hoymiles DTU-G100 3rd Gen Single-Phase Microinverter User Manual

hoymiles DTU-G100 3rd Gen Single-Phase Microinverter

Important Safety Information

Read This First
This manual includes important instructions for installing and maintaining the Hoymiles Data Transfer Unit (DTU).

Safety Instructions

• Note that only professionals may install or replace DTU.
• Do not try to repair the DTU without approval from Hoymiles. If the DTU is damaged, send the DTU back to your installer for repairing/replacement. Disassembling the DTU without approval from Hoymiles will invalidate the remaining warranty period.
• Read all instructions and warnings on the technical specifications carefully.
• Do not use Hoymiles products in a way that is not suggested by the manufacturer. Doing so may cause death or injury to persons or damage to the equipment.

User
This manual is intended for use by professional installation and maintenance personnel only.

Support and Contact Information
If you have technical queries concerning our products, contact your system installer or distributor. If further support is required, contact Hoymiles’ support at this link.

• www.hoymiles.com
• Hoymiles Technical Service Center: service@hoymiles.com

Other Information
Product information is subject to change without notice. The user manual will be frequently updated, refer to the Hoymiles official website at www.hoymiles.com for the latest version.

About Hoymiles Microinverter System

The Microinverter
It converts the DC output of solar modules into grid-compliant AC power. It sends the output information of PV panels and the operation data of the microinverters to the DTU, which is the hardware basis of panel-level monitoring.
With conversion efficiency up to 96.7% and MPPT efficiency up to 99.9%, Hoymiles microinverters are among the high-quality microinverters in the world.

The DTU
The DTU is a key component in the Hoymiles microinverter system. It works as the communication gateway between the Hoymiles microinverters and the S-Miles Cloud (Hoymiles Monitoring Platform). The DTU communicates wirelessly with the microinverters via 2.4 GHz Proprietary RF (Nordic), and collects the operation data of the system. Meanwhile, the DTU connects to the Internet via the router and communicates with the S-Miles Cloud (Hoymiles Monitoring Platform). The microinverter system operation data will be uploaded to the S-Miles Cloud (Hoymiles Monitoring Platform) via DTU.

The S-Miles Cloud (Hoymiles Monitoring Platform)
It collects the operation data and status of the microinverters in the system and provides panel-level monitoring for users and maintenance staff. The following diagram shows the operation of the Hoymiles Microinverter System.

DTU Installation

System Capacity
The DTU is capable of monitoring up to 99 single units, 49 2-in-1 units or 24 4-in-1 units. If the communication between the DTU and the microinverters suffers interference caused by installation conditions, the number of PV modules that the DTU can monitor may be reduced.

Basic Conditions Required
Before installing the DTU, make sure that the site meets the following requirements:

• The straight distance between the DTU and the microinverter must be less than 5 meters.
• It should be one meter above the ground and 0.8 meters away from the corner.
• Stable Internet connection.

Environmental requirements for DTU installation:

• Away from dust, liquid, acids, or corrosive gas.
• The temperature should be between -20ºC and 55ºC.

Dimensions

Interface Layout

Local Installation Assistant

The Local Installation Assistant is a new function integrated with the DTU-G100 3rd Gen. Download the Installer App (for installer/distributor use only) before use. The DTU-G100 is improved over the previous generations of DTU product, and is developed with this new function that allows the installer to:

• A. See how many microinverters under this DTU are working properly (and the details for each microinverter) and how many are abnormal (and the details for each microinverter) at a glance through the plant overall inverter status indication.
• B. Add connection status, which displays the signal strength between each microinverter with connected DTU, so that the installer can adjust the DTU installation location accordingly. This function simplifies DTU installation and avoids a second visit for installer due to the poor connections between DTU and certain microinverters.

Note: Refer to the “Hoymiles Local Installation Assistant Technical Note” for more details.

System Installation Sequence

DTU Installation Procedure

1. Install the PV Modules and Microinverters
   Refer to the microinverter’s Manual or Quick Installation Guide for detailed installation steps.

2. Locate the DTU
   The maximum communication distance of Hoymiles DTU is 150 m in open space. The walls, roofs, or other obstacles in between will affect the signal and reduce the communication distance in actual installations.

The range of signal reduction for possible obstacles at the site is shown below:

Reinforced concrete (reduction increases with the

amount of reinforcement)

| 10%-90%
Metal| Up to 100%

Therefore, the DTU must be placed as close to the microinverters as possible at the site to ensure good communication between the DTU and the microinverters.

• Insert SIM Card
  Insert the SIM card into the card slot on the side of the DTU.

