Pilz PSS67 F 16DI SB-T Manual do Utilizador descarregar pdf (Página 33)

Operating Manual: PSS67 F 16DI SB-T 7-7

Example: Dual-channel input devices, without test pulses

Features:

• This type of connection is mainly used for signal inputs with frequent

operation.

• Depending on the application area and its respective regulations, this

connection diagram is suitable for input devices with frequent operation

and diverse channels, up to Category 4 in accordance with EN 954-1,

provided the functionality of both input device channels is monitored in

the user program via a feasibility check.

• Depending on the application area and its respective regulations, this

connection diagram is suitable for input devices with infrequent

operation up to Category 3 in accordance with EN 954-1, provided the

functionality of both input device channels is monitored in the user

program via a feasibility check.

• If you are using input devices with different (diverse) channels, adjacent

inputs may be used. Short circuits will be detected in the user program

via the feasibility check (see example in the PSS-Range Programming

Manual).

CAUTION!

A short circuit in the cable between the input device and input with the

24 VDC line or between adjacent input devices will not be detected.

Depending on the type of input device connected, this could create a risk to

both personnel and machinery (e.g. E-STOP). Always ensure that the unit

is suitably wired to eliminate the risk of short circuits.

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Pilz PSS67 F 16DI SB-T Manual do Utilizador Página 33