Specifications

Southwestern Industries, Inc.
ProtoTRAK

SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
41
• Code 12 Feed Forward Constant.
• Code 127 Measure's the backlash in the system. Only used on machines with single
feedback.
• Code 128 Enter backlash compensation.
3.1.4.1 Every Part Has the Same Error
Possible Cause Check This
Machine Tool & Setup problem See Machine Tool & Setup Section 4.1
Programming Error In the program, look for common errors in programming
such as transposing numbers, tool diameters, and
pressing INC SET when ABS SET is meant. This is
especially suspected if the dimensional errors are larger
than a few thousandths. See the Controls Programming,
Operations and Care manual.
Configuration file that contains
calibration file and backlash constants
has been erased or corrupted.
Verify configuration file (Code 313) does not read default
values. Load saved configuration file from floppy disk in
electrics cabinet with Code 141.
Calibration or Backlash problem Recalibrate the machine. Reset the Backlash. Check
Repeatability and Positional Accuracy. See Calibration &
Backlash Constants
3.1.4.2 The Dimensional Errors Are Random or Accumulate in Size
Over the Part Program Run
Possible Cause
Check This
Machine Tool & Setup problem
See Machine Tool & Setup Section 4.1
TRAK Sensor or Glass Scale problem
Make sure that the Sensor or Glass Scale is installed
correctly according to the Sensor or Glass Scale
Installation procedures. Check for any loose brackets or
misalignment etc. Also, check to make sure the Sensor or
Glass Scale assemblies are functioning correctly. See
TRAK Sensors or Glass Scales Sections 4.6 & 4.7
X and Y-axis Drive Trains are loose
Check Repeatability using the Repeatability and Positional
Accuracy procedure. Step by step, carefully inspect the
Drive Train for any looseness. It may be necessary to
disassemble and then reassemble the Drive Train. See
Mechanical Drive Train (X, Y) Section 4.2
3.2 Problems Regarding the Motion of the Machine
3.2.1 Run Away Axis
The axis makes an unwanted move at rapid speed in one direction and faults out. This is
usually caused by an encoder signal being interrupted.
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 properly.