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Solenso SG400 User Manual

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User Manual
SG400
SG450
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Summary of Contents for Solenso SG400

  • Page 1 User Manual SG400 SG450 SG500...
  • Page 2 About the Manual This manual contains important instructions for the SG400 / SG450 / SG500 Microinverter and must be read in its entirety before installing or commissioning the equipment. For safety, only qualified technician, who has received training or has demonstrated skils can install and maintain this Microinverter under the guide of this document.

  • Page 3: Table Of Contents

    Contents 1. Important Notes ..............................4 1.1 Product Range ..............................4 1.2 Target Group ..............................4 1.3 Symbols Used ..............................4 2. About Safety ................................4 2.1 Important Safety Instructions ........................4 2.2 Explanation of Symbols ..........................5 2.3 Radio Interference Statement ........................6 3.
  • Page 4 7. Decommissions ..............................22 7.1 Decommissions .............................22 7.2 Storage and Transportation ........................22 7.3 Disposal ................................23 8. Technical Data ..............................23 8.1 DC Input ................................. 23 8.2 AC Output ..............................24 8.3 Efficiency, Safety and Protection ....................... 24 8.4 Mechanical Data ............................24 8.5 Features .................................

  • Page 5: Important Notes

    2. About Safety 2.1 Important Safety Instructions The SG400 / SG450 / SG500 Microinverter is designed and tested according to international safety requirements. However, certain safety precautions must be taken when installing and operating this inverter. The installer must read and follow all instructions, cautions and warnings in this installation...

  • Page 6: Explanation Of Symbols

     Do not use the equipment if any operating anomalies are found. Avoid temporary repairs.  All repairs should be carried out using only qualified spare parts, which must be installed in accordance with their intended use and by a licensed contractor or authorized SOLENSO service representative.

  • Page 7: Radio Interference Statement

    Caution Do not come within 8 inches (20cm) of the microinverter for any length of time while it is in operation. Danger of high voltages Danger to life due to high voltage in the microinverter. Beware of hot surface The inverter can become hot during operation. Avoid contact with metal surfaces during operation.

  • Page 8: About Product

    “The world ’ s First Daisy-Chain 1 in 1 Unit Microinverter ” with extremely wide DC input operating voltage range (22-60V) and low start-up voltage (22V only). SOLENSO 1 in 1 unit Microinverter SG400 / SG450 / SG500 is the perfect selection for PV system with unevennumber of panels with world's NO.1 CEC weighted efficiency- 96.5%.

  • Page 9: Dimension(Mm)

    3.4 Dimension(mm) 4. About Function 4.1 Work Mode Normal: Under this mode, Microinverter is operating normally and converting DC power into AC power to upport the house loads and feed in to Public Grid. Zero Export Control: Under this mode Microinverter’s generation is limited based on the current house loads, there will be no extra power feed in to the Public Grid.

  • Page 10: About Installation

    5. About Installation 5.1 Accessories Description Item M8*25 screws AC Bus Cable, 12/10 AWG Cable (SB36T2G12B) AC Connector Unlock Tool (SFCUT24A) AC Bus End Cap, IP67 (SNEC24B) AC Male Connector (SNMC24B) AC Female Connector (SNFC24B) *Note: All accessories above are not included in the package, and need to be purchased separately. Please contact our sales representative for the price.

  • Page 11: Space Distance Required

    *Note: 1. Make sure the output current and voltage of the solar module matches with the microinverter. 2. The DC working voltage of the solar module must be within the maximum input voltage range of the microinverter. 3. The maximum open-circuit voltage of the solar module must not exceed the maximum input voltage of the microinverter.

  • Page 12: Pre-Installation

    requirement (degree of protection, temperature, humidity, altitude, etc.) To avoid power de-rating due to an increase in the microinverter internal temperature, do not expose it to direct sunlight. To avoid overheating, always make sure the air flow around the inverter is not blocked. Do not install in places where gasses or flammable substances may be present.
  • Page 13 8±1mm 40±5mm Insert the cable slot into the cover and ensure that the L, N, and PE wires are in their correct  positions, then tighten the screws. 8±1mm 40±5mm 2-PE AC Male Connector AC Female Connector  Screw the AC bus end cap.

  • Page 14: Installation Steps

    C) Hang the microinverter on the screw (shown as picture below), and tighten the screw.The silver cover side of the Microinverter should be facing the panel. *Note: Please install the microinverter at least 50cm above the ground/roof for better communication with SOLENSO DT U.
  • Page 15 Step 3. Install AC End Cable Prepare the AC end cable with the proper length, and insert one side of the cable into the cap. Match the L, N and Ground line into the slot accordingly. Tighten the screws, and then tighten the cap back to the port.
  • Page 16 Affix the serial number label to the respective location on the installation map. Step 5. Connect PV Modules Mount the PV modules above the microinverter. B) Connect the PV modules’ DC cables to the DC input side of the microinverter.

