In a previous issue we wrote about our involvement with Yarra Trams, to provide upgrades for their W-Class Restoration Project. These iconic trams were carrying passengers around the streets of Melbourne as early as the 1930’s
Now the first of what will be ultimately many of these historic trams is ready to go, and will very shortly be accepting passengers for service use. We are proud to be a part of this government initiative in restoring these Melbourne Trams and keeping their heritage alive.
The undertaking was not without its constraints, as many of the heritage features were required to be kept.
An overriding objective was to add as many modern automated safety features and functions to the vehicles, yet be invisible to the public. This required some degree of ingenuity on our part, with control devices hidden in cavities previously home to thousands of wires.
For the technically inclined- We provided a solution of a Siemens ET200S CPU and 3 remote I/O racks configured with media redundancy over the Profinet protocol. This configuration allows the removal or damage of one of the Profinet cables with a seamless changeover to the redundant network, which ensures the tram can continue to operate. Our system is controlling all the auxiliary services of the tram such as door and lighting control as well as the points change system. We also provided handshaking signals to the Trams critical safety systems.
Tram 946 has been recently commissioned and whilst all the hard work is hidden from the public’s view, the quality fit-out and the smooth drive systems will give passengers the ride quality of a modern tram with the nostalgia of the Heritage W Class. It is a privilege to be a part of this undertaking, and we can report that the next Tram is currently underway at Bendigo's historic Bendigo Tramways Facility and in the first stages of its transformation.