ABB UNO-DM-1.2-TL-PLUS User manual

ABB solar inverters
Product Manual
UNO-DM-1.2/2.0/3.0/3.3/4.0/4.6/5.0-TL-PLUS
(from 1.2 to 5.0 kW)

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General conditions
Before checking the operation of the equipment, it is necessary to have a
thorough knowledge of the Instruments chapter 6 and the functions that
have been enabled in the installation process.
The equipment operates automatically without the aid of an operator;
the operating state should be controlled through the equipment’s
instrumentation.
The interpretation or variation of some data is reserved exclusively for specialized and
qualied staff.
The input voltage must not exceed the maximum values shown in the technical data, section
2 in order to avoid damaging the equipment.
Consult the technical data for further details.
During operation, check that the environmental and storage conditions
are correct (see installation chapter 5).
Make sure that environmental and storage conditions have not changed
over time and that the equipment is not exposed to adverse weather
conditions.
7
Operation

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7 - Operation
Commissioning (Via web user interface)
Do not place objects of any kind on the inverter during operation! Do not touch the heat sink
while the inverter is operating! Some parts may be very hot and could cause burns.
Before proceeding with commissioning, make sure you have carried out all the checks and
verications indicated in the section on preliminary checks.
Commissioning is carried out via wireless connection to the inverter’s
internal web user interface. Initial setup of the system must therefore be
carried out via a tablet, notebook or smartphone with a wireless connec-
tion.
• Close the DC disconnect switch to supply the inverter with input voltage
from the photovoltaic generator.
Make sure irradiation is stable and adequate for the inverter commissioning procedure to be
completed.
Pre-commissionig phase 1 - Connection to the local Wi-Fi network
DEVICE USED TABLET/SMARTPHONE:
• Once the inverter is powered, launch a QR reader for mobile and SCAN
the QR code Cmarked with symbol content on the “Wireless
Identication Label” (placed on the side of the inverter or applied during
the commissioning phase to the quick installation guide on cover page)
• Connect to inverter network (tap connect).
The name of the wireless network created by the system that the con-
nection should be established with, will be: ABB-XX-XX-XX-XX-XX-XX
where “X” is a hex digit of the wireless MAC address A(MAC address
can be found on the “Wireless Identication Label” placed on the side
of the inverter or applied during the commissioning phase to the quick
installation guide on cover page).
• After this step wait 10 seconds to allow the WLAN connection
DEVICE USED LAPTOP:
• Enable the wireless connection on the laptop which is being used for the
board setup and connect it to the Access Point created by the inverter sy-
stem: the name of the wireless network created by the system that the
connection should be established with, will be: ABB-XX-XX-XX-XX-XX-XX
where “X” is a hex digit of the wireless MAC address A(MAC address
can be found on the “Wireless Identication Label” placed on the side
of the inverter or applied during the commissioning phase to the quick
installation guide on cover page).
• When prompted, type the “product key” B(including the dashes.
Example: 1234-1234-1234-1234) as the network password to access
the inverter’s access point. The product key is printed on the “Wireless
Identication Label” placed on the side of the inverter or applied during
the commissioning phase to the quick installation guide on cover page.
SN WLAN: SSSSSSSSSS
PN WLAN: PPP.PPPPP.PP
MAC: XX:XX:XX:XX:XX:XX
SN Inverter: SSSSSSSSSS
MAC: XX:XX:XX:XX:XX:XX
PK: KKKK-KKKK-KKKK-KKKK
Remove and apply
on the Quick
installaon guide
A
C
B
A

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7 - Operation
Pre-commissionig phase 2 - Internal web UI access
DEVICE USED TABLET/SMARTPHONE:
• SCAN this QR code (it is also reported in the Quick installation guide
and in the pre-commissioning yer inside the box of the inverter).
DEVICE USED LAPTOP:
• Open an internet browser (reccomended browser: Chrome versions
from v.55, Firefox versions from v.50) and enter the pre-set IP address
192.168.117.1 to access the setup pages (web user interface).
STEP BY STEP COMMISSIONING WIZARD:
The language of the wizard could be changed by clicking on the upper status bar
STEP 1 - Administrator/User login credentials
- Set the Administrator account user and pas-
sword (minimum 8 character for password):
Administrator account can open and view the contents
of photovoltaic site. Additionally, they can make changes
to inverter settings. User and password are CASE SEN-
SITIVE.
-
Set the User account user and (optional) pas-
sword (minimum 8 character for password):
User account can only read data. It cannot make any
changes. User and password are CASE SENSITIVE.

