Ginlong Solis 5G Series User Manual
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Ginlong Solis 5G Series User Manual

Grid inverter
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User Manual
for 5G Series Grid Inverter
Applicable models
Solis-185K-EHV-5G-US
Solis-255K-EHV-5G-US
Solis-125K-EHV-5G-US-PLUS
Solis-185K-EHV-5G-US-PLUS
Solis-255K-EHV-5G-US-PLUS
Version 1.6, Release Date: 11,2022

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Summary of Contents for Ginlong Solis 5G Series

  • Page 1 User Manual for 5G Series Grid Inverter Applicable models Solis-185K-EHV-5G-US Solis-255K-EHV-5G-US Solis-125K-EHV-5G-US-PLUS Solis-185K-EHV-5G-US-PLUS Solis-255K-EHV-5G-US-PLUS Version 1.6, Release Date: 11,2022...
  • Page 2 Important notes ● Product specifications are subject to change without notice. Every attempt has been made to make this document complete, accurate and up-to-date. 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 consequential damages caused by reliance on the material presented including, but not limited to, omissions, typographical errors, arithmetical errors or listing errors in the material provided in this document.
  • Page 3 Table of Contents Introduction Safety Installation Communication Commissioning Settings Maintenance Troubleshooting Specifications 10 Appendix...

  • Page 4: Table Of Contents

    Table of Contents 1. Introduction ………………………………………………………………………………………………………………………………………… 1.1 Product Description ……………………………………………………………………………………………………… 1.2 Front Panel Display ……………………………………………………………………………………………… 1.3 LED Status Indicator Lights ……………………………………………………………………………………………… 1.4 Unpacking ……………………………………………………………………………………………… 1.5 Inverter Circuit Diagram ……………………………………………………………………………………………… 1.6 Tools Required for Installation ……………………………………………………………………………………………… 1.7 Storage ……………………………………………………………………………………………………………… 1.8 Notice for Disposal ………………………………………………………………………………………………………...
  • Page 5 Table of Contents 7. Normal operation …………………………………………………………………………………………………………………………… 7.1 Main Menu ……………………………………………………………………………………………………………………… 7.2 Information ……………………………………………………………………………………………………………………… 7.2.1 Lock screen ……………………………………………………………………………………………………… 7.3 Settings ……………………………………………………………………………………………………………………………… 7.3.1 Set Time …………………………………………………………………………………………………… 7.3.2 Set Address …………………………………………………………………………………………………… 7.4 Advanced Info - Technicians Only …………………………………………………………………………… 7.4.1 Alarm Message …………………………………………………………………………………………………… 7.4.2 Running Message ……………………………………………………………………………………………...

  • Page 6: Introduction

    1. Introduction User Manual 1.1 Product Description Solis Three phase Transformerless Grid Support Utility Interactive PV Inverters convert DC power from the photovoltaic(PV) array into alternating current(AC) power that can satisfy local loads as well as feed into the power distribution grid. This manual covers the three phase inverter models listed below: Solis-185K-EHV-5G-US, Solis-255K-EHV-5G-US, Solis-125K-EHV-5G-US-PLUS, Solis-185K-EHV-5G-US-PLUS, Solis-255K-EHV-5G-US-PLUS...

  • Page 7: Front Panel Display

    1. Introduction User Manual 1.2 Front Panel Display Figure 1.3 Front Panel Display 1.3 LED Status Indicator Lights There are three LED status indicator lights on the front panel of the inverter. POWER LED (red) indicates the power status of the inverter. OPERATION LED (green) indicates the operation status.

  • Page 8: Unpacking

    1. Introduction User Manual 1.4 Unpacking The inverter ships with all accessories in one carton. When unpacking, please verify all the parts listed below are included: Description Part # Quantity Remarks Inverter Mounting Bracket Fastening screw Hexagon bolt M6*12 Fastening screw, hex nut and flat gasket Hexagon bolt M10*40 Staubli Electrical Connectors AG 18,24,28...

