HEIDENHAIN ND 281 B v.1 - Manual (Page 46)

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Switching signals
As soon as the trigger points defined in parameters are
reached, the corresponding outputs (pins 15, 16) are
activated. You can set up to two trigger points. The switching
point “zero” has a separate output (see “Zero crossover”).
Signals for sorting and tolerance checking
If the sorting limits defined in parameters are exceeded, the
corresponding outputs (pins 17, 18) are activated.
Signals Operating parameters Pin
Switching signals P62, switching limit 1 15
P63, switching limit 2 16
Sorting signals P18, lower sorting limit 17
P19, upper sorting limit 18 Weg
5
t
t
t
v
t
v
Pin 15
(A1)
Time curve of signal at pin 15 for trigger limit (A1) = 5 mm , t
d
≤
30 ms
Zero crossover
The display value “zero” activates the corresponding output
(pin 14). Minimum signal duration is 180 ms.
Path
Output
Switching point
Measured value < lower sorting limit
Measured value > Upper
sorting limit
Path
Lower limit Upper limit
Switching Inputs EXT (X41)
Path
t
d
t
d