Specifications
Southwestern Industries, Inc.
ProtoTRAK
SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
42
Possible Cause Check This
Sensors or glass scales are counting in
opposite direction of motor encoder
Reverse directions with codes 321 and 322
The home positions or tools are not set
correctly
See the Controls Programming, Operations and Care
manual.
The Sensor or Glass Scale is not
reading.
See TRAK Sensors or Glass Scales diagnostic Section
4.6 or 4.7
Bad Motor Encoder See Motor diagnostics Section 4.4
3.2.2 Slow Down Axis
The axis slows down and moves at a feedrate that is lower than rapid or than the
programmed feedrate.
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 129 Set's the maximum allowable arc accuracy error. This applies to arcs only.
Possible Cause Check This
The maximum allowable Arc Accuracy is
set too low.
This value will only slow down the machine during arc moves.
The factory default is set at 0.001". Perform Code 129 to
check or change this value. See Service Codes section
Incoming AC voltage is inadequate
Perform Code 100. See Service Codes - Section 4.9 and
Electrical Section 4.8
Table and Saddle Locks are locked Make sure the Table and Saddle Locks are unlocked.
Inadequate or no Lubrication to
Ballscrews and Way surfaces
Make sure all the Way surfaces are getting proper lubrication.
If not, check to make sure that the lube pump is functioning
properly. Also check for any pinched or blocked oil lines. See
Lubrication Section 4.1.3
X and Y Gibs are not adjusted properly Check the adjustment of the X and Y Gibs using the X and Y
Gib adjustment procedures.
Binding in the Drive Train Check Repeatability using the Repeatability and Positional
Accuracy procedure. Check the torque reading of the Drive
Train. Step by step, carefully inspect the Drive Train for any
binding. It may be necessary to disassemble and then
reassemble the Drive Train. See Mechanical Drive Train (X, Y)
Section 4.2
Servo Drive failure See Servo Drive Section 4.5
Motor failure See Motor Section 4.4
3.2.3 Axis Will Not Jog
The system powers up but will not respond to the jog command.
Do the following Service Codes and procedures:
• 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.










