Service Training
Section 6
Page 10
6.1.5 Traction and hydraulic controller - LAC / 1A1
6.1.5.1 Description
The 1A1 controller, the LAC (Linde Asynchronous Control), comprises of a control card LTC (Linde Truck Control)
and a power stage for the traction and the hydraulics.
The transistors' control is performed by an electronic circuit called DRIVER, forming the interface between the power
and control parts.
The numeric control module LTC uses two microprocessors (Traction and Hydraulic) that are auto-controlled. If a fault
occurs, it is detected instantly and the control system puts the truck in safety, which can be a reduction in performance
or the halting of a controller, depending on the type of fault. The control module is equipped with a connector 1X1 of
70 pins.
1
2
3 4 5 6
1X1
µP Main for TRACTION
AND
Safety for RAISING
µP Main for RAISING
AND
Safety for TRACTION
Control circuit connector 1X1
Traction
hydraulic
Traction and hydraulic
unused
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