SOLIS 4G Series User Manual
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SOLIS 4G Series User Manual

SOLIS 4G Series User Manual

Grid inverter
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User Manual
for 4G Series Grid Inverter - Solis-1P(3.6-5)K-4G-US
Applicable Models
Solis-1P3.6K-4G-US
Solis-1P5K-4G-US
Applicable System
Single phase Grid-Tie system
Version 1.0, Release Date: 12,2022

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Summary of Contents for SOLIS 4G Series

  • Page 1 User Manual for 4G Series Grid Inverter - Solis-1P(3.6-5)K-4G-US Applicable Models Solis-1P3.6K-4G-US Solis-1P5K-4G-US Applicable System Single phase Grid-Tie system Version 1.0, Release Date: 12,2022...
  • Page 2 Individuals reviewing this document and installers or service personnel are cautioned, however, that Solis reserves the right to make changes without notice and shall not be responsible for any damages, including indirect, incidental or...

  • Page 3: Table Of Contents

    Table of Contents 1 Introduction 2 Safety Instructions 3 Overview 4 Installation 5 Start and Stop 6 Operation 7 Maintenance 8 Troubleshooting 9 Specifications 10 Appendix...

  • Page 4: Introduction

    Contents 1. Introduction ……………………………………………… 1.1 Product Description ………………………………… 1.2 Inverter Knockouts ………………………………… …………………………… 1.3 Wiring Box Interior View 1.4 Packaging …………………………………………… 1.5 Tools Required for Installation ……………………… 1.6 Storage ……………………………………………… 2. Safety Instructions …………………………………… …………………………………… 2.1 Safety Symbols 2.2 General Safety Instructions …………………………...
  • Page 5 Contents 6. Operation ……………………………………………… 6.1 Main Menu ………………………………………… 6.2 Information ……………………………………… 6.3 Settings …………………………………………… 6.4 Advanced Info. ……………………………………… 6.5 Advanced Settings …………………………………… 6.6 ARC Fault …………………………………………… 7. Maintenance …………………………………………… 8. Troubleshooting ………………………………………… 9. Specifications ……………………………………………...

  • Page 6: Introduction

    User Manual 1.1 Product Description Solis single phase US series inverters can invert the DC power from (PV) solar modules into AC power which can support home loads and feed back to the grid. This product manual is valid for the below listed Solis 1φ inverters 1- Solis-1P3.6K-4G-US...
  • Page 7 1. Introduction User Manual 1.1.2 Bottom and Side View DC Switch RS 485 DC input Meter AC input Figure1.2 Bottom view Figure1.3 Side view (Right) and back view (left) of the inverter...

  • Page 8: Inverter Knockouts

    1. Introduction User Manual 1.2 Inverter Knockouts The inverter comes equipped with the following knockouts at the bottom, back and the side of the wiring box, Adding additional knockouts shall void the inverter warranty Location Quantity Size of Conduit Purpose 1 x 3/4"...

  • Page 9: Packaging

    Mounting bracket x1 Manual Inverter x1 Locking screws x1 Manual x1 In case of any damage and missing component, contact Solis US Service team at ussales@solisinverters.com 1.5 Tools Required for Installation Phillips Screwdriver Technician Screwdriver Wire Strippers 12AWG to 6AWG...

  • Page 10: Storage

    Improper use may result in potential electric shock hazards or burns. This manual contains important instructions that should be followed during installation and maintenance. SAVE THESE INSTRUCTIONS – This manual contains important instructions for the following models that shall be followed during installation and maintenance of the inverter Solis-1P3.6K-4G-US Solis-1P5K-4G-US...

  • Page 11: Safety Instructions

    Inverter. The DC OCPD shall be installed per local requirements. All photovoltaic source and output circuit conductors shall have disconnects that comply with the NEC Article 690, Part II. All Solis single phase inverters feature an integrated DC switch.

  • Page 12: Notice For Use

    2. Safety & Warning User Manual CAUTION Risk of electric shock. Do not remove cover. There is no user serviceable parts inside. Refer servicing to qualified and accredited service technicians. CAUTION The PV array (solar panels) supplies a DC voltage when they are exposed to sunlight CAUTION Risk of electric shock from energy stored in capacitors of the inverter.

  • Page 13: Overview

    3. Overview User Manual 3.1 Front Panel Display Figure 3.1 Front Panel Display 3.2 LED Status Indicator Lights There are three LED status indicator lights in the front panel of the inverter. POWER LED (red) indicates the power status of the inverter. OPERATION LED (green) indicates the operation status.

