Festo Кабели и принадлежности User Manual
Page 405
A. Notes on installing the pneumatic components
A−13
Festo P.BE−SPC200−EN en 0901d
Installation instructions for standard cylinder DNC−...
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Any mounting position is permitted (horizontal, vertical or
diagonal).
·
Note that in conjunction with the SPC200, the complete
stroke of the drive must not be used.
Permitted work stroke = stroke length minus stroke
reduction
On each side of the drive positioning must
not take place in
the range of the stroke reduction (see also chapter 3.4).
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The best possible positioning behaviour can be
achieved if you use only 80 % of the stroke length of
the drive, symmetrically to the two end positions.
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If demands placed on the positioning behaviour are
only slight, observe at least the following stroke reĆ
ductions in both end positions:
Piston j [mm]
32
40
50
63
80
Stroke reductionper end position
with pneumatic cushioning [mm]
10
10
15
15
15
Stroke reduction per end position
with PPV cushioning [mm]
25
25
30
30
35
·
Drives with adjustable end position cushioning (PPV): In
order to use the end position cushioning as minimum
stop protection, tighten completely the adjusting screws
for the internal end position cushioning.
·
Recommendation: Limit the positioning range by shock
absorbers, also in the case of a cylinder with adjustable
cushioning. In this way you can avoid damage in the
event of operating and system faults.