ABB UNO-DM-3.3-TL-PLUS-US User manual

Before starting installation, download the product manual from www.abb.
com/solarinverters. Choose the correct country, string inverters, single phase,
choose the product and proceed to the “download” section.
Read and follow all safety and installation instructions to avoid disabling any
safety features or making the warranty invalid.
Quick installation guide
UNO-DM-3.3/3.8/4.6/5.0-TL-PLUS-US
(from 3.3 to 5.0 kW)
ABB solar inverters
1.
Labels and Symbols
Inverter Models and Components
2.
EN
Mounting Instructions
4.
Installation location
3.
7.
Input connection (DC)
6.
Rapid Shutdown
5.
Clamps terminal use
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS -- KEEP IN A SAFE PLACE!
The installer must read this document in its entirety before installing or commissioning this equipment.
For more detailed information regarding proper installation and use of this product, refer to the product manual located at www.abb.com/solarinverters. The
labels on the inverter have the markings, main technical data and identication of the equipment and manufacturer. The technical data shown in this quick
installation guide does not replace that shown on the labels attached to the equipment.
Symbols used in the guide and on the products
These are nationally recognized test laboratory marks show-
ing certication to UL 1741 and CSA-C22 No. 107.1-01 øPhase
Hazardous voltage Direct and alternating currents, respectively
General warning - Important safety information + - Positive pole and negative pole of the input voltage (DC)
Hot surfaces
10
Stored energy discharge time
System earth conductor (main grounding protective
earth, PE) Consult product manual
Equipment Grounding Conductor (EGC)
- This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This installation guide covers 4 inverter models of different power levels: 3.3 kW, 3.8 kW, 4.6 kW and 5.0kW.
Main components
01
Display
07
Wall bracket
13
AC output terminal blocks
19
1/2” communication conduit
drill out
02
LED panel
08
Lock spring
14
Wiring box
20
Markings for 3/4” or 1” conduit
drill outs
03
Keypad
09
Heatsink
15
Wi-Fi antenna (-B models only)
21
Opening for 3/4” AC conduit
04
Inverter front cover
10
Accessory board (optional)
16
Protective Earth (PE) connection
point
22
Lock screw position
05
Wiring box front cover
11
Inverter
17
Conduit drill out sizes 3/4”, 1” (drill out
markings on back side)
23
Power supply for rapid shutdown
(RSD) terminal blocks
06
DC disconnect switch
12
DC input terminal blocks
(two MPPT)
18
lower ange
Installation site and position
- Refer Datasheet/Manual to conrm that the environmental specications have been met
- Do not install the inverter in full sun. If needed, use a sun shade to minimize solar
irradiation, especially for temperatures over 104°F/40°C.
- Do not install in closed spaces where air does not circulate freely
- Always ensure that the ow of air around the inverter is not blocked, so as to prevent
overheating.
-Do not install the equipment near ammable substances (minimum distance: 10 ft).
-Do not install the equipment on wooden walls or other ammable substances.
- Do not install in inhabited rooms or where the prolonged presence of people or animals
is expected, because of the inverter’s noise level during operation. The sound level
is heavily inuenced by its location (for example, the surface around the inverter, the
environment, etc.) and grid quality.
- Install on a wall or strong structure capable of bearing weight
- Install vertically with a maximum inclination as indicated in the gure
- Maintain minimum clearance from objects blocking air circulation and spacing betwe-
en inverter as indicated in the gures
- Ensure sufcient working area in front of the inverter for wiring box access
- If possible, install at eye level so that the display and LEDs can be seen easily
- Install at a height that takes account of the weight of the equipment
- Position multiple inverters side-by-side, maintaining minimum clearances
(measured from the outermost edge of the inverter)
- Multiple inverters can also be placed in a staggered arrangement. Minimum
clearances for staggered arrangements include width of the inverter cover
plus additional allowances for inverters arranged above or below
-All installations over 6500’ high (2,000 meters) must be assessed by ABB
Technical Sales to determine the proper datasheet derating
Do not block access to the external AC and DC disconnects.
Please refer to the warranty terms and conditions and avoid voiding the
warranty with improper installation.
Mount the inverter following the step-by-step procedure
below.
Do not remove the inverter chassis cover in
adverse weather conditions (e.g. rain, snow)
or during periods of high humidity (>95%).
