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General Function Description
Example 1
Programmable controller
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Amplifying unit
Example 1: Automatic Milling Operation with
1P
241
Via the encoder, flange attached to the shaft, the
1P
241 receives the “actual position” of the car-
riage and thus accordingly the work piece position.
The end positions of the milling head (respective work piece dimensions) are specified as
set-
points.
Via a cam, positioned immediately in front of the work piece edge, a coolant pump can be
activated.
When the end position is reached, a quick and precise cutoff of the spindle motor can be effected
via an interrupt to the programmable controller.
For simplification, example 1 is limited to one axis.
1P
241 Equipment Manual
@
Siemens AG 1989. Order No: 6ES5
998-0KD21
1 – 15
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