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SmartPLC SafeLine with PROFIBUS slave interface
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5.3.3
Connect sensors / actuators
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The sensors or actuators are connected to all local (safe) inputs and outputs via terminal X4.
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WARNING!
The use of invalid combination of local inputs can have a negative impact on the
effectivness of the safety-relevant functions.
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Risk of personal injuries and/or damage to property.
► Use one of the following input combinations for the connection of 2-channel sensors to
implement safety-relevant functions to SIL 3 / cat. 4 / PL e.
IN1 and IN8
IN2 and IN7
IN3 and IN6
IN4 and IN5
ifm electronic does not assume any guarantee for obtaining the required SIL / cat. / PL if
other than the above-mentioned input combinations is used.
► Connect the sensor switching signals 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).