Installation of Hub:One with FOX Inverter

Installation of Hub:One with FOX Inverter

POWER DOWN STEPS

Before beginning the installation, it’s important to safely power down the system to avoid electrical hazards and ensure a smooth installation process.


Step 1: Turn off solar input on the inverter

·      Use the dedicated switch located on the bottom left of the inverter to turn off the solar input. This ensures no solar power flows into the system during the installation.


Step 2: Turn off the switch for solar panels (optional)

·      If your system has an additional switch on the solar panel cables, turn it off as well. This is only required if such a switch was installed.


Step 3: Turn off the battery system (optional)

·      If your system has batteries, press the BMS (Battery Management System) power button, then flip the battery circuit breakers off.

·      This step ensures the batteries are completely isolated, preventing them from supplying or receiving power during installation


Step 4: Disconnect the inverter from the grid

·      Turn off the AC/grid isolator. This is usually located between the inverter and the main consumer board (circuit breaker panel).

·      This step ensures the inverter is completely disconnected from the grid.


Step 5: Wait 10 Seconds

·      Wait 10 seconds to ensure the inverter powers down completely.

·      Check that the display screen is off before proceeding.


INVERTER CONNECTION STEPS

Once the system is safely powered down, you can begin connecting the Modbus and CT clamp cables.


Step 1: Disconnect RS485 connector from the inverter
·      Gently push in the clips on each side off the Meter/CT/RS485 connector and pop it off. Be careful not to pull the existing Meter/CT cables as this could damage the wiring.












Step 2: Disassemble the RS485 connector 

  • Use the provided H-shaped tool to insert two arms into the slots on the connector and push down on the clips to open it.  





Step 3: Connect CT clamp wires into RS485 connector 

  • Connect the CT clamp (power meter) wires into pin 7 (CT1-) and pin 8 (CT1+) on the RS485 connector. 

  • These connections allow the system to measure grid power. 





Step 4: Connect Modbus cable to RS485 connector 


  • Take your RJ11 to RJ45 cable from the Hub:One packaging.  

  • Cut off the RJ45 connector (larger end) and strip back the cable to reveal the cores that will consist of Black, yellow, Green and Red. 

  • Black and yellow are not required. Some small 0.25mm bootlace ferrules would be advised.  

  • Red is your RS485A connection. Connect them that to terminal 4 

  • Green is your RS485B connection. Connect that to terminal 3 

  • Ensure to label or note which wire connects to each pin, as incorrect wiring will prevent the inverter from functioning.  




Step 5: Reassemble the RS485 connector 

  • After making the necessary connections, reassemble the RS485 connector by pressing the clips back into place. 




Step 6: Insert reassembled RS485 connector into the inverter 

  • Reinsert the reassembled RS485 connector back into the Fox inverter. 




Step 7: Power On the Fox Inverter 

After completing these steps, turn the system back on: 

  • Turn the AC/grid isolator back on. 

  • Flip the DC breaker on the BMS to the right and press the BMS power button (if applicable). 

  • Turn on the DC side of the inverter. 

 

 

Proceed to Panel Settings Configuration. 

  • Now that the inverter is connected and powered on, proceed to the Panel Settings Configuration steps below. 

 


PANEL SETTINGS CONFIGURATION STEPS 

These steps configure the panel on the Fox inverter to work with the Hub:One. 


Step 1: Access the main menu on the inverter 

  • Press "Return" on the front panel of the inverter to access the main menu. 


Step 2: Start the inverter 

  • Navigate to: Menu > Settings > Start/Stop > Start > Yes 

  • Password: 0-0-0-0 (required). The password will only need to be entered once if all steps are completed within 5 minutes. Otherwise, re-entry will be required. The password can be changed if necessary. 


Step 3: Enable remote control 

  • Navigate to: Menu > Settings > Feature > Remote Control > Enable > Yes 

  • This step is required to work with the Hub:One. 

  • Enables read/write access. Without it, control is limited to inverter panel only.  


Step 4: Disable idle state 

  • Navigate to: Menu > Settings > Feature > Idle State > Disable > Yes 

  • Disabling the idle state isn’t required for the Hub:One to work, but we still recommend doing this. 


Step 5: Set RS485 communication speed 

  • Navigate to: Menu > Settings > Feature > Uart1BpsSet > 9600 > Set/Yes 

  • This step is required to work with the Hub:One. 

  • Ensure the communication speed is set to 9600. 

  • The communication speed must match the value set in the configuration portal (referred to as “Modbus Baud Rate”). 


Step 6: Verify panel client ID 

  • Navigate to: Menu > Settings > Communication > RS485 > Device ID > 247 > Set/Yes 

  • This step is required to work with the Hub:One. 

  • Ensure the device ID is set to 247. 

  • The device ID must match the value set in the configuration portal (referred to as “Client ID”). 

 

 
Proceed to Portal Configuration. 

  • After completing the panel settings configuration steps, proceed to the Portal Configuration steps. 

 

 

PORTAL CONFIGURATION STEPS 

These steps configure the Hub:One through the portal interface. 


Step 1: Sign into the config portal 

  • Once connected to the device, you’ll be prompted for a username and password. 


Step 2: Select Wi-Fi and enter password 

  • In the config portal, choose your Wi-Fi network, enter the password and click "Save". You’ll receive a success message. 


Step 3: Complete inverter details 

  • Select the manufacturer, model and capacity of the installed inverter. 

  • The other settings will be pre-configured. 

  • Ensure the Modbus Baud Rate is set to 9600. 

  • Ensure the Client ID is set to 247. 


Step 4: Complete solar and battery details 

  • Fill out the solar and battery details. 


Step 5: Disconnect the Hub:One from the router 

  • Once the portal configuration is complete, unplug the Hub:One from the router. 

 

 

Complete the last Inverter Connection Steps 

Now, complete the last two steps to connect the Fox inverter with the Hub:One. 


Step 8: Connect the Modbus cable to the Hub:One
​ 

  • Insert the RJ11 end of the Modbus cable into Port 2 of the Hub:One device. 




Hub:One Port 2: RJ11 port 

Step 9: Connect the Hub:One to the power source 

  • Insert the power adapter into Port 1 of the Hub:One. 

  • Insert the adapter into a wall socket. 

  • Turn on the power at the wall socket. 




Hub:One Port 1: USB-C power port


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