Service Training
Section 6
Page 40
6.3.8 LES OFF mode
To prevent premature wear of the steering motor and a wasted current consumption during the phases
when the truck is not used, the LES is put in off mode. It disconnects the power stage but verifies the control
card input information to reactivate the motor if necessary.
This power reset information comes from:
- either a movement of the set value potentiometer (variation of the two links in inputs 3X1:3/4)
- or detection of a truck traction movement by the speed sensor signals in inputs 3X1:5/14)
- or a major movement of the motor wheel corresponding to a variation of the two links of the real value
potentiometer in inputs 3X1: 13/22.
If all the reset conditions are met, if there are no more steering responses after a timeout of 30 seconds.
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