SPECIAL INSTRUCTIONS FOR ELECTRONIC SUBSYSTEMS 5-29 E UROCARGO Euro 4/5 Figure 5.14 Installation of a supplementary alternator TO THE BATTERY 117410 Supplementary electric units Special attention must be paid when refrigeration units are installed that for a power source use a second alternator mounted on the engine (additional generator). These generators, according to the speed, supply voltage in the order of 270 to 540 V that comes through the wiring to the refriger- ator unit installed on the vehicle. There is a clear danger of diaphony (electromagnetic interference between near cables) that can be generated between the aforesaid wiring and that already on the vehicle.
In these cases it is necessary to use cables with high insulation, using a preferential route, however not near the standard wiring of the vehicle. For these units observe the levels of electromagnetic emissions indicated above. In case of malfunction of the standard alternator (e.g. low voltage, no signal), an error message will be signalled on the instrument panel. An additional alternator cannot be connected to the MUX and therefore in case of malfunctioning the MUX is not able to detect which alternator is not working correctly. Electrical system: modifications and drawing-off power Print 603.93.431 Base - January 2008 TO THE BATTERIYES