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# To do this assume that the switching time of the

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Unformatted text preview: ly suitable for purely pneumatic solutions, i.e. if compressed air is the only source of auxiliary energy. 46 © Festo Didactic GmbH & Co. KG • FP 1110 3. Magnetic proximity sensors 3.4 Exercises Exercise 3.1 Maximum passing speed Calculate the maximum passing speed of a cylinder piston, the position of which is to be sensed by means of a reed contact. To do this, assume that the switching time of the proximity sensor used is 2 ms and take the response travel from table 3.4.1. Calculate the value for a Festo cylinder, type DNNZ with a diameter of 32 mm as an example. What is the change in maximum speed if, for instance, a valve is to be switched with a switching time of 15 ms? Piston diameter [mm] Type Hysteresis Hmax [mm] Response travel Smin [mm] SME SME SMP SMP 8 ESN, DSN 2 1.5 7 9 10 ESN, DSN 2 1.5 5 9 12 ESN, DSN 2 2 8 11 16 ESN, DSN 2 2 6 9 20 ESN, DSN 2 2.5 7 9 1.5 2 6 17 DGS 2 1.5 7 10 ESW, DSW 2 1.5 10 12 DN, DNZ 2.5 4 7 15 DNNZ 2.5 4 7 15 2 2 9.5 12 DN, DNZ 2.5 4.5 8 15 DNNZ 2.5 4.5 8 15 ESW, DSW 2 2 10.5 12 DN, DNZ 3 5 8 17 DNNZ 3 5 8 17 DGS 25 32 40 50 ESN, DSN ESW, DSW Table 3.4.1: Hysteresis a...
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