.2
" is exercised.
Buffer memory address
LD77MS2
LD77MS4
Speed-position switching device selection
Buffer memory address
LD77MS2
LD77MS4
1566+100n
Speed-position
" for switching
Buffer memory address
LD77MS2
LD77MS4
1567+100n
" = Forward run:
Da.8
LD77MS16
34+150n
".
LD77MS16
4366+100n
LD77MS16
4367+100n