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7 - Operation
STEP 2 (Optional) - Residential wireless network connection.
The inverter WLAN board can operate in two different operating modes:
“Station Mode” or “Access Point Mode” (also known as “AP Mode”)
• “AP mode”: Only local communication is enabled in this mode; In
particular, the WLAN board acts like an «access point» generating a
wireless network to which the user can connect locally, to monitor or
congure the inverter / photovoltaic system, using the direct access
to the Internal Web user interface integrated in the WLAN board
“ACCESS POINT MODE” COMMUNICATION
Internet web
Browser
Internal Webserver
User Interface
Direct Access
• “Station Mode”: In this operating mode, not only local but also remote
monitoring is enabled through access to the LAN connection or
through the Aurora Vision®CLOUD platform.
“STATION MODE” COMMUNICATION
Aurora Vision™
Internet web
Browser
Internal Webserver
User Interface
Wireless
Router
CLOUD
Where possible, connecting the inverter in “Station Mode” is always preferable. Thanks to the
internet connection, this mode ensures better operation.
This setup stage relates to connecting the inverter to the own residential
wireless network.
If it is not possible to connect the inverter to the wireless network, or you
do not want to do so, select the “Skip this step” button. In this situation,
communication between the inverter and the tablet/smartphone/PC can
be only perfomed with a point to point (“AP Mode”) connection.

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The parameters relating to the home wireless network (set
on the router) that must be known and set during this step
are:
-
IP Settings: DHCP or Static.
If you select the DHCP function (default setup) the rou-
ter will automatically assign a dynamic IP address to the
inverter whenever it tries to connect to the user network.
With Static, the user can assign a xed IP address to
the system. The data which has to be entered in order
for IP static address assigning to take place will appear.
Complete the additional elds at the bottom of the scre-
en (all the elds are mandatory with the exception of the
secondary DNS server).
-
Available networks (SSID):.
Identify and select your own (home) wireless net-
work from all those shown in the SSID eld (you
can carry out a new search of the networks that
can be detected with the Update button ).
Once the network has been selected, conrm.
-
Password: Wireless network password.
Enter the password for the destination network (if neces-
sary) and start the connection attempt (it will take a few
seconds).
Click on “Connect” button to connect the inverter to the
home wireless network.
A message will ask for conrmation. Click “Next” to con-
nect the inverter to the home wireless network.

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7 - Operation
Once the inverter is connected to the domestic wireless
network, a new message will conrm that the connection
is acquired.
The message provides the IP Address assigned by the
home wireless network router to the inverter that can be
used each time you want to access the internal web user
interface with the inverter connected to the home wireless
network. Take note of it.
Click on “Next” button to proceed to the next stage of the
conguration wizard.
The IP address assigned may vary for reasons connected to the wireless home router setup
(for example, a very brief DHCP lease time). If verication of the address is required, it is
usually possible to obtain the client list (and the corresponding IP addresses) from the wireless
router administration panel.
If the inverter loses the connection with the home wireless
network (and therefore, loses the internet connection), it
will once again enable its own access point.
The most common causes of losing connectivity might be: different wireless network pas-
sword, faulty or unreachable router, replacement of router (different SSID) without the neces-
sary setting updates.

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7 - Operation
STEP 3 - Date, Time and Time zone
Set the Date, Time and Time zone (The inverter will propo-
se these elds when available).
When it’s not possible for the inverter to detect the time
protocol, these elds have to be manually entered.
Click on “Next” button to proceed to the next stage of the
conguration wizard.

