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ET[7]=,120
8th point in the ECAM table
ET[8]=,60
9th point in the ECAM table
ET[9]=,20
10th point in the ECAM table
ET[10]=,0
Starting point for next cycle
EB 1
Enable ECAM mode
JGX=4000
Set Z to jog at 4000
EG ,0
Engage both X and Y when Master = 0
BGX
Begin jog on Z axis
#LOOP;JP#LOOP,V1=0
Loop until the variable is set
EQ,2000
Disengage Y when Master = 2000
MF2000
Wait until the Master goes to 2000
ST X
Stop the Z axis motion
EB 0
Exit the ECAM mode
EN
End of the program
Contour Mode
The DMC-14XX also provides a contouring mode. This mode allows any arbitrary position curve to
be prescribed for any motion axes. This is ideal for following computer generated paths such as
parabolic, spherical or user-defined profiles. The path is not limited to straight line and arc segments
and the path length may be infinite.
Specifying Contour Segments
The Contour Mode is specified with the command, CM. For example, CMXY specifies contouring on
the X and Y axes. Any axes that are not being used in the contouring mode may be operated in other
modes.
A contour is described by position increments which are described with the command, CD x,y over a
time interval, DT n. The parameter, n, specifies the time interval. The time interval is defined as 2
n
ms, where n is a number between 1 and 8. The controller performs linear interpolation between the
specified increments, where one point is generated for each millisecond.
Consider, for example, the trajectory shown in Fig. 6.5. The position X may be described by the
points:
Point 1
X=0 at T=0ms
Point 2
X=48 at T=4ms
Point 3
X=288 at T=12ms
Point 4
X=336 at T=28ms
The same trajectory may be represented by the increments
Increment 1
DX=48
Time Increment =4
DT=2
Increment 2
DX=240
Time Increment =8
DT=3
Increment 3
DX=48
Time Increment =16
DT=4
When the controller receives the command to generate a trajectory along these points, it interpolates
linearly between the points. The resulting interpolated points include the position 12 at 1 msec,
position 24 at 2 msec, etc.
DMC-14x5/6
Chapter 6 Programming Motion
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