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4. Concepts of the cam disc
24
Festo.P.BE-CMMP-CAM-SW-EN en 1105a
4.6.2
Modulo positioning with virtual master
At the start of a positioning record from the positioning record table, the virtual master
simulates travel to the target position using the values for speed and acceleration
parametrised in the positioning record. The connected axis travels the path according to
the active cam disc.
Note
The time for virtual execution of a positioning record is exactly the
same as if no cam disc were active.
The
direction of travel
through the curve is determined by the settings on the “Cam Disc”
page, tab “Master”: shortest distance, direction always positive/negative or direction from
position set.
Warning
In the case of the modulo setting “shortest distance”:
Do not specify a target position outside the defined modulo range!
In the case of target positions outside the modulo range,
positioning is executed as a normal, absolute positioning job.
The
upper range limit
does
not
belong to the valid range. In this
case, enter the lower range limit as target position.