Datasheet

Relays for functional safety
Safety relays PNOZ X
PNOZ X2.3P
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
55
Block diagram/terminal configuration
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)
Function Description
The safety relay PNOZ X2.3P 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 S33-S34 is closed.
} Input circuit is closed (e.g. E-STOP pushbutton not operated):
– Safety contacts 13-14, 23-24 and 33-34 are closed, the unit is active.
– LEDs "CH1" and "CH2" will light.
} Input circuit is opened (e.g. E-STOP pushbutton operated):
– Safety contacts 13-14, 23-24 and 33-34 are opened redundantly.
– LEDs "CH1" and "CH2" go out.
Operating modes
} Single-channel operation: No redundancy in the input circuit, earth faults in the start
and input circuit are detected.
} Dual-channel operation with detection of shorts across contacts: Redundant input cir-
cuit, PNOZ X2.3P detects
– earth faults in the start and input circuit,
– short circuits in the input circuit,
– shorts across contacts in the input circuit.
} Automatic start: Unit is active once the input circuit has been closed.