ABB UNO-DM-2.0-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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000677FG
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety instructions that must be followed during the installation
and maintenance of the equipment.
SAVE THESE INSTRUCTIONS!
Keep this document in a safe place near the inverter for easy access during installation, ope-
ration and maintenance.
THE INSTALLER MUST READ THIS DOCUMENT IN ITS ENTIRETY BEFORE INSTALLING
THIS EQUIPMENT.
Operators are required to read this manual and scrupulously follow the instructions given in
it, since ABB cannot be held responsible for damage caused to people and/or things, or the
equipment, if the conditions described below are not observed.
The purpose of this document is to support the qualied technician, who has received training
and/or has demonstrated skills and knowledge in construction, to install, operate and maintain
the inverter. This manual covers only inverter, not any equipment (photovoltaic modules, external
disconnects, etc) to which it is connected.
Warranty requirements are included in the Terms and Conditions of sale included with the
inverter order.
NOTE: Any changes made to the product or to the installation conditions that hasn’t been
approved by ABB will void the warranty.
All pictures and illustrations shown in this user manual are indicatives and must be intended as
support for installation instruction only. Actual product may vary due to product enhancement.
Specications subject to change without notice. The latest version of this document is availa-
ble on the ABB website.
The products are designed to be connected to and to communicate information and data via a network interfa-
ce. It is the user’s sole responsibility to provide and continuously ensure a secure connection between the pro-
duct and the user’s network or any other network (as the case may be). The user shall establish and maintain
any appropriate measures (such as but not limited to the installation of rewalls, application of authentication
measures, encryption of data, installation of anti-virus programs, etc) to protect the product, the network, its
system and the interface against any kind of security breaches, unauthorized access, interference, intrusion,
leakage and/or theft of data or information. ABB and its afliates are not liable for damages and/or losses re-
lated to such security breaches, any unauthorized access, interference, intrusion, leakage and/or theft of data
or information. The data, examples and diagrams in this manual are included solely for the concept or product
description and are not to be deemed as a statement of guaranteed properties. All persons responsible for
applying the equipment addressed in this manual must satisfy themselves that each intended application is su-
itable and acceptable, including that any applicable safety or other operational requirements are complied with.
In particular, any risks in applications where a system failure and/or product failure would create a risk for harm
to property or persons (including but not limited to personal injuries or death) shall be the sole responsibility of
the person or entity applying the equipment, and those so responsible are hereby requested to ensure that all
measures are taken to exclude or mitigate such risks. This document has been carefully checked by ABB but
deviations cannot be completely ruled out. In case any errors are detected, the reader is kindly requested to
notify the manufacturer. Other than under explicit contractual commitments, in no event shall ABB be respon-
sible or liable for any loss or damage resulting from the use of this manual or the application of the equipment.

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000677FG
Product Manual
UNO-DM-1.2/2.0/3.0/3.3/4.0/4.6/5.0-TL-PLUS string inverters
1 - Safety and accident prevention
2 - Introduction and general information
3 - Characteristics
4 - Lifting and transport
5 - Installation
6 - Instruments
7 - Operation
8 - Maintenance
9 - Attachments
UNO-DM-1.2/2.0/3.0/3.3/4.0/4.6/5.0-TL-PLUS-Product manual EN-Rev F (M000036FG)
EFFECTIVE 21/05/2019
© Copyright 2019 ABB. All Rights Reserved.

