GoodWe PV Master Application Manual

Introduction

The PV Master application is designed for GoodWe inverters. It is used for monitoring, setting parameters, and configuring Wi-Fi communication for the inverters. It is compatible with both Android and iOS operating systems.

Main functions of the application:

• Perform system settings, both locally and remotely, to ensure the system operates as required.
• Monitor and control the performance of grid-tied or hybrid inverters.

The following pages will guide you through the use of the PV Master application on GoodWe hybrid inverters. Please follow the instructions in this manual.

Illustration showing the PV Master app interface on Android and iOS devices.

App Availability

PV Master can be used on iOS and Android operating systems. Install the application on your device.

For Android System:

• Location: Google Play
• Search Terms: PV Master / EzViewer
• Compatibility: Android

For iOS System:

• Location: App Store
• Search Terms: PV Master / EzViewer
• Compatibility: iOS 8.0 or higher for iPhone / iPad / iPod Touch

Visuals of Android and Apple devices displaying the PV Master app.

Application Description

1. Main Page

Upon launching the application, the first page displays two configuration interfaces:

• Local Configuration: Use when connected to Solar-WiFi*.
• Remote Monitoring and Setting Login: Use after the inverter is connected to home Wi-Fi and registered on the GoodWe portal.

Screenshot of the PV Master app's main login/configuration screen.

2. Local Configuration (Parameter Settings)

Local settings for the inverter can be performed in two ways:

a. Connecting to Solar-WiFi* using a smartphone

• Wi-Fi Name: "Solar-WiFi*" (* represents the last 8 digits of the inverter's serial number).
• Password: 12345678

Illustration showing Wi-Fi connection details for Solar-WiFi.

b. Connecting a smartphone to the Wi-Fi network to which the inverter has been registered (refer to Wi-Fi module settings)

Select the inverter you wish to configure.

If you have an existing account, log in using your username and password (symbols + and & are not permitted).

Here you can register by entering your email or phone number.

Here you can perform inverter settings after connecting to Solar-WiFi*.

Screenshots detailing the login, new registration, and local configuration options within the app.

Screenshot showing a smartphone's Wi-Fi settings, highlighting a 'Solar-WiFi' network.

3. Basic Setting

In "Basic Setting", you will configure "Safety Country", "Work Mode", and "Battery Model".

Click "Login" to enter the settings.

$ ightarrow$ Select "Safety Country"

Choose the country to which the inverter's safety requirements will be set. Scroll to view more options. If your country is not listed, select "50 Hz Grid Default" or "60 Hz Grid Default" based on your grid frequency. After selecting the country, click "Next" to set the inverter's operating mode.

Screenshots showing the navigation to Basic Settings and the Safety Country selection screen with various country flags.

4. Select "Work Modes"

Work modes determine the behavior of the hybrid system. Consider carefully which mode you choose.

• General Mode: The most commonly used mode. PV energy first supports household loads, then charges the battery, and any remaining energy can be sent to the grid. The battery charges or discharges automatically based on system demand.
• Off-Grid Mode: Used for island mode (without the distribution grid). Selecting this mode automatically disconnects the inverter from the grid, even if it is available. This mode permanently switches the inverter to island mode. In this mode, the inverter may shut down if no power is available from the battery or PV.
• Back-Up Mode: Batteries will only discharge in the event of a distribution grid outage. The battery remains charged and ready to power the Back-Up output. Battery charging time is set to 00:00-23:59. Note: Batteries can be charged every day from 23:59-00:00.
• Economical Mode: Used for battery charging/discharging according to user needs. If you choose Economical Mode, options for setting battery charging/discharging will appear (Fig. 6). Note: Charging/discharging times and power limits apply only when the distribution grid is available.

Charge Manage:

Set the charging time range and charging power as a percentage of the total inverter power.

• Charge Time: During charging, the battery will not discharge, even during a grid outage.
• Charge Power Limit: Maximum charging power (percentage of inverter power) for the set time. For example, for GW3648D-ES, setting the power limit to 50% means the maximum charging power will be 50% * 3600W = 1800W.

Discharge Manage:

Set the discharging time range and discharging power as a percentage of the total inverter power.

• Discharge Time: During the set discharge time, discharging will occur even if the grid is unavailable or the SOC is low.
• Discharge Power Limit: Maximum discharging power (percentage of inverter power) for the set time. For example, for GW3648D-ES, setting the power limit to 50% means the maximum discharging power will be 50% * 3600W = 1800W.

Click "Next" for further settings.

Diagrams illustrating the different work modes (General, Off-Grid, Back-Up, Economical) and the settings screen for Economical Mode.

$ ightarrow$ Select "Battery Type"

After setting the work mode, click "Next" and select the battery type (Fig. 7). NOTE: 1. If an incorrect battery type is selected for a lithium battery, communication with the BMS will not function. 2. If you select a battery type, its settings will be applied automatically.

NOTE: All settings must be configured precisely according to the battery specifications.

If your battery is not in the list, select "SELF-DEFINE" to set custom battery parameters.

