2200 YRM 1067 Troubleshooting
Dash Display
Controller LED Handset or PC - 24V
AL10 LEDON(NoFlashing) VMN NOT OK
CONDITION
Measured voltage at traction motor inputs does
not match battery voltage.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Loose or damaged cable connections to motor.
Verify motor armature cables and connections.
• Ground between motor windings and chassis.
Check for grounds between motor chassis and ter-
minals.
• Damaged controller.
Voltage at –T terminal on controller should be the
same as the +B terminal.
Replace controller.
LOGIC
Occurs when controller
observes differences between battery voltage
and voltage supplied to the traction motor.
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