Components included in mounting kit QTY
Wall bracket 1
Jumpers for
conguring
paralleled inputs.
1 + 1
Inadditiontowhatisexplainedinthisguide,thesafety and installationinformationprovidedin the installationmanual mustbe readand followed.
Thetechnicaldocumentationandtheinterfaceandmanagementsoftwarefortheproductareavailable at the website.
XXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXX
ABBsolarinverters
Quick installation
guide (QIG) 1
- Position the bracket
07
so that it is level on the wall or pole
- It is the installer’s responsibility to choose an appropriate
number and distribution of attachment points. The
choice must be based on the type of wall, frame or other
support, the type of anchors to be used, and their ability
to support 4 times the inverter’s weight (4x33lbs=132lbs
for all models).
Depending on the type and number of attachment
points, drill the required holes to mount the bracket (see
gure detail
A
)
- Secure the bracket to the wall or frame
- If needed, make conduit cutouts in the wiring box chas-
sis, before the wiring box is put on the wall
- Carefully lift the inverter onto the mounting bracket and
hang the inverter by inserting the two tabs on each side
the bracket into the two slots on the inverter (see gure
detail
B
)
- Then push the lower part of the inverter backwards until
the two little clamps on the lower ange secure the inverter
in place
- Secure the inverter chassis bottom ange to the mounting
surface using another screw (see Figure detail
C
). Note
that the bottom ange is not a load-bearing component.
A
C
B
Conrm the correct polarity in the input strings.
Conrm there is no ground leakage current in the PV array.
When exposed to sunlight, the PV panels supply DC direct voltage to the inverter.
The inverter’s DC switch disconnects the DC current from the PV panels. In the “OFF” position the inverter will stop producing power, but
DOES NOT disconnect the AC from the grid. To prevent electrocution hazards, all the connection operations must be carried out with the
external AC disconnect switch, downstream of the inverter (grid side), open and locked out.
The transformerless design requires that the PV array to be oating with respect to ground per NEC 690.35.
DC PV string wire must be listed PV wire per NEC 690.35 rated minimum 600V.
PV output conductors (wiring) must consist of sheathed (jacketed) multi-conductor cables or single insulated conductors (wires) which
must be installed in an approved raceway. These conductors must be isolated from the enclosure and system grounding, as required by
NEC 690.35. This is the responsibility of the installer.
Conrm that the maximum PV array short circuit current for each DC input channel is within the inverter specication (see table in Section
14). Array equipment grounding must be installed per the requirements of the NEC and is the responsibility of the installer. A conguration
program that can help to correctly size the photovoltaic system is available on at http://www.stringsizer.abb.com.
- Turn the DC switch OFF
- Loosen the four captive screws on the wiring box cover (Torx 20) and remove the cover
- Pass the DC wires through the openings dedicated to the DC conduit.
Conduit must be sealed using water-tight ttings to maintain NEMA Type 4X enclosure integrity.
Installer should follow conduit manufacturers’ guidelines and best practices.
- Connect the DC wiring to DC input terminal blocks
12
. DC wiring terminals are spring pressure type and accommodate a wire size range of 20-8 AWG.
Connect the strings in either independent or parallel mode, following the appropriate set of instructions below:
Independent mode conguration Parallel mode conguration
In case of two PV arrays, if each of them has a current rating lower than the
maximum current rating for a single inverter channel, they may be connected
as “IND” array, each with its own MPPT. In this case, do nothing with the
jumper wires which came with the inverters.
- Connect the positive side of the rst PV array to +IN1, and its negative side to -IN1.
- Connect the positive side of the second PV array to +IN2 and its negative side to -IN2.
Up to four strings can be connected in independent mode.
- During commissioning, conrm that the input mode is set to IND. The input
mode is set using the display menu. Settings>Input Mode>Independent.
If connecting a single array, congure the inverter for parallel input mode.
If a PV array’s output current is more than the rating for a single inverter
channel:
- connect the red jumper wire between the +IN1 and +IN2 terminal block
inputs. Then connect the jumper wire black wire between the -IN1 and -IN2
terminals. Remember later to set the input mode to PAR from the display
(Settings>Input Mode>Parallel).
- Connect the array to the IN1 (MPPT1) and IN2 (MPPT2) input positions,
running separate wires for positive (+) and negative (-) for each array.
