Galil DMC-3425 user manual X-Y Table Controller, Jp #A

The program starts at a state that we define as #A. Here the controller waits for the input pulse on I1. As soon as the pulse is given, the controller starts the forward motion.

Upon completion of the forward move, the controller outputs a pulse for 20 ms and then waits an additional 80 ms before returning to #A for a new cycle.

Instruction	Interpretation
#A	Label
AI1	Wait for input 1
PR 6370	Distance
SP 3185	Speed
BGA	Start Motion
AMA	After motion is complete
SB1	Set output bit 1
WT 20	Wait 20 ms
CB1	Clear output bit 1
WT 80	Wait 80 ms
JP #A	Repeat the process

START PULSE I1

MOTOR VELOCITY

OUTPUT PULSE

output

TIME INTERVALS

move wait ready move

Figure 7.1 - Motor Velocity and the Associated Input/Output signals

A-B (X-Y) Table Controller

An A-B-C system must cut the pattern shown in Fig. 7.2. The A-B table moves the plate while the C- axis raises and lowers the cutting tool.

The solid curves in Fig. 7.2 indicate sections where cutting takes place. Those must be performed at a feedrate of 1 inch per second. The dashed line corresponds to non-cutting moves and should be performed at 5 inch per second. The acceleration rate is 0.1 g.

The motion starts at point A, with the C-axis raised. An A-B motion to point B is followed by lowering the C-axis and performing a cut along the circle. Once the circular motion is completed, the C-axis is raised and the motion continues to point C, etc.

146 • Chapter 7 Application Programming DMC-3425