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Traction control circuit - sevcon power module -4, Traction control circuit - zapi power module -4, 24v line contactor power module – JLG 3246ES Service Manual User Manual

Page 40: Left field winding right field winding

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SECTION 3 - CHASSIS & SCISSOR ARMS

3-4

– JLG Lift –

3121166

Figure 3-3. Traction Control Circuit - Sevcon Power Module

-B

+B

Right

Armature

24V

Line Contactor

Power Module

M1

M2

F1

F2

Left

Armature

Left Field Winding

Right Field Winding

Shunt

Armature

Switch

Field

Switches

1

2

4

3

Figure 3-4. Traction Control Circuit - ZAPI Power Module

+

24V

+

+

+

Line Contactor

Right Field Winding

Left Field Winding

Power Module

Left

Armature

Right

Armature

+

+

BF1

BF2

B

+B

T

F1

F2

Field

MOSFETS

Armature

MOSFET

Shunt