CAUTION
ATTENTION
REFER TO LOCAL CODE
FOR WIRE SIZE
FAIRE RÉFERENCE À LA
LÉGISLATION LOCALE POUR
LA DIMENSION DU CABLE
-IN1
+IN1
-IN2
+IN2
-RSD +RSD
MPPT1
String2
MPPT2
String2
MPPT2
String1
MPPT1
String1
CAUTION
ATTENTION
REFER TO LOCAL CODE
FOR WIRE SIZE
FAIRE RÉFERENCE À LA
LÉGISLATION LOCALE POUR
LA DIMENSION DU CABLE
-IN1
+IN1
-IN2
+IN2
PARALLEL
JUMPERS
-RSD +RSD
MPPT2
MPPT1
07
08
09
12
23
10
11
06
13
14
16
21
02
01
04
05
06
03
20
17
19
06
18
22
Bottom view
Front view
Left view Right view
Back view
15
6
in
4 in 4 in
8
in
NO
OK
NO
OK
OKOK
OKOK
OK OK OK
5° MAX5° MAX
NONO
CAUTION
ATTENTION
REFER TO LOCAL CODE
FOR WIRE SIZE
FAIRE RÉFERENCE À LA
LÉGISLATION LOCALE POUR
LA DIMENSION DU CABLE
-IN1
+IN1
-IN2
+IN2
1 2 3
-RSD +RSD
NOTE: If a RSD device was istalled into the plant, it also will needed to connect the AC grid to allow
the inverter to power-up!
The installer must use an external rapid shutdown device compliant with the 2014 NEC.
Automatic shutdown occurs at the rooftop box when utility power is lost or when the PV system’s AC di-
sconnect switch is opened. In jurisdictions requiring a dedicated activation switch, install an emergency stop
button external to the inverter.
The wiring box has 24Vdc (0.4A max) on a spring-loaded terminal block to the left of the PV input area,
which is designed to be used to power a RSD device.
RSD wiring terminals accommodate a wire size range of 26-12 AWG.
- Install RSD device wires in the RSD terminal block;
+24V wire to +RSD terminal; - 24V wire to - RSD terminal
6
in
4 in 4 in
8
in
NO
OK
NO
OK
OKOK
OKOK
OK OK OK
5° MAX5° MAX
NONO
All power conductors will be inserter in spring clamp terminals.
The gure shows an example of how to make the wire connection:
1) Insert a small at screwdriver in the slot and lightly press the screwdriver from top to bottom;
insert the screwdriver until the spring opens.
2) Insert the cable in the spring clamp.
3) Remove the screwdriver.
4) When connections are complete, give each wire a pull test

13.
Grid support functions
11.
AFD (arc fault detection)
10.
Commissioning
9.
User Interface
12.
Response to abnormal conditions
UNO-DM-3.3_3.8_4.6_5.0-TL-PLUS-US-Quick Installation Guide EN-RevD
EFFECTIVE 2017-09-06
© Copyright 2017 ABB. All Rights Reserved.
Specications subject to change without notice.
8.
AC Output connection
Technical Data
14.
Contact us
www.abb.com/solarinverters
The inverter is equipped with advanced grid support functionality that is useful to support reactive loads and also assist in reliable operation of the utility grid in
the presence of a large number of distributed energy generation sources. This section provides an overview of the available grid support functions.
The parameters related to the grid support functions that are in this inverter can be modied by:
- Accessing the embedded Web User Interface.
- Accessing to settings under the Service menu requires a time-limited password, which can be obtained by calling ABB solar inverter technical support at 1-877-261-1374.
1. Voltage ride-through
This inverter provides parameters to respond to undervoltage and overvoltage events. The inverter is designed to operate normally within the specied
operating range. If voltage excursions occur, the inverter is designed to continue operating normally or cease to export power for a specied delay. After this
programmed delay, the inverter disconnects from the grid if the voltage is still out of its normal range. The voltage ride-through parameters can be adjusted.
2. Frequency ride-through
This inverter provides parameters to respond to underfrequency and overfrequency events. If frequency excursions occur, the inverter is designed to continue
operating normally for a specied delay. Beyond this programmed delay, the inverter disconnects from the grid in the event of an abnormal voltage condition.
The frequency ride-through parameters can be adjusted.
