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User's Manual ND 281, NDP 281 - heidenhain - DR. JOHANNES ...

User's Manual ND 281, NDP 281 - heidenhain - DR. JOHANNES ...

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Switching Inputs EXT (X41)<br />

38<br />

Switching signals<br />

As soon as the trigger points defined in parameters are<br />

reached, the corresponding outputs (pins 15,16) are activated.<br />

You can set up to two trigger points. The switching point<br />

“zero” has a separate output (see “Zero crossover”).<br />

Signals for sorting and tolerance checking<br />

If the sorting limits defined in parameters are exceeded, the<br />

corresponding outputs (pins 17, 18) are activated.<br />

Signals Operating parameters Pin<br />

Switching signals P62, switching limit 1<br />

15 P63, switching limit 2<br />

16<br />

Sorting signals P18, lower sorting limit 17<br />

P19, upper sorting limit 18<br />

Zero crossover<br />

The display value “zero” activates the corresponding output<br />

(pin 14). Minimum signal duration is 180 ms.<br />

Weg Path<br />

5<br />

Pin 15<br />

(A1)<br />

Output<br />

Switching point<br />

Measured value < Lower sorting limit<br />

Measured value > Upper<br />

sorting limit<br />

Lower limit Upper limit<br />

t dv<br />

t dv<br />

Path<br />

Path<br />

Time curve of a signal at pin 15 for trigger limit (A1) = 5 mm , t d≤ 22 ms<br />

t<br />

t

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