OMS MAXnet, User Manual

Page: 62 / 67

SPECIFICATIONS APPENDIX C
MAXnet User’s Manual
Numbers are entered for each axis
commanded to move. An axis may be
skipped by entering the comma with no
parameter. The command may be
prematurely terminated with a “;”, i.e. a
move requiring only the X and Y axes would
use the command MR#,#; followed by the
GO command. Each axis programmed to
move will start together upon executing the
GO command. The MAXnet can be switched
back to the single-axis mode by entering the
desired single axis command such as AX.
PROGRAMMING EXAMPLES
In a typical move requirement where it is
desired to home the stage then move to a
specified position, the following will
demonstrate the programming for a single
axis:

Initialize the velocity and acceleration
parameters to a suitable value. Set a
PID filter gain values. Enable the PID
hold mode. Perform the home
operation initializing the position
counter to zero. Perform a motion to
an absolute position of 10,000 and set
the done flag for that axis when the
move is finished.
The following would be input from the
host computer:
AX;
VL5000;
AC50000;
KP20;
KI1;
KD45;
CL1;
HM0;
MA10000;
GO;
ID;
In a move requiring a three axis coordinated
move to a select position the following
commands could be used:
AM;
VL5000,5000,5000;
AC50000,50000,50000;
MT1000,2000,3000;
GO;
ID;
The controller would calculate the relative
velocities required to perform a straight line
move from the current position to the
desired absolute position so that all axes
arrive at their destinations at the same time.
The following demonstrates cutting a hole
with a 10,000 count radius using variable
velocity contouring with circular
interpolation:

The vector velocity is set to 1000 counts
per second. A contour is defined
beginning at coordinates 0,0 on the X
and Y axes.

General purpose I/O7 is turned on,
which could turn on the cutting torch or
laser starting the cut at the center of the
circle.

A half circle is cut from the center to the
outside of the hole positioning the
cutting tool at the start of the hole.
The hole is then cut, the torch turned off, the
stage stopped and the contour definition
completed.
The following would be input from the host
computer:
AA;
VOA0,5;
VV1000,1000;
VP0,0;
VIO0100,,0100;
VC0,5000,-180;
VC0,0,-360;
VIO0,,0100;
VV1000,0;
VP-1000,0;
VE;
During this sequence the VO command or
an analog input may be used to vary the
vector velocity from 0-200% of the program
vector velocity.
SPECIFICATIONS
Velocity
0 to 4,194,176 pulses per second
Acceleration
0 to 8,000,000 pulses per second
Position range
4,294,967,295 pulses (+/- 2,147,487,647)