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8.3
Electrical connection procedure
The MG Energy monitor has several connections each for a dedicated purpose. Refer to chapter 0 for
information about the available connections.
8.3.1
CAN-bus connection procedure
The display needs to be connected to the BMS CAN-bus of the battery system, please refer to the
blue rectangles in Figure 8 and Figure 9 for what connectors to use on the different MG Master
devices. This can either be RJ45 or M12 connectors. See chapter 11 for cables and adaptor cables
information.
Figure 8 - MG Master LV
Figure 9 - MG Master HV
Preferably an Energy Monitor is at the end of a daisy chain closest to the master used, see Figure 10.
When the Energy Monitor is at the end of a chain a termination resistor should be connected at the
available M12 connector. There should always be two termination resistors on a CAN-bus system, in
the case of the Master HV an termination resistor is already installed internally on the port that
should be used for the Energy Monitor.
Figure 10 - MG Master LV daisy chain