  • Page 14: Keypad

    3. Overview User Manual 3.3 Keypad There are four keys in the front panel of the inverter (from left to right): ESC, UP, DOWN and ENTER keys. The keypad is used for: Scrolling through the inverter menus (the UP and DOWN keys); Access to modify the adjustable settings (the ESC and ENTER keys).

  • Page 15: Installation

    4. Installation User Manual 4.1 Select a Location for the Inverter To select a location for the inverter mounting for safe operation and easy maintenance,the following criteria should be considered: WARNING: Risk of fire Despite careful construction, electrical devices can cause fires. Do not install the inverter in areas containing highly flammable materials or gases.
  • Page 16 4. Installation User Manual It is not recommended that the inverter is installed in living areas to avoid building users to be bothered by inverter noise during opera on. The inverter should be installed in a place that is inaccessible to the children. Install on a wall or strong structure that is capable of bearing the weight.

  • Page 17: Mounting The Inverter

    4. Installation User Manual 4.2 Mounting the Inverter Dimensions of mounting bracket: Figure 4.3 Inverter Wall Mounting Please see Figure 4.4 and Figure 4.5 for instruction on mounting the inverter to a wall. The inverter shall be mounted vertically. The steps to mount the inverter are listed below: 1.
  • Page 18 4. Installation User Manual Figure 4.5 Inverter Pillar Mounting 4. Lift up the inverter (be careful to avoid body strain), and align the back bracket on the inverter with the convex section of the mounting bracket. Hang the inverter on the mounting bracket and ensure the inverter is secure (see Figure 4.5) WARNING The inverter must be mounted vertically.

  • Page 19: Electrical Connections

    4. Installation User Manual 4.3 Electrical Connections Remove the four screws on both sides of the wiring box with the screw driver, then remove the cover. WARNING Only qualified personnel can perform the electrical work. All electrical connections must be terminated in accordance with local and national standards. NOTE Press on the wiring box cover while loosening the screws.
  • Page 20 4. Installation User Manual 4.3.1 Terminal Connections Terminal A Terminal B Figure 4.8 Connection Area of Inverter Strip the end of the wire ” minimum to ” maximum. Use a slotted (technician) screwdriver,insert the screwdriver in Terminal A (top) and insert the wire into Terminal B (bottom) of the spring clamp terminal.
  • Page 21 4. Installation User Manual Cross section Cable type Range Recommended value Industry generic PV cable 4.0mm² 4.0~6.0mm² （model:PV1-F） （12AWG） （12~10AWG） Table 4.1 DC cable size Do not enlarge the existing conduit knockouts or drill hole. Doing so could allow moisture to penetrate the inverter wire box, which could damage electronic components in the inverter and void the warranty.
  • Page 22 User Manual 4.3.3 Connect Grid Side of Inverter The Solis Single Phase inverters can be connected to a 208V or 240V grid. The default setting is for a 240VAC single phase grid. Ground must be connected to the PE terminal.
  • Page 23 4. Installation User Manual 4.3.4 Ground Connection Internal ground connection point Both DC and AC ground cable can be connect to ground terminal in the wiring box, refer to figure 4.10 below. The acceptable wire size for ground is 12AWG to 8 AWG.
  • Page 24 User Manual 4.3.6 Inverter Monitoring Connection The inverter can be monitored remotely if a Solis data logger is installed. Solis data loggers use LAN, WiFi, and cellular communication. All Solis communication devices are optional (Figure 4.9). For connection instructions, please refer to the Solis Monitoring Device installation manuals.
  • Page 25 4. Installation User Manual 4.3.8 Meter Connection(optional) The inverter can work with a split phase smart Solis Acrel meter to achieve Export Power Management function. Below is the connection diagram, for detailed settings please refer to Section 6.5.11. . CT direction...

  • Page 26: Start And Stop

    The red DC POWER LED and LCD will be continuously lit. 3. Solis inverters are powered from the DC side. When the inverter detects DC power that is within start-up and operating ranges, the inverter will turn on. After turn-on, the inverter will check internal parameters, sense and monitor AC voltage, hertz rate and the stability of the grid supply.