  • Page 9: Inverter Circuit Diagram

    1. Introduction User Manual 1.5 Inverter Circuit Diagram Solis-(125-255)KW -EHV-5G-US Three Phase Inverter Current DC Link Inverter Output Sense Switch Filter Module Relay Filter Filter MPPT-1 Filter-1 DC-1 Grid AC EMI Filter Filter- Filter-14 DC-14 MPPT-14 Figure 1.5 Inverter Circuit Diagram 1.6 Tools Required for Installation Wire Strippers Wire Strippers...

  • Page 10: Storage

    1. Introduction User Manual 1.7 Storage If the inverter is not installed immediately, storage instructions and environmental conditions are below: ● Use the original box to repackage the inverter, seal with adhesive tape with the desiccant inside the box. ● Store the inverter in a clean and dry place, free of dust and dirt. The storage temperature must be between 40~176°F and humidity should be between 0 to 95%, non-condensing.

  • Page 11: Safety & Warning

    2. Safety & Warning User Manual 2.1 Safety symbols Safety symbols used in this manual, which highlight potential safety risks and important safety information, are listed below: WARNING Symbol indicates important safety instructions, which if not correctly followed, could result in serious injury or death. NOTE Symbol indicates important safety instructions, which if not correctly followed, could result in damage to or the destruction of the inverter.

  • Page 12: Notice For Use

    2. Safety & Warning User Manual CAUTION The inverter's surface temperature can reach up to 167°F . To avoid risk of burns, do not touch the surface when the inverter is operating. Inverter must be installed out of the reach of children. WARNING The inverter can only accept a PV array as a DC input.

  • Page 13: Installation

    3. Installation User Manual NOTE For additional installation details, watch the installation video in the link below (568) Solis-(215-255)K-EHV-5G inverter Installation video - YouTube 3.1 Environmental considerations 3.1.1 Select a location for the inverter When selecting a location for the inverter, consider the following: WARNING: Risk of fire Despite careful construction, electrical devices can cause fires.

  • Page 14: Other Environmental Considerations

    3. Installation User Manual NOTE Nothing should be stored on or placed against the inverter. 3.1.1.1 Examples of correct and incorrect installations Direct Sun Indoor Shade Cover Shade Cover NEMA 4X Direct Rain Rating Shade Cover Figure 3.1 Recommended Installation locations 3.1.2 Other environmental considerations 3.1.2.1 Consult technical data Consult the specifications section (section 10) for additional environmental conditions...
  • Page 15 3. Installation User Manual ≥24in ≥32in ≥32in ≥24in Figure 3.2 Clearance distances requirement for the inverter ≥32in ≥32in ≥32in ≥40in ≥20in Figure 3.3 Distances required between inverters when multiple inverters are installed...

  • Page 16: Product Handling

    3. Installation User Manual 3.1.2.4 Air circulation Do not install in small, closed rooms where air cannot freely circulate. To prevent overheating, always ensure that the air flow around the inverter is not blocked. 3.1.2.5 Flammable substances Do not install near flammable substances. Maintain a minimum distance of three (3) meters (10 feet) from such substances.
  • Page 17 3. Installation User Manual Figure 3.5 Inverter handles WARNING Due to the weight of the inverter, contusions or bone fractures could occur when incorrectly lifting and mounting the inverter. When mounting the inverter, take the weight of the inverter into consideration. Use a suitable lifting technique when mounting.

  • Page 18: Mounting The Inverter

    3. Installation User Manual 3.3 Mounting the Inverter The inverter can be mounted to the wall or metal array racking. The mounting holes should be consistent with the size of the bracket or the dimensions shown in Figure 3.7. 40.39 38.1 8in) Φ11mm(0.43in)

  • Page 19: Electrical Connections

    3. Installation User Manual 5. Use screws in the packaging to fix the inverter to the mounting bracket. Torque:1.5-2.2 ft.lbs Figure 3.9 Fix the inverter 3.4 Electrical Connections Inverter design uses PV style quick-connect terminal. The top cover does not need be opened during DC electrical connection.

