Service Training
Section 6
Page 36
6.3.5 Speed reduction on turning
The truck is equipped with a safety system, the controller reduces the translation speed during turns. The
electric steering calculates the steering angle according to the position of the set value potentiometer in
the form of a voltage in 3X1:17.
The LAC receives this signal in terminal 1X1 : 61, then, according to the pre-regulated values, it reduces
the truck speed during turns.
The traction speed reduction is controlled when the set value reaches or exceeds a steering angle AC+hAC,
on either side of the midpoint of the steering. The speed limitation is suppressed when the set value
returns to a position less than or equal to the angle AC. Beyond 45°, the translation speed is automatically
reduced regardless of the control values. The AC and hAC points can be controlled with the PathFinder
software. The signal in 1X1:61 is a percentage of the supply voltage stabilised from the set value
potentiometer.
0°
AC
AC+hAC
+45°
80% of 8.2V
Signal In 1X1: 61
0°
AC
AC+hAC
+45°
Signal In 1X1:61
Normal speed
Reduced speed
Normal speed
Reduced speed
80% of 8.2V
Movement of the handlebar/tiller from 0° to 45°
Movement of the handlebar/tiller from 45° to 0°
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