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001033BG
Table of Contents
Safety and accident prevention ....................................................................................................... 8
Safety information and instructions ....................................................................................................8
Symbols and signs.................................................................................................................................9
Installation and maintenance safety ..................................................................................................11
General safety information.................................................................................................... 11
Environmental conditions and risks ...................................................................................... 11
Electrical and thermal safety.................................................................................................12
Residual risks .......................................................................................................................................13
Table of residual risks ...........................................................................................................13
Introduction and general information............................................................................................. 14
Warranty and supply conditions.........................................................................................................14
Not included in the supply.....................................................................................................14
Scope and target audience..................................................................................................................15
Purpose and document structure .........................................................................................15
List of appendix documents ..................................................................................................15
Operator and maintenance personnel skills/prerequisites ...................................................15
Application area, general conditions ................................................................................................16
Intended or allowed use........................................................................................................16
Limits in field of use...............................................................................................................16
Improper or prohibited use ...................................................................................................16
Characteristics................................................................................................................................. 17
General conditions ...............................................................................................................................17
Reference number index .....................................................................................................................18
Graphical representation of references.............................................................................................18
Accessory Board UNO-DM-COM KIT .................................................................................................19
Accessory Board UNO-DM-PLUS-COM Ethernet KIT ......................................................................20
REACT-MTR-1PH energy meter ..........................................................................................................21
ABB B23, B24 3PH energy meter........................................................................................................21
ABB B21 1PH energy meter ................................................................................................................22
Models and range of equipment .........................................................................................................23
Identification of the equipment and manufacturer ................................................................24
Characteristics and technical data.....................................................................................................26
Tightening torques ................................................................................................................32
Overall dimensions ...............................................................................................................32
Bracket dimensions...............................................................................................................33
Efficiency curves ..................................................................................................................................34
Power limitation (Power Derating)......................................................................................................36
Power reduction due to environmental conditions................................................................36
Power reduction due to the input voltage .............................................................................37
Characteristics of a photovoltaic generator......................................................................................38
Strings and arrays.................................................................................................................38

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001033BG
Description of the equipment..............................................................................................................39
Operating diagram ................................................................................................................39
Mutual connection of multiple inverters ................................................................................40
Notes on the system sizing...................................................................................................40
Operating diagram................................................................................................................................41
Functionality and components of the equipment .................................................................42
Topographic diagram of the equipment ................................................................................45
Safety devices.......................................................................................................................................48
Anti-Islanding ........................................................................................................................48
Ground fault of the photovoltaic panels ................................................................................48
Other safety devices .............................................................................................................48
Lifting and transport........................................................................................................................ 49
General conditions ...............................................................................................................................49
Transport and handling .......................................................................................................49
Lifting.....................................................................................................................................49
Unpacking and checking ......................................................................................................49
List of components supplied .................................................................................................50
Weight of the modules of the equipment..............................................................................51
Installation ......................................................................................................................................... 52
General conditions ...............................................................................................................................52
Environmental checks...........................................................................................................53
Installations above 2000 metres...........................................................................................53
Wireless signal environmental checks..................................................................................54
Recommendations for the wireless signal power.................................................................56
Installation position................................................................................................................57
Wall mounting .......................................................................................................................................58
Wireless antenna mounting ................................................................................................................59
Opening the front cover.......................................................................................................................60
Preliminary operations for connection of the PV generator ...........................................................61
Checking the correct polarity of the strings ..........................................................................61
Checking of leakage to ground of the photovoltaic generator..............................................61
Selection of differential protection downstream of the inverter ............................................61
Independent or parallel input channels configuration.....................................................................63
Channel configuration examples ..........................................................................................64
Independent channel configuration (default configuration) ..................................................65
Parallel channel configuration ..............................................................................................65
Input connection to PV generator (DC side) .....................................................................................66
Installation procedure for quick-fit connectors .....................................................................68
Distribution grid output connection (AC side)..................................................................................72
Characteristics and sizing of the line cable ..........................................................................72
Load protection switch (AC disconnect switch) ....................................................................73
Installation of the cable on the AC output connector ............................................................74
Connection for the AC output connector to the inverter .......................................................76
Installation of the external protective grounding cable .........................................................77

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001033BG
Communication and control signal connections to the UNO-DM-COM KIT board ......................78
Description of terminal blocks on the UNO-DM-COM KIT board.........................................79
Description of terminal blocks on the UNO-DM-PLUS-COM Ethernet KIT board ...............80
Connection of the RS485 line...............................................................................................................81
Remote control connection ...................................................................................................83
Demand Responce Mode 0 (Request by AS/NZS 4777).....................................................83
Configurable Relay connection (ALARM / LOAD MANAGER) ...........................................84
Connection of the energy meter .........................................................................................................85
Connection of the REACT-MTR-1PH (single-phase) ...........................................................85
Connection and configuration of the ABB B21 meter (single-phase)...................................87
Connection and configuration of the ABB B23, B24 3PH (three-phase)..............................90
Closing the front cover ........................................................................................................................93
Instruments........................................................................................................................................ 94
General conditions ..............................................................................................................................94
Monitoring and data transmission .....................................................................................................95
User interface........................................................................................................................95
Measurement tolerance ........................................................................................................95
Description of keyboard and LED Panel...............................................................................96
Operation.......................................................................................................................................... 97
General conditions ..............................................................................................................................97
Commissioning (Via web user interface)...........................................................................................98
Commissioning (Using the inverter display)...................................................................................107
Power, Alarm, GFI LEDs behaviour ..................................................................................................109
Specifications on operation of the LEDs............................................................................. 110
LED insulation fault .............................................................................................................110
COMM, WLAN LEDs behaviour.........................................................................................................110
Description of the Web user interface ............................................................................................. 111
Access to the Web user interface....................................................................................... 111
web user interface menu structure ..................................................................................... 114
MAIN section.......................................................................................................................115
SETUP section....................................................................................................................116
EVENTS Section.................................................................................................................118
USER section......................................................................................................................119
NETWORK section .............................................................................................................120
TOOLS section....................................................................................................................124
INFORMATION Section......................................................................................................135
Description of the Display menus ....................................................................................................136
General information ............................................................................................................136
Menu structure ....................................................................................................................137
System Menu ......................................................................................................................138
Inverter Menu......................................................................................................................140
Display Menu ......................................................................................................................154
WLAN Logger Menu ...........................................................................................................155