  • Page 27: Shutdown Procedure

    NO GRID alarm and the technician may see a Yellow Alarm LED illuminate. The RED Power LED will stay lit until dc power is removed. 2. Turn off the AC Switch between Solis inverter and the Grid to disable AC power to the inverter.

  • Page 28: Operation

    4. Advanced Settings 6.2. Information The Solis single phase inverter main menu provides access to operational data and information. Below list shows is the inverter display information under the “information” sub menu along with the description of each section. The information is displayed by...
  • Page 29 6. Operation User Manual Display Duration Description V_DC1: Shows input 01 voltage value. V_DC1 350.8V 10 sec I_DC1 5.1A I_DC1: Shows input 01 current value. V_DC2: Shows input 02 voltage value. V_DC2 350.8V 10 sec I_DC2 5.1A I_DC2: Shows input 02 current value. V_Grid: Shows the grid's voltage value V_Grid 230.4V 10 sec...
  • Page 30 6. Operation User Manual 6.3. Settings The following submenus are displayed when the Settings menu is selected: 1. Set Time 2. Set Address 6.3.1. Set Time This function allows time and date setting. When this function is selected, the LCD will display a screen as shown in Figure 6.4.
  • Page 31 6. Operation User Manual 6.4. Advanced Info - Technicians Only NOTE: To access to this area is for fully qualified and accredited technicians only. Enter menu “Advanced Info.” and “Advanced settings” (need password). Select “Advanced Info.” from the Main Menu. The screen will require the password as below: YES=<ENT>...
  • Page 32 6. Operation User Manual 6.4.3. Version he screen shows the model version and the software version of the Inverter Model: 08 Software Version: D20001 Figure 6.8 Model Version and Software Version 6.4.4. Daily Energy The function is for checking the energy generation for a selected day. YES=<ENT>...
  • Page 33 6. Operation User Manual 6.4.6. Yearly Energy The function is for checking the energy generation for selected year. YES=<ENT> NO=<ESC> Select: 2020 Figure 6.13 Select year for yearly energy Press DOWN key to move the cursor to day and year, press UP key to change the digit. Press Enter after the date is fixed.
  • Page 34 6. Operation User Manual 6.5 Advanced Settings - Technicians Only Select Advanced Settings from the Main Menu to access the following options: 1. Select Standard 2. Grid ON/OFF 3.Clear Energy 4. Reset Password 5. Power Control 6.Calibrate Energy 7.Special settings 8.STD.
  • Page 35 6. Operation User Manual NOTE The default setting is 240V single phase “UL-240V” or “UL-240V-A”, Otherwise, refer to local requirements. NOTE This function is for technicians use only. Selecting the “User-Def” menu will access to the following submenu (see Figure 6.17). OV-G-V1: 260V →...
  • Page 36 6. Operation User Manual 6.5.2 Grid ON/OFF This function is used to start up or stop the power generation of Solis Single Phase Inverter. Grid ON → Grid OFF Figure 6.18 Set Grid ON/OFF Screens can be scrolled manually by pressing the UP/DOWN keys. Press the ENTER key to save the setting.
  • Page 37 6. Operation User Manual Functions 1-4 are used to set inverter output power and reactive power. With restore means the change will not revert to default after restart. The default setting for functions 1-4 are 100% for output power and 0 for reactive power. Function 5 “select PF curve”...
  • Page 38 6. Operation User Manual NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. 6.5.7.1 Grid Filter Set Press the ENTER key to show the submenu of Grid Filter Set. Press the UP/DOWN key to select the value. Press the ENTER key to save the setting and return to the previous menu.
  • Page 39 6. Operation User Manual 6.5.7.6 MPPT Parallel Mode This is used for parallel strings into different inverter MPPTs. Press enter and press up or down to change the settings(see Figure 6.21). YES=<ENT> NO=<ESC> MPPTParallel: STOP Figure 6.21 MPPT Parallel Set Selecting RUN will enable parallel strings setup.
  • Page 40 6. Operation User Manual 6.5.7.8 V/FRT Set There are 5 option under this setting: The function VRT_US (voltage ride through) and FRT_US (frequency ride through) are used for UL1741SA (see Table 6.2,Table 6.3). Selecting the setting to RUN will enable the inverter grid protection limits of UL 1741 SA requirements.
  • Page 41 6. Operation User Manual 6.5.7.9 IgZero_COMP.Set NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. 6.5.7.10 PI Set NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. 6.5.7.11 IgADCheckPRO Set NOTE This function is for maintenance personnel only, wrong operation...
