Lenord, Bauer GEL 8310, Руководство по эксплуатации, Страница: 86 / 226

F
UNCTIONAL
D
ESCRIPTIONS
4.15 Coordinates offset
4-47
8310/8610-8
☛
Enter the desired absolute or relative zero coordinate for the
x axis (display
A).
The input features for the coordinates offset correspond to the program flow
instructions (refer to section 4.14, General features).
Positioning example for an unit consisting of two axes:
sentence 1:
Pos. A 1
Pos. A 2
100
200
coordinates = machine coordinates
sentence 2:
C.abs A1
C.abs A2
200
300
coordinates offset absolute to the
machine zero point
sentence 3:
Pos. A 1
Pos. A 2
0
0 coordinates = work piece coordi-
nates
sentence 4:
Pos. A 1
Pos. A 2
300
100
sentence 5:
... ...
100 200 300 400 500
(0)
axis 1
axis 2
400
300
(0)
200
100
0
axis 1
axis 2
100 200 300
100
P
1
(100, 200)
(-100, -100)
P
3
(300, 100)
0
'
P
2
(0, 0)
E180039C
•
With the first starting signal
position P
1
is moved to
.
•
With the second starting signal,
the actual values of axis 1 and
axis 2 are set to -100 (coordinates
offset) and then with an internal
start, the position P
2
is moved to
(with reference to the machine
zero point the coordinates would
be (200, 300)).
•
Position P
3
is moved to with the
third starting signal.
The machine zero point is reactivated with the next reset signal, i.e. the
displayed actual values are related to this. (If, in the example above, the
Controller is reset in P
3
then the actual value of axis 1 is set to 500 and the one
of axis 2 to 400.)
CAUTION
1. Programmed positions of software limit switches (storage
locations 3/71…73) are related to the actual positions in the
current coordinate system. In an unfavourable case, with
coordinates offset monitoring can thus become ineffective!
2. When using absolute encoders, the end of the counting range
can be reached by one or several unfavourable coordinates
offsets. Thus, a prohibited actual value jump can appear
during positioning.