3. Reactive power modes
This inverter is designed to export active as well as reactive power into the utility grid. The inverter provides several modes of operation for reactive power
control and are described below:
- Disable: This is the default setting. Under this setting, the inverter exports with a power factor of 1.0.
- Fixed power factor control (Fixed cos-phi): In this mode, the operator can set the output power factor to a xed value. When enabled, Set percentage will
appear on the display, allowing the setting of the value of Cos-Phi as a percentage from 0.1 to 100.
- Power factor as function of output power (Std cosphi 0.9): In this mode, the inverter reduces the output power as a function of the output power at a given operating point.
- Dynamic Volt/VAR control (Std Q(U)): In this mode, the level of reactive power exported by the inverter is a function of the operating grid voltage, also
known as a Volt/VAR curve.
4. Power reduction
This inverter has two modes for active power reduction:
- Power limitation: When enabled, this mode limits the active power that the inverter can export to the grid. The setting is specied as a percentage of the
rated power of the inverter, from 0% to 100% in steps of 1%.
- Frequency/Watt function (Set F Derating): In this mode, the inverter limits the active power as a function of the grid frequency. The default frequency/watt
can be adjusted.
5. Ramp controls
The inverter is designed to control the rate at which output power is increased, either at startup, or after a temporary low power condition on the PV array
(such as fast shading). The following ramp controls are provided on this inverter.
- Normal ramp: The normal ramp denes the maximum rate at which the inverter can increase the output power under normal operation. The normal ramp
control limits the dramatic uctuations in the output power in order to prevent instabilities on the utility grid. The normal ramp rate can be adjusted.
- Slow ramp: The soft-start ramp denes the maximum rate at which the inverter can increase the output power when the inverter is rst starting up. This
startup may occur on a daily basis or when the inverter restarts after an abnormal grid event has ended.
Refer to the dedicaterd application note in the ABB Solar website for more details about the grid support functions.
The DC AFD fault circuit interrupter automatically runs a self test every morning when sunlight is sufcient for connection. The inverter display area shows the
results of the selftest:
- If the self-test results are OK, the inverter will continue with the AC grid connection.
- If a potential problem on the Arc Fault Detection (AFD) board is detected, the self-test will result in an error.
Press the ESC key to clear the error and start the restart selftest. If self-test results are OK, the inverter will reconnect to the AC grid.
If the DC arc fault is still present, the self test will result in error code E050.
Refer to the product manual which must be downloaded at www.abb.com/solarinverters for troubleshooting suggestions.
- During normal operation, the input current is continually measured and analyzed.
- If a DC arc fault is detected, the inverter is disconnected from the AC grid and error E050 will be displayed.
The AFD self-test can be manually started anytime using the following procedure:
1. Turn off the inverter (switching off both DC and AC switches) and,
2. Turn on both the DC and AC switches and wait for the self-test results on the display.
Test Arc Sensor
OK
Test Arc Sensor
E053
Test Arc Sensor
E050
To prevent electrocution hazards, open and lock out the external AC disconnect switch before connecting the AC conductors, and any
time the AC wiring box cover is to be removed. Proper PPE is required.
AC output overcurrent protection is not provided with the inverter; it is the responsibility of the end user to provide overcurrent protec-
tion for the AC output circuit. To reduce the risk of re, connect only to a circuit provided with an overcurrent protection in accordance
with the NEC (ANSI/NFPA 70). The inverter must be connected only to a dedicated branch circuit provided with the maximum branch
overcurrent protection device (OCPD) listed in the technical data sheet at the end of this document.
Size conductors per the NEC, Article 310 - use 90°C copper wire only; conductors must be sized according to operating temperature
range and continuous current ratings. The AC grid wiring is connected through the inverter switchbox.
AC output wire must be listed PV wire rated minimum 600V.
- Run an approved raceway between the inverter and external AC disconnect switch.
- Pass the AC wires throught the openings dedicated to the AC conduit.
When complete, seal conduit with water-tight ttings to maintain the NEMA type 4X enclosure rating.
Installer should follow conduit manufacturers’ guidelines and best practices.
- Determine which AC output is applicable for the inverter model being installed. The AC
wiring connections based on the AC grid type are shown in the table (also found on a label
in the wiring box).
