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1. (WO2017167434) SAFETY CIRCUIT

Pub. No.:    WO/2017/167434    International Application No.:    PCT/EP2017/000344
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Fri Mar 17 00:59:59 CET 2017
IPC: F15B 19/00
Applicants: HYDAC SYSTEMS & SERVICES GMBH
Inventors: DEHLINGER, Dominique
JENE, Thilo
GRÜN, Stephan
Title: SAFETY CIRCUIT
Abstract:
A safety circuit, consisting of at least one hydraulic consumer (2), a valve device (12) for activating the hydraulic consumer (2), which has an LS-signal-carrying LS line (38), and an operator control device (46) for actuating the valve device (12) by means of an activation signal of a control device (CPU, 20), is characterized in that, for detecting malfunctions of the hydraulic consumer (2) and/or of the valve device (12) by means of the control device (CPU, 20), a plausibility comparison of the respective LS signal with the respective activation signal can be carried out.