Safety Inputs And Test Pulse Outputs; Safety Outputs - schmersal SFB-PN Series Manual

2.1.2

Safety inputs and test pulse outputs

2.1.3

Safety outputs

The SFB-PN-IRT-8M12-IOP has two safety inputs and two test pulse outputs for
the supply of dry contacts at each of the 8 device ports X0 - X7.
These safety inputs are usable for:
1 channel safety switches (1oo1) with dry NC contacts
−
Cross fault monitoring to all other safety inputs of the fieldbox
−
Configurable debounce filter / stable time filter for the input signal
−
Supply contact by test pulse outputs with test pulse duration 1 ms
and test pulse interval 500 ms
2 channel safety switches (1oo2) with dry NC contacts
−
Cross fault monitoring to all other safety inputs of the fieldbox
−
Configurable debounce filter / stable time filter for the input signals
−
Supply contacts by test pulse outputs with test pulse duration 1 ms
and test pulse interval 500 ms
2 channel Safety switches (1oo2) with 24 V-PNP solid state outputs (OSSDs)
−
No cross fault monitoring of the device connection cables by the
fieldbox
−
Configurable debounce filter / stable time filter for the input signals
−
Supply safety inputs of the safety switchgear with 24 VDC without test
pulses
−
When the OSSD is switched on, negative test pulses with a length of
10 µs to 1 ms and an interval of 20 ms to 120 s must be sent.
For safety switchgear with electronic OSSDs, cross fault detection of the device
connection cable must be carried out by the safety switchgear!
The SFB-PN-IRT-8M12-IOP has a safety digital output at each of the 8 device
ports X0 - X7 for controlling loads up to 0.8 A and a configurable safety signal
output for controlling 2-channel safety inputs up to 15 mA.
Safety output via 1 wire (digital output DO)
−
Safety digital output (PP switching) up to PL d, for controlling
e.g. solenoids in interlocks
−
Tested output, short-circuit and overload protected
2 Product description
WARNING
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