LSIS XBF-PN04B, User Manual, Page: 476 / 820

Chapter 9 Functions
9-49
9.2.8 Linear Interpolation Control with multiple axes
After executed by start command (
「
Indirect start
」
,
「
Synchronous start
」
), then executes interpolation
control from starting position to the target position with interpolation axes set as the main axis and sub axes.
There is no limit to the combination of interpolation axis and maximum 8 axes linear interpolation control is
available. Characteristics of action are same as linear interpolation control with 3 axes. For the details, refer to
linear interpolation control with 3 axes.
(1) Linear interpolation control with absolute coordinate (
「
Absolute, Linear Interpolation
」
)
(a) Executes multiple axes linear interpolation from starting position to the target position based on positioning
data. Positioning control is carried out on the basis of the origin point specified from homing.
(b) The direction of movement depends on the starting position and the target position.
■ Starting position < Target position : Positioning operation in forward
■ Starting position > Target position : Positioning operation in reverse
(2) Linear interpolation control with incremental coordinate (
「
Incremental, Linear Interpolation
」
)
(a) Executes multiple axes linear interpolation from starting position to the target position. Positioning control is
carried out on basis of the current stop position.
(b) Moving direction depends on the sign of the target position (Moving amount)
■ The sign is positive (+ or nothing) : Positioning operation in forward
■ The sign is negative (-) : Positioning operation in reverse
(3) Speed in multiple axes linear interpolation control
Operation speed in linear interpolation is determined based on “Interpolation speed selection” option of
extended parameter, main-axis speed or synthetic speed. If operation speed is set on command axis (main),
positioning module calculates the speed of sub-axis based on the moving amount. Sub-axis speed and
interpolation speed of the object are calculated as follows.
■ Interpolation speed selection is main-axis speed
) (
) (
) ( speed axis ) ( speed 2axis) (
1
2
1 2
S amount axismoving Main
S nt movingamou axis Sub
V Main V axis Sub


  
) (
) (
) ( ) ( speed ) 3 (
1
3
1 3
S amount axismoving Main
S amount axismoving Sub
V speed axis Main V axis aixs Sub


   
：
：
) (
) (
) ( ) ( speed (8axis)
1
8
8
S amount axismoving Main
S amount axismoving Sub
V axisspeed Main V axis Sub


   
2
8
2
3
2
2
2
1
) ( V V V V F ingspeed Interpolat
     