208V~
3PH - 
240V~
SPLIT-PHASE
GRID STANDARD
TYPE DE RÉSEAU
TERMINAL
BORNE
WIRE
CÂBLE
L2
L1
N
L1
L3 L2
1
L1
2
L2
3
-
CAUTION
Thisisasingle phase inverter. Use thewiringschemes shown on the
table below when adifferent grid standardis used. Refer to the
instruction manual to properly set theinvertergrid standard fromthe
front panel display. Use 90°C copper wire only. Refer to theinstruction
manual forwiringinstructions.
ATTENTION
Ceci est un onduleur monophasé.Utilisez lesschémas de raccordement
ci-dessussileréseau est spécifique.Réferez-vousaumanuel
d'installation pour sélectionner via l'afficheur frontal le code pays
adéquat.Utilisez seulement câbles en cuivre90°C.
Consulterle manual d'installation pour lesinstructions de câblage.
AWG# 4 - 8
1
L1
2
L2
3
N
- Connect wiring to the numbered terminals based on selected grid type. AC wiring terminals are
spring pressure type and accommodate a wire size range of 20-6 AWG.
- Connect the protective earth (PE) cable to wiring box busbar
16
. Screws the cable (max
4 wires 8AWG to 4AWG, copper) with 2.0Nm (1.5ft-lb) torque.
The default 240V split-phase connection requires the grid Neutral to be connected to the inverter for proper operation. Before connecting
the inverter to the grid, the grid type must be selected during the commissioning phase. If several inverters are installed to a three-phase
AC grid, always distribute the inverters between the phases in order to reduce power imbalance between the phases.
- When all connections are complete, reinstall the front covers and tighten the cover screws with 1.5Nm (13.2 in-lbs) torque.
CAUTION
ATTENTION
REFER TO LOCAL CODE
FOR WIRE SIZE
FAIRE RÉFERENCE À LA
LÉGISLATION LOCALE POUR
LA DIMENSION DU CABLE
-IN1
+IN1
-IN2
+IN2
1 2 3
-RSD +RSD
Abnormal grid conditions: The inverter is programmed to respond to abnormal grid conditions, as specied in the below table:
Condition Utility source Max. time (sec)2at 60Hz before cessation of current
Voltage (V) Frequency (Hz)
A<0.50 Vnom1Rated (60Hz) Default setting3 0.16 (Adj. 0.16 to 1.5)
B 0.50 Vnom1 ≤ V < 0.70 Rated (60Hz) Default setting3 3 (Adj. 0.16 to 30)
C0.70 Vnom1 ≤ V < 0.88 Rated (60Hz) Default setting3 2 (Adj. 0.16 to 30)
C1.10 Vnom1< (*) Rated (60Hz) Default setting3 1 (Adj. 0.16 to 30)(*)
D1.20 Vnom1 ≤ V (*) Rated (60Hz) Default setting3 0.16 (Adj. 0.001 to 0.16 sec)
E Rated Default setting3 f > 60.5 Hz (Adj. 60.1 to 64.0 Hz) Default setting3 0.16 (Adj. 0.16 to 300 sec)
F Rated Default setting3 f < 59.3 Hz (Adj. 56.0 to 59.9 Hz) Default setting3 0.16 (Adj. 0.16 to 300 sec)
G Rated Default setting3 f < 57.0 Hz (Adj. 50.0 to 56.0 Hz) 0.16 (Fixed)
H Rated Default setting3 f > 63.0 Hz (Adj. 62.0 to 64.0 Hz) 0.16 (Fixed)
1. Vnom is the nominal output voltage rating.
2. Trip limit and trip time accuracy specication is as follows: Voltage: +/-2%, Frequency: +/- 0.10Hz, Time: 2 grid cycles (33ms @ 60Hz).
3. Default settings aligned with IEEE 1547-2003 requirements.
To adjust voltage and frequency and disconnect times to meet local utility requirements, make modications are made using :
- The inverter embedded web user interface. The Admin password is required to unlock the “installer” functionalities.
- The LCD display. A time-limited service password is required, contact ABB solar inverter technical support 1-877-261-1374.
- Aurora Manager LITE software. Connect the inverter equipped with UNO-DM-COM kit UNO or UNO-DM-PLUS-Ethernet COM kit to a PC through a RS-485/
USB adapter. Download the manual at www.abb.com/solarinverters. An User ID and a password is required to unlock the “installer” functionalities of the software,
contact ABB solar inverter technical support 1-877-261-1374.
