PNOZ X13
Operating Manual PNOZ X13
20187-EN-07
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Function Description
The safety relay PNOZ X13 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
start circuit S13-S14 is closed.
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Input circuit is closed (e.g. E-STOP pushbutton not operated):
– The "START" LED is lit.
– The LEDs "CH.1" and "CH.2" are lit.
– Safety contacts 13-14, 23-24, 33-34, 43-44 and 53-54 are closed, auxiliary contact
61-62 is opened, the unit is active.
– The "START" LED goes out.
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Input circuit is opened (e.g. E-STOP pushbutton operated):
– Safety contacts 13-14, 23-24, 33-34, 43-44 and 53-54 are opened redundantly, auxili-
ary contact 61-62 is closed.
– The LEDs "CH.1" and "CH.2" go out.
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 X13 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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Automatic start: Unit is active once the input circuit has been closed.
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Monitored start: Unit is active once the input circuit is closed and once the start circuit is
closed after the waiting period has elapsed (
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Increase in the number of available contacts by connecting contact expandsion modules
or external contactors/relays.
