Connecting the CAN communication between the battery cabinets
Qualified person
One inverter can have up to four battery cabinets connected to it. For systems with more than one battery cabinet, the battery cabinets must be connected to each other in series via a CAN communication bus. All connections are made on the high-voltage box.
Procedure with the last battery cabinet:
- Unplug the preinstalled CAN connector from COM0 and plug into the T adapter from the accessory kit.
- Move the terminator preinstalled in COM1 to another port of the T adapter.
- Plug the short communication cable from the accessory kit into the third port of the T-adapter and into COM0.
- Plug the communication cable into COM1, facing the direction of the previous battery cabinet.
- Check the connections on the T adapter.
- 1x short communication cable to COM0.
- 1x communication cable to control panel (LCU).
- 1x terminator.
Procedure with further secondary battery cabinets:
- Remove the terminator preinstalled in COM1.
- Plug the communication cable into COM1 facing the direction of the next battery cabinet.
- Unplug the preinstalled CAN connector from COM0 and plug into the T adapter from the accessory kit.
- Plug the communication cable facing the direction of the previous secondary battery cabinet into another port of the T adapter.
- Plug the short communication cable from the accessory kit into the third port of the T-adapter and into COM0.
- Check the connections on the T adapter.
- 1x short communication cable to COM0.
- 1x communication cable to control panel (LCU).
- 1x communication cable facing the direction of the previous secondary battery cabinet.
- Repeat the steps on all secondary battery cabinets apart from the last battery cabinet.
Procedure on the primary battery cabinet:
- Remove the terminator preinstalled in COM1.
- Plug the communication cable to the first secondary battery cabinet into COM1.