Fault currents and durations: During a grid fault including a short circuit condition, the inverter may inject current into the grid as specied below:
Utility voltage (V) Fault current RMS (A)
1 cycle 3 cycle 5 cycle
208 17.4 15.9 15.8
240 17.1 16.5 16
Output power derating at high ambient temperature: Under high ambient temperatures, the inverter is designed to automatically reduce its output power.
Detailed derating curves by model are provided in the product manual found on www.abb.com/solarinverters.
LED and KEYS, in various combinations, may display the status conditions or perform complex actions to be explored by consulting the product manual.
LEDs
06
POWER Green Solid when the inverter is working correctly. Flashes when checking the grid or
if there is insufcient sunlight.
COMM
STATUS Multicolor
Operation status of wireless communication line:
- Blink Red: Communication error (no communication available)
- Green: Communication OK
ALARM Yellow The inverter has detected an anomaly. The anomaly is shown on the
“EVENTS” section of the internal webserver and on the display.
RSSI 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
GFI Red Ground fault on the DC side of the PV generator. The error is shown on
the “EVENTS” section of the internal webserver and on the display.
The LCD has two visible text lines and the UP and DOWN control keys are used to scroll through the menu items. An arrow on the left side of the display highlights
the current selection. Move the arrow UP or DOWN to the desired selection and press ENTER to access the associated submenu. To return to the preceding menu,
press the ESC key.
- Press ESC to open the menus. Use the DOWN key to scroll the submenus.
- The default password for Setting menus is 0000.
Keys
08
ESC Used to access the main menu, to go back to the previous menu or to go back to the previous digit to be edited.
UP Used to scroll upwards the menu options or to shift the numerical scale in ascending order.
DOWN Used to scroll downwards through the menu options or to shift the numerical scale in descending order.
ENTER Used to conrm an action, to access the main menu or the submenu for the selected option (indicated by the > symbol) or to switch to the next digit to edit.
COMM
STATUS
RSSI
080706
Before proceeding with commissioning, make sure you have carried out all the operations and checks indicated in the previous sections of
this quick installation guides, and verify that the inverter cover
05
was properly closed!
Refer to the product manual for further information about the conguration and the use of the functionality of the internal Webserver.
Commissioning and conguration of the inverter can also be done with the display
07
. Consult the product manual for more information.
Commissioning and conguration of the inverter can be made using a wireless capable device such as a smartphone, tablet or laptop.
The steps for commissioning are listed below:
1. Set the inverter’s DC disconnect switch
16
and any external DC switches to “ON” position: If the input voltage applied to one of the two input channels is
greater than the minimum starting voltage, the inverter will start up.
The inverter is powered ONLY by the voltage coming from the photovoltaic generator: the presence of grid voltage alone IS NOT SUFFI-
CIENT to allow the inverter to power up.
If a RSD device was istalled into the plant, it also will needed to connect the AC grid to allow the inverter to power-up!
2. Set the external AC disconnect switch downstream to the inverter to “ON” position.
3. Enable Wireless on the device that is being used for the inverter commissioning (tablet, smartphone or PC) and connect it to the Access Point created by the
inverter: a network with the name ABB-XX-XX-XX-XX-XX-XX will appear in the list of networks, where “X” is a hex digit of the MAC address (MAC address
can be found on the “Wireless Identication Label” placed on the side of the inverter or previously applied to this quick installation guide - see cover page).
4. When required enter “ABBSOLAR” as network password for the inverter’s access point.
After the inverter has been powered up for 24 hours, the access point default password “ABBSOLAR” will be disabled.
Any subsequent access to the internal webserver will be possible only using the PRODUCT KEY printed on the “Wireless identication
label” previously applied to this quick installation guide (see cover page) as access point password.
5. Open the internet browser (recommended browser: Chrome versions from v.55, Firefox versions from v.50, Safari versions from v.10.2.1) and enter the pre-
set IP address to access the conguration wizard page: 192.168.117.1
6. A conguration wizard will open, consisting of a sequence of steps in which all the required elds must be completed correctly (language of the wizard can be
selected in the upper status bar). The steps and information required by the conguration wizard are:
STEP 1 - Set the Administrator/User login credentials (minimum 8 character for password). User and password are CASE SENSITIVE.
