6 positioning profile parameters, Positioning profile parameters, Commissioning – Lenze ECSCPxxx User Manual
Page 97

Commissioning
Basic terms of positioning
Positioning profile parameters
l
97
EDBCSXP064 EN 8.0
6.1.6
Positioning profile parameters
6.1.6.1
Target position (C3100/x)
The effect of this parameter depends on the type of the positioning carried out. Three basic
types of positioning are differentiated:
ƒ
Absolute positioning
– The value "target position" indicates an unequivocal absolute position in the
measuring system.
– The zero position of the measuring system must be known as reference point
(see homing,
^ 101).
– Application: axes with a limited traversing range (e. g. palletizers)
0-Position
10
20
30
40
50
60
70
80
90
100
10
30
80
P1
P2
P3
ECSXA407
Fig. 6−4
Absolute positioning
ƒ
Relative positioning in the continuous measuring system
– The "target position" value indicates the distance to be traversed with regard to
the current position (incremental dimension).
– The zero position of the measuring system does not need to be known.
– The state "Home position available" (Stat1.HomePosAvailable is reset).
– Application: roll feed
10
20
50
P3
P2
P1
ECSXA436
Fig. 6−5
Relative positioning in continuous measuring system
ƒ
Relative positioning with absolute reference
– The "target position" value indicates the distance to be traversed with regard to
the current position.
– The zero position of the measuring system has to be known.
– Application: incremental positioning for axes with a limited traversing range
0-Position
10
20
30
40
50
60
70
80
90
100
10
20
50
P3
P2
P1
ECSXA408
Fig. 6−6
Relative positioning with absolute reference