Danfoss VLT Series Programming Manual page 50

Servo Drive Operation
Absolute master position, relative slave position
Change CAM immediately = 0:
2 2 The currently running CAM is processed until the end. The
1 st slave position of the new CAM is adjusted so that it
matches the slave position of the end point of the old
CAM profile.
Change CAM immediately = 1:
The currently running CAM is aborted immediately. The
slave position of the new CAM at the current guide value
is adjusted so that it matches the current slave position. If
the new CAM has not defined at this current guide value,
the slave value of the 1
so that it matches the current slave position.
The behavior when switching to non-cyclic CAM profiles is
the same as detailed in section Absolute master position,
absolute slave position in chapter 2.4.5.4 Basic CAM. Options
slave absolute and slave relative have no influence in these
cases and are therefore not mentioned again in this
section.
0
Change CAM imm=0
Active
CAM
InSync
End of
Illustration 2.58 Transition with absolute master and relative
slave positioning;
No blending distance used.
48
st point of the new CAM is adjusted
Blending
1
Use blend dist=0
CAM 2 CAM 3
Danfoss A/S © 01/2017 All rights reserved.
®
VLT Integrated Servo Drive ISD
Active
CAM
InSync
End of
Illustration 2.59 Change CAM immediately = 0.
Use blending distance; Blending distance is not long enough
to reach the next CAM.
Master absolute
Slave relative
2
Guide value
cycle
Active
CAM
InSync
End of
Illustration 2.60 Change CAM immediately = 0.
Use blending distance; Blending distance is long enough to
cover the gap to the next CAM.
®
510 System
Blending
blend
dist
0 1
Change CAM imm=0
Use blend dist=1
CAM 2 CAM 3
blend
Blending dist
Slave
relative
0 1
Change CAM imm=0
Use blend dist=1
CAM 2 CAM 1
Master absolute
Slave relative
Cyclic
2
Guide value
cycle
Master absolute
Slave relative
Cyclic
2
Guide value
cycle
MG36D102