Page 10 SC2000 Manual – 177/52301 Rev G 22
nd
October
2004
6 CONTROLLER CONNECTIONS
6.1 Power Connections (Figs. 2 to 7)
Power wiring must be made with 35mm
2
cable (minimum).
6.1.1 Controller Connections - These are made via M8 terminals depending on unit
configuration, as follows:
All Controllers:
B+ Connected to Battery positive via the fuse and line contactor (if fitted).
B- Connected to Battery negative.
Traction Controllers, not Dual Motor:
A1 Connected to the normally closed contacts of the direction contactors
F1 Connected to the negative end of the Traction motor field.
S1 Connected to the positive end of the Traction motor field.
Pump Controllers:
F2 Connected to the negative side of the Pump motor.
S2 Connected to the positive side of the Pump motor.
Traction Controllers, Dual Motor Non-Proportional:
D1 Connected to the positive end of the Right Traction Motor Field.
D2 Connected to the positive end of the Left Traction Motor Field.
Traction Controllers, Dual Motor Proportional:
A2 As per A1 for second Traction Motor.
F2 As per F1 for second Traction Motor.
S2 As per S1 for second Traction Motor.
6.1.2 Contactor Connections
Line (Optional) + terminal to Fuse, other terminal to the B+ terminal of
the controller and the regen contactor if fitted.
Direction See power wiring diagrams (figs 2,3,5,6,7)
Regen (Optional) Common to Direction contactor, normally open contact
to controller B+ terminal, normally closed contact to
controller B- terminal.
Power Steer (Optional) + terminal to battery positive via fuse, other terminal to
the power steer motor.
Bypass (Optional) + terminal to F1 terminal of controller, other terminal to
Battery Negative.
Field Weakening (Optional) + terminal via resistor to S1 terminal of controller, other
terminal to F1 terminal of controller.
Pump Bypass (Optional) + terminal to F2 terminal of controller, other terminal to
B-ve.
Pump F.Weakening + terminal to top of Field and other terminal to F2.
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