  • Page 17: Troubleshooting

    Step 7. Set Up the Monitoring System Refer to the DT U User Manual or DT U Quick Installation Guide, and Quick Installation Guide for SOLENSO Online Registration to install the DT U and set up the monitoring system. 6. Troubleshooting 6.1 Troubleshooting...
  • Page 18 3. If the fault still exists, contact your dealer or SOLENSO technical support. 1.Please make sure that the microinverter works normally. 2.Check the communication status between the DT U and SOLENSO monitoring system or between the DT U and the microinverter.If the Offline communication is poor, try to make some improvements.

  • Page 19: Status Led Indicator

    2. If the alarms occur frequently on all the microinverters in your station, contact the local power operator to check whether there is a grid island. 3. If the alarm still exists, contact your dealer or SOLENSO technical support. 1. Please make sure that the PV module open-circuit voltage is less Input port than or equal to the maximum input voltage.

  • Page 20: On-Site Inspection (For Qualified Installer Only)

    Flashing Red and Green alternately: Firmware is corrupted.  *Note: All the faults are reported to the DT U, refer to the local APP of the DT U or SOLENSO Monitoring Platform for more information. 6.3 On-site Inspection (For qualified installer only) To troubleshoot an inoperable microinverter, follow the steps in the order shown.

  • Page 21: Routine Maintenance

    6. Verify the PV module DC voltage is within the allowable range shown in appendix Technical Data of this manual. 7. If the problem persists, please call SOLENSO customer support. Warning Do not try to repair the microinverter. If the troubleshooting fails, please contact your dealer in a timely manner.

  • Page 22: Replace Microinverter

    If all the microinverters connect to the DT U, the DT U can limit the output power imbalance of all the microinverters between phases to below 3.68kW if required. Please refer to “SOLENSO Technical Note Limit Phase Balance” for more details.

  • Page 23: Decommissions

    7.2 Storage and Transportation SOLENSO packages and protects individual components using suitable means to make the transport and subsequent handling easier. Transportation of the equipment, especially by road, must be carried out by suitable ways for protecting the components (in particular, the electronic components) from violent, shocks, humidity, vibration, etc.

  • Page 24: Disposal

    DC current. But the maximum short circuit current must be equal to or less than the maximum input DC short circuit current. The output DC power of PV module is NOT recommended to exceed 1.35 times the output AC power of the microinverter. Refer to “ SOLENSO Warranty Terms & Conditions” for more information. Input Data（DC） Model...

  • Page 25: Ac Output

    Output Data（AC） Model SG400 SG450 SG500 Rated output power（VA） Nominal output voltage（V） 220/230/240 Nominal output voltage range（V） 230/180-275 Nominal frequency/range（Hz） 50/45-55 ＞0.99 default Power factor （adjustable） 0.8leading-0.8lagging Total harmonic distortion <3% Maximum units per branch（12AWG） 15/15/16 13/14/14 12/12/13 Maximum units per branch（10AWG）...

  • Page 26: Installation Map

    Model SG400 SG450 SG500 VDE-AR-N 4105:2018, EN50549-1:2019, EN50549-10:2022 Compliance VFR2019, AS 4777.2:2015, IEC/EN 62109-1/-2, IEC/EN 61000-3-2/-3, IEC/EN-61000-6-1/-2/-3/-4 *Note: Voltage and frequency ranges can be extended beyond nominal if required by the utility. Appendix 1: Installation Map...

  • Page 27: Wiring Diagram - 230Vac Single Phase

    Appendix 2: WIRING DIAGRAM – 230VAC SINGLE PHASE: *Note: The cable used in the picture is 12 AWG, if you choose 10 AWG, it can be up to a maximum of 17 SG500 per AC branch. Microinverters of different power tiers may be used together.

  • Page 28: Wiring Diagram - 230Vac / 400Vac Three Phase

    WIRING DIAGRAM – 230VAC / 400VAC THREE PHASE: *Note: The cable used in the picture is 12 AWG, if you choose 10 AWG, it can be up to a maximum of 17 SG500 per AC branch. Microinverters of different power tiers may be used together.

  • Page 29: Wiring Diagram-120V/240V Ac Split Phase

    WIRING DIAGRAM-120V/240V AC SPLIT PHASE *Note: The cable used in the picture is 12 AWG, if you choose 10 AWG, it can be up to a maximum of 17 SG500 per AC branch. Microinverters of different power tiers may be used together.

  • Page 30: Wiring Diagram-120V/208V Ac Three Phase

    WIRING DIAGRAM-120V/208V AC THREE PHASE *Note: The cable used in the picture is 12 AWG, if you choose 10 AWG, it can be up to a maximum of 17 SG500 per AC branch. Microinverters of different power tiers may be used together.

This manual is also suitable for:

Sg450Sg500

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