Danfoss VLT Series Programming Manual page 54

Servo Drive Operation
2 2
0
Change CAM imm=0
Use blend dist=1
Active
CAM
InSync
End of
Illustration 2.74 Change CAM immediately = 0.
Use blending distance.
0
Change CAM imm=1
Use blend dist=1
Active
CAM 2
CAM
InSync
End of
pro le
Illustration 2.75 Change CAM immediately = 1.
Use blending distance; Distance is longer than the new CAM.
52
VLT
Master relative
Master relative
Slave relative
Blending
blend dist
1
CAM 2 CAM 3
Master relative
Master
Slave relative
relative
Cyclic
Blending
blend
dist
1
CAM 3
Danfoss A/S © 01/2017 All rights reserved.
®
Integrated Servo Drive ISD
0
2
Guide value
cycle
Active
CAM
InSync
End of
pro le
Illustration 2.76 Change CAM immediately = 1.
Do not use blending distance. Jumps in velocity may occur.
2.4.5.5 Advanced CAM
The advanced CAM is represented by nodes and segments.
The available node types are described in Table 2.13. The
available segment types are described in Table 2.14.
The CAM configuration options Slave absolute and Slave
relative are not available for advanced CAM. In advanced
CAM, the behavior of an absolute or relative movement is
2
Guide value
built in to the different segment types.
cycle
A differentiation between full and partial CAM is not
applicable for advanced CAM. An advanced CAM can
contain paths that form a circle, and alternative paths (see
Illustration 2.78), which end at nodes without further
following segment.
An advanced CAM profile can consist of several nodes,
segments, actions, and exit conditions. The size of a CAM
profile highly depends on the number of elements and, for
example, on the segment types (some require more and
others require fewer parameters).
Name
GuideNode
EventNode
Table 2.13 Available Node Types
All nodes are non-signaling nodes. The axis does not
automatically signal if it passes a node. However, for
example for debugging purposes, it is possible to enable
this signaling for selected nodes.
GuidePoly
MoveDistance-
Segment
®
510 System
Jump in Master relative
velocity possible! Slave relative
Slave
relative
Master relative
1
Change CAM imm=1
Use blend dist=0
CAM 2 CAM 3
Description
Connects GuideSegments
Connects EventSegments
GuideSegment
th
Polynomial of 5 order based on guide value.
GuideSegment
Uses run-time calculated polynomial of 5
order; the angle is sent over fieldbus at run-
time.
2
Guide value
cycle
th
MG36D102