GoodWe ET Series Hybrid Inverter Quick Installation Guide

Part 1: Quick Installation

This section covers the initial steps for installing the GoodWe ET Series hybrid inverter.

Step 1: Instructions for Quick Installation

A. Installation Space

Ensure adequate clearance around the inverter for ventilation and maintenance:

• Upward: Minimum 300mm
• Downward: Minimum 500mm
• Front: Minimum 300mm
• Left and Right Sides: Minimum 200mm

B. Dimensions for Drilling Holes

Details for drilling mounting holes on the wall:

• Hole spacing: 110mm horizontally, 120mm vertically.
• Hole size: 4 holes of Ø10mm, 80mm depth.

C. Attach the Wall Bracket

Secure the wall bracket to the wall using self-tapping screws and expansion pipes.

D. Installation

Connect the ground cable to the ground plate on the grid side. The inverter can be locked for anti-theft purposes if needed.

F. PV Wire Assembly and Connection

Prepare PV wires (2.5-4mm²) for connection. Ensure a crimping length of 7mm. Compatible with MC4 Series and AMPHENOL Series connectors.

E. Battery Wire Assembly and Connection

Specifications for battery wire assembly:

Connect the battery wires, ensuring proper torque (2 Nm) for connections.

G. AC Cable Assembly and Connection

Specifications for AC cable assembly:

Note: Ensure cables (L/N/PE) are connected to the correct locations.

H. Communications Cable Connections

Connect communication cables to the Smart Meter and Battery. The Smart Meter cable can be extended up to 100m.

Connections:

• To Smart Meter: Connect communication cable.
• To Battery: Connect communication cable (essential for battery function).

CT Connections (for Power Meter/Smart Meter):

• CT A connected to L1
• CT B connected to L2
• CT C connected to L3

I. DRED Cable Assembly

DRED (Demand Response) connection is available for Australia and New Zealand. It involves connecting specific function pins (DRM1/5, DRM2/6, etc.) using screws, nuts, insulators, and a communication board.

J. Remote Shutdown Cable Assembly

Remote shutdown connection is available for Europe. Similar assembly to DRED, using screws, nuts, insulators, and a communication board.

K. Wiring System for ET Series Hybrid Inverter

This diagram illustrates the wiring structure for ET-series AC-coupled inverters. It shows connections for PV Strings, Battery, Loads (1-Phase and 3-Phase), Inverter, DC Breaker, AC Breakers, Smart Meter, and Power Meter.

Breaker Specifications:

Important Notes:

• For batteries with attached breakers, the external DC breaker can be omitted.
• Use CT A for L1, CT B for L2, and CT C for L3. Ensure the connection direction is "House(K) → Grid(L)" to avoid PV Master App errors.

Part 2: SOP of Battery Connection to the Hybrid Inverter

This section details the connection methods between GoodWe hybrid inverters and specific battery models (e.g., BYD-Box Premium HVM/HVS). Refer to the respective user manuals for detailed operations and commissioning.

Precautions

• Ensure the battery and inverter are not damaged. Turn off the battery breaker before proceeding.
• Access the battery connectors by removing the cover plate of the battery control unit.

Step 1: Power Cable Wiring

Route the battery power cable (4-6mm²) through the battery cover plate and connect it to the appropriate port. Connect the other end to the inverter using the provided battery connectors.

Step 2: Communication Cable Wiring

This involves preparing and connecting the communication cable (e.g., CAT-5) between the battery and the inverter.

• Cut off the preset BMS communication cable attached to the inverter.
• Split the pin cables inside the communication cable using professional tools.
• Connect CAN_H (Blue wire) and CAN_L (Blue & White wire) to ports 1 and 2 respectively on the inverter's BMS communication connector.

BMS Communication Connector Pin Functions on Inverter Side:

After connecting power and communication cables, replace the cover plate. The battery is then ready for startup.

Step 3: Commissioning

Commissioning is required for both the battery and the inverter.

Battery Commissioning

Use the "Be Connect App" for battery commissioning. Follow the BYD Battery-Box Premium Firmware update & Configuration Guideline for details. The app is available for iOS and Android.

Steps:

• Select "GOODWE HV" for the inverter option in the app.
• Select the battery model (e.g., HVM) and set the correct module number. For paralleled batteries, use the Master unit's module number.

Inverter Commissioning

For detailed inverter commissioning, refer to the GoodWe PV Master User Manual. Incorrect commissioning can lead to BMS communication failure.

Battery Paralleling

For detailed instructions on battery paralleling, refer to BYD instructions. This includes system wiring diagrams and internal communication wiring for paralleling multiple Battery Control Units (BCUs).

Part 3: Wi-Fi Configuration Instruction

This section guides you through connecting the inverter to your Wi-Fi network.

Step 3. Wi-Fi Configuration Instruction

A. Preparation

1. Power on the inverter or EzLogger Pro (Wi-Fi version).
2. Power on your Wireless Router.
3. Connect your smart device (phone/tablet) to the inverter's Wi-Fi network.

B. Connect to "Solar-WiFi"

1. Connect your smart device to the Wi-Fi network named "Solar-WiFi" or "Solar-WiFi*" (where * represents the last eight digits of the inverter's SN). The default password is "12345678".
2. Visit the website http://10.10.100.253 in your smart device's browser.
3. Enter the username "admin" and password "admin", then click "OK".

Tip: Refresh the page if you encounter an "Unauthorization Login" error.

C. Preparation (Setup Wizard)

Click "Start Setup" to launch the Wi-Fi setup wizard.

The wizard will guide you to select your current wireless network (Router SSID), enter the password, and configure other Wi-Fi parameters.

Key Information Displayed:

• Firmware version
• MAC address
• Wireless AP mode (SSID, IP address)
• Wireless STA mode (Router SSID, Encryption algorithm, Router Password)

Tip: The Wi-Fi module specification is available on the device information page.

Note: A "cannot join the network error" may occur if the router is not found, the signal is too weak, or the password is incorrect.

Selecting a Wi-Fi Network:

The interface lists available Wi-Fi networks with their SSID, Authentication/Encryption, RSSI (signal strength), and Channel. Select your network and click "Next".

Tip: If the RSSI is below 15%, the connection may be unstable. Choose a stronger signal or move closer to the router. If your router does not broadcast its SSID, click "Next" to add it manually.

D. Connect to "Solar-Wi-Fi" (Final Configuration)

Enter your wireless router's password and click "Next". Ensure all parameters match your router's settings, including case sensitivity for SSID and password.

You can also manually add a wireless network by entering its name (SSID), encryption method, and algorithm.

Tip: Ensure there are no unacceptable characters in the password to avoid configuration failure.

Click "Complete" to save the settings. The configuration takes effect after the device restarts.

E. Troubleshooting

This table provides solutions for common Wi-Fi configuration issues: