Delta RMC151 User Manual

Page 155

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3 Controller Features

+16: Auto Constant Velocity

4-7 Pt

0

Point 0 structure. Each field is described below:

4 .Type

Point 0 Type. It can have these values:
(0) Standard

Only the X and Y values are used.

(1) Fixed Velocity

The V value later in this structure specifies the velocity

to be used at this point. This point type is not supported

by Constant or Linear interpolated curves.
If a point is defined as Fixed Velocity, but the preceding

point is defined as Constant-Velocity, then the fixed

velocity will be ignored and will be the same as the

velocity calculated for the preceding Constant-Velocity

segment.

(2) Constant–Velocity Segment

The segment between this point and the next is

assumed to have fixed velocity. The velocity is implied

from the X

i

, Y

i

, X

i+1

, and Y

i+1

values, and therefore the V

value is unused. This point type is not supported by

Constant interpolated curves.
Setting the type of the last point in the curve to

Constant-Velocity Segment will have no effect; it will

behave as a Standard type.

5 .X

Point 0 X value
This value is only used when following a curve with absolute

master alignment (only available with the Curve Start

Advanced (88) command).
This value is not used when following a curve using the

Curve Start (86) or Curve Start (Prs/Frc) (87) comamnds;

the X

0

point is the current value of the master at the time

the command is issued. The remaining X-axis points are

computed relative the master position when the Curve Start

command is issued.

6 .Y

Point 0 Y value

7 .V

Point 0 V value. This is used only for type 1 (fixed velocity),

and ignored by all other types.

8-11 Pt

1

Point 1 structure

12-15 Pt

2

Point 2 structure

: :

4+(N-

1)·4..

7+(N-

1)·4

Pt

N-1

Point N-1 structure


If the Zero-Velocity Endpoints interpolation option is chosen, the velocity at the endpoints

will zero, regardless of the point type.

Multiple Curve Formats

The multiple curve formats allow submitting multiple curves at once. They share the same

curve data as the single curve formats with only slight modifications. When adding curves

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