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Hoymiles HMS-C User Manual

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Open Energy for All
Combiner Box
User Manual
HMS-C
Region: North America
V202406
hoymiles.com

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Summary of Contents for Hoymiles HMS-C

  • Page 1 Open Energy for All Combiner Box User Manual HMS-C Region: North America V202406 hoymiles.com...

  • Page 2: Legal Notice

    However, this manual may be changed and revised due to product enhancements or user feedback. Hoymiles reserves the right to modify this manual without prior notice at any given time. The latest version of this manual can be found by visiting the Hoymiles official website (www.

  • Page 3: Using This Manual

    List (second level) Step 1 ... Steps in a defined order A) ... Steps in a defined order Revision History Issues V202405 Original issue V202406 Updated "6.2 Establishing an Internet Connection” © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 4: Table Of Contents

    8.4 Storaging and Transporting the Combiner Box ....................30 8.5 Disposing of the Combiner Box ..........................30 9. Appendix 1: Installation Map .................... 31 10. Appendix 2: Terms and Abbreviations ................32 © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 5: Important Information

    Please send the Combiner Box back to your installer for repair or replace- ment. • Do not use Hoymiles products in a way that is not suggested by the manufacturer. Otherwise it can cause death, personal injuries, or equipment damage.

  • Page 6: Hoymiles Microinverter System

    2.2 Combiner Box The Hoymiles Combiner Box serves as a central hub in a solar energy system, responsible for power distribution, electricity metering, and system communication. With a Type 3R and UV-resistant enclosure, it is suitable for outdoor installation. It supports a 120/240 V Split-phase grid and accommodates the necessary AC connections for a Hoymiles microinverter system.

  • Page 7: S-Miles Cloud

    Hoymiles Microinverter System 2.3 S-Miles Cloud Hoymiles S-Miles Cloud monitoring platform is a real-time visualized monitoring and management system accessible through mobile devices and web browsers. Its easy-to-use procedure makes it convenient for you to set up and monitor your PV system. After power plant creation, it tracks the real-time output effectiveness of your PV installation.

  • Page 8: Product Introduction

    Combiner Box User Manual Product Introduction 3. Product Introduction 3.1 Appearance and Dimensions Unit: inch / mm 3.2 Interface Layout General Description Communication Module PV Load Center © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 9 PV CT1-1 I1 Power Input (GND) PV CT1-1 I1* Sub-1G Antenna Power Input L1 Ethernet Port Power Input L2 4G Antenna Power Input N 485A Port 485A Port 485B Port 485B Port © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 10 Main Lug Output L1 Main Lug Output L2 Neutral Bar Ground Bar The polarity markings for L1 and L2 at Position 3 and 4 are in reverse order compared to other positions. NOTICE © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 11: System Capacity

    The meter, CTs, and DTU are indispensable for Hoymiles Export Management solution. The meter measures PV output and load consumption, and uploads the data to the S-Miles Cloud, allowing users to track electricity online accordingly.

  • Page 12: Technical Specifications

    (not included), for connecting to the S-Miles Cloud via the internet Mobile connect 4G LTE, for connecting to the S-Miles Cloud via the internet RS485 Support for data transmission using Modbus protocol © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 13 ICES-003 Issue 7 Power Supply UL 508, UL 62368-1 UL 61010-1, UL61010-2-030, FCC CFR 47 part 15 B, Meter CSA-C22.2 NO. 61010-1, CSA-C22.2 # 61010-2-030, ICES-003 Issue 7 Compatibility Microinverter HMS Series Microinverters © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 14: Preparation

    * Note the DTU serial number (SN) on the installation map. Later, you will need to enter the S-Miles Installer App. You can type it in manually or scan the label on the inside of the combiner box's door. Always keep a copy of the installation map for your records. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 15: Installation

    DG Breaker ratings, excluding the pre-installed Communication Module Breaker), if you intend to install additional DG Breakers, you can install up to FIVE DG Breakers. Make sure to follow all NEC and local electrical codes during installation. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 16 C) Remove the filter plate on the dead front for each DG Breaker position to be used. Step 3 Mounting the DG Breaker(s) In the position where you removed the filter plate, snap the DG Breaker onto the PV Load Center. PV Load Center © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 17: Connecting The Circuit Wiring To The Panel

    PV input branch circuit wiring and one on the right for grid output wiring. This example is NOTICE just a reference; you should follow local electrical codes and configure the specific number of holes based on your system’s needs. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 18 5.6 Nm (50 lb-in) Copper conductors only, rated min. 75°C. Follow NFPA 70(NEC), or CSA C22.1 part 1, and all local codes. Table 1 - Recommended Wire Size and Toeque Specifications © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 19: Installing Grid Cts

