PNOZ s3
Operating Manual PNOZ s3
21395-EN-10 5
}Manual start: Unit is active once the input circuit is closed and then the start circuit is
closed.
}Monitored start with falling edge: 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.
}Monitored start with rising edge: Unit is active once the input circuit is closed and
once the start circuit is closed after the waiting period has elapsed (see technical de-
tails).
}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.
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.
Installation in control cabinet
}The safety relay should be installed in a control cabinet with a protection type of at least
IP54.
}Use the notch on the rear of the unit to attach it to a DIN rail (35 mm).
}When installed vertically: Secure the unit by using a fixing element (e.g. retaining brack-
et or end angle).
}Push the device upwards or downwards before lifting it from the DIN rail.
Wiring
Please note:
}Information given in the "Technical details" must be followed.
}The outputs 13-14, 23-24 are safety contacts.
}Semiconductor output Y32 should not be used for safety circuits!
}To prevent contact welding, a fuse should be connected before the output contacts (see
technical details).
