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Tara EdwardsSep 4, 2025
How to resolve grid interference with SOLIS Inverter?
- EericbakerSep 4, 2025
If the SOLIS Inverter is experiencing grid interference, try restarting the inverter. If the problem continues, consider changing the power board.
How to resolve grid interference with SOLIS Inverter?
If the SOLIS Inverter is experiencing grid interference, try restarting the inverter. If the problem continues, consider changing the power board.
How to fix a NO-GRID error on a SOLIS S5 Inverter?
If your SOLIS Inverter displays a NO-GRID error, it means the inverter isn't detecting the grid. To troubleshoot, with the DC switch OFF, check the AC voltage at the inverter test points (L-L, L-GND). Also, check the LCD reading, as there may be a bad measurement circuit. With the DC switch ON, check the grid standard. If the issue persists, replace the inverter.
What to do if my SOLIS S5 shows 'Over Temperature'?
If your SOLIS Inverter is showing an 'Over Temperature' error, check the ventilation around the inverter to ensure it's not obstructed. Also, verify whether the inverter is exposed to direct sunlight during hot weather.
What to do if SOLIS Inverter LCD has no power?
If your SOLIS Inverter's LCD has no power, check the PV input connections. Also, verify the DC input voltage (single phase >120V, three phase >350V) and ensure that the PV+/- connections are not reversed.
What to do if my SOLIS Inverter shows 'Over DC voltage'?
If your SOLIS Inverter is showing an 'Over DC voltage' error, reduce the number of modules in series.
Why my SOLIS Inverter can not start-up?
If your SOLIS Inverter cannot start up, check if the connectors on the main board or power board are securely fixed. Also, check if the DSP connector to the power board is properly connected.
What to do if a SOLIS Inverter shows UN-G-V (Under Grid Voltage) error?
If your SOLIS Inverter is showing a UN-G-V error, it means the inverter detects the grid voltage as being too low. To troubleshoot, with the DC switch OFF, check the AC voltage at the inverter test points. If the AC voltage measures low, adjust the lower limit with permission from the utility. Also, check the LCD voltage reading, as it may be a bad measurement circuit. With the DC switch ON, check the grid standard. If the issue persists, replace the inverter.
What to do if SOLIS S5 is internally damaged?
If the SOLIS Inverter is internally damaged, do not turn off the DC switches, as this will further damage the inverter. Wait for the solar irradiance to reduce and confirm the string current is less than 0.5A with a clip-on ammeter before turning off the DC switches. Note that damages due to wrong operations are not covered under warranty.
What to do if SOLIS Inverter shows over DC bus voltage?
If the SOLIS Inverter shows over DC bus voltage, check the inverter inductor connection and the driver connection.
How to reduce DC voltage on SOLIS S5?
If the SOLIS Inverter shows over DC voltage, reduce the number of modules in series.
General| Number of MPPTs | 2 |
|---|---|
| Output Voltage | 230 V |
| Frequency | 50/60 Hz |
| Max. AC Output Power | 5000W |
| Operating Temperature Range | -25°C to +60°C |
| Rated AC Output Power | 2.5 kW / 3 kW / 3.6 kW / 4 kW / 5 kW / 6 kW |
| Max. AC Output Current | 21.7A |
| Cooling Method | Natural Convection |
| Humidity | 0~100 % |
| Model | S5 Series |
Describes the function of Solis three-phase inverters.
Details the components and layout of the inverter's front panel.
Explains the meaning of the POWER, OPERATION, and ALARM LEDs.
Lists the included accessories and steps for unpacking the inverter.
Shows the tools needed for installing the inverter.
Provides instructions for proper storage of the inverter before installation.
Defines safety symbols used throughout the manual for risk indication.
Provides essential safety precautions for operating and installing the inverter.
Outlines installation requirements and startup procedures.
Explains AFCI and Anti-Islanding protection features.
Details environmental requirements for inverter location and operating conditions.
Provides instructions for safely handling and moving the inverter.
Describes methods for mounting the inverter to walls or racking.
Step-by-step guide for mounting the inverter on a wall.
Step-by-step guide for mounting the inverter on a rack.
Details the process and specifications for connecting DC and AC power.
Explains the grounding procedure for safety.
Guides on connecting the DC input from PV strings.
Guides on connecting the AC output to the grid.
Describes RS485 communication methods using RJ45 and terminal blocks.
Explains Ethernet communication for monitoring and Modbus TCP.
Explains how to verify and select the correct grid standard for operation.
Provides procedures for changing the inverter's grid standard settings.
Guides on creating a custom grid configuration for specific needs.
Outlines essential checks before commissioning the inverter.
Details checks for DC input voltage, polarity, and string configuration.
Details checks for AC voltage, frequency, and phase rotation.
Step-by-step guide for safely starting up the inverter.
Step-by-step guide for safely shutting down the inverter.
Overview of the inverter's main menu structure.
Accesses operational data and system information.
Contains options for configuring time, date, and inverter address.
Allows adjustment of the inverter's internal clock and date.
Enables setting a unique address for monitoring multiple inverters.
Provides access to detailed system information for qualified technicians.
Offers advanced configuration options for technicians.
Allows selection of grid reference standards or custom configurations.
Function to start or stop the inverter's power generation.
Enables changing passwords for advanced menus.
Allows setting active and reactive power parameters.
Function to revise and synchronize total energy readings.
Configuration for standard operating modes based on grid standards.
Configuration for different working modes based on selected grid standards.
Defines working modes applicable to UL standards.
Defines working modes applicable to Rule21 standards.
Used to scan and analyze the I/V characteristic curves of PV strings.
Details the Arc Fault Circuit Interrupter function for fire prevention.
Integrates module to recover PID effect and protect PV system.
Procedures for cleaning or replacing the inverter's cooling fans.
Information on viewing and managing current alarms.
Guidance on accessing and viewing past alarm records.
Explains how to interpret and clear error messages.
Technical specifications for the S5-GC75K-US model.
Technical specifications for the S5-GC80K-US model.
Technical specifications for the S5-GC90K-US model.
Technical specifications for the S5-GC100K-US model.
Details how ambient temperature affects inverter output power.
Shows how input DC voltage affects inverter output power.
Illustrates how output AC voltage affects inverter output power.
Charts showing reactive power capabilities at various conditions.
Lists default grid protection settings for UL-480-18 standard.