Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s7
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
705
Timing diagram
POWER/Input
Output safe
Output aux.
Legend
} POWER/Input: Supply voltage/input circuit
} Output safe: Safety contacts
} Output aux.: Auxiliary contacts
} t
1
: Switch-on delay
} t
2
: Delay-on de-energisation
Installation
Install contact expansion module without base unit:
} 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 expander
module
} Connect the base unit and the contact expansion module using the connector supplied,
before mounting the units to the DIN rail.
Control cabinet installation
} 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
bracket or end angle).
} Push the unit upwards or downwards before lifting it from the DIN rail.