Pilz PMCprotego S1--2, Руководство по эксплуатации

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Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­03
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– Current is supplied to the load
– Safety function activated
Supply voltage
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24 VDC connection to supply the safety card's digital outputs
4.2.2.2 Dual­pole outputs
The safety card has a safe dual­pole output to control a mechanical brake:
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SBC+/SBC­
Signals at the output
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“0” signal (0 V) at the output (SBC+/SBC­):
– Output is high impedance
– No current to the load
– Safety function is activated, brake closed
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“1” signal (+24 V) at the output (SBC+/SBC­):
– Output is low impedance
– Current is supplied to the load
– Safety function is not activated, brake open
NOTICE
Only a brake which operates in accordance with the failsafe principle may
be connected.
Supply voltage
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24 VDC connection to supply the safety card's digital outputs
4.2.2.3 Output test
The outputs are tested regularly:
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Outputs that are switched on are checked via regular off tests.
– Test pulses for outputs that are switched on: see technical details
– Outputs that are switched on are switched off for the duration of the test pulse.
– The load must not switch off because of the test.
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Outputs that are switched off are checked via regular on tests.
– Test pulses for outputs that are switched off: see technical details
– Outputs that are switched off are switched on for the duration of the test pulse.
– The load must not switch on because of the test.
Testing for shorts
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A test is regularly carried out to check for shorts between the outputs.