Hoymiles HYS-LV-USG1 Series User Manual
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Hoymiles HYS-LV-USG1 Series User Manual

Hybrid/ac-coupled inverter
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Open Energy for All
Hybrid/AC-coupled Inverter
USER MANUAL
HYS/HAS-3.8LV-USG1
HYS/HAS-4.8LV-USG1
HYS/HAS-6.0LV-USG1
HYS/HAS-7.6LV-USG1
HYS/HAS-9.6LV-USG1
HYS/HAS-11.5LV-USG1
Region: North America REV2.0
hoymiles.com

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Summary of Contents for Hoymiles HYS-LV-USG1 Series

  • Page 1 Open Energy for All Hybrid/AC-coupled Inverter USER MANUAL HYS/HAS-3.8LV-USG1 HYS/HAS-4.8LV-USG1 HYS/HAS-6.0LV-USG1 HYS/HAS-7.6LV-USG1 HYS/HAS-9.6LV-USG1 HYS/HAS-11.5LV-USG1 Region: North America REV2.0 hoymiles.com...

  • Page 2: Table Of Contents

    3.4.7.2 DI Connection 3.4.7.3 DO Connection 3.4.7.4 External Emergency Power Off Switch Connection (Optional) 3.4.7.5 BMS Connection 3.4.7.6 DTS Connection 3.4.8 Installing the Wiring Box Cover 3.5 Operation 3.5.1 Commissioning 3.5.2 Decommissioning © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 3 3.5.4.2 Import Only Mode 3.5.4.3 Online Setting 4. Troubleshooting 5. Technical Datasheet 5.1 HYS Series Technical Parameters 5.2 HAS Series Technical Parameters Appendix A: Power Quality Response Modes Appendix B: HECO © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 4: Safety Introduction

    Products shall not be disposed as household waste. intergrated PV AFCI Supports Type 1 DC Arc Detection on PV side. TYPE 1 CSA Marking for the United States of America and Canada. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 5: Safety Information

    Safety instructions in this manual cannot cover all precautions that should be taken. Please consider the actual conditions on site when performing operations. Any damage caused by a violation of the safety instructions in this manual shall not be the responsibility of Hoymiles. Symbol...
  • Page 6 Please keep the user manual properly. • The manual contains no instructions for user-serviceable parts. See Warranty for instructions on obtaining service. • If an error occurs, contact your local distributor or qualified electricians. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 7: Product Introduction

    Description LED Indicators DC Switch Rapid Shutdown Switch PV Terminals Communication Port Grounding Bar Battery Terminals AC Terminals Note: (1) Only for HYS-(3.8-11.5)LV-USG1 series inverter (2) Only for HYS-(3.8-11.5)LV-USG1 series inverter © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 8: Product Dimensions

    58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 97 mm/3.82 in Φ: 33.8 mm/1.33 in Φ: 26.6 mm/1.05 in 155 mm/6.1 in 83 mm/3.27 in 440 mm/17.3 in © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 9 58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 97 mm/3.82 in Φ: 33.8 mm/1.33 in Φ: 26.6 mm/1.05 in 155 mm/6.1 in 83 mm/3.27 in 440 mm/17.3 in © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 10 58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 58 mm/2.28 in 97 mm/3.82 in Φ: 33.8 mm/1.33 in Φ: 26.6 mm/1.05 in 155 mm/6.1 in 83 mm/3.27 in 440 mm/17.3 in © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 11: Led Indicators

    1/4 circle LED on – SOC is 0-25%; battery is discharging or in standby COM FAULT 1/4 circle LED blinks – SOC is 0-25%; battery is charging Full circle LEDs off – No BMS communication COM FAULT © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 12 On – Both meter and BMS communications are normal Off – No fault On - A fault occurs FAULT Blink 1 – EPS port overload Blink 2 – ISO/RCD fault Blink 3 – Arc fault © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 13: Protection Circuitry And Controls

    Hybrid/AC-coupled Inverter User Manual 2.4 Protection Circuitry and Controls The Hoymiles HYS-(3.8-11.5)LV-USG1 series inverter is equipped with arc fault circuit breakers (AFCI) and rapid shutdown (RSD) for the protection circuit and control to meet the relevant codes and standards. 2.4.1 AFCI According to 2011 NEC Section 690.11, photovoltaic systems operating at 80 volts DC or greater between...

