This preview shows page 1. Sign up to view the full content.
Unformatted text preview: e which is not too small. In addition, a greater nominal
switching distance facilitates the adjustment of the proximity sensor on the
In the case of specified built-in diameters, the greatest switching distance is
achieved if a non-flush fitting type of proximity sensor is used. In this case, however,
care must be taken to ensure that the active zone of the proximity sensor is free of
metal. © Festo Didactic GmbH & Co. KG • FP 1110 257 d d F2 16. Solutions d a) F3 d F2 F1 b)
a) Flush mounted
b) Non-flush mounted Diameter of proximity sensor (d) Nomial switching distance (sn) Free zone 1 = 3 x sn (F1) Free zone 2 ≥ 3 x sn (F2) Free zone 3 ≥ 2 x sn (F3) Fig. 16.3.2: Installation specifications for proximity sensors Hysteresis is the term used to describe the difference between the switch-on point
and the switch-off point of a proximity sensor. This is essential to guarantee the safe
switching of the proximity sensor. Should the two switching points coincid...
View Full Document
- Spring '12