Festo SFC-LAC CO Series, Manual

Page: 37 / 328

1. System summary
1−17
Festo P.BE−SFC−LAC−CO−EN en 0708NH
Calculating specification
Point Calculating specification
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
Algebraic sign All points and offsets have an algebraic sign:
Value Direction
+ Positive values face from the basis point in the direction
of the extended end position.
Negative values face from the basis point in the
direction of the retracted end position.
Measuring units All parameters are saved in the SFC−LAC internally in
millimetres (mm, mm/s, mm/s
2
...).
Various measuring units can be set in the FCT, e.g. metric
units (mm, mm/s, mm/s
2
) or imperial units (inch, inch/s,
inch/s
2
).
The CI interface, on the other hand, works with increments.