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7 - Operation
STEP 4 - Inverter country standard, Input conguration and Meter
conguration (Dynamic Feed-in Control)
-
Country standard: selection of grid standard:
Set the grid standard of the country in which the inverter
is installed.
From the moment that the grid standard is set, you have 24 hours to make any changes to the
value, after which the “Country Select > Set Std.” functionality is blocked, and the remaining
time will have to be reset in order to have the 24 hours of operation available again in which
to select a new grid standard (follow the procedure “Resetting the remaining time for grid
standard variation” described in the relevant section).
-
Input mode:
(See the relevant section of this manual to know how
set the input mode)
1. Indipendent
2. Parallel
- Meter:
When a meter device is connected to the inverter, it’s
requested to select the meter model:
1. None (where system is installed without meter)
2. REACT-MTR-1PH (single-phase)
3. ABB 1PH (single-phase)
4. ABB 3PH (three-phase)
If a 3PH energy meter (ABB B23, B24) is used in the system as single-phase inverter, it will be
necessary to select ABB 3PH and the phase to which the inverter is connected.

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Once the meter model is selected, additional requested
elds will appear:
- METER PHASE: If the METER is three-phase, the
phase to which the inverter is connected must be
selected. (This eld will appear only if you select
the ABB B23 3PH meter model)
- ENERGY POLICY: set the way in which you want
to manage the energy produced by the PV plant,
choosing from the following:
Management
mode Description
Self
consumption
The system automatically manages po-
wer ows in order to maximise self-con-
sumption. All unused power from dome-
stic loads will feed into the grid. Using the
Load Manager Relay, with the optional
COM KIT, to program a power-on/power-
off of a specic Load is it possible to in-
crease the Self-consumption ratio
Zero injection
The system automatically manages po-
wer ows in order to avoid the injection of
energy to the grid. If the meter is discon-
nected or not working the inverter's output
power is restricted to zero in order to avoid
accidental power feeding to the grid.
Custom
The system automatically manages po-
wer ows in order to avoid feeding the
grid with power greater than:
PDC x Plim
where PDC is the power of the photovoltaic
generator (“PV GENERATOR POWER”
parameter) and Plim is the output power
limit with respect to PDC(%) (“FEED-IN
POWER” parameter).
- PV GENERATOR POWER: Insert the power value
of the photovoltaic system (kWp) installed.
- FEED-IN POWER: Set the percentage AC po-
wer restriction (with reference to the value of the
photovoltaic system (kWp) installed) to be feed into
the grid. This eld can be edited only if the Energy
Policy selected is “Congurable”.
Conrm the settings by clicking “END” and the inverter will
test the meter working (if selected a meter device) and it
will reboot at the nish of test phase.

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7 - Operation
A notication will conrm that the wizard is completed.
• After the wizard is completed, the message “Initializing...Please Wait” is
displayed on the inverter display. Regardless of the input voltage value,
the inverter displays various messages and changes the behaviour of the
“Power” and “Alarm” LEDs
06
:
Input voltage Message on display LED Status Description
Vin < Vstart Waiting Sun Power = Flashing
Alarm = OFF
The input voltage is not sufcient to enable connection
to the grid.
Vin > Vstart Missing Grid Power = Flashing
Alarm = ON
The input voltage is sufcient to enable connection to the
grid: the inverter waits for the grid voltage to be present
to make the parallel connection.
The inverter is powered SOLELY by the voltage generated by the photovoltaic generator: the
presence of grid voltage alone is NOT SUFFICIENT for the inverter to switch on.
• With the inverter in the “Missing Grid” status, close the AC switch down-
stream of the inverter thus applying the grid voltage to the inverter: the
inverter checks the grid voltage, measures the insulation resistance of
the photovoltaic eld with respect to ground and performs other auto-dia-
gnostic checks. During the preliminary checks on the parallel connection
with the grid, the “Power” LED keeps ashing, the “Alarm” and “GFI”
LEDs are off.
• During the check on the grid voltage and the measurement of the in-
sulation resistance, the voltage, grid frequency and insulation resistance
values measured by the inverter are displayed. The inverter ONLY cre-
ates a parallel connection with the grid if the grid and insulation resist-
ance parameters fall within the ranges foreseen by current regulations.
• If the outcome of the preliminary checks on the grid parallel is positive,
the inverter connects to the grid and starts to export power to the grid. The
“Power” LED remains xed on while the “Alarm” and “GFI” LEDs are off.
To address any problems that may occur during the initial stages of operation of the system
and to ensure the inverter remains fully functional, you are advised to check for any rmware
updates in the download area of the website www.abb.com/solarinverters or at https://regi-
stration.abbsolarinverters.com (instructions for registering on the website and updating the
rmware are given in this manual).