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001033BG
Maintenance................................................................................................................................... 157
General conditions .............................................................................................................................157
Inverter total de-energization and safe access...............................................................................158
Operator and maintenance personnel skills/prerequisites .................................................158
Clothing and protection of personnel..................................................................................159
Safety equipment and tools ................................................................................................159
Inverter total de-energization and safe access procedure .................................................160
Routine maintenance .........................................................................................................................170
Troubleshooting .................................................................................................................................171
Web user interface and wireless communication troubleshooting.....................................171
Alarm Messages of the Inverter..........................................................................................173
Power limitation messages .................................................................................................182
Dismantling the inverter ...................................................................................................................184
Replacement of the MEMORY board................................................................................................185
Replacement of the buffer battery....................................................................................................186
Registration on “Registration” website and calculation of second-level password (Service
menu, Admin Plus) .............................................................................................................................187
Resetting the remaining time for grid standard variation from display.......................................190
Verification of ground leakage .........................................................................................................191
Behaviour of a system without leakage ..............................................................................191
Behaviour of a system with leakage ...................................................................................192
Measuring the isolation resistance of the PV generator................................................................193
Storage and dismantling ..................................................................................................................194
Storage of an uninstalled inverter for long periods.............................................................194
Storage of an installed inverter for long periods of non-use...............................................194
Disposal...............................................................................................................................194
Attachments ................................................................................................................................... 195
Port and network services used by the inverter.............................................................................195
IP Network Services............................................................................................................195
Network Hosts.....................................................................................................................196
Inverter network configuration ............................................................................................196
Further information ............................................................................................................................197
Contact us ...........................................................................................................................................198

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000913AG
Safety information and instructions
This chapter contains the safety instructions which you must obey when
you install and operate the inverter and perform maintenance operations
on the inverter. Obey these safety instructions to prevent injury or death,
or damage to the equipment.
The instructions provided in the manual do not replace the safety devices
and technical data for installation and operation labels on the product,
and they do not replace the safety regulations in force in the country of
installation.
The operators must read and comply with the technical information and
instruction provided in the manual and in the attached documentation.
ABB accepts no liability for failure to comply with the instructions for
correct installation and cannot be held responsible for the upstream or
downstream equipment.
Specic safety information are provided during installation, commissio-
ning and maintenance operation instructions. Always follow the reading
order of instruction exactly as described in this manual.
1
Safety and accident prevention

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000914AG
1 - Safety and accident prevention
Symbols and signs
In the manual and/or in some cases on the equipment, the danger or
hazard zones are indicated with signs, labels, symbols or icons.
Symbol Description
It is mandatory to consult the manual or original document, which must
be available for future use and must not be damaged in any way.
General warning - Important safety information. Operations or situa-
tions in which staff must be very careful.
Dangerous Voltage - Operations or situations in which staff must be
very careful with regard to dangerous voltage levels.
Hot parts - Risk arising from the presence of hot zones or zones with
parts at high temperatures (risk of burns).
Risk of explosion
Risk of injury due to the weight of the equipment. Take care during lifting
and transport
The area marked with this sign must not be accessed or the operation
described must not be carried out.
Keep out of the reach of children
Smoking and the use of naked ames is prohibited.
It is mandatory to carry out the described operations using the clothing
and/or personal protective equipment provided by the employer.
WEEE logo. The product have to be disposed according to current legi-
slation regarding the disposal of electronic components.
IPXX Protection rating of the equipment according to IEC 70-1 (EN 60529
June 1997) standard.
Point of connection for grounding protection.
Permitted temperature range