  • Page 14: Operating Modes

    PV power in the daytime or from the grid during the period of valley electricity price (if allowed). © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 15 (If allowed) Discharge stopped when set SOC is Consuming from grid reached Loads Battery charging Self consuming (PV power generation) 24:00 00:00 standby charging standby discharging standby Power flow of backup mode © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 16: System Diagram

    L2 Wire L2 Wire PV Strings N Wire N Wire Meter PE Wire PE Wire Signal Wire Signal Wire Main Loads Backup Loads Battery To Inverter Meter Port Generator PV Strings Microinverter © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 17 • Please refer to https://www.hoymiles.com for the compatible battery list, and the user should first contact Hoymiles for technical consultation and obtain official confirmation before installing any battery not included in the official published list. • The lead-acid battery is not recommended for general customers as it...

  • Page 18: Unacceptable Diagram

    Single PV cannot be connected to multiple inverters. Neither EPS or on-grid port can be connected to generator directly. Incompatible battery EPS port cannot be connected to grid directly. Incompatible battery cannot be connected to battery port. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 19: Installation Instruction

    Hybrid/AC-coupled Inverter User Manual 3. Installation Instruction 3.1 Packing List Please ensure that none of the components listed below are missing or damaged upon receipt of the hybrid or AC-coupled inverter. HYS-(3.8-11.5)LV-USG1 HAS-(3.8-11.5)LV-USG1 © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 20: Installation Tools

    7. The inverter should be installed at eye level for convenient maintenance. 8. The product label on the inverter should be visible after installation. 9. The inverter should be installed far from flammable materials. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 21: Wall Mounting Steps

    • Mount the inverter on the bracket. Step 5&6 • Tighten the screw with a torque of 1.4 N·m to secure the bracket and the inverter. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 22: Electrical Connection

    4/0 AWG 4/0 AWG Grid L1/L2 80 A 100 A 100 A 4-1 AWG 3-1 AWG 3-1 AWG EPS/GEN L1/L2 40 A 50 A 50 A 10-6 AWG 8-6 AWG 8-6 AWG © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 23: Recommended Cable List

    Hybrid/AC-coupled Inverter User Manual 3.4.2 Recommended Cable List This data is the cable specification recommended by Hoymiles. For proper cable specifications, please refer to local laws and regulations and actual installation. Specification Stripping Length Cable HYS/HAS-3.8LV- HYS/HAS-4.8LV- HYS/HAS-6.0LV- HYS/HAS-3.8/4.8/6.0LV- (90℃/194℉, Copper)

  • Page 24: Opening The Wiring Box Cover

    20 A 20 A 14-6 AWG 14-6 AWG 14-6 AWG Specification Stripping Length Cable (90℃/194℉, Copper) HYS-3.8LV-USG1 HYS-4.8LV-USG1 HYS-6.0LV-USG1 HYS-3.8/4.8/6.0LV-USG1 PV Cable 12 AWG 12 AWG 12 AWG 12 mm/0.47 in © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 25 Insert the PV cables into the terminal, and gently pull the cables backward to ensure Step 2 that they are firmly connected. PV1+ PV1- PV2+ PV2- BATT+ 14 mm (0.55 in) PV1+ PV1- PV2+ PV2- 14 mm (0.55 in) © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 26: Battery Cable Connection

    Do not turn the battery switch on until all cables are properly connected. • The inverter is compatible with specific batteries. For battery models that this inverter supports, please refer to the Hoymiles compatible battery list. NOTICE Recommended Cable Specification Current (90℃/194℉, Copper)