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7 - Operation
Commissioning (Using the inverter display)
Do not place objects of any kind on the inverter during operation! Do not touch the heat sink
while the inverter is operating! Some parts may be very hot and could cause burns.
Before proceeding with commissioning, make sure you have carried out all the checks and
verications indicated in the section on preliminary checks.
The procedure for commissioning the inverter consists of the following
steps:
• Close the DC disconnect switch to supply the inverter with the photovol-
taic generator voltage.
If the inverter is equipped with a DC disconnect switch (-S models), set
the DC disconnect switch 16 to the ON position.
• When the inverter is connected to the power supply, the display will
show a guided conguration procedure and the yellow ALARM led is fast
blinking. Press ENTER to set the following:
- Inverter date and time
- Selection of the current input mode: Indipendent or Parallel (See the
relevant section of this manual to know how to set the proper input mode)
- Selection of grid standard (and corresponding display language).
For the list of available grid standards and the relative details, contact ABB.
From the moment that the grid standard is set, you have 24 hours to make any changes to
the value, after which the “System > Settings > Country Select > Set Std.” functionality is blo-
cked, and the remaining time will have to be reset in order to have the 24 hours of operation
available again in which to select a new grid standard (follow the procedure “Resetting the
remaining time for grid standard variation” described in the relevant section).
• After having set the Country Standard (grid standard), the message "Ini-
tializing...Please Wait” is displayed. Regardless of the input voltage value,
the inverter displays various messages and changes the behaviour of the
“Power” and “Alarm” LEDs
06
:
Input voltage Message on display LED Status Description
Vin < Vstart Waiting Sun Power = Flashing
Alarm = OFF
The input voltage is not sufcient to enable connection
to the grid.
Vin > Vstart Missing Grid Power = Flashing
Alarm = ON
The input voltage is sufcient to enable connection to the
grid: the inverter waits for the grid voltage to be present
to make the parallel connection.
Config. Wizard
ENTER to START
Time hh:mm
Date DD MMM YYYY
INPUT MODE
Independent
ENTER
ENTER
GRID=Xxxxxxxx
ENTER

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7 - Operation
The inverter is powered SOLELY by the voltage generated by the photovoltaic generator: the
presence of grid voltage alone is NOT SUFFICIENT for the inverter to switch on.
• With the inverter in the "Missing Grid" status, close the AC switch down-
stream of the inverter thus applying the grid voltage to the inverter: the
inverter checks the grid voltage, measures the insulation resistance of
the photovoltaic eld with respect to ground and performs other auto-dia-
gnostic checks. During the preliminary checks on the parallel connection
with the grid, the “Power” LED keeps ashing, the “Alarm” and “GFI” LEDs
are off.
• During the check on the grid voltage and the measurement of the in-
sulation resistance, the voltage, grid frequency and insulation resistance
values measured by the inverter are displayed. The inverter ONLY cre-
ates a parallel connection with the grid if the grid and insulation resist-
ance parameters fall within the ranges foreseen by current regulations.
• If the outcome of the preliminary checks on the grid parallel is positive,
the inverter connects to the grid and starts to export power to the grid.
The “Power” LED remains xed on while the “Alarm” and “GFI” LEDs are
off.
To address any problems that may occur during the initial stages of operation of the system
and to ensure the inverter remains fully functional, you are advised to check for any rmware
updates in the download area of the website www.abb.com/solarinverters or at https://regi-
stration.abbsolarinverters.com (instructions for registering on the website and updating the
rmware are given in this manual).