  • Page 20: Grounding

    3. Installation User Manual 3.4.1 Grounding To effectively protect the inverter, two grounding methods must be performed. Connect the AC grounding cable (Please refer to section 3.4.3) Connect the external grounding terminal. To connect the grounding terminal on the heat sink, please follow the steps below: 1.
  • Page 21 3. Installation User Manual NOTE B (insulation stripping length) is 2mm~3mm longer than A (OT cable terminal crimping area) . 4. Insert the stripped wire into the OT terminal crimping area and use the hydraulic clamp to crimp the terminal to the wire. NOTE After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire.

  • Page 22: Connect Pv Side Of Inverter

    3. Installation User Manual 3.4.2 Connect PV side of inverter WARNING Before connecting the inverter, make sure the PV array open circuit voltage is within the limit of the inverter. Otherwise, the inverter could be damaged. WARNING DO NOT connect the PV array positive or PV array negative cable to ground. This can cause serious damage to the inverter! WARNING MAKE SURE the polarity of the PV array output conductors matches...
  • Page 23 3. Installation User Manual 5. Measure the DC voltage of each PV string with multimeter, confirm the polarity of PV strings are correct (see figure 3.17), and ensure each string voltage is in range of inverter operation. Connect DC connector with inverter until hearing a slight clicking sound indicating successful connection.

  • Page 24: Connect Grid Side Of Inverter

    3. Installation User Manual 3.4.2.1 DC connection high voltage danger notice CAUTION RISK OF ELECTRIC SHOCK Do not touch an energized DC conductor. There are high voltages present when PV modules are exposed to light causing a risk of death due to an electric shock from touching a DC conductor! Only connect the DC cables from the PV module to the inverter as described in this manual.
  • Page 25 3. Installation User Manual 3.4.3.1 Aluminum Cable Requirements When Aluminum cable is selected, use copper to aluminum adapter terminal to avoid direct contact between the copper bar and the aluminum cable. When using aluminum/copper wire rated lug, no additional adapters are required. Aluminu m adapter terminal Aluminum adapter...
  • Page 26 3. Installation User Manual 3.4.3.2 Connecting the inverter to the utility grid All electrical installations must be carried out in accordance with the local standards and the National Electrical Code® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1. The AC and DC electric circuits are isolated from the enclosure. If required by section 250 of the National Electrical Code®, ANSI/NFPA 70, the installer is responsible for grounding the system.
  • Page 27 3. Installation User Manual Cable specification Ground wire AC Phase L1-L3 wire Range Conductor gage 2/0- 600kcmil (70~300) 1-2/0 (35~50) AWG/ (mm ) Recommended 300kcmil (150) 2/0 (50) Range 1-3” (26~92) Same Conduit Conduit diameter Inch/ (mm) Same Conduit 2” (50.8) Recommended NOTE Cable ampacity of ground wire should be more than half of cable ampacity...
  • Page 28 3. Installation User Manual Copper terminal of cable flat washer spring washer Figure 3.21 Connecting to AC terminals 3. LOTO the AC breaker disconnect to ensure is does not close unexpectedly. 4. Remove the 3 screws on the inverter junction box and open the junction box cover. Figure 3.22 Remove the junction box cover 5.

  • Page 29: Communication & Monitoring

    4. Comm. & Monitoring User Manual There are 5 communication terminals on the inverters. COM1 is a 4-pin connector reserved for WiFi/Cellular datalogger. 2xRS485 ports are for RS485 communication between inverters. DRM port is for DRM connection. Meter/CT port is reserved for further development. 4.1 RS485 communication connection Monitoring system for multiple inverters Multiple inverters can be monitored through RS-485 daisy chain configuration.