  • Page 27: Ac Cable Connection

    Make sure that the overcurrent protection devices (OCPDs) (breakers) are turned off. • Before proceeding to the next step, make sure that the AC voltages are 0 Vac through a multimeter. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 28 7.6LV-USG1 9.6LV-USG1 11.5LV-USG1 Grid L1/L2 80 A 100 A 100 A 4-1 AWG 3-1 AWG 3-1 AWG EPS/GEN L1/L2 40 A 50 A 50 A 10-6 AWG 8-6 AWG 8-6 AWG © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 29 8-6 AWG Note: • Select the appropriate AC breaker in accordance with local laws and regulations. • The grid-connected PV inverter connected to the GEN port must have overfrequency protection function. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 30: Communication Cable Connection

    Dry contact output. The DO1 can be set to one of the DO1 (NO1, COM1) functions as follows: Earth Fault Alarm, Load Control, and Generator Control. Dry contact output. The DO2 will control the bypass DO2 (NO2, COM2) contactor under certain logic. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 31: Smart Meter And Ct Connection

    Respectively connect meter’s terminals A and B to inverter METER_A and METER_B. CT 1-2 CT 1-1 Grid Utility Meter · Grid Side CT 1-2 CT 1-1 Smart Meter RS485B RS485A Load © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 32 RS485A Note: There is one smart meter in our packing box, and the other needs to be purchased from Hoymiles. The meter address is automatically set. If there are meter communication problems, please check if the address of the PV side meter is set to 1, and the address of the grid side meter is set to 2.
  • Page 33 RS485A Note: There is one smart meter in our packing box, and the other needs to be purchased from Hoymiles. The meter address is automatically set. If there are meter communication problems, please check if the address of the PV side meter is set to 1, and the address of the grid side meter is set to 2.

  • Page 34: Di Connection

    Earth Fault Alarm, Load Control, and Generator Control. The DO2 can control the external bypass contactor if installed. Contactor Contactor COM1 COM1 COM1 COM1 light light buzzer buzzer Inverter Inverter Inverter Inverter Load Load DO1-Load Control DO1-Earth Fault Alarm © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 35: External Emergency Power Off Switch Connection (Optional)

    If the inverter is installed in a place where it is inaccessible to first responders, an external Emergency Power Off (EPO) switch must be installed to manually shut down the system in case of emergency. The external EPO switch is not provided by Hoymiles and should be purchased separately. It must meet the requirements as follows, •...

  • Page 36: Dts Connection

    Thread the cable of an appropriate length through the connector. • Tighten the cable gland. PV1+ PV1- PV2+ PV2- 0.6-0.8 N·m 8-NC 7-NC 6-RX- 5-NC PARA1 4-NC 3-RX+ 2-TX- 1-TX+ 0.8-1.5 N·m 0.5-0.8 N·m © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 37: Installing The Wiring Box Cover

    Improper communication with S-Miles Cloud, but the network is connected. 3.4.8 Installing the Wiring Box Cover Procedure • After the wires are firmly and correctly connected, install the wiring box cover with a T20 screwdriver. 1.2 N·m © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 38: Operation

    Please strictly follow the procedure below. Otherwise, it will cause lethal voltages or unrecoverable damage to the inverter. System Power-off Procedure Step 1 Stop the inverter from working via the Hoymiles App. Step 2 Disconnect the AC breaker between the inverter and the grid. Step 3 (Only for HYS) Rotate the DC switch to “OFF”.

  • Page 39: S-Miles Cloud App

    S-Miles End-user 3.5.3.1 DTS Online Setting 1. Search “Hoymiles” in the App Store (iOS) or the Play Store (Android), or scan the QR code to download the Hoymiles Installer App. 2. Open the app and log in with your installer account and password. For new Hoymiles installers, please apply for an installer account from your distributor in advance.
  • Page 40 5. Check the DTS indicator for a solid blue light, which signifies a successful connection. The network configuration takes about 1 minute, please be patient. If the network is not connected, please check the internet as instructed. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 41: System Commissioning Of Wireless Access Point (Ap) Connection

