Yale ZAPI MPW045-E User Manual

Troubleshooting 2200 YRM 1067
Dash Display
Controller LED Handset or PC
AL6 6 Flashes HIGH FIELD CURR, BW HIGH FLD CURR,
FW HIGH FLD CURR
CONDITION
High field current values measured by controller.
TRUCK RESPONSE
Traction and hydraulic functions disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Field wires are loose, damaged, or shorted.
Verify connection of field wires to motor and con-
troller.
• Motor field winding is shorted or too low.
Check motor field for correct resistance and conti-
nuity. It should measure approximately 0.5 ohms.
• Failure of current sensor in controller.
Replace controller.
• Failure of field current driver in controller.
Replace controller.
LOGIC
Measured field current is
too high.
Dash Display
Controller LED Handset or PC
AL6 6 Flashes NO FIELD CURR
CONDITION
Low field current values measured by controller.
TRUCK RESPONSE
Traction function disabled.
POSSIBLE CAUSES AND TEST PROCEDURES
• Cable connection to motor field is loose or damaged.
Verify connection of field wires to motor and con-
troller.
• Motor field winding is open or too high.
Check motor field for correct resistance and conti-
nuity. It should measure approximately 0.5 ohms.
• Main contactor circuit damaged or disconnected.
Verify electrical connection between controller and
contactor.
Check contactor coil for correct resistance of 22.0
ohms.
Refer to the section Electrical System 2200 YRM
1007 for more information on troubleshooting electrical
system circuits and components.
LOGIC
Measured field current
is too low.
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Yale ZAPI MPW045-E Specifications

General

Brand	Yale
Model	ZAPI MPW045-E
Category	Controller
Language	English