  • Page 30: Plc (Power Line Communication) Connection

    4. Comm. & Monitoring User Manual Figure 4.3 RS485 Cable assembly Figure 4.4 RS485 Inverter cable connection 4.2 PLC ( Power Line Communication) connection PV Strings Inverter Datalogger PLC CCO PV Strings Inverter Transformer Grid PV Strings Inverter RS485 PV Strings Inverter Figure 4.5 Multiple inverter monitoring system (PLC)

  • Page 31: Commissioning

    5. Commissioning User Manual 5.1 Selecting the appropriate grid standard 5.1.1 Verifying grid standard for country of installation Solis inverters are used worldwide and feature preset standards for operating on any grid. Although the grid standard is set at the factory, it is essential the grid standard be verified for the country of installation before commissioning.

  • Page 32: Setting A Custom Grid Standard

    5. Commissioning User Manual 3. Use the UP/DOWN keys to highlight the SELECT STANDARD option. Press enter to select. Select Standard Grid ON/OFF Figure 5.3 4. Select the grid standard for the country of installation. YES=<ENT> NO=<ESC> YES=<ENT> NO=<ESC> Standard:UL-600V Standard:UL-800V Figure 5.4 Press the UP or DOWN key to select the standard.

  • Page 33: Preliminary Checks

    5. Commissioning User Manual 5.4 Preliminary checks WARNING High Voltage. AC and DC measurements should be made only by qualified personnel. 5.4.1 DC Connections Verify DC connections. 1. Lightly tug on each DC cable to ensure it is fully captured in the terminal. 2.

  • Page 34: Ac Configuration

    5. Commissioning User Manual 5.4.3.2.1 Detection of leakage to ground Solis inverters are transformer-less and do not have an array connection to ground. Any measurement of a fixed voltage between ground and either the positive or negative string wiring indicates a leakage (ground fault) to ground and must be corrected prior to energizing the inverter or damage to the inverter may result.

  • Page 35: Start And Shutdown

    6. Start and Shutdown User Manual 6.1 Start-up procedure To start-up the inverter, it is mandatory that the steps below are followed in the exact order outlined. 1. Ensure the commissioning checks in Section 5 have been performed. 2. Switch the AC switch ON. 3.

  • Page 36: Normal Operation

    7. Normal operation User Manual CAUTION Although the inverter DC disconnect switch is in the OFF position and all the LED's are OFF, operators must wait five (5) minutes after the DC power source has been disconnected before opening the inverter cabinet. DC side capacitors can take up to five (5) minutes to dissipate all stored energy.
  • Page 37 7. Normal operation User Manual Display Description Duration V_AB: Shows output voltage between phase A and phase B. V_AB: +000.0V 5 sec I_A: +00.0A I_A: Shows output current of phase A. V_BC: Shows output voltage between phase B and phase C. V_BC: +000.0V 5 sec I_B:...

  • Page 38: Lock Screen

    7. Normal operation User Manual Display Description Duration Work Mode: Shows current working mode. Work Mode: Volt-watt 5 sec DRM NO.:08 DRM NO.: Shows DRM Number. I_DC01 : Shows string 01 current value. I_DC01: +00.0A I_DC02 : Shows string 02 current value. I_DC02: +00.0A 5 sec I_DC28: +00.0A...

  • Page 39: Settings

    7. Normal operation User Manual 7.3 Settings The following submenus are displayed when the Settings menu is selected: 1. Set Time 2. Set Address 7.3.1 Set Time This function allows time and date setting. When this function is selected, the LCD will display a screen as shown in Figure 7.3.

  • Page 40: Advanced Info - Technicians Only

    7. Normal operation User Manual 7.4 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 41: Version

    7. Normal operation User Manual 7.4.3 Version The screen shows the model version of the inverter. And the screen will show the software version by pressing the UP and DOWN at the same time.(see Figure 7.7). Model: 08 Software Version: D20001 Figure 7.7 Model Version and Software Version 7.4.4 Daily Energy The function is for checking the energy generation for a specific date.