    The package also includes two Grid CTs (split-core) for grid metering. To install the Grid CTs, create a protected route using conduit for the CT lead wires, running them from the Main Load Center to the Combiner Box. PV CTs Grid CTs © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 20: Energizing The Combiner Box

    White To Grid 5.5 Energizing the Combiner Box Step 1 Installing the Dead Front A) Verify all connections are correct and securely tightened. B) Re-install the dead front. (Torque: 1 N•m) © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 21 Step 4 Locking the Door Put the enclosure key into the door keyholes and turn it clockwise. The door is locked when both keyholes present the figure shown below. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 22: Monitoring Platform Configuration

    B) Open and log in to the S-Miles Installer application using your credentials. C) Tap O&M > Network Config D) Follow the prompts to configure the network connection. DTUP-4122 D)-1 D)-2 D)-3 D)-4 © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 23: Creating Your Power Plant

    In the case of a 4G connection failure, return to O&M Screen. Tap Toolkit > Cloud Communication > Network Config, enter the APN information, and tap Send to DTU. If you do not have the APN information, please contact the Hoymiles technical NOTICE support team.

  • Page 24: Viewing Power Plant Data

    C)-1 Website viewing: A) Log in to the S-Miles Cloud at https://global.hoymiles.com. B) Go to Plant Page, and click Search C) Enter the desired plant name for your search, then click the plant name to move to the plant dashboard.

  • Page 25: Troubleshooting And Replacement

    • If no voltage is measured, replace the probably damaged DG Breaker with a new one. • If there is a voltage of 240 V, check the microinverter's AC End Cable connection at both ends. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 26 The DTU functions normally. Flashing (0.2s gap) DTU warning occurs. Flashing (0.6s gap) Microinverter warning occurs. Flashing (2s gap) Meter warning occurs. Table 3 - Meanings of DTU Indicator Light Status © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 27 A) Follow the instructions in the second row to ensure the DTU is DTU's Wi-Fi network not found The DTU isn't energized. powered on. B) Restart the DTU. © 2024 Hoymiles Power Electronics Inc. All rights reserved.
  • Page 28 (voltage, current, power, etc.) data Analyze the data frame based on read through RS485 communication the communication protocol format. The data frame analysis is wrong. Please pay attention to the endianness (big or small). © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 29: Checking The Microinverter Communication Status

    D) If the signal strength stays weak, use the standby magnetic-mount antenna to enhance the signal. (See 7.3) E) Tap Real-time Data to check the input and output data of the microinverter. E)-1 E)-2 © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 30: Using The Standby Antenna

    C) Connect the antenna to the port and securely screw it in place. Step 3 Checking the Signal Follow the instructions in to check the microinverter communication status. Adjust the antenna position until the signal quality becomes good. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 31: Replacing Devices

    Troubleshooting and Replacement 7.4 Replacing Devices • The replacement of the Combiner Box and devices in it must be carried out by qualified persons only. Hoymiles is not liable for damages resulting from improper installation and use. 7.4.1 Replacing the Combiner Box A) Unlock the door and turn off the DG Breaker(s) and the Communication Module Breaker.
  • Page 32 Please follow the instructions below, otherwise the data on the S-Miles Cloud can be lost. A) Log in to the S-Miles Cloud at https://global.hoymiles.com. B) Go to O&M > DTU > Search, locate the device to be replaced, and click Device Maintenance C) On Device Maintenance Dialogue, click Replace Device.

  • Page 33: Optional Actions And Decommission

    Remove the conduits at the bottom of the enclosure. Remove the DG Breaker(s). K) Install the dead front and lock the Combiner Box's door. L) Unscrew the screws to remove the Combiner Box from the installation surface. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 34: Storaging And Transporting The Combiner Box

    (21.2 lbs. /9.6 kg) and dimensions (19.67’’ × 15.75’’ × 7.87’’ /500 × 400 × 200 mm) of the product. C) Properly seal the package using adhesive tape. D) Discard the package in accordance with local regulations. © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 35: Appendix 1: Installation Map

    Combiner Box User Manual Appendix 1 9. Appendix 1: Installation Map © 2024 Hoymiles Power Electronics Inc. All rights reserved.

  • Page 36: Appendix 2: Terms And Abbreviations

    Appendix 2 10. Appendix 2: Terms and Abbreviations alternating current current transformer direct current distributed generation data transfer unit MPPT maximum power point tracking O&M operations and maintenance photovoltaic serial number © 2024 Hoymiles Power Electronics Inc. All rights reserved.

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