Electrical panel with automatic control and diagnosis system Tehmin for air-conditioned type 2049 wagons
SACDT-2049C
Presentation
The system is intended to equip 2049 air-conditioned, second-class saloon-type wagons, modernized by SC CFR SIRV BRAŞOV SA.
The system implements an automation network in the wagon, composed of the vehicle bus (CAN network, CANopen protocol) and the train bus (WTB network, according to UIC556).
The control part ensures the control of the doors, lighting, the minimum voltage relay (protection against battery discharge when the static source no longer works), the reception and processing of various analog signals (battery voltage, charging current, three-phase system voltage values, etc.), as well as the control of the passenger information system (information for interior and exterior displays).
The diagnostic part provides data about the controlled systems and collects diagnostic data from various subsystems (e.g., the climate control unit) and transmits it to the first-class wagon for centralization.
The system is integrated by redesigning the electrical installation and the electrical panel, which is also carried out by SC TEHMIN-BRAŞOV SRL.
Supply voltage 24Vdc (-30%+25%); 230/400Vac; 50Hz Overall dimensions 1800x750x450 Operating temperature range -25…+70°C Data networks WTB, CAN, RS485, RS232 rules UIC556, UIC557, SR EN 50155
