Solis Support | Meter Communication & CT Wiring to the Inverter
By Solis
This is an AI-generated summary of “Solis Support | Meter Communication & CT Wiring to the Inverter” — a 2 min YouTube video by Solis, published September 9, 2026. It condenses the full transcript into 8 key takeaways with clickable timestamps.
Summary
This video provides a detailed guide on connecting the meter communication cable and current transformers (CTs) to a primary inverter, including installation steps, orientation, and troubleshooting tips.
Key Points
- First, connect the meter communication cable to the meter port on the primary inverter, specifically using the white and blue wires from the CT485 cable for the TXA and TXB terminals.
- After connecting the communication cable, switch on the battery and DC side to power up the inverter and confirm that the screen displays "meter communication okay" for normal operation.
- If a "meter communication failure" is displayed, troubleshoot by checking if the RJ45 plug is securely inserted and that the white and blue wires are not reversed.
- Next, connect the three CTs (CT1, CT2, and CT3) to their corresponding terminals for phases L1, L2, and L3.
- Install CT1 on the L1 conductor, CT2 on the L2 conductor, and CT3 on the L3 conductor.
- When installing the CTs, ensure the correct orientation: the P2 side should face the grid, and the P1 side should face the inverter.
- It is crucial to match the phase sequence of the CTs (L1, L2, L3) to the specified connections to prevent incorrect readings or system malfunctions.
- Finally, configure the CT ratio on the smart meter according to the manual to ensure accurate measurement and system functionality.
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