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Galil Motion Control - manc 18x 6 (Page 222)

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Galil Motion Control - manc 18x 6
DMC-18x6 Command Reference
214
VR
FUNCTION: Vector Speed Ratio
DESCRIPTION:
The VR sets a ratio to be used as a multiplier of the current vector speed. The vector speed can be
set by the command VS or the operators < and > used with CR, VP and LI commands. VR
takes effect immediately and will ratio all the following vector speed commands. VR doesn't
ratio acceleration or deceleration, but the change in speed is accomplished by accelerating or
decelerating at the rate specified by VA and VD.
ARGUMENTS: VR s,t
where
s and t are between 0 and 10 with a resolution of .0001. The value specified by s is the vector ratio
to apply to the S coordinate system and t is the value to apply to the T coordinate system.
s = ?
Returns the value of the vector speed ratio for the S coordinate plane.
t = ?
Returns the value of the vector speed ratio for the T coordinate plane.
USAGE: DEFAULTS:
While Moving
Yes
Default Value
1
In a Program
Yes
Default Format
2.4
Command Line
Yes
Controller Usage
ALL CONTROLLERS
OPERAND USAGE:
_VRn contains the vector speed ratio of the specified coordinate system, S or T.
RELATED COMMANDS:
Vector Speed
EXAMPLES:
#A
Vector Program
VMAB Vector
Mode
VP 1000,2000
Vector Position
CR 1000,0,360
Specify Arc
VE
End Sequence
VS 2000
Vector Speed
BGS Begin
Sequence
AMS After
Motion
JP#A Repeat
Move
#SPEED Speed
Override
VR@AN[1]*.1
Read analog input compute ratio
JP#SPEED Loop
XQ#A,0; XQ#SPEED,1
Execute task 0 and 1 simultaneously
Note:
VR is useful for feed rate override, particularly when specifying the speed of individual segments
using the operator `<' and '>'.

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