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000914AG
1 - Safety and accident prevention
Symbol Description
XX
Risk of electric shock. The discharge time of the stored energy (repre-
sented in the gure by the letters XX), is provided on the identication
label.
DC
Direct Current
AC
Alternate current
With isolation transformer
Without isolation transformer
Positive pole of the input voltage (DC)
Negative pole of the input voltage (DC)
Center of gravity of the equipment.
Wear acoustic protection devices in order to prevent damage to hearing

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000915AG
1 - Safety and accident prevention
Installation and maintenance safety
General safety information
Do not proceed with installation if the integrity of the equipment is compromised. Do not use
the equipment if you nd any operating anomalies.
Avoid temporary repairs. All repairs should be carried out using only genuine spare parts,
which must be installed in accordance with their intended use.
The labels afxed on the equipment must strictly NOT be removed, damaged, defaced, hid-
den, etc.
Do not do work on the photovoltaic generator, or the inverter, or its input or output cables, when
the inverter is connected to an electrical power system, or to the photovoltaic generator.
Before performing any maintenance operation on the inverter, follow this steps:
• Prepare the work: Do an on-site Risk Assessment or Job Hazard Analysis (Check for
proper tools and PPE for the Job; Engage the person responsible for electrical equipment or
system to review single-line, schematics, switching plans; Decide on the appropriate work
methods and initiate the permit to work process).
• Clearly identify the work location and equipment.
• Disconnect all sources and Secure against reconnection by means of a ‘Lockout/
Tagout procedure to ensure it cannot accidentally become live.
• Verify the absence of operating voltage (This must be by means of a proper test instrument).
• Complete the permit to work and “Walk the Permit” (Now we have veried a ‘safe working
area’ it is time to validate the ‘Permit to Work’ and “Walk the Permit”).
Refer to “Inverter total de-energization and safe access” chapter on this manual to
know all detailed necessary steps to safely operate on the inverter.
Environmental conditions and risks
The device can be installed outdoors, but only in environmental conditions that do not prevent its
regular operation. These conditions are listed in the technical data and in the installation chapter.
Do not open the front covers of the inverter when it is raining, or when sand or dust can blow
into the unit. Water or sand in the inverter can cause damage in the unit. In the risk assessment
prior any intervention on the equipment it is of paramount importance to evaluate the weather
conditions. Any intervention on the inverter can be done only in case of dry environment. Don’t
proceed in case of rain (even light) or high humidity.
The device is not designed to operate in environments that are particularly inammable or
explosive.
In the event of re, use CO2 extinguishers and auto-extraction systems to extinguish the re
in closed environments.
The installer or maintenance technician must always pay attention to the work environment,
ensuring that it is well-lit and there is enough room to ensure an escape route.

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000915AG
1 - Safety and accident prevention
Electrical and thermal safety
WARNING! Obey these instructions to prevent injury or death, or damage to the
equipment. If you are not a qualied electrician, do not perform any electrical installation
or maintenance work.
Obey all installation safety standards. This can require, among other things, the use of
personal protection equipment (PPE), such as arc-proof clothing, arc-proof masks, protective
footwear, insulating and protective gloves, eye protection and hearing protection. High power
inverter installations have high fault currents.
Before you operate on the inverter, isolate the AC line cables from the electrical power system
with the AC disconnect switch of the power system transformer (downstream the inverter). Also,
isolate the inverter from the photovoltaic generator with the DC disconnect switch of the generator
or by other means (upstream the inverter). The internal AC disconnect switch (if present) do not
isolate the AC output cables and terminals of the inverter from the electrical power system. The
internal DC disconnect switches (if present) do not complete isolate the DC input cables or
terminals from the DC voltage supplied by the photovoltaic generator. Refer to “Inverter total
de-energization and safe access” chapter on this manual for further details.
Do not work on the communication and control signal cables when power is applied to the
inverter or to the external control circuits.
Do not perform insulation or voltage withstand tests on the inverter.
ABB inverters must be earthed via the connection points marked with the protective earth
symbol
and using a cable with an appropriate conductor cross-section for the maximum
ground fault current that the generating system might experience.
Do not switch-on the inverter with the front covers open, even during troubleshooting. The
inverter front covers act as arc hazard protection. If a highly unlikely arc ash incident occurs
when the inverter front covers are open, the arc-ash proof protection equipment might not
provide sufcient protection for the operators.
When the device has just been switched off, it may have hot parts as a result of overheating
of the heated surfaces (e.g.: transformers, accumulators, coils, etc.) so be careful where you
touch.

