Pilz PSENvip RL D P Manuale Utente Scaricare il pdf (Pagina 43)

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]

4-15

4.4 Description of the units

4 Function description

 The load must not switch on because of the test.

Testing for shorts

 A test is regularly carried out to check for shorts between the outputs.

Fig. 4-8: Test pulses

Key:

 t

: Pulse length of on test (40 μs)

 t

: Repetition length of on test (100 μs ... 3 ms)

 t

: Cycle time of on test (30 μs ... 5 min)

][Funktionsbeschreibung_BA_Zusatz Einschalttest

WARNING!

When wiring an output with capacitance it is essential to note

the pulse duration, repetition period and scan time of the power-

up test, otherwise the load may switch on unintentionally.

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Pilz PSENvip RL D P Manuale Utente Pagina 43