SIGNAL+DRAHT | Issue 09/2019

End position detector systems – safety on the right track

September 2019 | Christian Langschwert, Herbert Achleitner

End position detectors are essential components of turnout safety systems. At the same time, a distinction is made between testing the position of the rail at the tip of the switch assembly or the movable frog on the one hand and testing the rear area of the movable rail section up to the fixed point on the other hand. The detectors in the rear area of the moving turnout parts are individual systems which are called end position detectors or field detectors, whose main task is to detect foreign bodies during switching....

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