Soft-Stop - Danfoss PVED-CLS User Manual

Controller for electrohydraulic steering
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10.7 SOFT-STOP

The soft-stop function is mirrored to both sides (left- and right-end stop). The function can limit the allowed maximum
flow delivered to the steering cylinders in proportion to the relative wheel angle. The functions control algorithm will
implement a linear interpolation between two points, Point A and Point B, specified by the operator.
Point A (1000-P3562, 1000)
Point B (1000-P3566, P3564)
1100
1000
900
800
700
600
500
400
300
200
100
0
0
100
The range is from 0 to 1000 [IR] for P3562, P3564 and P3566 (i.e. relative wheel angle and soft-stop flow limit,
respectively).
The values recommended by Danfoss are P3562 set to 400, and P3564 and P3566 set to 0.
Important
For absolute wheel angles lower than the one specified at Point A maximum flow is available.
Important
If soft-stops are not needed, the integrator can eliminate the functionality by setting P3564 to 1000.
STW - Soft-stop
200
300
400
500
Point A
600
700
800
|Wheel angle[IR]|
Figure 34
Point B
900
1000
1100
1200
1300

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