SnapINverter
(Symo, Primo, Eco)
Support
Frequently searched topics
Basics
Fronius SnapINverters combine simple installation, high efficiency, and a maintenance-friendly design. The characteristic snap-in system makes installation, maintenance, and service especially easy.
Planning & installation
Planning
Fronius Solar.creator is a free, flexible, and user-friendly online configuration tool for planning and designing PV systems. Solar.creator supports you throughout all phases of project planning and can be individually adapted to your requirements.
Optional retrofittable surge protection devices are available for Fronius SnapINverters as follows:
- Type 1+2: Symo 3.0 - 20.0 kW, Primo 3.0 - 8.2 kW, Symo Hybrid, and Eco inverters.
- Type 2: Symo 10.0 - 20.0 kW and Eco inverters.
Further documentation and instructions can be found in the Downloads section.
The maximum usable input current (Idc max MPPT1 / MPPT2) cited in the datasheet may be exceeded without violating the warranty conditions.
Note: The maximum short circuit current of the module array (Isc max) must not exceed the value specified in the datasheet.
If Idc max is exceeded, the inverter actively limits the current to the specified value. This can result in small yield losses.
Further information can be found in the associated whitepaper.
DC power optimizers regulate the voltage of overshadowed PV modules. But as shading increases, optimizer self-consumption also increases, reducing efficiency. In instances of partial shading, power optimizers often fail to fully compensate for losses and may not increase overall system performance.
Fronius SnapINverters are not guaranteed to be compatible with power optimizers unless expressly stated by Fronius.
The Fronius Arc Guard safety function detects and interrupts DC arcs in photovoltaic systems. This function was developed to comply with the IEC 63027 standard.
It deals with the technical requirements for Arc Fault Protection Equipment (AFPE) and Arc Fault Circuit Interruption (AFCI) in photovoltaic systems.
The Arc Guard function requires specific hardware and is therefore not included in all Fronius SnapINverters. Only Symo Advanced devices have the hardware integrated and offer the Arc Guard function.
System functions & integration
Fronius Solar.web
Fronius Solar.web is available in full as a desktop or app version for monitoring your SnapINverter inverters.
You can download the Solar.web app from your App Store and the Google Play Store on your smart device!
If there are any problems with the data transfer to Solar.web, please check our Help & solutions.
Fronius SnapINverters are equipped with the Fronius Datamanager 2.0 as standard, but are also available as a Lite version without the Datamanager. The Datamanager can be retrofitted in a Lite device if required.
The Datamanager 2.0 takes care of data logging and the Internet connection. Up to 100 SnapINverters can be connected in a Fronius Solar Net communication loop with a single Datamanager 2.0. However, we recommend smaller loops with a maximum of ten devices to avoid potential differences and make troubleshooting easier. Further information can be found in the associated whitepaper.
Note: Other Fronius inverters such as GEN24 or Verto cannot be integrated into Solar Net loops. They must be connected to the Internet separately. All inverters can then be integrated into the same Solar.web system and displayed together.
Energy management & interfaces
Fronius SnapINverters are equipped with Fronius Datamanager 2.0 as standard. The Datamanager offers four digital outputs for intelligent load management. This allows for targeted control of loads such as heat pumps, heating elements, and pool pumps. Further information can be found in the whitepaper on energy management.
The Fronius Ohmpilot uses PV energy to heat water. Further information and instructions can be found on the Ohmpilot support page.
The Fronius Wattpilot is a PV charging solution for electric cars. Further information and instructions can be found on the Wattpilot support page.
In addition, the inverters have open interfaces that allow them to be easily connected to a variety of third-party components, such as heat pumps or smart home systems. The settings for the open interfaces can be found on the user interface of the Datamanager under “Settings”. You can find the current list of compatible systems here.
Further information and instructions on the interfaces can be found on the Open interfaces page.
Compatible batteries & backup power
SnapINverters (Symo, Primo, Eco) do not support battery operation or backup power options. For storage solutions and backup power solutions, we recommend using a hybrid inverter such as the Fronius Verto Plus or Fronius GEN24 Plus.
An overview of the compatible batteries can be found on the battery compatibility page.
Smart Meter
With the Fronius Smart Meter, both the system data and the power consumption of the household can be recorded and used for intelligent energy management. We recommend placing the Smart Meter at the feed-in point.
Further secondary meters can also be connected in order to visualize individual loads (Fronius Energy Profiling). All Fronius Smart Meters, regardless of version or age, can be combined with each other.
Sensors
With the Fronius Sensor Card or Fronius Sensor Box, up to six sensors for measuring irradiation, ambient temperature, module temperature, and wind speed can be integrated into the Fronius system monitoring package.
By measuring the irradiation and module temperature, it is possible to detect anomalies in the system performance quickly.
Help & solutions
An inverter failure can usually be recognized by the red LED on the device. Proceed as follows:
- Check status codes
A failure is usually accompanied by a status code. If several codes are shown on the display, you can acknowledge them by pressing the enter button (far right). The meaning of the codes and possible solution steps can be found in Solar.web under Service messages. - Restart the inverter
A restart often resolves any problems. Carry out the following steps:
1. Disconnect on the AC side (RCCB or automatic circuit breaker).
2. Disconnect on the DC side (switch located on the inverter).
3. Leave the inverter switched off for at least 30 seconds until all LEDs have gone out.
4. Reconnect the AC and DC sides. - Install the latest software
Make sure that your inverter is up to date with the latest software version. - Request help
End customers: Contact your installer or use our Fronius installer search.
Installers: Use Solar.SOS.
You can find both in the contact area.
