Battery Communications Integration Guide

01 JUNE 2022 V 2.6 22
PYLONTECH US3000C
No additional hardware is required to establish communications with Pylontech US3000C
batteries. (Consult Pylontech for other compatible battery modules for communication)
• You will need to make a custom cable for this setup.
Communications Installation and Setup Instructions
9. Connect all batteries with the RJ45 cable from Link Port 1 to Link Port 0. The first
battery with Link Port 0 empty would be the master battery. (Can use up to 16 batteries
with 1 master battery and 15 slave batteries)
10. (Optional) Set the ADD switch according to the battery manual if more than one string of
batteries is in the battery bank.
11. Create a custom cable that connects pins 4, 5, and 6 ONLY (solid-blue, white-blue, and
solid-green) to the battery.
12. Pin four (4) (solid-blue) need to connect to pin four (4) on the inverter.
13. Pin five (5) (white-blue) need to connect to pin five (5) on the inverter.
14. Pin six (6) (solid-green) need to connect to pin six (6) on the inverter.
a. On indoor units, pin six (6) (solid-green) need to connect to pin two (2) on the
inverter.
15. Connect the cable to the “A/CAN” port on the Pylontech master battery and the “Battery
CAN Bus” port (or the “CAN” port for indoor-only units) on the Sol-Ark.
a. The cable is NOT reversible for indoor units; therefore, keep track of which end
of the custom cable connects to the battery and the Sol-Ark.
16. Program the inverter with the appropriate charge/discharge settings according to the
specific battery manual.
17. Enable “BMS Lithium Batt” and set its value to “00”.
18. (Optional) Turn on “BMS_Err_Stop” if you wish for the system to fault on loss of battery
communications (Pylontech recommend
leaving the “BMS_Err_Stop” on in order to
better protect their batteries).
Inverter Port