COUPLED CONTROL CIRCUIT FOR INTERPHONE AND EMERGENCY BRAKE OF RAILWAY CAR

摘要

PURPOSE: An interphone and emergency brake interlocking control circuit of a railway vehicle is provided to significantly improve safety and driving efficiency by connecting and controlling an emergency brake and an interphone of the railway vehicle. CONSTITUTION: An emergency brake relay(10) is installed between a first power source and an emergency brake circuit. The emergency brake relay is excited when a railway vehicle starts to operate. A contact point(20a) of an interphone relay determines an on/off state according to a condition of an interphone arranged in a passenger room. A passenger alarm relay(30) is installed between the contact point of the interphone relay and the emergency brake circuit by being connected to the emergency brake circuit in parallel. A contact point(10a) of the emergency brake relay and a contact point(30a) of the passenger alarm relay are connected in series.