Hoymiles DTU-W100 User manual

DTU-W100
www.hoymiles.com
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User Manual
Data Transfer Unit
(model: DTU-W100)

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Contents
1. Important Safety Information .................................................................................... 3
1.1 Read this First.................................................................................................. 3
1.2 Safety Instructions............................................................................................ 3
1.3 User.................................................................................................................. 4
1.4 Support and Contact Information ..................................................................... 4
1.5 Other Information ............................................................................................. 4
2. About Hoymiles Microinverter System...................................................................... 5
3. DTU Installation........................................................................................................ 6
3.1 System Capacity.............................................................................................. 6
3.2 Basic Conditions Required............................................................................... 6
3.3 Dimension........................................................................................................ 6
3.4 Installation Sequence....................................................................................... 7
3.5 DTU Installation Procedure.............................................................................. 7
1) Install the PV Modules and microinverters................................................... 7
2) Locate the DTU............................................................................................ 7
3) DTU Installation........................................................................................... 8
4) Start Procedure............................................................................................ 8
5) WiFi Configuration....................................................................................... 9
4. Site creation on HMP................................................................................................ 9
5. Customer Login...................................................................................................... 10
6. Complete Installation Map...................................................................................... 11
7. Browse the Web Station......................................................................................... 11
8. View Phone APP.................................................................................................... 12
9. LED indicator working status description................................................................ 13
10. Troubleshooting.................................................................................................... 14
11. Datasheet............................................................................................................. 15

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1. Important Safety Information
1.1 Read this First
This manual includes important instructions for installing and maintaining the Hoymiles Data
Transfer Unit (DTU).
1.2 Safety Instructions
Note that only professionals can install or replace DTU.
Do not try to repair DTU without Hoymiles’ approval. If DTU is damaged, please send the DTU
back to your installer for repairing. Disassembling DTU without Hoymiles’ approval will invalidate
remaining of the warranty period.
Please read all instructions and warnings on the technical specifications and the DTU carefully.
Do not use Hoymiles products in the way that is not suggested by manufacture. Doing so may
cause death or injury to persons, or damage to equipment.
Symbol
Usage
Indicates a hazardous situation that can result in deadly electric shock
hazards, other serious physical injury, or fire hazards.
Indicates directions which must be fully understood and followed in entirety
in order to avoid potential safety hazards including equipment damage or
personal injury.
Indicates this points out that the described operation must not be carried
out. The reader should stop, use caution and fully understand the operations
explained before proceeding.

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1.3 User
This manual is only for professional installation and maintenance personnel to use.
1.4 Support and Contact Information
If you have technical queries concerning our products, please contact your system installer. If
further support is required, contact Hoymiles support at this link.
http://www.hoymiles.com
Hoymiles customer service center:
Email: [e-mail]
1.5 Other Information
Product information is subject to change without notice. User manual will be updated frequently,
please refer to Hoymiles official website at www.hoymiles.com for the latest version.

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2. About Hoymiles Microinverter System
2.1 The Microinverter: It converts the DC output of solar modules into grid-compliant AC power. It
sends the output information details of PV panels and the operation data of the microinverters to
the DTU, which is the hardware basis of the panel-level monitoring.
With conversion efficiency up to 96.7% and MPPT efficiency up to 99.9%, Hoymiles microinverters
rank into the first class of the world’s Microinverter industry.
2.2 The DTU: The DTU is the key component in Hoymiles microinverter system. It works as the
communication gateway, which operates between the Hoymiles microinverters and the Hoymiles
Monitoring Server. The DTU communicates with the microinverter wirelessly via 2.4G RF,
collecting the operation data of the system. Meanwhile, the DTU connects to the Internet via router
or GPRS and communicate with Hoymiles Monitoring Server. The microinverter system operation
data will be uploaded to Hoymiles Monitoring Server via DTU.
2.3 The Hoymiles Monitoring Server: It collects the operation data and status of the
microinverters in the system, and provides the panel-level monitoring for the users and
maintenance staffs.
The following diagram shows the Hoymiles’Microinverter system.

