Datasheet

Relays for functional safety
Safety relays PNOZ X
PNOZ X2.9P
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
114
} Automatic start: Unit is active once the input circuit has been closed.
} Manual start: Unit is active once the input circuit and the start circuit are closed.
} Monitored start: Unit is active once the input circuit is closed and once the start circuit is
closed after the waiting period has elapsed (see Technical details [ 118]).
} Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.
Timing diagram
[1][1] [2][2] [3][3]
Legend
} Power: Supply voltage
} Start: Start circuit
} Input: Input circuit
} Output safe: Safety contacts
} Output aux: Auxiliary contact
} [1]: Automatic start
} [2]: Manual start
} [3]: Monitored start
} a: Input circuit closes before start circuit
} b: Start circuit closes before input circuit
} t
1
: Switch-on delay
} t
2
: Delay-on de-energisation
} t
3
: Recovery time
} t
4
: Waiting period with a monitored start