Click "Start" to confirm the settings.

Explanation of individual settings:

• Battery Capacity: The closest value to the sum of whole battery capacity.
• Charge Voltage: Maximum charge voltage is limited from 50V to 60V. Enter the proper value carefully according to the parameters of the batteries and connection structure.
• Charge Current: The maximum charge current is limited from 5A to 50A. Enter the proper value carefully according to the parameters of the batteries and connection structure.
• Discharge Current: Set the maximum discharge current (only under on-grid mode).
• SOC Protect: Battery stops discharging according to the discharge interval (e.g., 20% depth of discharge, 40% battery stop discharge when SOC reaches 40% (only under on-grid mode)).
• Discharge Depth: Namely DOD, means the maximum percentage of battery discharge. The battery will stop discharging when it reaches the set value. Only effective when SOC Protection is turned ON.
• Floating Voltage: Suggest 3V lower than charge voltage.
• Floating Current: Suggest 5-8A.
• Floating time: Suggest 15-20 min.

Confirm parameters to change, you need to restart the equipment.

Screenshots showing the battery model selection and detailed battery parameter settings.

5. Advanced Setting

NOTE: "Advanced settings" are used to configure special functions such as "Power Limit" (export power limit) and "Back-Up Function" (enable backup output). Typically, the password is only provided to dealers and installers; therefore, do not disclose the password to end-users unless necessary.

Enable this function if your distribution company does not allow feed-in to the grid, or if the customer does not want PV production to be exported to the grid.

NOTE: If you use this function and set a power limit, PV production will be limited when household consumption is low or the battery is charged.

Explanation of individual settings:

• Power Factor: Used only when you need to compensate for capacitive or reactive power.
• Back-Up Supply: The "Back-Up Supply" switch should be turned ON if you have loads connected to the Back-Up output (which will be energized regardless of whether the distribution grid is available).
• Off-Grid Output Switch: The "Off-Grid Output Switch" should be turned ON if you want the Back-Up output to be active even when the distribution grid is unavailable.
• Export Power Limit: Only effective when EzMeter is connected well in the system. Export Power Limit ON, then you can set Power Limit (W) below, which means the maximum power allowed to feed into the grid.
• Shadow Scan: Suggest OFF if your panels are not heavily shadowed. Shadow Scan ON means the system will take one minute to track the MPPT point once an hour. During that minute, PV will not produce.
• Battery Activated: Used only for lithium batteries. It protects the battery from falling below the SOC threshold due to critical overload. If the SOC drops below the threshold, the system will charge the battery from the grid. In some batteries, manual activation may be required.
• Grid Quality Detection: Used when you want the system to switch to Back-Up mode when the grid is abnormal, based on grid quality.
• Low Sensitivity: Generally not used. Similar to "Grid Quality Detection" (grid quality detection), it is more sensitive.
• Reset Back-Up Overload: Used only for specific situations where the Back-Up load power is limited to the allowed range. This button is used to reset the reconnection time as default. This function will restart the Back-Up output immediately.

Click "<" and then click "Yes" if you want to save the settings made in "Advanced Setting".

These settings are the same as in "Basic Setting". They are usually used for verification only.

Screenshots showing navigation to Advanced Settings and the various configuration options within it.

Diagnose Message:

If the system is functioning abnormally, the customer can tap this item to check the inverter's status.

Contact:

For technical support, contact your local GoodWe branch or service@goodwe.com.

Refer to the Frequently Asked Questions (FAQ).

6. System Status Check

To view the system status, click "Local Configuration" on the main page.

Note: Icons and data on this page may have a delay of several minutes compared to real-time data from the inverter. Tapping on an individual icon in the diagram displays real-time data for each component, as shown below. Alternatively, click "Param" to view more values.

Note: Values may differ from those on the home page due to time delays and different calculation methods.

• Battery Status: Displays the current SOC and the battery's operating status (Charge or Discharge).
• BMS Status: Displays the BMS communication status of the lithium battery ("Communication OK" means communication is normal).
• SOH: Data from the battery's BMS regarding the health of the lithium battery - 100% indicates a perfect battery state.
• Charge/Discharge Current Limit: Displays the current limit for charging and discharging the lithium battery.

Screenshots illustrating the system overview diagram and the 'Param' screen showing detailed system data.

Actual PV Data: PV voltage / Power, E-Dnes & E-Cellkem.

Actual Battery Data: Voltage / Proud / Power of battery, SOC status, BMS communication status, Further BMS information.

Grid Data: Power (V / I / Fout), Measured Power (PMeter), EzMeter communication.

Loads: On-Grid consumption, Back-Up consumption.

7. Auto-Test (Italy Only)

Note: A. The automatic testing option is only available when "Italy" is set as the country. B. Before using the auto-test, ensure the Solar-WiFi signal is stably connected to your smartphone.

