Connecting the CAN Communication Cable
Qualified person
Communication between inverter and battery
- Communication between the inverter and the battery takes place via the battery communication cable via CAN bus.
Additionally required material (not included in the scope of delivery):
1 battery communication cable for the communication between inverter and battery.
Alternatively, 1 pre-assembled battery communication cable (SMA order number: HS-COMCBL-3-10) when using SMA Home Storage.
Bootlace ferrules (only for multi-core stranded wire, usable length of the ferrule at least 12 mm).
Procedure:
- Remove 1 sealing plug from the cable support sleeve.
- Lead the communication cable through the swivel nut and threaded sleeve.
- Strip the communication cable 40 mm to 50 mm.
- Trim the cable shield to a length of 15 mm and fold it over the cable sheath.
- Strip the insulation on the insulated conductors each by 12 mm. The CAN L and CAN H must be a twisted pair.
- If necessary, trim unused insulated conductors flush with the cable sheath or fold it over the cable sheath.
- When using a multi-core stranded wire, provide the conductors with bootlace ferrules.
- Connect the conductors of the communication cables to the terminal. Pay attention to the assignment of the terminal and communication connection on the battery and make sure that CAN L and CAN H consist of a pair of conductors. For additional information on how to connect the battery, see Technical Information "Approved Batteries and Information on Battery Communication Connection" at www.SMA-Solar.com.
