Festo Контроллеры двигателя SFC-LAC User Manual

Page 35

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1. System overview

1−13

Festo GDCP−SFC−LACI−CO−EN en 0812NH

Calculation rules

Point

Calculation rule

Axis zero point

AZ

= REF

+ a

Project zero point

PZ

= AZ

+ d

= REF

+ a + d

Lower software end position

LSE

= AZ

+ b

= REF

+ a + b

Upper software end position

USE

= AZ

+ c

= REF

+ a + c

Target/actual position

TP,
AP

= PZ

+ g

= AZ

+ d + g

= REF

+ a + d + g

Prefix

All points and offsets have a sign prefix:

Value

Direction

+

Positive values face from the basis point in the direction
of the extended end position.

Ċ

Negative values face from the basis point in the direcĆ
tion of the retracted end position.

Units of measurement

Different units of measurement can be set in the FCT,
e.g. metric (mm, mm/s, mm/s

2

) or imperial (inch, inch/s,

inch/s

2

).

The CI interface, on the other hand, works with increments.
For converting increments: see appendix A.3.

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