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The power supplies used must meet the standard DIN EN 60950-1 for SELV/
PELV.
7.3 Connect sensors / actuators
The sensors and actuators are connected to all local (safe) inputs and outputs via
terminal X4.
► Connect the switching signals of sensors to the pins IN1...IN8 of terminal X4.
► Connect actuators to the pins OUT1...OUT4 of terminal X4.
► When external sensors / actuators are connected, their supply voltage and/or
reference potential of terminal X4 (Safe-IO module supply) must be tapped.
► When external sensors are connected, observe the max. permitted supply
voltage of the sensor and select the Safe-IO module supply accordingly.
► The signal cable length for external devices (sensors, actuators) is to be limited
to max. 10 m.
► Do not exceed the maximum output current of 0.5 A per output.
► Do not exceed a switching frequency of 25 Hz when connecting the inductive
loads (DC-13).
8 Operation
8.1 Notes on the EMC-compliant operation
► Use voltage supplies for the device that are not simultaneously used for the
supply of known interfering sources (e.g. large inductive loads, motor starters,
frequency converters, etc.).
► If the switching outputs of the device are used to control inductive loads (relays,
contactors etc.), additional means of suppression have to be provided directly
on those loads.
► Lay the cables of the digital inputs and outputs to be connected via the front
connector in separated cable ducts. There should be no other cables in these
ducts that are control or supply cables of known interfering sources.
This is a class A product which is intended for use in industrial applications.
The unit may cause radio interference in domestic areas. In this case it can
be necessary for the user to take appropriate measures.