Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
116
5.2.4.1 X-Axis Limit Switch-Stop Installation and Adjustment
The limit switch-stops/cams for the X-axis are mounted to the front side of the table and
can be adjusted along the length of the T slot. Each limit switch-stop must be set to a
specific distance from the end of the table in order to maximize travel and simultaneously
prevent serious damage to the machine in the event of a crash. All limit switches are set at
the factory for maximum travel.
Procedure for Setting X Limit Switch
1. Loosen the stops or cams on each side of the table.
2. Slide each stop or cam within the T-slot to the end of the table.
3. Slowly move the table to one side by hand until the end of the travel is reached.
4. In DRO mode set X = 0 ABS.
CAUTION!
The limit switch must be triggered a minimum of ½” before the machine reaches its travel
limits in both directions. This allows sufficient room for the servomotors to stop when the
limit switch is hit at 150 ipm.
5. Using the DRO display, back the table off 1/2".
6. Lock the limit switch bracket in place.
7. Jog the table at 100ipm to each side and verify that the limit switch is working properly.
Also, make sure that the table does not exceed its travel and crash.
5.2.4.2 Y Axis Limit Switch-Stops
The limit switch-stops for the Y-axis are mounted on the side of the knee. The limit switch is
triggered by hitting the cam stop on the saddle. The cam is placed to ensure maximum
travel. The 2 input limit switch design allows for slight adjustment of each cam.