Festo Контроллеры двигателя SFC-LAC - Manual (Page 35)

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.