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SOLIS S5 Series - User Manual

SOLIS S5 Series
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User Manual
for S5 Series Grid Inverter
Version 1.8, Release Date: 11,2022
Applicable models
S5-GC75K-US
S5-GC80K-US
S5-GC90K-US
S5-GC100K-US

Table of Contents

Other manuals for SOLIS S5 Series

Preview: Installation And Operation Manual
Installation And Operation Manual32 pages

Questions and Answers

  • S
    sullivandouglasSep 18, 2025
    What does PV ISO-PRO 01/02 mean on my SOLIS Inverter?
    • V
      vmooreSep 18, 2025
      The PV ISO-PRO 01/02 error on your SOLIS Inverter indicates that the inverter detects low DC insulation resistance. Inspect the installation, reset the inverter, and note the weather conditions when the alarm occurs. Measure the insulation resistance; if it's normal, measure it again in the same weather conditions as when the alarm occurred. Physically check the cables. If the problem persists, replace the inverter.
  • J
    Jeffrey CampbellAug 25, 2025
    How to fix a NO-GRID error on a SOLIS S5 Inverter?
    • D
      Dr. Eddie WhiteAug 25, 2025
      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.
  • D
    dhaydenAug 25, 2025
    What to do if my SOLIS S5 shows 'Over Temperature'?
    • G
      georgestewartAug 26, 2025
      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.
  • X
    xingramAug 26, 2025
    What to do if SOLIS Inverter LCD has no power?
    • T
      Terry KaiserAug 27, 2025
      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.
  • L
    Lauren BurtonSep 19, 2025
    How do I resolve an INI-FAULT (Initialization Protection) error on my SOLIS S5?
    • G
      ghortonSep 22, 2025
      The INI-FAULT error on your SOLIS Inverter indicates that the Master and Slave DSP have different values. To resolve this, reset the inverter by turning the DC switch OFF, waiting until all lights/LCD turn off, and then turning the DC switch ON. If the issue persists, replace the inverter.
  • W
    William HudsonSep 23, 2025
    Why is the screen blank on my SOLIS Inverter?
    • A
      adamcarterSep 23, 2025
      If your SOLIS Inverter screen is blank, it could be due to low or missing input voltage, reversed polarity, or a damaged main board. To troubleshoot, with the DC switch OFF, test the PV connections, check the polarity, and ensure the voltage is greater than 200V. With the DC Switch ON, check the voltage again to ensure it's greater than 200V. If the DC voltage is "0", replace the inverter.
  • K
    Kimberly PriceSep 9, 2025
    What to do if a SOLIS Inverter shows UN-G-V (Under Grid Voltage) error?
    • M
      Marcus AlvarezSep 9, 2025
      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.
  • J
    Julie JoyceSep 12, 2025
    What causes an OV-G-F (Over Grid Frequency) error on a SOLIS S5 Inverter?
    • D
      Diane JohnsSep 12, 2025
      The OV-G-F error on your SOLIS Inverter indicates that the inverter detects the grid frequency as being too high. To troubleshoot, with the DC switch OFF, check the frequency at the inverter test points. If the frequency measures high, adjust the upper limit with permission from the utility. Also, check the LCD 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.
  • X
    xbryantSep 3, 2025
    What to do if SOLIS Inverter shows over DC bus voltage?
    • V
      victorpughSep 3, 2025
      If the SOLIS Inverter shows over DC bus voltage, check the inverter inductor connection and the driver connection.
  • I
    Isaac AndersonSep 1, 2025
    How to reduce DC voltage on SOLIS S5?
    • A
      Adam WilsonSep 1, 2025
      If the SOLIS Inverter shows over DC voltage, reduce the number of modules in series.

Summary

Important Notes

Introduction

Product Description

Describes the function of Solis three-phase inverters.

Front Panel Display

Details the components and layout of the inverter's front panel.

LED Status Indicator Lights

Explains the meaning of the POWER, OPERATION, and ALARM LEDs.

Unpacking

Lists the included accessories and steps for unpacking the inverter.

Tools Required for Installation

Shows the tools needed for installing the inverter.

Storage

Provides instructions for proper storage of the inverter before installation.

Safety Instruction

Safety Symbols

Defines safety symbols used throughout the manual for risk indication.

General Safety Instructions

Provides essential safety precautions for operating and installing the inverter.

Notice for Use

Outlines installation requirements and startup procedures.

