EP 2826052 A1 20150121 - SAFETY RELAY CIRCUIT
Title (en)
SAFETY RELAY CIRCUIT
Title (de)
SICHERHEITSRELAISSCHALTUNG
Title (fr)
CIRCUIT À RELAIS DE SÉCURITÉ
Publication
Application
Priority
- DE 102012004843 A 20120313
- EP 2013055029 W 20130312
Abstract (en)
[origin: WO2013135719A1] The invention relates to a safety relay circuit, in particular having two relay switches (k1, k2) connected in series or in parallel in a load circuit (LN). A switch-position indicating circuit (A1) is associated with the relay switch (k1). An evaluating circuit compares the command input to the relay (k1) with the indication of the indicating circuit (A1), whereby error states occurring at the relay switches can be detected.
IPC 8 full level
H01H 9/16 (2006.01); H01H 47/00 (2006.01); H02H 1/00 (2006.01)
CPC (source: EP US)
H01H 9/161 (2013.01 - EP US); H01H 47/00 (2013.01 - US); H01H 47/002 (2013.01 - EP US)
Citation (search report)
See references of WO 2013135719A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013135719 A1 20130919; DE 102012004843 A1 20130919; EP 2826052 A1 20150121; EP 2826052 B1 20170104; US 2015016007 A1 20150115
DOCDB simple family (application)
EP 2013055029 W 20130312; DE 102012004843 A 20120313; EP 13709093 A 20130312; US 201314380579 A 20130312