We now have a simpler solution for the two single units that need priority changeover.
The HGM9310CAN series genset controller can be very simple to realize the two gensets priority changeover without too much parameter setting and external circuit. The two controllers can communicate with each other via the CANBUS interface and select one of the units to priority via the knob switch. When the mains is abnormal, the priority genset start and closing with load. When there is a fault about the priority genset, the fault information can be sent to the standby genset via CAN communication interface, the standby genset will automatically start and closing with load. The closing circuit of the two controllers has electric interlock, there will not be closing at the same time. In addition, users can add mechanical interlock device of the two switches according to their own demand, further increasing the reliability of the system.