PNOZ s3
Operating Manual PNOZ s3
21395-EN-12
10
} Start with start-up test: The unit checks whether safety gates that are closed are
opened and then closed again when supply voltage is applied.
} Increase in the number of available instantaneous safety contacts by connecting con-
tact expander modules or external contactors/relays;
A connector can be used to connect 1 PNOZsigma contact expander module.
Timing diagram
Legend
} POWER: Supply voltage
} Start: Start circuit
} Input: Input circuits
} Output safe: Safety contacts
} Out semi: Semiconductor output
} [1]: Automatic start
} [2]: Manual start
} [3]: Monitored start with rising edge
} [4]: Monitored start with falling edge
} 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
: Waiting period with a monitored start
} t
4
: Min. start pulse duration with a monitored start
Installation
Install base unit without contact expansion module:
} Ensure that the plug terminator is inserted at the side of the unit.
Connect base unit and PNOZsigma contact expansion module:
} Remove the plug terminator at the side of the base unit and at the contact expansion
module.
} Connect the base unit and the contact expansion module to the supplied connector be-
fore mounting the units to the DIN rail.
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