Hoymiles DTU-W100 User manual

Version D-5-1.0 @2019

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 2
DTU-W100
Contents
1. Important Safety Information............................................................................................................................... 3
1.1 Read this First................................................................................................................................................. 3
1.2 Safety Instructions.......................................................................................................................................... 3
1.3 User.................................................................................................................................................................. 3
1.4 Support and Contact Information................................................................................................................. 3
1.5 Other Information............................................................................................................................................ 4
2. About Hoymiles Microinverter System............................................................................................................... 4
2.1 The Microinverter............................................................................................................................................ 4
2.2 The DTU .......................................................................................................................................................... 4
2.3 The Hoymiles Monitoring Server.................................................................................................................. 4
3. DTU Installation..................................................................................................................................................... 5
3.1 System Capacity............................................................................................................................................. 5
3.2 Basic Conditions Required............................................................................................................................ 5
3.3 Dimension........................................................................................................................................................ 5
3.4 Installation Sequence..................................................................................................................................... 6
3.5 DTU Installation Procedure........................................................................................................................... 6
4. Site creation on HMP........................................................................................................................................... 8
5. Customer Login..................................................................................................................................................... 9
6. Complete Installation Map................................................................................................................................... 9
7. Browse the Web Station.................................................................................................................................... 10
8. View Phone APP................................................................................................................................................. 11
9. LED indicator working status description........................................................................................................ 11
10. Troubleshooting................................................................................................................................................ 12
11. Datasheet........................................................................................................................................................... 13

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 3
DTU-W100
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
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.
www.hoymiles.com
Hoymiles customer service center: servi[email protected]
Symbol
Usage
Indicates a hazardous situation that can result in deadly electric shock hazards, other
serious physical injuries, or fire hazards.
Indicates directions which must be fully understood and followed in entirety 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.
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/replacing. Disassembling DTU without Hoymiles’ approval will
invalidate remaining of the warranty period.
Please read all instructions and warnings on the technical specifications carefully.
Do not use Hoymiles products in a way that is not suggested by manufacture. Doing so may
cause death or injury to persons or damage to equipment.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 4
DTU-W100
1.5 Other Information
Product information is subject to change without notice. The user manual will be updated
frequently, and please refer to Hoymiles official website at www.hoymiles.com for the latest
version.
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 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 2.4 G RF,
collecting the operation data of the system. Meanwhile, the DTU connects to the Internet via
router and communicates 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 staff.
The following diagram shows the Hoymiles Microinverter system.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 5
DTU-W100
3. DTU Installation
3.1 System Capacity
The DTU is capable of monitoring up to 99 MI-250/MI-300/MI-350 microinverters or 49
MI-500/MI-600/MI-700 microinverters or 24 MI-1000/MI-1200/MI-1500 microinverters.
3.2 Basic Conditions Required
Before installing the DTU, ensure the site meets the following requirements:
Install close to the router.
Stable Internet reception.
The straight line distance between DTU and Microinverter shall be less than 5 meters.
The location should be 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 is between -20ºC and 55ºC.
3.3 Dimensions

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 6
DTU-W100
3.4 System 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 affect 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:

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 7
DTU-W100
Material
Relative signal range reductions
Wood/Glass
0-10%
Stone/Pressed cardboard
10%-40%
Reinforced concrete (reduction increases with
the 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)
Figure 1
b. If using 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.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 8
DTU-W100
(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.
(5) WiFi Configuration
a. Use your setting device (e.g., smartphone, laptop or tablet) to search the surrounding WiFi
signal, and you can find the DTU’s WiFi named “USR-C210” or “DTUW-XXXXXXXX”
(“XXXXXXXX” is the last eight 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
name and 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 customers who use the enterprise WiFi.
4. Site creation on HMP
a. Install Hoymiles Installer APP by searching “Hoymiles” at the 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 [e-mail] in advance.
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.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 9
DTU-W100
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 the 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 the Installer account.
l. Please click the “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.
5. Customer Login
a. Please download the End User App. You can search “Hoymiles” at the App Store (IOS) or
Play Store (Android).
b. Log in with the Password and User name that has been set up by Installer on the previous
step (Section 6 step e), and press “Login”.
c. Customers will able to view all details once the data start to upload, normally it will need
around 30 minutes for the first data coming through.
d. Customers can also view the Microinverter generating details via accessing the HMP
monitoring platform website at https://world.hoymiles.com.
6. 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 system information of the installation map shown below.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 10
DTU-W100
7. Browse the Web Station
You can view the inverter real-time operating details on the computer web page by accessing
Hoymiles online monitoring platform at https://world.hoymiles.com.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 11
DTU-W100
8. View Phone APP
Download mobile phone APP by search “Hoymiles” at App Store (IOS) or Play Store (Android), log in
with customer/installer account name and password, all installed Microinverters operating details will
be able to view from there.
9. LED indicator working status description
Red Light
Description
Flashes every 1 second
DTU disconnect WiFi
Flashes every 0.5 seconds
DTU disconnect with server
Blue Light
Description
Flashes every 1 second
No ID
Flashes every 0.5 seconds
Received data From server
Green Light
Description
Flashes every 0.5 seconds
The search ID is incomplete
Lights up constantly
Normal
RED+GREEN+BLUE
Description
Each color flashes once every 1 second
Power on
Each color flashes twice every 1 second
Firmware upgrade

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 12
DTU-W100
10. Troubleshooting
Indicator
Status
Description
Solution
Red
LED flash in
Red every 1
second
DTU no ID
inside and
disconnect with
Wi-Fi
Check the distance between router and DTU, if
it's over the range (refer to chapter 3.5 point 2)
Check the distance between router and DTU, if
it's over the range (refer to chapter 3.5 point 2)
Double-check if the house router's password
has been input correctly during the setting
Use other device connect with the house router
and make sure there is an effective reception
Try to connect with the hot spot from the phone
to see if any data is uploading successfully
LED lights
up in Red
constantly
W100 with ID
inside but no
Wi-Fi
connection
LED flashes
in Red
every 0.5
seconds
DTU disconnect
with server
Re-do the configuration
Double-check the Port and server address
inside the DTU (Please contact Hoymiles Tech.
Support team for the correct address)
Blue
LED lights
up in Blue
constantly:
W100 has Wi-Fi
connection but
without ID
inside.
Complete the site creation on APP or Monitoring
platform
Complete networking
LED flashes
in Blue
every 1
second:
No ID
Complete networking
Green
LED lights
up in Green
every 0.5
seconds:
The search ID is
incomplete
Re-locate the DTU to somewhere close to both
router and Microinverter
Note: Network Connection:
1. Connected to Wi-Fi, the blue indicator lights up, and then you can build the power station;
2. Can't connect to Wi-Fi, the indicator lights up as red + blue alternately flashing, and then you
need to connect to Wi-Fi again.

© 2019 Hoymiles Converter Technology Co., Ltd. All rights reserved. 13
DTU-W100
11. Datasheet
Model
DTU-W100
Communication to Microinverter
Communication method
2.4G RF
Communication frequency
2400MHz to 2483.5MHz
Number of channels
5
Maximum distance (open space)
100m
Maximum number of inverters connected
99 panels
Communication to Cloud
WIFI communication standard
802.11b/g/n
Data upload time
15 minutes
Power Supply (Adapter)
Power supply
Adapter with USB port
Adapter input voltage/frequency
100 to 240 V AC / 50 or 60Hz
Adapter output voltage/current
5V / 2A
Power consumption
1.0W (typical), 5W(maximum)
Mechanical Data
Ambient temperature range (°C)
-20°C to 55°C
Size (W×H×D mm)
143mm×33mm×12.5mm
Weight (kG)
0.1
A fixed way
Direct power supply
Indicator light
LED
Others
Standard
EN60950 EN61000-3-2 EN61000-3-3
FCC Part15 Class B / Class C