PNOZ X10.11P
Operating Manual PNOZ X10.11P
20820-EN-13
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Function Description
The safety relay PNOZ X10.11P provides a safety-oriented interruption of a safety circuit.
When supply voltage is supplied the "POWER" LED is lit. The unit is ready for operation
when the feedback loop Y1-Y2 and the start circuit S12-S34 are closed.
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Input circuit is closed (e.g. E-STOP pushbutton not operated):
– LEDs "CH.1 IN", "CH.2 IN" and "K3" go out.
– LEDs "K1" and "K2" light as soon as relays K1 and K2 are in operating position.
– LED "K3" goes out as soon as relay K3 is in rest position.
– Safety contacts 13-14, 23-24, 33-34, 43-44, 53-54 and 63-64 are closed, auxiliary
contacts 71-72, 81-82, 91-92 and 01-02 are opened. The unit is active.
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Input circuit is opened (e.g. E-STOP pushbutton operated):
– The LEDs "CH.1 IN" and "CH.2 IN" go out.
– LEDs "K1" and "K2" go out as soon as relays K1 and K2 are in rest position.
– Safety contacts 13-14, 23-24, 33-34, 43-44, 53-54 and 63-64 are opened redund-
antly, auxiliary contacts 71-72, 81-82, 91-92 and 01-02 are closed.
Operating modes
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Single-channel operation: No redundancy in the input circuit, earth faults in the start and
input circuit are detected.
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Dual-channel operation with detection of shorts across contacts: Redundant input circuit,
PNOZ X10.11P detects
– earth faults in the start and input circuit,
– short circuits in the input circuit,
– shorts across contacts in the input circuit.
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Dual-channel operation without detection of shorts across contacts: Redundant input cir-
cuit, detects PNOZ X10.11P
– earth faults in the start and input circuit,
– short circuits in the input circuit.
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Automatic start: Unit is active once the input circuit has been closed.
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Manual start: Unit is active once the input circuit and the start circuit are closed.
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Monitored start: Unit is active once
– the input circuit is closed and then the start circuit is closed and opened again.
– the start circuit is closed and then opened again once the input circuit is closed.
The LED "K3" lights when the start circuit is closed and goes out when the start circuit is
opened.
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Increase in the number of available contacts by connecting contact expandsion modules
or external contactors/relays.