  • Page 42: Yearly Energy

    7. Normal operation User Manual 7.4.6 Yearly Energy The function is for checking the energy generation for a specific year. YES=<ENT> NO=<ESC> Select: 2020 Figure 7.12 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 43: Advanced Settings - Technicians Only

    7. Normal operation User Manual 7.5 Advanced Settings - Technicians Only NOTE To access to this area is for fully qualified and accredited technicians only. Please follow 7.4 to enter password to access this menu. Select Advanced Settings from the Main Menu to access the following options: 1.
  • Page 44 7. Normal operation User Manual Setting value 600V Rated (L-L) 600V Rated (L-N) 800V Rated (L-L) 800V Rated (L-N) Vup-Limit1 660<V<720 381<V<415 880<V<960 508<V<553 Time1 Vup-Limit2 V≥720 V≥415 V≥960 V≥553 Time2 0.16S 0.16S 0.16S 0.16S Vdw-Limit1 360≤V<528 207≤V<304 480≤V<704 276≤V<405 Time1 Vdw-Limit2 V<360...

  • Page 45: Grid On/Off

    7. Normal operation User Manual OV-G-V1: 880---960V OV-G-F1: 61-66Hz OV-G-F1-T: 180---1000S OV-G-V1-T: 1---13S OV-G-V2: 880---1040V OV-G-F2: 61.8-66Hz OV-G-F2-T: 0.16---1000S OV-G-V2-T: 0.12S UN-G-F1: 50-59Hz UN-G-V1: 40---704V UN-G-V1-T: 2---50S UN-G-F1-T: 180---1000S UN-G-V2: 40---400V UN-G-F2: 50-57Hz UN-G-V2-T: 0.16---21S UN-G-F2-T: 0.16---1000S Startup-T: 10-600S Restore-T: 59-61Hz Table 7.4 Setting ranges for User-Def (800V for 255K) NOTE The initial value of the User-Def standard is for reference only.

  • Page 46: Clear Energy

    7. Normal operation User Manual 7.5.3 Clear Energy Clear Energy can reset the history yield of inverter NOTE These two functions are applicable by maintenance personnel only, wrong operation will prevent the inverter from working properly. 7.5.4 Reset Password This function is used to set the new password for menu “Advanced info.” and “Advanced information”...

