In this connection, director, mechanical engineering (traction) of Railway Board, SM Sharma has written to chief mechanical engineers of all zonal railways, including the North Central Railway, to take steps in this direction. The letter, dated June 13, 2011, asks the chief mechanical engineers to expedite the fitment of VCDs to meet the target by March 2012. Though majority of diesel locomotives have been fitted with VCDs, some are still left.
The Vigilance Control Device ensures the safe plying of trains. It also helps in data analysis for management review in case of derailment or any accident. Driving function like throttle, master controller, horn, sander, loco brake, train brake, dynamic brake, headlight, etc., are taken as input signals for VCD operation.
VCD improves vigilance and provides warning and brake application signals in a predefined manner. It also records data of penalty brake application event, VCD bypass, VCD suppression in a non-volatile memory for management reviews, if required. It is Windows-based data extraction and analysis software for report generation. Its user friendly data analysis software allows to configure the unit with predefined timing cycle parameters.
North Central Railway has about 117 diesel locomotives. While VCD has been installed in 78 diesel locomotives, steps are being taken for installation of the system in the remaining locomotives.
The letter also states that no diesel locomotive fitted with VCD should be turned out from the shed with VCD in defective/isolated condition. If the VCD gets defective/isolated en route, loco should be declared `failed' on arrival at destination/changing pint. The reason of isolation should be investigated thoroughly and action be initiated against the erring staff, the letter adds.
The letter also mentions that each zonal railways should furnish a list of the individual loco numbers which have been fitted with VCD to the Railway Board.
Source - Times of India