Danfoss VLT5000 SyncPos Operating Instructions Manual page 42

Activate the diagram of the →
and move the two newly inserted fixpoints with
the help of the mouse until you get a uniform
velocity:
l
Enter the → "CYCLES/MIN MASTER" = 60 in
9.
the index card → "CURVE INFO". This is the
(maximum) number of cardboard boxes that
are processed per minute.
10. Verify whether the acceleration of the slave is
within the limit. For this purpose, you must
activate the illustration of the
→
"ACCELERATION" and of the
→
"ACC. LIMIT".
11. In order to load the curve into your control
system, you must first save the file as a cnf file
"FILE" → "SAVE AS ..." .
You will see the name of the curve and the
number of array elements in the title bar. You
will need the latter for the DIM instruction
during programming.
How to load the curve into the VLT
You can load the cnf file with the modified para-
meters and the – automatically generated – curve
arrays into the VLT by means of "PARAMETERS"
→ "RESTORE FROM FILE".
MG.10.J8.02 – VLT is a registered Danfoss trade mark
Programmable SyncPos motion controller
"VELOCITY" How to integrate the curve into the control program
Since the curve is stored internally as an array, the
DIM instruction must appear first in your program:
DIM stamping[92]
// Number of elements from the title bar
// of the CAM-Editor
H O M E
// Slave axis performs a home run
// (switch for zero position on top)
// Afterwards, the slave will be in the
// zero position (0 degrees)
// (Omitted if an absolute encoder is used)
SETCURVE stamping
// Set stamping curve
// Assumption: A box is positioned at the
// processing point with its front edge
// and the master stands idle
DEFMCPOS 1000
POSA CURVEPOS
// Bring slave to the curve position that
// corresponds to the master position
SYNCC 0
// Change into and remain in CAM-Mode
SYNCCSTART 0
// Engage roller immediately with the set
// maximum velocity
// This does not cause any movement since
// the master is idle and in the correct position
// Now the master can be started
start:
// Empty main loop so that program will
// not be terminated
// Additional processing could take place here
goto start
// 1000 corresponds to this
// position (front edge of box)
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