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Safety sensors Note Example • Series-wiring of sensors:6 self-monitoring CSS 180 safety sensors
can be wired in series without detriment ot
control category 4 to EN 954-1. The redun-
dant output of the first sensor is wired into
the input of the next sensor. Note The voltage drop over a long sensor chain should be taken into account when planning cablerouting. The exact value of the operating voltage, wire cross-section and cable length, itstemperature, number of sensors connected and the input load of the safety control monitor are all factors that must be considered. 1-97
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