Via WiFi:
- On the inverter display, navigate to Setup → WiFi Access Point and confirm activation.
- Connect your laptop, tablet, or smartphone to the "fronius_2xx.xxxx"WiFi network. Once the WiFi access point has been activated, the network security key will appear on the display.
- Open a browser (e.g., Google Chrome) and enter the following IP address in the address bar: 192.168.250.181
Via Ethernet:
- Set the IP switch to position A. The small DIP switch is located next to the four LEDs on the Datamanager.
- Connect your PC or laptop to the Datamanager using a network cable (CAT5 or higher).
- Open a browser (e.g., Google Chrome) and enter the following IP address in the address bar: 169.254.0.180
- Download the firmware file from the downloads area.
- Copy the file froXXXXX.upd to an empty USB thumb drive. The USB drive must be formatted with FAT32.
- Remove the gray cover from the bottom of the inverter and connect the USB drive to the USB port.
- Navigate to Setup → USB → Software Update on the inverter display. The currently installed firmware version and the new version are displayed. Press the Enter button (far right) to start the update.
- Download the Datamanager 2.0 firmware file.
- To open the downloaded file, right-click on it and select Run as administrator. A window opens with the message ftp-server is running.
- Set the IP switch to position A. The small DIP switch is located next to the four LEDs on the Datamanager.
- Connect your PC or laptop to the Datamanager using a network cable (CAT5 or higher).
- Open a browser (e.g., Google Chrome) and enter the following IP address in the address bar: 169.254.0.180
- Deactivate the firewall and anti-virus software on your PC or laptop.
- Navigate to Firmware Update on the user interface and select Update via LAN. Click on Run update and confirm the process.
If a password for the local user interface has been forgotten, click on “Forgot password?” to generate a PIN for the user role (“Admin” or “Service”). This PIN can be used to generate an activation code that enables the password to be re-registered.
Reset the “Admin” password:
- Go to your system in Fronius Solar.web with the generated PIN.
- Navigate to Settings → Components.
- Click “Actions” for the data source of the inverter and select “Reset admin password” to create the activation code for a new “Admin” password.
Note: The “Reset admin password” function can only be used by the owner of the Solar.web system. If this function is not visible, you are not entered as the owner. In this case, contact the installer of your system.
Reset the “Service” password:
The “Service” password is reserved for trained specialist personnel (electricians, system installers, Fronius Solutions Partners). They can use the “Recovery Key” function in Fronius Solar.SOS to reset the password.
Important note:
The activation code is only valid as long as the corresponding PIN is displayed on the user interface. For security purposes, the system resets the PIN following an inverter reboot or five consecutive failed activation attempts. In this case, a new activation code must be generated.
Carry out the following steps to reconfigure the network after changes such as a router replacement, and to establish an Internet connection:
- Access the user interface of the inverter. The Setup wizard must be fully completed. If the wizard opens automatically when you call up the user interface, please follow all the necessary steps.
- Navigate on the user interface to Settings → Network.
- Select the desired connection type: LAN or WiFi.
- LAN: Select the Dynamic or Static setting. Dynamic is sufficient in most cases. Static may be mandatory in some company networks. Contact the network administrator of your system for the static IP address.
- WiFi: Select your home network under Available networks. Click on Setup and enter the WiFi password. Under Configure WiFi IP, select Dynamic or Static. Dynamic is sufficient in most cases. Static may be mandatory in some company networks. Contact the network administrator of your system for the static IP address. - Click in the top right-hand corner to check the box and apply the settings.
Reasons for missing notification in the event of a device failure:
Sending service messages is deactivated on Solar.web
- Navigate to your system in Fronius Solar.web under Settings → Solar.web.
- Click on Edit and check the Send service messages box.
- Specify the period of time after which you would like to be notified in the event of a failure.
- Confirm the settings with Ok.
No e-mail address stored for notifications
Navigate to your system in Fronius Solar.web under Settings → Contacts and check whether your e-mail address has been entered correctly. Click on your e-mail address and then on Edit. Check whether the Receive service messages box is checked.
Sending service messages is deactivated on the Datamanager
Access the user interface of the inverter and navigate to Settings → Solar.web and activate the function Send urgent service messages to Fronius Solar.web immediately at occurrence.
Learn what steps can be taken to solve common issues when accessing the user interface.
Check connection to the WiFi access point
The WiFi access point automatically deactivates 1 hour after activation or when the network settings are changed. Some end devices may disconnect automatically if the Internet connection is lost. Therefore, make sure that your end device (laptop, tablet, smartphone) is still connected to the inverter’s WiFi access point.
Connection via network security key (Windows 10)
Windows 10 devices automatically prompt you to enter a PIN code when connecting to a new WiFi network. In this case, select the option to enter a network security key instead. The network security key can be found on the rating plate on the side of the inverter. If there is no password printed on the rating plate, use 12345678 as a default.
Delete the browser cache and cookies
Problems with displaying the user interface or the password prompt are often caused by stored browser data. Therefore, close the user interface, delete the cache and cookies for the entire period and then call up the user interface again. These are deleted in the browser settings. The procedure varies depending on the browser used.
Restart the inverter
If the user interface no longer responds, a restart may help:
- Disconnect on the AC side (RCCB or automatic circuit breaker).
- Disconnect on the DC side (switch located on the inverter).
- Leave the inverter switched off for approx. 30 seconds until all LEDs have gone out.
- Then reconnect the AC and DC sides.
Install the latest software
Make sure that your inverter is up to date with the latest software version.
Downloads & technical data
For operating instructions, data sheets, firmware updates, and other downloads, please select your device.
Contact & training