  • Page 47: Calibrate Energy

    7. Normal operation User Manual 7.5.6 Calibrate Energy Maintenance or replacement could clear or cause a different value of total energy. Use this function could allow user to revise the value of total energy to the same value as before. If the monitoring website is used the data will be synchronous with this setting automatically.
  • Page 48 7. Normal operation User Manual 7.5.8.1 Working Mode Set There are TWO situations with different grid standards selected. 7.5.8.1.1 With UL Standard selected Solis US version inverters have Seven working modes: 1. NULL 2. Volt-watt 3. Volt-Var 4. Fixed-PF 5. Reac-power 6.
  • Page 49 7. Normal operation User Manual 3. Volt-Var (Default) Description: Inverter will change the reactive output power based on voltage change. Q1,cap Q2=Q3=0 Vnom Q4,ind Figure 7.22 Volt-VAR curve for Q(V) Default Settings for UL1741SA: Q1: (0-60%) Default +30% Q4: (-60%-0%) Default -30% Rated 600V Grid V1:(480-600V) Default 552V V2: (480-660V) Default 580V...
  • Page 50 7. Normal operation User Manual 4.Fixed-PF Description: Inverter will output power with fixed power factor. Setting Range: -0.8 to +0.8 Default value is PF = 1 under-excited under-excited -1,0 YES=<ENT> NO=<ESC> -0,2 Power Factor:+1.00 over-excited over-excited Figure 7.25 Fixed-PF Figure 7.26 PF Range 5.
  • Page 51 7. Normal operation User Manual 7.VgWatt-UL Description: Inverter will change the active output power based on voltage change. Note: This is the Volt-Watt Setting for UL1741SA Standards. 100% of Input Power AC Volt Vmin Vnom Vstart Vstop Vmax Figure 7.27 Volt-Watt characteristic Default Settings for UL1741SA: Rated 600V Grid V1:less than V2...
  • Page 52 7. Normal operation User Manual 7.5.8.1.2 With Rule21 Standard selected 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. NOTE The other three working mode"P1-V-Watt","P1-V-Var"...
  • Page 53 7. Normal operation User Manual Default Settings for Rule21 Standards: Rated 600V Grid V1:less than Vstart V2 (Vstart): (599-719V) Default 636V V3 (Vstop): (660-779V) Default 660V V4: larger than Vstop P1:100% P2:100% P3: 0% P4:0% Rated 800V Grid V1:(640-800V) Default 736V V2: (800-960V) Default 848V V3:(800-960V) Default 880V V4: (800-960V) Default 920V...
  • Page 54 7. Normal operation User Manual Rated 800V Grid V1:(640-800V) Default 736V V2: (800-960V) Default 848V V3:(800-960V) Default 880V V4: (800-960V) Default 920V P1:100% P2:100% P3: 0% P4:0% Voltage1:0796V Voltage2:0880V Figure 7.33 Volt-VAR 4.Fixed-PF Description: Inverter will output power with fixed power factor. Setting Range: -0.8 to +0.8 Default value is PF = 1 under-excited...
  • Page 55 7. Normal 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 Rule21 Standards. NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. 7.VgWatt-UL (Not Required) Description: Inverter will change the active output power based on voltage change.
  • Page 56 7. Normal operation User Manual To set both modes (Volt-watt in high priority) Step 1: Select and set Volt-var mode at first. Step 2: Enter "Working Mode" again and select and set Volt-watt mode then. Step 3: To check the priority, a new mode will appear as "V-P & V-Q" which indicates (P) Volt-watt is in high priority.
  • Page 57 7. Normal operation User Manual 7.5.8.3 Freq Derate Set This setting is applicable when UL Standards are selected. There are 5 derate modes in this manual. When operating under standard UL 1741 limits, Modes 00 ro 03 are disabled . Mode 04 is used for UL 1741SA frequency derating setting. Mode 08 is used for RULE 21 Freq-Watt setting.
  • Page 58 7. Normal operation User Manual Mode 08 : This setting is used to control real power based on the frequency excursion This setting is applicable when Rule21 Standards are selected. → Start Freq: 60.50Hz WGradient: 040% Figure 7.41 Freq-Watt (1) Start Freq: This is the frequency that active power reduction starts.
  • Page 59 7. Normal operation User Manual 7.5.8.5 Power Priority This setting is used to set the priority between Active Power Control (Watt) and Reactive Power Control (Var). YES=<ENT> NO=<ESC> Select: Var First Figure 7.43 Power Priority Two options are available: Watt First and Var First. NOTE This function is for maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.

  • Page 60: Restore Settings

    7. Normal operation User Manual 7.5.9 Restore Settings There are 5 items in initial setting submenu. Restore setting could set all item in 7.5.7 special setting to default. The screen shows as below: Are you sure? YES=<ENT> NO=<ESC> Figure 7.45 Restore Settings Press the Enter key to save the setting after setting grid off.

  • Page 61: Fan Test

    7. Normal operation User Manual 7.5.12 FAN Test NOTE This section is applicable to maintenance personnel only. Selecting “Fan Test” displays the sub-menu shown below: Are you sure? YES=<ENT> NO=<ESC> Figure 7.47 Fan Test is a factory test function. Press the ENTER key to start the test. Press the ESC key to return to the previous menu.

  • Page 62: I/V Curve

    7. Normal operation User Manual 7.5.15 I/V Curve This function is used to scan the I/V characteristic curves of each PV strings. Set I/V Curve I/V Curve Scan Figure 7.49 I/V Curve 7.5.15.1 Set I/V Curve This setting can set the scanning voltage start point and the voltage interval. 100V 010V Figure 7.50 Set I/V Curve...