- Auto-Test Procedure

1. Click "Auto-Test", and the inverter will switch to test mode.
2. Connect the inverter to the distribution grid; the inverter will signal that it is connected, and the output power will be zero.
3. Under normal conditions, the inverter's SN, model, firmware version, and country (if not Italy, please change it to Italy) are displayed automatically.

Note: a. "Remote" default setting is 1 and cannot be changed. b. "Local" default setting is 0, which can be set to 0 or 1.

4. If "Remote" and "Local" are not set, testing will proceed with default values. Testing sequence: 59.S1, 59.S2, 27.S1, 81>S2, 81<S2. Note: If "Local" is set to 1, the test sequence will be 59.S1, 59.S2, 27.S1, 81>S2, 81<S2.
5. If the test is successful, the inverter's relay will disconnect and reconnect to the grid automatically according to CEI 0-21 requirements. Then, the next test will start.

NOTE: A. After completing the automatic test, the test data will be saved in a folder for later use. B. If you end the test or leave the test screen midway, the test will be terminated.

WARNING: 1. Ensure your smartphone remains unlocked during the automatic test, otherwise the test may fail. 2. If the test fails, the inverter will enter standby mode. You will need to reconnect to Solar-WiFi* to complete the test or restart the inverter and try again.

Screenshots showing the navigation to the Auto-Test function and the Auto-Test interface with various test parameters.

8. Wi-Fi Module Setup

Setting up the Wi-Fi module is crucial for remote monitoring, configuration, maintenance, and warranty checks of the inverter.

$ ightarrow$ Accessing Settings:

There are two ways to set up the Wi-Fi module:

a. Before Login:

Local Configuration $ ightarrow$ Set $ ightarrow$ Configure Wi-Fi Quickly (see below).

Screenshot showing the path to Wi-Fi configuration before login.

b. Login or Use Demo Account:

Screenshots showing the login process and the main screen after login, leading to Wi-Fi configuration.

$ ightarrow$ Wi-Fi Module Setup Description:

Step 1: Ensure your inverter is powered on and your smartphone is connected to Solar-WiFi.

Illustration of the inverter power status and smartphone Wi-Fi connection.

NOTE: 1. After setup, the Wi-Fi indicator light or power light on the inverter usually changes from double blinking to quadruple blinking and then stays lit steadily after about 10 seconds. 2. The setup process completes even if you enter the wrong password for your WiFi. Therefore, ensure the password you enter is absolutely correct.

Step 2: Click "Next" to select your Wi-Fi network or enter the Wi-Fi name and password manually.

Enter the Wi-Fi name and password manually.

Step 3: Select/enter the Wi-Fi network name and password, then click the "Start" button to connect to the router.

Here you can find help with Wi-Fi module setup issues.

Select your home Wi-Fi (router).

Enter the password for your Wi-Fi (router).

Step 4: If the "Success" message appears on the screen, click "OK" to complete the setup.

Screenshots detailing the Wi-Fi configuration steps, including network selection, password entry, and success confirmation.

9. Registering a New Account and Creating a New Power Plant

In the PV Master app, you can register an account via email or phone number. This registration is necessary for remote monitoring and inverter configuration.

$ ightarrow$ Account Registration

Screenshots showing the account registration process via phone and email.

Note: You can only register one account per email address or phone number.

Carefully select the user type. If you are an installer, contact your distributor for the dealer code. If you are a dealer or direct distributor of GoodWe, contact GoodWe for the dealer code.

$ ightarrow$ Create a Power Plant and Register its Devices

Step 1: Log in to your account.

Click here to add new devices to your power plant, or scan the QR code.

Final Step: Click the "Save" button to save the power plant.

Enter the power plant name (max. ten words).

Click "Next" after entering the serial number and verification code.

Alternatively, enter the serial number of the inverter for manual configuration.

If you are registering power plants for others, the location will be set automatically.

Screenshots illustrating the process of creating a new power plant and registering devices, including scanning QR codes and manual entry.

10. Remote Setting and Monitoring

After successfully setting up Wi-Fi and registering in the PV Master app or on the GoodWe portal, you can perform remote settings and monitoring (this applies only to dealers).

Screenshots showing the login process for remote access and the selection of a power plant for configuration.

Click the "Configure" button to adjust the device settings.

Click "Send" to apply the settings.

$ ightarrow$ Remote Monitoring

On the monitoring page, you can check the data as shown below:

Real-time total power.

Step 1: Log in to your account.

Step 2: Click on the power plant you want to monitor.

Step 3: Click here to view the details of the device you want to monitor.

Screenshots demonstrating the remote monitoring interface, showing power plant lists, device details, and data charts (daily, monthly, yearly).

Current PV Data: PV voltage / Power.

Current Battery Data: Voltage / Proud / Battery Power, SOC status, BMS communication status, Further BMS information.

11. User Center

The User Center is where you can manage your account settings.

Screenshot showing the User Center menu with various options.

Convert produced kWh to your currency.

Check your inverter's warranty.

You can receive messages on your phone.

Click to log out of your account.

Screenshots illustrating account settings, push notification preferences, and profit ratio settings.