Danfoss VLT Series Programming Manual page 48

Servo Drive Operation
Absolute master position, absolute slave position
2 2
0
Change CAM imm=0
Active
CAM
InSync
End of
pro le
Illustration 2.49 Change CAM immediately = 0.
Do not use blending distance
0
Change CAM imm=0
Active
CAM
InSync
End of
Illustration 2.50 Change CAM immediately = 0.
Use blending distance; Blending distance is not long enough
to reach the next CAM.
In Illustration 2.50, the blending distance is not long
enough to reach the 1
axis therefore automatically increases the blending up to
st
the 1 point of the next CAM.
46
Blending
Master absolute
Slave absolute
1 2
Use blend dist=0
CAM 2 CAM 3
Blending
blend
dist
Master absolute
Slave absolute
Cyclic
2
1
Use blend dist=1
CAM 2 CAM 3
st
data point of the next CAM. The
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®
VLT Integrated Servo Drive ISD
Guide value
cycle
Active
CAM
InSync
End of
Illustration 2.51 Change CAM immediately = 0.
Use blending distance; Blending distance is long enough to
cover the gap to the next CAM.
0
Guide value
cycle
Active
CAM
InSync
End of
Pro le
CAM
Error
Illustration 2.52 The end of the blend distance is not on the
new CAM in the same guide value cycle.
This situation leads to a rejection of the transition. The servo
drive acts as if the command has never been issued.
®
510 System
Blending
Master absolute
Slave absolute
Cyclic
blend
dist
0
1
Change CAM imm=0
Use blend dist=1
CAM 2 CAM 3
Master absolute
Slave absolute
Non-Cyclic
blend
dist
1
Guide value
Change CAM imm=0
cycle
Use blend dist=1
CAM 2
2
Guide value
cycle
MG36D102