  • Page 63: Afci Function

    7. Normal operation User Manual 7.6 AFCI function Solis inverters have the built-in Type 1 Photovoltaic DC Arc-Fault Circuit-Protection which can detect the arc fault on the DC circuit and shut down the inverter to prevent a fire disaster. 7.6.1 Enable the AFCI function The AFCI function can be enabled in the following.

  • Page 64: Maintenance

    8. Maintenance User Manual Solis Three Phase Inverter does not require any regular maintenance. However, cleaning the dust on heat-sink will help the inverter to dissipate the heat and increase its life time. The dust can be removed with a soft brush or vacuum cleaner. CAUTION Do not touch the inverter's surface when it is operating.

  • Page 65: Fan Maintenance

    8. Maintenance User Manual NOTE If you need to maintain the inverter at night, please turn off the AC switch first, then turn off the DC switch, and wait 20 minutes before you do other operations. 8.2 Fan Maintenance If the fan doesn’t work properly, the inverter will not be cooled effectively and it may affect the operation of the inverter.

  • Page 66: Troubleshooting

    9. Troubleshooting User Manual The inverter is designed in accordance with the most important international grid-tie 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 67 9. Troubleshooting User Manual Alarm Message Failure description Solution Initialization system fault INI-FAULT Comm. failure between main DSP-B-FAULT 1.Restart inverter or contact installer. and slave DSP 12Power-FAULT 12V power supply fault 1.Remove all DC input, reconnect and restart inverter one by one. PV ISO-PRO PV isolation protection 2.Identify which string cause the fault and...
  • Page 68 9. Troubleshooting User Manual NOTE Before grid connection, if the string has negative current, it means the voltage between the two strings of one MPPT is unbalanced. One of two string may have more PV panels than another one. NOTE If the inverter displays any alarm message as listed in Table 9.1;...

  • Page 69: Specifications

    10. Specifications User Manual Model Solis-185K-EHV-5G-US Max. DC input voltage (Volts) 1500 Rated DC voltage (Volts) Start-up voltage (Volts) MPPT voltage range (Volts) 570...1500 Full load MPPT voltage range (Volts) 860...1300 Max. input current (Amps) 14x26 Max short circuit input current (Amps) 14x40 MPPT number/Max input strings number 14/28...
  • Page 70 10. Specifications User Manual Model Solis-255K-EHV-5G-US Max. DC input voltage (Volts) 1500 Rated DC voltage (Volts) 1080 Start-up voltage (Volts) MPPT voltage range (Volts) 570...1500 Full load MPPT voltage range (Volts) 860...1300 Max. input current (Amps) 14x26 Max short circuit input current (Amps) 14x40 MPPT number/Max input strings number 14/28...
  • Page 71 10. Specifications User Manual Model Solis-125K-EHV-5G-US-PLUS Max. DC input voltage (Volts) 1500 Rated DC voltage (Volts) Start-up voltage (Volts) MPPT voltage range (Volts) 570...1500 Full load MPPT voltage range (Volts) 860...1300 Max. input current (Amps) 9x30 Max short circuit input current (Amps) 9x50 MPPT number/Max input strings number 9/18...
  • Page 72 10. Specifications User Manual Model Solis-185K-EHV-5G-US-PLUS Max. DC input voltage (Volts) 1500 Rated DC voltage (Volts) Start-up voltage (Volts) MPPT voltage range (Volts) 570...1500 Full load MPPT voltage range (Volts) 860...1300 Max. input current (Amps) 12x30 Max short circuit input current (Amps) 12x50 MPPT number/Max input strings number 12/24...
  • Page 73 10. Specifications User Manual Model Solis-255K-EHV-5G-US-PLUS Max. DC input voltage (Volts) 1500 Rated DC voltage (Volts) 1080 Start-up voltage (Volts) MPPT voltage range (Volts) 570...1500 Full load MPPT voltage range (Volts) 860...1300 Max. input current (Amps) 12x30 Max short circuit input current (Amps) 12x50 MPPT number/Max input strings number 12/24...

