50
TRAK Machine Tools
Southwestern Industries, Inc.
ProtoTRAK SMX, K2, K3 & K4 & Retrofit Safety, Installation, Maintenance, Service and Parts List Manual
3.4.2 X, Y, and Z-Axis Measurements Are Not Accurate
Measurements repeat, but with a dial indicator mounted to the bottom the spindle, traversing the length of a gage block
or some other measurement standard, the measurement is not accurate.
Possible Cause
Do This
The Calibration is incorrect
Recalibrate the machine.
See Calibration & Backlash Constants
Incorrect backlash values
If the machine does not repeat bi-directionally check
the backlash on the axis in question.
See Section 5.2.2.
3.4.3 The DRO Is Not Counting
The DRO for one axis is not counting when an axis is moved. Often times if this is the case the axis will fault. See
section on faulting.
Do the following Service Codes:
Code 33
Software Identification. This is needed if you call SWI Customer Service.
Code 100
Axis open loop test.
Used to check the maximum feedrate of an axis and if the encoders are counting.
Code 304 & 305
Turns off X and Y sensor or scale.
Possible Cause
Check This
Motor Encoder not counting
See Motor
diagnostics (not applicable with Glass Scale
option). Single feedback only.
Glass Scale or Sensor Failure
Does axis now count? If so, replace scale or sensor.
Computer/Pendant failure
See Computer/Pendant diagnostics
3.4.4 X, Y, and Z-Axis DRO Counting in Wrong Direction
The DRO is counting in the wrong direction.
The positive directions for each axis are:
X-axis
– Table moves to the left.
Y-axis
– Saddle moves toward the front of the machine.
Z-axis
– Quill moves up.
Do the following service code and procedures:
Code 33
Software Identification. This is needed if you call SWI Customer Service.
Code 313
Check the line that specifies the product.
If the product does not match the machine then the machine ID key will need to be replaced.
3.4.5 X, Y, & Z-Axis Electric Handwheels Count in Wrong Direction
The Electric Handwheels count in the wrong direction.
The positive directions for each Electric Handwheel are:
X-axis
- Electric Handwheel turns clockwise.
Y-axis
- Electric Handwheel turns counterclockwise.
Do the following service code and procedures:
Code 308
Reverse X-axis Handwheel Direction.
Code 309
Reverse Y-axis Handwheel Direction.