Protection Circuitry and Controls

Explains AFCI and Anti-Islanding protection features.

Installation

Environmental Considerations

Details environmental requirements for inverter location and operating conditions.

Product Handling

Provides instructions for safely handling and moving the inverter.

Mounting the Inverter

Describes methods for mounting the inverter to walls or racking.

Wall Mounting

Step-by-step guide for mounting the inverter on a wall.

Rack Mounting

Step-by-step guide for mounting the inverter on a rack.

Electrical Connections

Details the process and specifications for connecting DC and AC power.

Grounding

Explains the grounding procedure for safety.

Connect PV Side of Inverter

Guides on connecting the DC input from PV strings.

Connect Grid Side of Inverter

Guides on connecting the AC output to the grid.

Communication & Monitoring

RS485 Communication

Describes RS485 communication methods using RJ45 and terminal blocks.

Ethernet Communication

Explains Ethernet communication for monitoring and Modbus TCP.

Commissioning

Selecting the Appropriate Grid Standard

Explains how to verify and select the correct grid standard for operation.

Changing the Grid Standard

Provides procedures for changing the inverter's grid standard settings.

Setting a Custom Grid Standard

Guides on creating a custom grid configuration for specific needs.

Preliminary Checks

Outlines essential checks before commissioning the inverter.

DC Configuration

Details checks for DC input voltage, polarity, and string configuration.

AC Configuration

Details checks for AC voltage, frequency, and phase rotation.

Normal Operation

Start-up Procedure

Step-by-step guide for safely starting up the inverter.

Shutdown Procedure

Step-by-step guide for safely shutting down the inverter.

Main Menu

Overview of the inverter's main menu structure.

Information

Accesses operational data and system information.

Settings

Contains options for configuring time, date, and inverter address.

Set Time

Allows adjustment of the inverter's internal clock and date.

Set Address

Enables setting a unique address for monitoring multiple inverters.

Advanced Info - Technicians Only

Provides access to detailed system information for qualified technicians.

Advanced Settings - Technicians Only

Offers advanced configuration options for technicians.

Selecting Standard

Allows selection of grid reference standards or custom configurations.

Grid ON;OFF

Function to start or stop the inverter's power generation.

Reset Password

Enables changing passwords for advanced menus.

Power Control

Allows setting active and reactive power parameters.

Calibrate Energy

Function to revise and synchronize total energy readings.

STD Mode Settings

Configuration for standard operating modes based on grid standards.

Working Mode Set

Configuration for different working modes based on selected grid standards.

With UL Standard Selected

Defines working modes applicable to UL standards.

With Rule21 Standard Selected

Defines working modes applicable to Rule21 standards.

I;V Curve

Used to scan and analyze the I/V characteristic curves of PV strings.

AFCI Function

Details the Arc Fault Circuit Interrupter function for fire prevention.

Maintenance

Anti-PID Function

Integrates module to recover PID effect and protect PV system.

Fan Maintenance

Procedures for cleaning or replacing the inverter's cooling fans.

Troubleshooting

Current Alarm

Information on viewing and managing current alarms.

Alarm History

Guidance on accessing and viewing past alarm records.

Error Messages

Explains how to interpret and clear error messages.

Specifications

S5-GC75 K-US Specifications

Technical specifications for the S5-GC75K-US model.

S5-GC80 K-US Specifications

Technical specifications for the S5-GC80K-US model.

S5-GC90 K-US Specifications

Technical specifications for the S5-GC90K-US model.

S5-GC100 K-US Specifications

Technical specifications for the S5-GC100K-US model.

Appendices

Temperature Derating

Details how ambient temperature affects inverter output power.

Input Voltage Derating

Shows how input DC voltage affects inverter output power.

Output Voltage Derating

Illustrates how output AC voltage affects inverter output power.

P-Q Capabilities at Nominal Output Power

Charts showing reactive power capabilities at various conditions.

Default Grid Setting for UL-480-18

Lists default grid protection settings for UL-480-18 standard.

SOLIS S5 Series Specifications

General IconGeneral
Number of MPPTs2
Output Voltage230 V
Frequency50/60 Hz
Max. AC Output Power5000W
Operating Temperature Range-25°C to +60°C
Rated AC Output Power2.5 kW / 3 kW / 3.6 kW / 4 kW / 5 kW / 6 kW
Max. AC Output Current21.7A
Cooling MethodNatural Convection
Humidity0~100 %
ModelS5 Series

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