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7 - Operation
Power, Alarm, GFI LEDs behaviour
The following table shows all the possible activation combinations of
“Power” “Alarm” and “GFI” LEDs on the LED panel 06 according to the
operating status of the inverter.
LED status Operating state
Power:
Alarm:
GFI:
Firmware programming
The inverter rmware is being programmed
Power:
Alarm:
GFI:
Night mode (inverter automatically switches off)
The inverter is in night time switch-off mode (input voltage less than 70% of the set start-up
voltage).
Power:
Alarm:
GFI:
Inverter initialisation
This is a transitional state due to the verication of the operating conditions. During this stage
the inverter checks that the conditions for connecting to the grid are met.
Power:
Alarm:
GFI:
The inverter is connected and is feeding power into the grid
Normal operation. During this stage, the inverter automatically tracks and analyses the
photovoltaic generator's maximum power point (MPP).
Power:
Alarm:
GFI:
Disconnection from the grid
Indicates no grid voltage. This condition does not allow the inverter to connect to the grid (the
inverter display shows the message "Missing Grid").
Power:
Alarm:
GFI:
Indication of Warning (W message codes) or Error (E message codes)
Indicates that the inverter control system has detected a warning (W) or error (E). The display
shows a message indicating the type of problem found (see Alarm messages).
Power:
Alarm:
GFI:
• Ventilation anomaly
Indicates an anomaly in the operation of the internal ventilation system that could limit output
power at high ambient temperatures.
• Failed association of internal inverter components (after replacement)
Indicates that the installed wiring box (only in the event of a replacement) was already
associated with another inverter and cannot be associated with the new inverter
• Overvoltage surge arresters triggered (where tted)
Indicates that any class II overvoltage surge arresters installed on the AC or DC side have
been triggered
• String protection fuses triggered (where tted)
Indicates that one or more input string protection fuses that may be installed have been
triggered
• Autotest (for Italian grid standards only)
The inverter is performing an Autotest
Power:
Alarm:
GFI:
Anomaly in the insulation system of the photovoltaic generator
Indicates that a leakage to ground from the PV generator has been detected, causing the
inverter to disconnect from the grid.
= LED On
= LED ashing
= LED Off
= Anyone of the conditions described above

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7 - Operation
Specifications on operation of the LEDs
In correspondence to each status of the inverter indicated by the constant
or intermittent lighting of the specic LED, the display 07 also shows
a message identifying the operation which is being carried out or the
defect/anomaly recorded (see specic chapter).
In the case of malfunction it is extremely dangerous to intervene personally to try and eliminate
the defect. The instructions below must be followed scrupulously; if you do not have the
necessary experience and training to intervene safely, please contact a specialist.
LED insulation fault
Interventions after warning of insulation fault
When the GFI LED comes on, rst try to reset the warning by pressing
the multi-function ESC button on the keyboard 08 .
Should the inverter reconnect normally to the grid, the fault was due to
temporary phenomena.
You are advised to have the plant inspected by the installer or a specialist should this
malfunction occur repeatedly.
Should the inverter not reconnect to the grid, isolate it on both the AC and
DC sides (by using the disconnect switches), then contact the installer or
authorised centre to repair the fault in the photovoltaic generator.
COMM, WLAN LEDs behaviour
The following table shows all the possible status of “COMM” and “WLAN”
LEDs on the LED panel 06 according to the operating status of the
wireless board.
LED Description
COMM
(MULTICOLOR)
Operation status of wireless communication line:
Blink Red: Communication error (no communication available)
Green: Communication OK
WLAN
(MULTICOLOR)
Communication type and quality of the wireless communication signal (for
“Station Mode”):
Blink Blue: Wireless board is working in Access Point mode (AP Mode)
OFF: No signal
Blink Red: Low signal strenght
Blink Yellow: Medium signal strenght
Blink Green: High signal strenght

