Residential Smart PV Solution Quick Guide

1 Networking

This section details how to connect loads to the SmartGuard, illustrating scenarios for connecting all loads and some loads.

Connecting All Loads to the SmartGuard

Diagram shows a residential PV system with an inverter, ESS, and SmartGuard. It illustrates the connection of various loads, including backup and non-backup loads, to the SmartGuard. The diagram emphasizes the use of RCDs for backup loads and highlights the main circuit breaker's role in protection. It also notes that either EMMA or Smart Dongle can be used for networking, but not both simultaneously. A charger, if configured, must be connected to the non-backup load port.

Connecting Some of Loads to the SmartGuard

This diagram illustrates a similar PV system setup but shows a scenario where only some loads are connected to the SmartGuard. This is typically when the main circuit breaker's rating exceeds 63A. The diagram visually represents the connections and the optional components.

Note: The three-phase SmartGuard supports a maximum load current of 63 A. If the load current exceeds 63 A, only some loads can be connected. A power meter is required between the three-phase SmartGuard and the main circuit breaker.

2 Product Overview

This section provides an overview of the components within the residential smart PV solution.

3 Cable Connections

This section provides detailed diagrams and tables for connecting various components of the three-phase PV+ESS system with SmartGuard networking.

Cable Connections (Three-Phase Inverter M1/MB0 + ESS S0 + SmartGuard)

Diagrams illustrate the physical connections between the inverter, ESS, SmartGuard, power grid, and loads (backup and non-backup). Detailed tables list the cable types, components, and ports for each connection point, numbered from 1 to 16.

DANGER: Ensure all switches are OFF before connecting cables to prevent electric shock. An RCD must be installed for backup loads, and a main circuit breaker with leakage protection is required. The residual operating current must meet specific requirements based on the number and type of inverters.

NOTICE: Use outdoor shielded twisted pair cables for signal connections. Only one inverter can connect to the SmartGuard. The PEN connection for the SmartGuard-63A-T0 backup power port is mandatory, while it's optional for the SmartGuard-63A-AUTO.

Cable Connections (Three-Phase Inverter MAP0 + ESS SO + SmartGuard Connected to All Loads)

Similar to the above, this section details connections for the MAP0 inverter, showing all loads connected to the SmartGuard. It includes diagrams and tables for specific cable connections.

Cable Connections (Three-Phase Inverter MAP0 + ESS SO + SmartGuard Connected to Some of Loads)

This section covers the scenario where only some loads are connected to the SmartGuard, with diagrams and tables detailing the connections.

Cable Connection Description

Method 1: Uses DO dry contacts to drive the SG Ready heat pump (max. 12V DC @ 1A).

Method 2: Uses a 12V @ 30mA power supply to drive an external relay, with contact capability chosen based on the SG Ready heat pump port.

4 System Commissioning

This section guides users through the process of commissioning the smart PV solution using the FusionSolar app.

App-based Deployment Procedure

The procedure involves downloading and installing the FusionSolar app, signing up as an installer (optional), entering the setup wizard, and checking device status.

Downloading and Installing the FusionSolar App

Instructions are provided to search for the app in the app store or scan a QR code for download.

Installer Registration

Details on initial registration to create an installer account and generate a company-named domain. It also covers non-initial registration for creating multiple accounts within a company.

Setup Wizard (Connecting to the EMMA WLAN for Commissioning)

This subsection outlines the steps for setting up the WLAN information of the charger, scanning device QR codes or entering serial numbers (SN) to connect devices to Huawei SmartPVMS, and setting up plant details.

Set the router parameters

Instructions on configuring router parameters, including DHCP settings, IP addresses, subnet masks, gateways, and DNS servers, ensuring the router supports 2.4 GHz WLAN.

Generating a Physical Layout on the App

This part details how to generate a physical layout of the PV optimizers, either automatically by uploading a template or manually by editing the layout and binding SNs. It includes steps for taking photos of the layout template and adjusting the physical layout.

Creating a Physical Layout on the App Manually

This subsection provides a step-by-step guide on manually creating a physical layout, including editing the layout, specifying inverter and PV module quantities, binding optimizer SNs, and adjusting the physical layout.

5 On/Off-Grid Control Parameters

This section covers the control parameters for the smart PV solution, focusing on enabling off-grid mode and setting up seamless switchover.

Enabling Off-Grid Mode

A flowchart illustrates the process: Monitor -> Inverter -> Set. This leads to settings for off-grid mode, backup power SOC, and grid-tied/off-grid mode switching.

Setting Seamless Switchover

This subsection details the process of setting up seamless switchover, involving setting the 'Whole-House Power Backup Settings' and configuring parameters like backup time, warning threshold, rated power, and max output power.

6 Grid-tied Point Parameters

This section focuses on the parameters related to grid-tied operation.

Setting Grid-tied Point Control

This describes how to adjust power settings, including limited feed-in and control modes such as unlimited, grid connected with zero power, limited feed-in (kW), and power-limited grid connected (%). It also covers demand limit, battery control, and power lowering/raising thresholds.

7 Physical Layout of Smart PV Optimizers

This section provides instructions on how to create a physical layout of the smart PV optimizers.

Attaching SN Labels

Instructions on removing SN labels from optimizers and attaching them to a physical layout template.

Taking a Photo of the Physical Layout Template

Guidance on ensuring the four positioning points on the template are within the camera frame.

Generating a Physical Layout on the App

Steps for entering the layout screen and generating the physical layout, either automatically or manually.