Dash Display
Controller LED
Handset or PC
CONDITION
AL10
LED ON (No Flashing)
EEPROM KO
Fault in the memory area where parameters
are stored.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Controller damaged.
Recycle key switch OFF and ON
If fault remains, replace controller.
Dash Display
Controller LED
Handset or PC
CONDITION
AL10
LED ON (No Flashing)
CAPACITOR CHARGE
Main controller capacitors did not charge
within 500 ms of key ON.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Loose or damaged wire connection.
Inspect and confirm wire connections at contactor,
pump motor, and traction motor.
• Short circuit in harness.
Disconnect main harness and check for shorts.
• Short circuit in component coil.
Disconnect battery. Disconnect all drive motor,
pump motor, solenoid, brake, and coil connections
at the component end of the harness. Tape
or secure the wire ends to prevent shorts.
Discharge controller by placing 200 , 2W resistor
across B+ and B terminals. Reconnect battery
and turn key ON. Use voltmeter to observe
voltage across B+ and B . If there is no voltage
increase, replace controller. If there is a steady
voltage increase to battery voltage, connect each
accessory one at a time until the fault occurs to
identify damaged component.
• Damaged controller.
Replace controller.
Dash Display
Controller LED
Handset or PC
CONDITION
AL10
LED ON (No Flashing)
VMN NOT OK
Measured voltage at traction motor inputs does
not match battery voltage.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• 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
terminals.
• Damaged controller.
Voltage at –T terminal on controller should be the
same as the +B terminal.
Replace controller.
Dash Display
Controller LED
Handset or PC
CONDITION
AL10
LED ON (No Flashing)
VFIELD NOT OK
Voltage measured at field connections is not correct.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURE
• Cable connection to motor field is loose or damaged.
Verify connection of field wires to motor and controller.
• Motor field winding is shorted to chassis.
Check motor field for shorts to chassis.
Measure motor field resistance. Motor field
should be approximately 1.5 ohms .
FOR REFERENCE ONLY 5/4/10 Rev A
(86 paginas)
(124 paginas)
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