• DTU Installation

  • Connect the DTU to the adapter and plug it into the wall socket (Figure 1).
  • If using a power strip, make sure that it is placed at least 1 meter above the ground, and try to install the DTU at a 90 degree angle perpendicular to the ground (Figure 2).
    Figure 2
    Note: Please do not install the DTU directly above metal or concrete to prevent signal interference.

• Start Procedure.
  Once the DTU is powered on, the red, green and blue lights will flash for one second in turns, then the blue light will turn on for 40 seconds to indicate the DTU self-check. After this, the green light will flash until networking is complete.
  Note:

1. Non-professionals must not modify other parameters.
2. The “Reset” button on the DTU shell is only for customers who use the enterprise Wi-Fi.

Site Creation on S-Miles Cloud

• A. Install the Hoymiles Installer App by searching “Hoymiles” at App Store (iOS) or Google Play (Android).
• B. Open the app and log in with your installer account name and password. If you are a new installer with Hoymiles, apply for an installer account from your distributor in advance.
• C. Add Plant, select the “Plant” tab on the bottom, then select “⊕” on the top right side of the page.
• D. Select “Quick” for a single DTU and “Professional” for multiple DTUs.
• E. Fill in the plant details accordingly, and press “Next” after this is complete.
• F. Press “Add DTU SN”, scan the DTU SN (or you can manually input the SN) and press “Next” after this is complete.
• G. Press “Start pairing” and choose the angle and tilt based on the installation site.
• H. Scan the Microinverter SN (or you can manually input the SN) and check the box after completing each SN input. Press “Finish” once all Microinverter SNs have been added.
• I. Disable the Scan function on the top right side and design the layout based on the installation site. Check the box on the top right side, and then select “Next” after completing the design.
• J. Upload a picture of the site and select “Finish” to complete the site creation.
• K. The new site will appear on the plant list in the installer account.
• L. Press the “Networking” button after the plant is created.
• M. Wait about 30 minutes, after which the plant will be displayed as online, and all the Microinverter SNs will be found.

Customer Login

• A. Download the End User App. Search “Hoymiles” at App Store (iOS) or Google Play (Android).
• B. Log in with the password and username that have been set up by installer in the previous step (Section 4 Step B), and press “Login”.
• C. Customers will be able to view all details once the data starts to upload. Normally it will take around 30 minutes for the first data to come through.
• D. Customers can also view the microinverter generating details by accessing the S-Miles Cloud (Hoymiles Monitoring Platform) website at https://world.hoymiles.com.

Complete Installation Map

When the system is energized, and the DTU detects the microinverters, you need to complete the installation map.

• A. Peel the serial number label from the DTU and place it on the installation map.
• B. Complete the system information of the installation map as shown below.

Browse the Web-Based Plant

Log in to your account and browse the web-based plant.

View Phone App

Download the mobile phone app by searching “Hoymiles” at App Store (iOS) or Google Play (Android) and log in with the customer/installer account name and password, after which you will be able to view the operating details of all installed microinverters there.

LED Indicator Working Status Description

Troubleshooting

Red

| LED flashes red every

1 second.

| No SIM Card| •    Check if the SIM card has been correctly

inserted.

LED flashes red every

0.5 seconds.

| ****

DTU disconnected from server

| •    Check if SIM card still has credit.

•    Double-check the port and server address inside the DTU (contact the Hoymiles Technical Service Center for the correct address).

Blue

| ****

LED lights up in blue double-check.

| W100 has a Wi-Fi connection but no SN.| •    Complete the site creation on the Installer App or S-Miles Cloud (Hoymiles Monitoring Platform).

•    Complete networking.

LED flashes blue every

1 second.

| No SN.| •    Complete networking.
Green| LED flashes green

every 0.5 seconds.

| The search SN is

incomplete

| •    Relocate the DTU to somewhere close to both

the router and the microinverter.

Datasheet

Communication to Microinverter
Signal| 2.4 GHz Proprietary RF (Nordic)
Maximum distance (open space)| 150 M
Maximum number of panels connected| 99
Communication to Cloud
GPRS communication| GSM (850/900/1800/1900 MHz)
Data upload Rate| 15 minutes
Power Supply
Type| External adapter with USB port
Adapter input voltage/frequency| AC 100 to 240 V/50 or 60 Hz
Adapter output voltage/current| 5 V/2 A
Power consumption| 1.0 W (Typical), 5 W (Max)
Mechanical Data
Ambient temperature (°C)| -20 to 55
Dimensions (W × H × D mm)| 143 × 33 × 12.5
Weight (kg)| 0.1
---|---
Mounting system| Direct power supply
Display| LED indicator light
Others
Standard| EN 60950 EN 61000-3-2 EN 61000-3-3
FCC Part 15B/15C

© 2021 Hoymiles Power Electronics Inc. All rights reserved.

References

• Open Solar Energy for All | Hoymiles
• Open Energy For All - Hoymiles

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