LSIS XBF-PN04B, User Manual, Page: 463 / 820

Chapter 9 Functions
9-36
Remark
(1) Speed limit for Sub-axis when interpolation speed is main axis speed
When using linear interpolation control and moving distance of main < moving distance of sub, it is possible that
sub-axis speed calculated by positioning module exceeds
「
Speed limit
」
of basic parameter. In this case, error
(error code: 261) arises and main-axis speed is recalculated for sub-
axis not to exceed “Speed Limit” and
operates. To prevent errors, reduce the main-axis speed so that sub-
axis speed doesn‟t exceed the “Speed
Limit”.
(2) The speed when the moving distance of main-axis is 0 and interpolation speed is main axis speed
When the moving distance of main-axis is 0, the operation speed of main-axis operation data becomes actual
interpolating speed. In this case of 2 axes linear interpolation where the moving distance of main-axis is 0, only
sub-axis operates at the speed set on command axis.
■ Setting example of XG-PM
▪ Operating data of Main-axis
Step no. Control method
Operation
method
Target position
[pls]
Operation speed
[pls/s]
Acc. no. Dec. no. M code Dwell time
Sub axis
setting
1
Absolute, Linear
interpolation
Single,
Continuous
5000 1000 No.1 No.1 0 100 Axis2
2
Absolute, Linear
interpolation
Single, End 5000 1000 No.1 No.1 0 100 Axis2
▪ Operating data of Sub-axis
Step no. Control method
Operating
method
Target position
[pls]
Operation speed
[pls/s]
Acc. no. Dec. no. M code Dwell time
Sub axis
setting
1
Absolute, single
axis position
control
Single, End 1000 0 No.1 No.1 0 0
Axis-
undecided
2
Absolute, single
axis position
control
Single, End 3000 0 No.1 No.1 0 0
Axis-
undecided
■ Operating pattern
0
Position of sub-axis
Position of main-axis
5000
3000
Speed of main-axis
Time
Operating step : 1 Operating step : 2
Start
command
Main-axis
in operation
ON
ON
Speed of sub-axis
Time
Operating step : 1 Operating step : 2
Sub-axis
In operation
ON
Action of
main-axis
Action of
sub-axis
1000
1000
200
1000
0
0
Dwell time
Trace of linear
interpolation
Operating step : 1
Operating step : 2
Operating at the
speed of main-axis
(Moving amount of
main-axis = 0)