SOLIS 75K-5G-PRO - User Manual

Questions and Answers

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Brandon WarnerAug 21, 2025
How to fix 'OV-G-V01/02/03/04' error on SOLIS Inverter?
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  Jeanne LoganAug 21, 2025
  If your SOLIS Inverter displays 'OV-G-V01/02/03/04', it could be that the resistance of the AC cable is too high. Try changing to a bigger size grid cable. Alternatively, adjust the protection limit if your electrical company allows it.
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pscottAug 25, 2025
Why does my SOLIS 75K-5G-PRO have no power?
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  Amy CherryAug 25, 2025
  If your SOLIS Inverter has no power, first check the PV input connections. Next, check the DC input voltage (single phase >120V, three phase >350V). Finally, check if PV+/- is reversed.
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Trevor HillAug 26, 2025
How to fix 'GRID-INTF01/02' error on SOLIS Inverter?
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  Julie JohnsonAug 26, 2025
  If your SOLIS Inverter displays 'GRID-INTF01/02', try restarting the inverter. If the issue persists, consider changing the power board.
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Peggy OdomAug 28, 2025
What does 'PV ISO-PRO 01/02' mean on SOLIS 75K-5G-PRO Inverter and how to fix it?
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  Adam HinesAug 28, 2025
  If your SOLIS Inverter shows 'PV ISO-PRO 01/02', remove all DC input, reconnect, and restart the inverter one by one. Identify which string is causing the fault and check the isolation of that string.
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philipsalasAug 30, 2025
What causes 'ILeak-PRO 01/02/03/04' error on SOLIS 75K-5G-PRO Inverter?
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  Joseph FrazierAug 30, 2025
  If your SOLIS Inverter displays 'ILeak-PRO 01/02/03/04', check both the AC and DC connections. Also, check the cable connections inside the inverter.
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Juan JohnsonSep 1, 2025
How to resolve 'UN-G-V01/02' error on SOLIS 75K-5G-PRO?
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  Anthony HernandezSep 1, 2025
  If your SOLIS Inverter displays 'UN-G-V01/02', use the user defined function to adjust the protection limit if your electrical company allows it.
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Joseph PhillipsSep 3, 2025
What to do if SOLIS 75K-5G-PRO Inverter shows 'OV-DC01/02/03/04'?
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  rogersjeremySep 3, 2025
  If your SOLIS Inverter displays 'OV-DC01/02/03/04', reduce the number of modules in series.
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Gavin ReedSep 5, 2025
Why does the LCD on my SOLIS 75K-5G-PRO Inverter keep initializing?
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  Juan StephensSep 5, 2025
  If the LCD of your SOLIS Inverter shows initializing all the time, check if the connectors on the main board or power board are fixed. Also, check if the DSP connector to the power board is fixed.
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michael51Sep 7, 2025
What does 'OV-BUS' mean on my SOLIS 75K-5G-PRO Inverter?
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  randy22Sep 7, 2025
  If your SOLIS Inverter displays 'OV-BUS', check the inverter inductor connection and the driver connection.
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herreraaustinSep 9, 2025
What does 'DC-INTF OV-DCA-I' mean on a SOLIS 75K-5G-PRO?
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  Mark HessSep 9, 2025
  If your SOLIS Inverter displays 'DC-INTF OV-DCA-I', restart the inverter. Identify and remove the string to the fault MPPT. If problem persists, change the power board.

SOLIS 75K-5G-PRO Specifications

General

Model	SOLIS 75K-5G-PRO
Rated Power	75 kW
Max. DC Input Power	112.5 kW
Max. Input Voltage	1100 V
Start-up Voltage	200V
MPPT Voltage Range	200-1000 V
Max. Input Current per MPPT	26 A
Number of DC Inputs per MPPT	2
Max. AC Apparent Power	82.5kVA
Max. Output Current	120A
Rated Grid Voltage	400 V
AC Voltage Range	320-480V
Grid Frequency	50/60 Hz
Total Harmonic Distortion (THDi)	<3%
Power Factor	>0.99
DC Switch	Yes
Protection Degree	IP66
Max Efficiency	98.7%
European Efficiency	98.3%
Operating Temperature Range	-25°C to +60°C
Communication	RS485, Wi-Fi
AC Output Voltage Range	320-480 V