STEP 2 (OPTIONAL) - Enter the required information (IP selection mode, SSID and Password) to connect the inverter to the residential wireless network
with “Station Mode” (Note: This step can be skipped to continue operating with the point-to-point connection “AP mode”). Once the inverter is connected to
the wireless network it will be necessary switch the tablet/smartphone/PC device to the same wireless network to which the inverter is connected to proceed
with the conguration wizard (for any difculties concerning this step, refer to the “Internal Webserver and wireless troubleshooting” chapter of the product
manual). Once the connection is acquired, a new message will provide you the links (corresponding to the IP Address assigned by the router to the inverter
and the “Host Name”) that can be used each time you want to access the internal webserver. TAKE NOTE OF THEM.
STEP 3 - Set the Date, Time and Time zone (The inverter will propose these elds when available).
STEP 4 - Set the inverter country standard, Input channel conguration and Meter conguration (if installed). Clicking the “END” button the wizard will be
completed (after conrmation the inverter will reboot).
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” func-
tionality is blocked and the remaining time will have to be reset in order to have the 24 hours of operation available again. To select a new
grid standard follow the procedure “Resetting the remaining time for grid standard variation” described in the product manual.
Any inverters installed, or commissioned, in California after September 8, 2017 must be set to the Rule 21 country code
USA - RULE21 @ 240 single [R21 240sp] or USA - RULE21 @ 208 single [R21 208si].
Once both AC and DC switches are closed and the wizard commissiong procedure is nished, the inverter starts the grid connection sequence: the inverter
performs the grid voltage check, measures the PV array insulation resistance against earth and carries out other self-diagnosis checks.
During the checks before the connection with the grid, the “Power” LED keeps ashing, the “Alarm” and “GFI” LEDs are off. If there is not sufcient sunlight to
connect to the grid, the inverter will repeat the connection procedure until all the parameters are within range.
If the preliminary checks for parallel connection to the grid are successful, the inverter connects to the grid and begins to export power to the grid.
The “Power” LED remains xed on while the “Alarm” and “GFI” LEDs are off.
UNO-DM-3.3 UNO-DM-3.8 UNO-DM-4.6 UNO-DM-5.0
Input
Absolute maximum input voltage (Vmax,abs) 600 V
Start-up voltage (Vstart)default 200 V (120...350 V)
Operating MPPT voltage range (Vdcmin...Vdcmax)0.7xVstart...580 V (≥ 90V)
Maximum usable power (PdcrMPPT) - each channel 2000 W 3000 W 3000 W 3500 W
Number of Independent MPPT 2
Full power MPPT voltage range (VMPPT min ... VMPPT max) with parallel MPPT
conguration a Pacr
160...530 V (208 Vac)
170...530 V (240 Vac)
120...530 V (208 Vac)
140...530 V (240 Vac)
140...530 V (208 Vac)
150...530 V (240 Vac)
130...530 V (208 Vac)
145...530 V (240 Vac)
Maximum usable current (Idc max) - each channel 10.0 A 16.0 A 16.0 A 19.0 A
Maximum current (Idc max)20.0 A 32.0 A 32.0 A 38.0 A
Maximum short circuit current (Isc max) - each channel 12.5 A 20.0 A 20.0 A 22.0 A
Number of wire landing terminals 2 pairs, capable of connecting two parallel strings
Array wiring termination Terminal block, pressure clamp, AWG20-8
Input protection
Reverse Polarity Protection Yes, from current limited source
Over-voltage protection type Varistor
PV array ground fault detection Pre start-up RISO and dynamic GFDI
DC switch rating (per contact) 600 V / 23A@600V, 38A@500V and 45A@350V
Output
