2.3 Electrical interface BMG has 2 electrical interfaces, a low voltage 12V interface and a 48V interface. The pin outs are shown below, using Molex's 8 pin connector. PIN outs at Connector to BMG NUMBER ALOCATION CHARACTERISTICS
1
KL15
8V-16V, Max.50mA
2
GND
3
KL30
8V-16V, Max.3A
4
NC
5
A CANH
6V-18V, Max. 500mA
6
A CANL
7
B CANH
For development Use
8
B CANL
For development Use
• There is no CAN termination resistor by default. It is inbuilt in the connecting cable to Scotty AI. • The 48V power terminals of BMG consist of two M8 screws and are marked with +/- symbols near the terminals to indicate positive and negative poles. The tightening torque of the nuts should be controlled within the range of 15-19Nm pm. • It is important to pay attention to the correct connection of the positive and negative harnesses. BMG does not have reverse polarity protection and a reverse connection will damage the BMG. • The same applies to Scotty AI. • It is recommended to add a Mega fuse on the connecting 48V Positive Cable between the positive terminals of BMG generator and 48V battery (close to the battery terminal), to protect the components parts and harness in the event of a short circuit. • The Fuse size depends on the cable size chosen. • The Cable Size depends on the Cable run length. • Typical values are a 5m cable run so 35mm2 > 200A Fuse or 50mm2>300A Fuse
Powered by FlippingBook