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7 - Operation
Description of the Web user interface
The UNO-DM-TL-PLUS inverters are equipped with an advanced in-
tegrated web user interface and user interface that allow a full access
to all conguration and comissioning parameters from any electronic
device (laptop, tablet and smartphone).
The screenshots shown in this chapter are indicatives and it could be changed without any
notication.
Access to the Web user interface
To access to the web user interface is required to connect a device equip-
ped with wireless connection (such as tablet, laptop or smartphone).
Depending on completion of STEP #2 of the wizard commissioning pha-
se (the inverter was connected to the domestic wireless network (“Sta-
tion Mode”), or this step was skipped) it’s required to follow one of the two
procedures described below:
Connection to the inverter in “Station Mode”
If the inverter was connected to the domestic wireless network, follow
this procedures:
• Enable the wireless connection on the device (tablet, smartphone or
laptop) and connect it to the same wireless network to which the inverter
is connected.
• Open an internet browser (reccomended browser: Chrome versions
from v.55, Firefox versions from v.50) and enter the IP Address assigned
by the router to the inverter, or the “Host Name” (that could be obtained
writing this url: http://ABB-XX-XX-XX-XX-XX-XX.local replacing the
“X” with the hex digits of the wireless MAC address of the inverter (it can
be found on the “Wireless Identication Label” placed on the side of the
inverter or applied during the commissioning phase to the quick installa-
tion guide on cover page)), to access the login page.
In order to use the “Host Name” as an alternative to the dynamic IP address, the Wi-Fi router
to which the board is connected (when operating in “Station Mode”) must provide the Domain
Name System (DNS) service (contact the network administrator for further information regar-
ding the presence or absence of the DNS service in the Wi-Fi router or how to enable it). In this
way, even if the IP address assigned to the inverter should change over time, (dynamic IP), it
will always be possible to use the same “Host Name” which will remain unchanged over time.
Android devices doesn’t allow the use of “Host Name” to access to the web user interface!
The IP address assigned may vary for reasons connected to the wireless home router setup
(for example, a very brief DHCP lease time). If verication of the address is required, it is
usually possible to obtain the client list (and the corresponding IP addresses) from the wire-
less router administration panel.

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7 - Operation
Connection to the inverter in “AP Mode”
If the inverter wasn’t connected to the domestic wireless network, follow
this procedures:
• Enable the wireless connection on the device which is being used for
the board setup (tablet, smartphone or PC) and connect it to the Access
Point created by the inverter system: the name of the wireless network
created by the system that the connection should be established with,
will be:
ABB-XX-XX-XX-XX-XX-XX
where “X” is a hex digit of the wireless MAC address (MAC address can
be found on the “Wireless Identication Label” placed on the side of the
inverter or applied during the commissioning phase to the quick installa-
tion guide on cover page).
• When prompted, type the “product key” (including the dashes. Exam-
ple: 1234-1234-1234-1234) as the network password to access the in-
verter’s access point. The product key is printed on the “wireless identi-
cation label”on the side of the inverter.
• Open an internet browser (reccomended browser: Chrome versions
from v.55, Firefox versions from v.50) and enter the pre-set IP address
192.168.117.1 to access the login page.

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Login page
After you have connected the device to the inverter and you access to
the login page, login with the username and password created during the
commissioning phase.
User and password are CASE SENSITIVE.
If the Password is lost click on “Forgot your password?” to obtain the access to the web user
interface (and it will be possible to change the password) by entering the PRODUCT KEY
(printed on the “Wireless identication label” and applied during the commissioning phase to
the quick installation guide on cover page).
The language of the web user interface could be changed in any moment by clicking on the
right status bar:

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web user interface menu structure
The following screenshots are related from a laptop visualization, may differ from smartphone
or tablet visualization.
The Web user interface is divided in six main sections, available on the
left sidebar:
MAIN: Main section of web user interface dedicated to viewing the sum-
mary informations related the status and the production informations of
the inverter and photovoltaic plant.
SETUP: Section dedicated to AC and DC line parameters congurations.
EVENTS: Section dedicated to viewing Alarms and Warnings event log.
USER: Section dedicated to User management.
NETWORK: Section dedicated to inverter communication settings and
congurations.
TOOLS: Section dedicated to main service tools congurations.
INFORMATION: Section dedicated for general informations about the
embedded web user interface.

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MAIN section
In the MAIN section it’s possible to access the following sub-menus:
• Dashboard
• Status Summary
Dashboard
In the Dashboard sub-menu you can view the main informations re-
lated the status and the production informations of the inverter and
photovoltaic plant and alarm/warning active events.
Status Summary
In the Status Summary sub-menu you can view the detailed informa-
tions related the status and the production informations of the system.