AC grid connection type 1Φ/2W or Split-Φ/3W
Nameplate Apparent Power (Smax) 3300 VA (208 Vac)
3300 VA (240 Vac)
4200 VA (208 Vac)
4200 VA (240 Vac)
4600 VA (208 Vac)
4600 VA (240 Vac)
5000 VA (208 Vac)
5000 VA (240 Vac)
Nameplate Output Active Power (Pacr@cosφ=1)3300 W (208 Vac)
3300 W (240 Vac)
4200 W (208 Vac)
4200 W (240 Vac)
4600 W (208 Vac)
4600 W (240 Vac)
5000 W (208 Vac)
5000 W (240 Vac)
Output Active Power @Vacr and cosφ=±0,9 (PRated)2700 W (208 Vac)
3000 W (240 Vac)
3000 W (208 Vac)
3450 W (240 Vac)
3780 W (208 Vac)
4140 W (240 Vac)
4118 W (208 Vac)
4500 W (240 Vac)
Nominal AC output voltage (Vacr)208Vac (1Φ/2W) or 240Vac (Split-Φ/3W)
Output AC voltage range (Vacmin...Vacmax)183...228Vac (1Φ/2W) or 211...264Vac (Split-Φ/3W)
Maximum current (Iac max)14.5 A 16.0 A 20.0 A 22.0 A
Contributory fault current 16.0 A 19.0 A 22.0 A 24.0 A
Nominal output frequency (fr) 60 Hz
Adjustable grid frequency range (fmin...fmax) 50...64 Hz
Power factor and adjustability range >0.995, adj. +/-0.8
Total harmonic distortion at rated power <2%
Grid wiring termination type Terminal block, pressure clamp, AWG20-6
Output Protection
Anti-islanding protection Meets UL1741 / IEEE1547 requirements
Over-voltage protection type Varistor, 2 (L1 - L2 / L1 - G)
Maximum AC OCPD rating 20.0 A 20.0 A 25.0 A 30.0 A
Operating Performance
Maximum efciency (ηmax)97.0% 97.0% 97.0% 97.4%
CEC efciency 96.5% (208 Vac) 96.0% (208 Vac) 96.0% (208 Vac) 96.5% (208 Vac)
96.5% (240 Vac) 96.5% (240 Vac) 96.5% (240 Vac) 97.0% (240 Vac)
Stand-by consumption < 8.0 Wrms
Night-time consumption < 0.6 Wrms
Auxiliary Output
Isolated Auxiliary Power Supply (1) 24Vdc, 0.4A max
Communication
Embedded Communication interface Wireless (2)
Embedded Communication Protocol ModBus TCP (SunSpec)
Commissioning Tool Web User interface, Display, Aurora Manger Lite
Monitoring Plant Portfolio Manager, Plant Viewer, Plant Viewer for Mobile
Optional board UNO-DM-COM Kit
Optional Communication Interface RS485, Alarm/Load manager relay, Remote ON/OFF
Optional Communication Protocol ModBus RTU (SunSpec), Aurora Protocol
Optional board UNO-DM-PLUS-Ethernet COM Kit
Optional Communication Interface Ethernet, RS485, Alarm/Load manager relay, Remote ON/OFF
Optional Communication Protocol ModBus TCP (SunSpec), ModBus RTU (SunSpec), Aurora Protocol
Environmental
Ambient air operating temperature range -13°F to +140°F (-25°C to +60°C) with
automatic power reduction above 122°F (50°C)
-13°F to +140°F (-25°C to +60°C) with
automatic power reduction above 113°F (45°C)
Relative Humidity 0-100% RH condensing
Acoustic noise emission level < 50 db (A) @1m
Maximum operating altitude without derating 6560ft (2000m)
Environmental class Outdoor
Mechanical specications
Enclosure rating Certied to NEMA Type 4X
Cooling system Natural convection
Dimensions (H x W x D) 34.0 x 16.4 x 6.9in (863 x 418 x 175mm) (3)
Weight 33lb (15kg) (3)
Shipping weight 46lb (20,7kg) (3)
Mounting system Wall bracket
Conduit connections (2) Bottom: Markings for (2) concentric KOs 1”, 3/4” and (2) KOs 1/2” Sides: Markings for concentric KOs 1”, 3/4”
Safety
Insulation level Transformerless (oating array)
Safety and EMC standard UL1741, IEEE1547.1, CSA-C22.2 N. 107.1-01, UL1998 UL 1699B, FCC Part 15 Class B
Grid standard UL 1741 SA, IEEE 1547, Rule 21, Rule 14 (HI)
Safety approval cTUVus
Available models
Model with DC switch, wiring box, AFD, RSD supply output UNO-DM-3.3-TL-PLUS-US-SB-RA UNO-DM-3.8-TL-PLUS-US-SB-RA UNO-DM-4.6-TL-PLUS-US-SB-RA UNO-DM-5.0-TL-PLUS-US-SB-RA
1. The auxiliary output is used to supply the RSD contactors when required. 2. WLAN IEEE 802.11 b/g/n @2,4GHz 3. When equipped with DC switch and wiring box
Note. Features not specically mentioned in this data sheet are not included in the product