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3. DTU Installation
3.1 System Capacity
The DTU is capable of monitoring up to 99 MI-250/MI-300 microinverters or 49 MI-500/MI-600
microinverters or 24 MI-1000/MI-1200 microinverters.
3.2 Basic Conditions Required
Before installing the DTU, ensure the site meets the followingrequirements:
✓Install close to the router.
✓Stable Internet reception.
✓Straight line distance between DTU and Microinverter shall be less than 5 meters.
✓One meter above the ground,0.8 meters away from the corner.
The environmental requirements for DTU installation:
✓Away from dust, liquid, acidic or corrosive gas.
✓Temperature between -20ºC and 55ºC.
3.3 Dimension

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3.4 Installation Sequence
3.5 DTU Installation Procedure
1) Install the PV Modules and microinverters
Please refer to the Microinverter’s Manual or Quick Installation Guide for the detail installation
steps.
2) Locate the DTU
The maximum communication distance of Hoymiles DTU is 100m in open space. The walls,
roofs or other obstacles in between will effect on the signal and reduce the communication
distance in the real installation.
The range of signal reduction for possible obstacles at the site has been shown below:

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Material
Relative signal range reductions
Wood/Glass
0-10%
Stone/Pressed cardboard
10%-40%
Reinforced concrete (reduction increases
with amount of reinforcement)
10%-90%
Metal
Up to 100%
Therefore, the DTU shall be placed as close to the microinverters as possible at the site to ensure
good communication between DTU and microinverters.
3) DTU Installation
a. Connect the DTU to the adapter and plug it into the wall socket. (Figure 1)
（Figure1）
b. If use Power Strip, please make sure it is placed at least 1 meter above the ground and try to
install the DTU 90 degrees vertical to the ground as much as possible (figure 2).
(Figure 2)
Note：Please do not install the DTU direct above the metal or concrete to prevent the signal
dilution.

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4) Start Procedure
Once the DTU is powered on, the red, green and blue lights will flash every one second in turns
for 30 seconds and then red and blue alternately flashing.
5) WiFi Configuration
a. Use your setting device (e.g. smart phone, laptop or tablet) to search the surrounding WiFi
signal, you can find the DTU’s WiFi named as “USR-C210” or “DTUW-XXXXXXXX”
(“XXXXXXXX” is the last 8 digits from the DTU serial number). Connect with DTU’s WiFi.
b. Open the Internet browser, enter 10.10.100.254 on the address bar, fill in default user name
and password both as “admin”, and click “Ok”.
c. Click “WiFi Setting” on the left side manual bar.
d. Clicking the search button next to the SSID, then select the customer house router’s WiFi
nameand click “Ok”.
e. Enter the house router’s password as “STA Password”, and click “Save”.
f. Click the “Restart” bottom once you see the “Save Success” page.
g. Configuration completed after the Reboot success.
h. Power off the DTU for 10s, and then power on, wait about 2 minutes, DTU light shows
(green and blue) or (blue), it means that DTU is connected to the wireless network. The DTU
will keep searching for the nearby Microinverters’signals at this stage.
Note: (1) non-professionals do not modify other parameters.
(2) The “Reset” button on the DTU shell is only for customer who use the enterprise WiFi.
4. Site creation on HMP
a. Install Hoymiles Installer APP. You can search “Hoymiles” at App Store (IOS) or Play Store
(Android).
b. Open the APP and login in with your installer account name and password. If you are a new
installer with Hoymiles please apply an Installer account from Hoymiles Technical and
Service Support Team at [email protected] in advance.

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c. Add Station, select the “Station” tab on the bottom, then select “⊕” on the right top side of
the page.
d. Select “Quick” for Single-DTU and “Profession” for Multi-DTU.
e. Please fill in the station details accordingly, and press “Next” after completed.
f. Press “Add DTU ID”, scan the DTU ID (or you can manually input ID) and press “Next” after
complete.
g. Click “Start binding” and choose the angle and tilt base on the installation.
h. Scan the Microinverter ID (or you can manually input the ID) and click the tick after
complete each ID input. Press “Finish” once all Microinverter ID has been input.
i. Disable the Scan function on the top of the right hand side and design the Layout base on
the installation. Click the tick box on the top of right hand side, and then select “Next” after
complete 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 Station list from Installer account.
l. Please click “Networking”button after the power station is created.
m. Please wait about 30 minutes, the station will show online and all the MI-IDs are found, the
DTU light will turn green.
5. Customer Login
a. Please download the End User App. You can search “Hoymiles” at App Store (IOS) or Play
Store (Android).
b. Login with the Password and User name that has been set up by Installer on the previous
step (Section 4 step e), and press “Login”.