Circuit arrangement for monitoring the fault-free and / or for recognizing a faulty state of a system

摘要

The invention relates to a circuit for monitoring trouble-free and/or incorrect state of a cable car or chair lift installation, comprising a plurality of monitoring and detection devices (1) and at least one control and evaluation unit (2), wherein the monitoring and detection devices (1) are series connected to each other and to the control and evaluation (2) unit and can be interrogated regarding their state, especially their switching state. In order to meet as many security requirements as possible while at the same time requiring little assembly area, each monitoring and detection device (1) comprises a plurality of different zones of influence (3) and several signal outputs.