5.1 Preparation of Commissioning

• Ensure all devices are accessible for operation, maintenance, and service.
• Check and confirm that the inverter is firmly installed.
• Space for ventilation is sufficient for one inverter or multiple inverters.
• Nothing is left on the top of the inverter or battery module.
• Inverter and accessories are correctly connected.
• Cables are routed in a safe place or protected against mechanical damage.
• Warning signs and labels are suitably affixed and durable.
• Bluetooth Antenna has been connected to the Antenna port of the inverter.
• An Android or iOS mobile phone with Bluetooth function is available.
• Soliscloud APP is installed on the mobile phone.

There are three ways to download and install the latest APP:

1. Visit www.soliscloud.com to download the latest version APP.
2. Search "Soliscloud" in Google Play or App Store.
3. Scan the QR code to download "Soliscloud".

5.2 Commissioning Procedure

Step 1: Measure DC voltage of PV strings and battery and ensure the polarity is correct.

Step 2: Measure AC voltage and frequency and ensure they are within local standard.

Step 3: Switch on the external AC breaker to power on the inverter control board. (Bluetooth signal available)

Step 4: Turn on Bluetooth switch on your mobile phone and then open the Soliscloud APP. Click "More Tools" -> "Local Operation" -> "Connect with Bluetooth".

Step 5: Select the Bluetooth signal from the inverter. (Bluetooth Name: Solis-Inverter SN)

Step 6: If you are the installer, please select the account type as Installer. If you are the plant owner, please select the account type as Owner. Then set your own initial password for control verification. (The first log-in must be finished by installer in order to do the initial set up)

Step 7: After the log in for the first time, initial settings are required.

• Step 7.1: Set the inverter Date and Time. You can set to follow the time on your mobile phone.
• Step 7.2: Set the battery model. It must be based on the battery model that is actually connected to the inverter. If there is no battery connected for the moment, please select "No Battery" to avoid alarms. The default setting for battery over discharge SOC is 20%, force charge SOC is 10%.
• Step 7.3: Set the meter setting. It must be based on the meter type that is actually connected to the inverter. If there is no meter connected for the moment, please select "No Meter" to avoid alarms. It is suggested to install the meter at the system grid connection point and select "Meter in Grid".
• Step 7.4: Set the grid code setting. Please select the grid code based on the local grid network requirements.
• Step 7.5: Set the work mode setting. Recommended setting is Self-Use Mode. This mode can maximize the use of PV power generation for household electricity, or store it in batteries and use it for household electricity. If manual control of the battery charging and discharging with respect to time is needed, please use the Time of Use switch and the following set points. The “Allow Grid Charging" is recommended to be turned on (If turned off, the inverter will not force charge the battery and battery could potentially go to sleep).

Step 8: Now the initial settings on the inverter have been set and you can switch on the inverter DC switch and switch on the battery breaker to start up the system. You can also explore in the APP to check the operating data, alarm message, or other advanced settings.

Step 9: If the Owner forgot the password, please contact the installer. Installer logs in and goes to "Setting" -> "More" -> "Change Password" to reset the password for the owner's account. If the Installer forgot the password, please contact the Solis service team.

5.3 Shutdown Procedure

1. Turn off the AC breaker at the grid connection point.
2. Turn off the DC switch of the inverter.
3. Turn off the battery breaker.
4. Wait for the device to be powered off and the system shutdown is completed.

6. Troubleshooting

Solis S6 Series inverter does not require any regular maintenance. However, cleaning the heatsink will help the inverter dissipate heat and increase the lifetime of inverter. The dirt on the inverter can be cleaned with a soft brush.

CAUTION: Do not touch the surface when the inverter is operating. Some parts may be hot and could cause burns. Turn OFF the inverter (refer to Section 6.2) and let it cool down before you do any maintenance or cleaning of the inverter.

The screen and the LED status indicator lights can be cleaned with a cloth if they are too dirty to be read.

Note: Never use any solvents, abrasives, or corrosive materials to clean the inverter.

The inverter has been designed in accordance with international grid-tied standards for safety and electromagnetic compatibility requirements. Before being delivered to the customer, the inverter is subjected to several tests to ensure reliability of operation and reliability.

In case of a failure, the app will display an alarm message. In this case, the inverter may stop feeding energy into the grid. The alarm descriptions and their corresponding alarm messages are listed in Table 6.1:

NOTE: If the inverter displays any alarm message listed in Table 6.1, please turn off the inverter and wait for 5 minutes before restarting it. If the failure persists, please contact your local distributor or the service center.

If you have any technical problems with the hybrid system, please contact the Solis after-sale service. We recommend gathering the following information before making contact in order to get timely support.

7. Specifications