Vr (vector speed ratio), Motion – Yaskawa SMC–4000 User Manual

Page 253

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SMC–4000 User Manual

VR (Vector Speed Ratio)

[Motion]

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 (Vector Speed)

or the operators < and > used with

CR (Circle)

,

VP (Vector Position)

and

LI

(Linear Interpolation Distance)

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 (Vector Acceleration)

and

VD

(Vector Deceleration)

.

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.

USAGE:

OPERAND USAGE:

_VRn contains the vector speed ratio of the specified coordinate system, S or T.

RELATED COMMANDS:

VS (Vector Speed)

EXAMPLES:

*Note UseVR for feedrate override, when specifying the speed of individual segments using the

operator ‘<’.

While Moving

Yes

Minimum n Value

0.0001

In a Program

Yes

Maximum n Value

10

Command Line

Yes

Default Value

1

Default Format

-

#A

Vector Program

VMXY

Vector Mode

VP 1000,2000

Vector Position

VE

End Sequence

VS 2000

Vector Speed

BGS

Begin Sequence

AMS

After Motion

JP#A

Repeat Move

#SPEED

Speed Override

VR ratio

Set ratio according to variable

JP#SPEED

Loop

XQ#A,0; XQ#SPEED,1

Execute task 0 and 1 simultaneously

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