EP 1090870 B1 20070704 - Safety chain for elevator plant
Title (en)
Safety chain for elevator plant
Title (de)
Sicherheitskreis für eine Aufzugsanlage
Title (fr)
Chaîne de sécurité pour installation d'ascenseur
Publication
Application
Priority
- EP 00121084 A 20000928
- EP 99810919 A 19991008
Abstract (en)
[origin: EP1090870A1] The circuit includes a series circuit of switches for monitoring the safety of devices responsible for lift operation. A voltage source supplies the series circuit. A safety relay (4) is connected to the end of the series circuit, which generates signals for lift control based on the switching state of the switches. A control circuit (10,14) is provided, which maintains the voltage across the safety relay constant. The voltage across the safety relay may be connected to a network (14) whose output is connected to the input of a voltage converter (10) acting as a regulator and supply for the series circuit.
IPC 8 full level
B66B 5/00 (2006.01); B66B 13/22 (2006.01)
CPC (source: EP)
B66B 5/0031 (2013.01); B66B 13/22 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00121084 A 20000928