Danfoss VLT5000 SyncPos Operating Instructions Manual page 41

Enter these values in the index card →
"SYNCHRONIZATION" (the selected units
should always be whole numbers):
Syncfactor Master [49] = 2048
Syncfactor Slave [50] = 55
4. Enter the gearing factor of the slave in UU
units:
Gearing factor = 5/1
Encoder resolution (incremental encoder) =
500
One revolution of the roller is 360 degrees. We
are going to work with a resolution of
1/10 degrees. This means that we are dividing
one revolution of the roller into 3600 work units:
Scaling factor = 3600
Enter these whole number values in the index
card → "ENCODER":
User factor numerator [23] = 25
User factor denominator [26] = 9
5. Determine a whole number factor for the
intervals in the index card → "CURVE DATA"
so that the fixpoints are on the interpolation
points.
A complete cycle length of the master is
400 mm; this corresponds to 4000 MU.
The → "NUMBER OF INTERVALS" = 40
results in a reasonable interval time of 25 ms.
40
Programmable SyncPos motion controller
Define → "FIX POINTS" for the conveyor belt
6.
(master) and the roller (slave) and the point
type „1" for curve points. Click on the →
"RECALC" button in order to depict the curve.
The function → "SNAP ON GRID" should be
activated.
7. Master and slave must run synchronously with
the same velocity between the position 1500
and 2500. This requires a straight line which is
determined by two tangent points.
Enter „2" for tangent point in the column →
"TYPE" for the two positions in the index card
→ "FIX POINTS".
Alternatively, you can move the cursor to the
fixpoint 2500, click on the right mouse button
and select → "CHANGE TYPE" in the subse-
quent pop-up menu. Since two tangent points
are always required, the previous one (left) will
also be changed at the same time.
8. The curve will not be shown because the cal-
culation of a spline always requires three
points. In this case, you will therefore need an
additional fixpoint before and after the tangent
(straight section).
Y Y Y Y Y ou can enter points in the table ou can enter points in the table ou can enter points in the table: : : : : Click on ou can enter points in the table ou can enter points in the table
the row of the second fixpoints with the right
mouse button and select → "INSERT
FIXPOINT" in the pop-up menu that follows.
The point will be inserted between this point
and the previous one (left).
Alternatively, you can enter points in the dia- Alternatively, you can enter points in the dia- Alternatively, you can enter points in the dia- Alternatively, you can enter points in the dia- Alternatively, you can enter points in the dia-
gram: Move the cursor to the (now) fifth point gram gram
gram gram
until the hand icon appears. Click on the right
mouse button and select → "INSERT
FIXPOINT" in the pop-up menu.
MG. 1 0.J8.02 – VLT is a registered Danfoss trade mark