  • Page 42 6. Operation User Manual Solis US version inverters have Seven working modes: 1. NULL 2. Volt-watt 3. Volt-Var 4. Fixed-PF 5. Reac-power 6. Power-PF 7. VgWatt-UL Based on UL1741SA, working mode 1,3,4,7 can be used by grid operator. 1.NULL Description: Inverter is not under any working mode.
  • Page 43 6. Operation User Manual Default Settings for UL1741SA: Q1: (0-60%) Default +30% Q4: (-60%-0%) Default -30% Rated 240V Grid V1:(192-240V) Default 210V V2: (192-240V) Default 236V V3:(240-288V) Default 243V V4: (240-288V) Default 264V Rated 208V Grid V1:(166-208V) Default 182V V2: (166-208V) Default 205V V3:(208-240V) Default 211V V4: (208-240V) Default 229V Voltage1:210V...
  • Page 44 6. Operation User Manual 6. P-Factor (Not Required) Description: Inverter will change power factor based on changing output power. Note: This Setting is NOT required by UL1741SA Standards. NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. 7.VgWatt-UL Description: Inverter will change the active output power based on voltage change.
  • Page 45 6. Operation User Manual 6.5.8.1.2 With Rule21 Standard selected NOTE The following modes are for "R21P3-480", "R21P3-48A". Solis US version inverters have Ten working modes: 1.NULL 2.Volt-watt 3.Volt-Var 4.Fixed-PF 5.Reac-power 6.Power-PF 7.VgWatt-UL Based on Rule21, working mode 1,2,3,4 can be used by grid operator.
  • Page 46 6. Operation User Manual Default Settings for Rule21 Standards: Rated 240V Grid V1:less than Vstart V2 (Vstart): (240-288V) Default 254V V3 (Vstop): (240-288V) Default 264V V4: larger than Vstop P1:100% P2:100% P3: 0% P4:0% 3. Volt-Var Description: Inverter will change the reactive output power based on voltage change. Q1,cap Q2=Q3=0 Vnom V3...
  • Page 47 6. Operation User Manual under-excited under-excited Q /Pn YES=<ENT> NO=<ESC> -1,0 Power Factor:+1. 00 P/Pn -0,2 over-excited over-excited Figure 6.33 Fixed-PF Figure 6.34 PF Range 5. Reac-Power (Not Required) Description: Inverter will generate reactive power based on changing output power. Note: This Setting is NOT required by Rule21 Standards.
  • Page 48 6. Operation User Manual 8. Enable both Volt-Var and Volt-Watt modes Description: Rule21 requires both Volt-var and Volt-watt modes can be enabled. To set both modes (Volt-var in high priority) Step 1: Select and set Volt-watt mode at first. Step 2: Enter "Working Mode" again and select and set Volt-var mode then. Step 3: To check the priority, a new mode will appear as "V-Q &...
  • Page 49 6. Operation User Manual 6.5.8.2 Power Rate Limit This function is used for changing power ramp up rate. When the inverter initializes or string MPPT changes, the ramp up rate is limited. The default setting is stop (disable). The setting range is from 10% to 600%, This will change the power change rate per minute.
  • Page 50 6. Operation User Manual Over frequency load shedding F start range is 59.936-60.036Hz. The default setting is 60.036Hz. Descending rate: 5%Pn/0.1Hz. F stop range: 61-64Hz. Default setting is 62Hz. Recovery rate: 5%Pn/0.1Hz. Press the Enter key to select the mode or frequency. Press Up/Down to set.
  • Page 51 6. Operation User Manual 6.5.8.7 Voltage PCC Set Set the voltage at the PCC point.This setting is required by RULE 21 requirements. PCC: Point of Common Coupling, the point where a Local EPS is connected to an Area EPS. NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.
  • Page 52 3. Meter in Grid EPM OFF: Functions are disabled Meter in Load: Solis Smart Meter is connected in the load branch circuit. Meter in Grid: Solis Smart Meter is connected in the grid connection point (The backflow power is default as 0W).
  • Page 53 6. Operation User Manual 6.5.11.2 Backflow Power The setting is used to define the allowed export power into the grid. ->Set Backflow Power YES=<ENT> NO=<ESC> Power:-00000W Figure 6.45 Set the backflow power NOTE Positive values indicate the amount of power is allowed to export to the grid.
  • Page 54 6. Operation User Manual 6.5.12 External EPM Set This setting should only be turned on when Solis external EPM device is used. Two options are available 5G-EPM and Others-EPM. ->5G-EPM Others-EPM Figure 6.47 5G-EPM Failsafe Option should be turned ON when 5G series EPM device is used Others-EPM Failsafe Option should be turned ON when 2G series EPM device is used Only one option can be activated each time.

