BUG-O Systems SE-2PTD - Manual (Page 15)

15
PROGRAMMING SHAPES
The following pages describe the shape programming capabilities of the machine. Cuts of any
arbitrary shape can be programmed, by building up the shape from a sequence of straight lines
and circular arcs.
For every change of pipe diameter in the machine, the new diameter has to be entered into the
machine. If the machine is set to cut a square hole on a 4" (102 mm) pipe, and an 8" (203 mm)
diameter pipe is put into the chuck, the hole will be rectangular, stretched out to twice the dimension
in the circumferential direction.
NOTE: The pipe diameter is a background setting and affects all programs.
Press “E” on the pendant keypad to enter the diameter; the display will prompt you for the pipe
diameter first, and then the segment end slowdown. The shapes are laid out on a flat surface as
if the pipe had been slit and opened up flat, and the cut line developed on it.
All programming is done using the hand held pendant. Shapes are built up only from the segments
provided (see Shape Programming Chart): circular arcs and straight lines, square or inclined, by
selecting type and quadrant for each segment. A shape can have up to 50 segments. Some other
operations, like solenoid “ON / OFF”, TIME DELAY, or REPEAT another shape, also count as one
segment each, if used.
For oxy/acetylene cutting, first position the torch at the starting point. Next turn on the preheat
gases, and wait until the required preheat is reached. Push the START / RESUME button, the
machine will turn on the cutting oxygen and start cutting the current shape. At the end of the shape
the machine will turn off the cutting oxygen and stop. Manually turn off the preheat gases.
When plasma cutting, an external contact relay is used instead of the cutting oxygen solenoid. A
delay to allow for initiating the arc and piercing the material should be the first segment programmed.