DMC-1500
Chapter 6 Programming Motion
•
73
The smoothing function is specified by the following commands:
IT x,y,z,w
Independent time constant
VT n
Vector time constant
The command, IT, is used for smoothing independent moves of the type JG, PR, PA and the
command, VT, is used to smooth vector moves of the type VM and LM.
The smoothing parameters, x,y,z,w and n are numbers between 0 and 1 and determine the degree of
filtering. The maximum value of 1 implies no filtering, resulting in trapezoidal velocity profiles.
Smaller values of the smoothing parameters imply heavier filtering and smoother moves.
The following example illustrates the effect of smoothing. Fig. 6.6 shows the trapezoidal velocity
profile and the modified acceleration and velocity.
Note that the smoothing process results in longer motion time.
Example - Smoothing
Instruction Interpretation
PR 20000
Position
AC 100000
Acceleration
DC 100000
Deceleration
SP 5000
Speed
IT .5
Filter for S-curve
BG X
Begin
ACCELERATION
VELOCITY
VELOCITY
VELOCITY
ACCELERATION
Содержание DMC-1510
Страница 6: ......
Страница 18: ...6 Chapter 1 Overview DMC 1500 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 88: ...76 Chapter 6 Programming Motion DMC 1500 Figure 6 7 Motion intervals in the Home sequence...
Страница 90: ...78 Chapter 6 Programming Motion DMC 1500 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 137: ...DMC 1500 Chapter 7 Application Programming 125 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 157: ...DMC 1500 Chapter 10 Theory of Operation 145 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 160: ...148 Appendices DMC 1500 Card Level Layout...
Страница 178: ...166 Appendices DMC 1500 ICM 1100 Drawing 1 3 4 0 0 4 4 0 2 4 0 7 0 0 4 5 3 7 0 5 7 0 2 8 5 1 0 0 1 0 1 0 7 0 1 0 0...
Страница 180: ...168 Appendices DMC 1500...
Страница 198: ...186 Appendices DMC 1500 THIS PAGE LEFT BLANK INTENTIONALLY...