chapter 5000
page 16
1,2 - 2,0 t A.C.
SERVICE MANUAL
Electric
036-0410-07
STEERING SYSTEM
3 WHEELS
When the potentiometer reaches approximately
70° the traction logic unit controls the motor in
order to stop one motor completely according
to the direction. In this case the truck turns
around point A. If the stroke of the potentiometer
increases the motor that was stopped starts
running in the opposite direction and the truck
starts turning around point B.
3 WHEELS
4 WHEELS
LEFT
RIGHT
STEERING
POTENTIOMETER
4 WHEELS
When the potentiometer reaches the maximum
stroke the traction logic unit controls the motor
in order to stop one motor completely according
to the direction. In this case the truck turns
around point A.
Transducer steering-wheel with potentiometer
The potentiometer has the following characteristics:
- Resistance 2,2 Kohm.
- The potentiometer supply is 12 V (5 V on the console). The
potentiometer should be installed so that in the "zero position"
(straightened wheels) the output voltage is 2,5 V. The
potentiometer has to be fitted so that when the trolley turns
clockwise the voltage decreases.
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