Specifications

No Traction
Possible Causes and Test
Procedures
1. Ensure the cable between
the controller and the
control handle interface
module is securely
connected.
2. Verify the cable from the
control handle is secure to
the control handle
interface module
connector.
3. Verify all pin connections
are tight and making
contact.
4. Check for correct
connector wiring.
5. Check continuity of the
wires running from the
control handle to the
control handle interface
module.
Verify continuity while
rotating the control
handle arm from side to
side.
6. Check for control handle
wiring grounded to the
truck frame.
7. Check for correct
operation of the control
handle and control handle
interface module.
Use handheld
programmer to verify
signals from the control
handle being received by
the controller.
8. Improper parameters on
software, use handset to
verify parameters.
9. For testing procedures
refer to Control Card
Functional Test in this
section.
Logic
The control handle logic card communicates with the controller through the cable
between the control handle interface module and the J2 connection on the controller.
All signals for speed, direction, horn, and lift/lower are sent to the controller over this
cable.
LED
Code
Dash
Display
Model Programmer Display
3,2
Code
32
All
Main Cont Welded
Condition
The main contactor tips
are welded.
The main contactor
driver is shorted.
Truck Response
No Traction
Possible Causes and
Test Procedures
1. Tips are welded.
Replace contactor
tips. Refer to the
section Electrical
System 2200 YRM
1052 or Electrical
System 2200 YRM
929, Repairs.
2. Tips are not welded
and contactor is being
held closed by the
controller at startup.
Replace controller.
3. Check traction motor
terminal block for
cracks.
4. Verify that traction
motor brush leads are
tight.
5. Verify that traction
motor brushes are
free to move in brush
box.
Circuit Description
Logic
The controller performs an internal check for welded contactor and missing contactor
each time the controller is turned on.
LED
Code
Dash
Display
Model Programmer Display
3,3
Code
33
All
Field Short
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