When performing DSP and HMI firmware updates on the Solis RHI-1P(5-10)K-HVES-5G series inverters one of two things must first be done:
- The AC breaker must be turned off - note: this only works if there are no module-level rapid shutdown (MLRSD) receivers installed
- The inverter must be put into standby mode (PV generation temporarily disabled) - note: this should be done if there are MLRSD receivers installed
The process for putting the system into standby is this:
- Press any button to light up the screen, then press the enter button
- Press Up or Down to highlight "Advanced Settings", then press enter
- Press these buttons in this order: down, down, up, enter
- Press down to highlight "Switches", then press enter
- Press down to highlight "Off", then press enter
- You will hear an audible click sound and the screen will say "Done"
- Press the Escape button until you are back to the main screen
- Verify that the PV has dropped to 0.0W - if so, the system is in standby mode
- You are now able to perform firmware updates
- Note: once the update is done, the system will automatically turn standby mode off
- If this does not happen, go back to Switches, then highlight On and press Enter
- The system should be back to normal production within six minutes