  • Page 74: Appendices

    11. Appendices User Manual Torque Parts Cover screws 1.5-1.7 ft.lbs Ground screws (Cover) 4.4-5.9 ft.lbs Ground screws (Internal) 7.4-8.9 ft.lbs AC terminals 17-21 ft.lbs 11.1 Temperature Derating Comments: A thermal sensor inside the inverter is calibrated to determine ambient temperature. All inverters will begin a sloped derate at 30°C ending at 78% output power at 60°C.
  • Page 75 11. Appendices User Manual...
  • Page 76 11. Appendices User Manual 11.2 Input Voltage Derating...
  • Page 77 11. Appendices User Manual 11.3 Output Voltage Derating...
  • Page 78 11. Appendices User Manual...
  • Page 79 11. Appendices User Manual 11.4 P-Q Capabilities at Nominal Output Power...
  • Page 80 11. Appendices User Manual...
  • Page 81 11. Appendices User Manual...
  • Page 82 11. Appendices User Manual 11.5 Default Grid Setting for UL-600-18 Parameter Range Default Description Set grid over-voltage protection 01 value L-L 660 V OV-G-V01 L-L 660-720 V OV-G-V01 L-N 381-415.7 V 381 V Set grid over-voltage protection 01 value L-N 13 S OV-G-V01-T 1-13 S...
  • Page 83 11. Appendices User Manual 11.5 Default Grid Setting for UL-600-18 Parameter Range Default Description Ramp-up Set Ramp-up power slew rate during start-up 100% 0-100% Slew Rate Reconnect 0.10-100% 0.33%V Set Ramp-up power slew rate during reconnect Slew Rate 10 S Volt Watt P3Tau 0.5-60 S Set power rise time for Volt Watt condition...
  • Page 84 11. Appendices User Manual 11.6 Default Grid Setting for UL-800-18 Parameter Range Default Description Set grid over-voltage protection 01 value L-L 880 V OV-G-V01 L-L 880-960 V 13 S OV-G-V01-T Grid over-voltage protection 01 trip time 1-13 S 960 V Set grid over-voltage protection 02 value L-L OV-G-V02 L-L 880-1040 V...
  • Page 85 11. Appendices User Manual 11.6 Default Grid Setting for UL-800-18 Parameter Range Default Description Ramp-up Set Ramp-up power slew rate during start-up 100% 0-100% Slew Rate Reconnect 0.10-100% 0.33%V Set Ramp-up power slew rate during reconnect Slew Rate 10 S Volt Watt P3Tau 0.5-60 S Set power rise time for Volt Watt condition...
  • Page 86 11. Appendices User Manual 11.7 Product Certificate of Compliance...
  • Page 87 11. Appendices User Manual 11.7 Product Certificate of Compliance...
  • Page 88 11. Appendices User Manual 11.7 Product Certificate of Compliance...
  • Page 89 11. Appendices User Manual 11.8 Mechanical Dimension Drawing...
  • Page 90 11. Appendices User Manual 11.9 Medium Voltage Transformer Winding Configuration Compatible Transformer Winding Configuration Inverter Model Dy(n) Y(n)d Y(n)y(n) Solis-125K-EHV-5G-US-PLUS Solis-185K-EHV-5G-US Solis-185K-EHV-5G-US-PLUS Solis-255K-EHV-5G-US Solis-255K-EHV-5G-US-PLUS...
  • Page 91 Manufacturer: Ginlong Technologies Co.,Ltd., Ningbo, Zhejiang, P.R.China Toll-free: 866.438.8408 I Email: sales@ginlong.com I ussales@solisinverters.com usservice@solisinverters.com Web: www.ginlong.com I www.ginlong.com/us Please adhere to the actual products in case of any discrepancies in this user manual. Please record the serial number of your inverter and quote this when you contact us.

This manual is also suitable for:

Solis-185k-ehv-5g-usSolis-255k-ehv-5g-usSolis-125k-ehv-5g-us-plusSolis-185k-ehv-5g-us-plusSolis-255k-ehv-5g-us-plus

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