Retrofitted diesel locomotive uses CANopen

The CANopen-connectable modules are used to monitor the temperature of various vehicle sub-functions. The limited space in the locomotives required the installation of the modules in different positions. The devices are DIN-rail mountable, which facilitates the installation in the control cabinet. Up to 10 modules are linked to the CANopen bus-coupler. The supplier offers a broad range of digital and analog I/O modules. Further significant space savings resulted by using compact interface modules, such as diode modules featuring 6,2-mm relays and interface converters. Consequently, valuable space could be saved in the control cabinet and the complex wiring could be simplified. The DIN-rail mountable products comply with the railway standards including the fire-safety requirements according to NFF16101-102. Furthermore, they comply with the classification I2/F2. For functions that were not available, the supplier developed some special modules for this project. For example, Luetze designed a threshold-switch for data-logging and functional testing of the parking brake.