  • Page 55: Arc Fault

    6.6 Arc fault (AFCI version) Solis single phase inverters have a built-in AFCI function which can detect an arc fault within the DC circuit. If the arc fault happens, it can only be removed manually. During normal operation, if arc fault happens in the DC circuit, the inverter will stop...

  • Page 56: Maintenance

    7. Maintenance User Manual Solis single phase inverter does not require any regular maintenance. However, cleaning the dust on the heat sink will help the inverter to dissipate heat and increase its life expectancy. The dust can be removed with a soft brush.

  • Page 57: Troubleshooting

    8. Troubleshooting User Manual The inverter is designed in accordance with the most important international grid-tied standards and safety and electromagnetic compatibility requirements. Before delivering to the customer, the inverter has been subjected to several tests to ensure its optimal operation and reliability.
  • Page 58 8. Troubleshooting User Manual Alarms Cause Solu on Test – DC switch OFF • Check AC at the inverter test points • If AC measures low, adjust lower limit with permission from u lity UN-G-V: Under • Inverter detects grid •...
  • Page 59 8. Troubleshooting User Manual Solu on Alarms Cause Test • Measure DC and AC voltages OV-BUS: DC • Compare with LCD • Inverter detects High BUS voltage is • Replace inverter DCV on internal bus too high • Internal damage •...
  • Page 60 Please keep ready with you the following information before contacting us. 1. Serial number of Solis Single Phase Inverter; 2. The distributor/dealer of Solis Single Phase Inverter (if available); 3. Installation date. 4. The description of problem (i.e. the alarm message displayed on the LCD and the status of the LED status indicator lights.

  • Page 61: Specifications

    9. Specifications User Manual Model Solis-1P3.6K-4G-US Max. input voltage 600V Rated voltage 330V Start-up voltage 120V MPPT voltage range 90-520V Full load MPPT voltage range 169-520V Max. input current 14A/14A Max. short circuit current 22A/22A MPPT number / Max. input strings number Rated output power 3.6kW...
  • Page 62 9. Specifications User Manual Model Solis-1P3.6K-4G-US Cooling concept Natural convection Max. operating altitude 13120 ft (4000 m) UL1741SB, UL1741SA, IEEE 1547-2018, UL1699B, UL1998, Compliance FCC Part15 ClassB, California Rule 21, Heco Rule 14H (pending) NEC 690.12-2020, CAN/CSA C22.2107.1-1. DC connection 1 knockout for 3/4"...
  • Page 63 9. Specifications User Manual Model Solis-1P5K-4G-US Max. input voltage 600V Rated voltage 330V Start-up voltage 120V MPPT voltage range 90-520V Full load MPPT voltage range 228-520V Max. input current 14A/14A Max. short circuit current 22A/22A MPPT number / Max. input strings number Rated output power Max.
  • Page 64 9. Specifications User Manual Model Solis-1P5K-4G-US Cooling concept Natural convection 13120 ft (4000 m) Max. operating altitude UL1741SB, UL1741SA, IEEE 1547-2018, UL1699B, UL1998, Compliance FCC Part15 ClassB, California Rule 21, Heco Rule 14H ( pending NEC 690.12-2020, CAN/CSA C22.2107.1-1. DC connection 1 knockout for 3/4"...
  • Page 65 Manufacturer: Ginlong Technologies Co.,Ltd., Ningbo, Zhejiang, P.R.China US Office: 565 Metro Pl. S. Suite 3214, Dublin OH 43017, USA Toll-free: 866.438.8408 I Email: sales@ginlong.com I ussales@ginlong.com Web: www.ginlong.com Please adhere to the actual products in case of any discrepancies in this user manual. SunSpec Comply with CA Rule 21/ Certified to UL 1741 SA and SB...

This manual is also suitable for:

Solis-1p3.6k-4g-usSolis-1p5k-4g-usSolis-1p3.6k-4g-us-rssSolis-1p5k-4g-us-rssSolis-1p5k-4g-us-apstSolis-1p3.6k-4g-us-apst

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