Specifications

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Southwestern Industries, Inc.
TRAK LPM Programming, Safety, & Operating Manual
offset, so that when the program is commanded to position to ABS Zero, it will move to
that spot that you defined.
As a rule of thumb, if you are going to be working on round stock as shown above, you
should make it so that Y ABS zero and Z ABS zero remains at the centerline of your part.
For our 4
th
axis engraving and 4
th
axis mill events, this is a must. Therefore, every Z
value that is to be programmed, will be referring to the radius of the part. If however,
you will be working on a square part or something that only needs to be indexed, then
you can set your Y and Z ABS zero wherever is more convenient to you.
15.5.2 Tool Path
The tool path viewer will now rotate the part about the A axis as you use the STEP
feature. The feature or surface in question will be rotated so it will be shown as being
perpendicular to where the cutting tool would make contact with the part. This feature
makes it easier to see the details of your part when you have programmed multiple A axis
surfaces.
15.6 MACHINE SETUP Mode
15.6.1 SERV CODES Screen
The following new service codes have been modified or added to the PMX control for the
4
th
axis unit. For more information on some of the service codes, see the LPM Service
Manual.
1. Service Code 318 – used to turn on the 4
th
axis option software. See section 15.0.
2. Service Code 128 – add the ability to compensate for A axis backlash. Value
entered in decimal degrees. See service manual for more information.
3. Service Code 505 – added a prompt for the A axis motor index
4. CODE 506: Set 4
th
Axis Offsets
The following service code sets the X, Y, Z and A offsets for the 4
th
axis unit.
The follow describes what each offset is.
1. X Offset - the distance along the X axis from the face of the 4
th
axis to the
center of ball lock C.
2. Y Offset - the distance along the Y axis from the centerline of the 4
th
axis to
the center of ball lock C. The Y offset should be set to 6.0000” based on how
the 4
th
axis is keyed to the ball lock plate.
3. Z Offset – the distance along the Z axis from the top of the table to the
centerline of the 4
th
axis.
4. Home Offset – the offset in degrees you need to enter to get the 4
th
axis
vernier dial to line up with the marker on the 4
th
axis casting.
See the LPM service manual for how to set the Z offset location.