Mitsubishi Electric MELSEC-L LD75D, User Manual

Page: 341 / 818

339
CHAPTER 9 MAJOR POSITIONING CONTROL
9
9.
1 O
u
tline
o
f Major Pos
itioning
Cont
rols
CHAPTER 9
MAJOR POSITIONING CONTROL
9.1
Outline of Major Positioning Controls
"Major positioning controls" are carried out using the "positioning data" stored in the LD75.
The basic controls such as position control and speed control are executed by setting the required items in this
"positioning data", and then starting that positioning data.
The control system for the "major positioning controls" is set in setting item "[Da.2] Control system" of the positioning
data.
Control defined as a "major positioning control" carries out the following types of control according to the "[Da.2]
Control system" setting.
MAJOR POSITIONING CONTROL
[Da.2] Control
system
Description
Position
control
*1
Linear control
1-axis linear control
ABS linear 1
INC linear 1 Positioning of a designated 1 axis is carried out from the start
address (current stop position) to the designated position.
2-axis linear
interpolation control
*1
ABS linear 2
INC linear 2
Using a designated 2 axes, linear interpolation control is carried out
from the start address (current stop position) to the designated
position.
3-axis linear
interpolation control
*1
ABS linear 3
INC linear 3
Using a designated 3 axes, linear interpolation control is carried out
from the start address (current stop position) to the designated
position.
4-axis linear
interpolation control
*1
ABS linear 4
INC linear 4
Using a designated 4 axes, linear interpolation control is carried out
from the start address (current stop position) to the designated
position.
Fixed-feed control
1-axis fixed-feed
control
Fixed-feed 1
Positioning of a designated 1 axis is carried out from the start
address (current stop position).
(The "[Md.20] Current feed value" is set to "0" at the start.)
2-axis fixed-feed
control
*1
Fixed-feed 2
Using a designated 2 axes, linear interpolation control is carried out
from the start address (current stop position).
(The "[Md.20] Current feed value" is set to "0" at the start.)
3-axis fixed-feed
control
*1
Fixed-feed 3
Using a designated 3 axes, linear interpolation control is carried out
from the start address (current stop position).
(The "[Md.20] Current feed value" is set to "0" at the start.)
4-axis fixed-feed
control
*1
Fixed-feed 4
Using a designated 4 axes, linear interpolation control is carried out
from the start address (current stop position).
(The "[Md.20] Current feed value" is set to "0" at the start.)
2-axis circular
interpolation control
*1
Sub point designation
ABS circular sub
INC circular sub
Positioning is carried out in an arc path to a position designated
from the start point address (current stop position), using the
designated 2 axes.
Center point
designation
ABS circular right
ABS circular left
INC circular right
INC circular left
3-axis helical
interpolation control
*1
Sub point designation
ABS helical sub
INC helical sub
Circular interpolation control is carried out with two of the three
axes. The other axis tracks the movement of the circular
interpolation control to carry out the positioning in helical or
tangential/normal control.
Center point
designation
ABS helical right
ABS helical left
INC helical right
INC helical left