    2. Tap “Grid Profile Config → ESS Advanced Config → Meter Model” to choose “Two-phase Meter”, and Tap “Save”. 3. Tap “Inverter Management → Battery Setting” to set battery type, BMS protocol, and battery capacity, and tap “Save”. (The default setting is “No battery”.) © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 42 “Self-check” again to confirm that the problem is completely solved. If there is no problem, this interface will display green checkmarks on the right of these items. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 43: Ess Operating Modes Setting

    ESS Operating Mode is only for the United States, Canada, and Mexico. It is to restrict the energy exchange between the Area EPS and the energy storage sub-system (ESS). Hoymiles energy storage system has two ESS operating modes, Export Only Mode and Import Only Mode. The ESS Operating Modes can only be set through S-Miles Cloud Monitoring Platform https://global.hoymiles.com/.
  • Page 44 “Send” button to get a verification code. After you send the request, a single-use verification code will be sent to your E-mail. Enter the verification code and click “Configuration” to complete the setting. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 45 “Command executed”; if you enter the wrong verification code or enter the code beyond 5 minutes, this page will display “pvm.ctl.verification_code_invalid_or_error”. Note that once the Export Only Mode or Import Only Mode is set, it will be locked and cannot be modified. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 46: Troubleshooting

    1. Check the specification and numbers of corresponding The PV voltage is higher than string PV modules. PV Overvoltage the permissible range. 2. If the alarm persists, contact Hoymiles technical support team. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 47 BMS Communication The inverter detects that there 2. Reconnect the BMS communication cable. Fault is a BMS communication fault. 3. If the alarm persists, contact Hoymiles technical support team. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 48 BMS. the battery manufacturer. The inverter detects that there Try to restart the inverter. If the fault persists, contact Relay Self-check Fault is a relay self-check fault. Hoymiles technical support team. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 49: Technical Datasheet

    UL 1741, CSA C22.2 No.107.1, UL 1741 CRD, UL 1741 SB, FCC Part 15 Class B AFCI UL 1699B Software approval UL 1998 (1) Can be achieved only if PV and battery power are sufficient. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 50: Has Series Technical Parameters

    Certifications and Standards Grid connection standard IEEE 1547-2018, IEEE 1547.1-2020, SRD2.0 Safety/EMC standard UL 1741, CSA C22.2 No.107.1, UL 1741 CRD, UL 1741 SB, FCC Part 15 Class B Software approval UL 1998 © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 51: Appendix A: Power Quality Response Modes

    4. H/LFRT The ability of a generating unit or generating plant to stay connected during frequency dips or swells. Frequency range (Hz) Operating mode Minimum time (s) f>62.0 61.2<f≤61.8 Mandatory Operation © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 52 Active power-reactive power Ranges of allowable settings Default settings parameters (P2+0.1 Prated)-Prated Prated 0.4 Prated-0.8 Prated 50%Prated Pmin-(P2-0.1 Prated) 20%Prated P’1 (P’2-0.1 P’rated)-P’min -20%Prated P’2 0.8 P’rated-0.4 P’rated -50%Prated P’3 P’rated-(P’2+0.1 P’rated) -Prated © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 53 Default settings Ranges of allowable settings dbOF, dbUF (Hz) 0.036 0.017 -1.0 kOF, kUF 0.05 0.03-0.05 Response time (small-signal) (s) 1-10 (1): A deadband of less than 0.017 Hz shall be permitted. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 54: Appendix B: Heco

    The ability of a generating unit or generating plant to stay connected during frequency dips or swells. Frequency range (Hz) Operating mode Minimum time (s) f>65.0 63.0<f≤65.0 Mandatory Operation 57.0≤f≤63.0 Continuous Operation Infinite 50.0≤f<57.0 Mandatory Operation f<50.0 © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 55 S-Miles Installer S-Miles End-user Floor 6-10, Building 5, 99 Housheng Road, Gongshu District, Hangzhou 310015 P. R. China +86 571 2805 6101 General inquiry: info@hoymiles.com Technical support: service@hoymiles.com Visit https://www.hoymiles.com/ for more information.

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