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000916AG
1 - Safety and accident prevention
Residual risks
Despite the warnings and safety systems, there are still some residual
risks that cannot be eliminated.
These risks are listed in the following table with some suggestions to
prevent them.
Table of residual risks
RISK ANALYSIS AND DESCRIPTION SUGGESTED REMEDY
Noise pollution due to installation in unsuitable environments or where
staff work permanently.
Reassess the environment or the
place of installation.
Suitable local ventilation that does not cause overheating of the
equipment and is sufcient not to create discomfort to people in the
room.
Restore suitable ambient
conditions and air the room.
External weather conditions, such as water seepage, low temperatures,
high humidity, etc.
Maintain ambient conditions
suitable for the system.
Overheating of surfaces at temperature (transformers, accumulators,
coils, etc. ) can cause burns. Also be careful not to block the cooling slits
or systems of the equipment.
Use suitable protective equipment
or wait for the parts to cool down
before switching on the equipment.
Inadequate cleaning: compromises cooling and does not allow the safe-
ty labels to be read.
Clean the equipment, labels and
work environment adequately.
Accumulation of electrostatic energy can generate hazardous dischar-
ges.
Ensure the devices have
discharged their energy before
working on them.
During installation, temporarily mounting the equipment or its components
may be risky.
Be careful about and disallow
access to the installation area.

- 14 -
000917AG
Warranty and supply conditions
The warranty conditions (available on the ofcial ABB website) are con-
sidered to be valid if the Customer adheres to the indications in this ma-
nual; any condition deviating from those described herein must be ex-
pressly agreed in the purchase order.
ABB declares that the equipment complies with the provisions of law currently in force in the
country of installation and has issued the corresponding declaration of conformity.
Not included in the supply
ABB accepts no liability for failure to comply with the instructions for correct installation and
will not be held responsible for systems upstream or downstream of the equipment it has
supplied.
It is absolutely forbidden to modify the equipment. Any modication, manipulation, or alte-
ration not expressly agreed with the manufacturer, concerning either hardware or software,
shall result in the immediate cancellation of the warranty.
The customer is fully responsible for any changes made to the system.
Given the countless array of system congurations and installation envi-
ronments possible, it is essential to check the following: adequate spa-
ces, suitable for housing the equipment; airborne noise produced based
on the environment; possible ammability conditions.
ABB will NOT be held liable for defects or malfunctions arising from: im-
proper use of the equipment; deterioration resulting from transportation
or particular environmental conditions; performing maintenance incor-
rectly or not at all; tampering or unsafe repairs; use or installation by
unqualied persons.
ABB is not responsible for any loss of the equipment, or part of it, which
does not take place on the basis of the regulations and laws in force in
the country of installation.
2
Introduction and general information

- 15 -
000918AG
2 - Introduction and general information
Scope and target audience
Purpose and document structure
This operating and maintenance manual is a useful guide that will enable
you to work safely and carry out the operations necessary for keeping the
equipment in good working order.
If the equipment is used in a manner not specied in this manual, the protections and the cer-
tications provided by the equipment may be impaired with the consequent loss of warranty.
The language in which the document was originally written is ENGLISH; therefore, in the event
of inconsistencies or doubts please ask the manufacturer for the original document.
List of appendix documents
In addition to this user manual and maintenance you can consult (and
download) the product documentation by visiting www.abbsolarinver-
ters.com.
Part of the information given in this document is taken from the original supplier documents.
This document contains only the information considered necessary for the use and routine
maintenance of the equipment.
Operator and maintenance personnel skills/prerequisites
Personnel in charge of using and maintaining the equipment must be skilled for the described
tasks and must reliably demonstrate their capacity to correctly interpret what is described in
the manual.
For safety reasons, the installation must be performed by qualied installers and/or licensed
electricians in accordance with the existing regulations in the country of installation and in
accordance to all safety rules for performing electrical works. The installers must have demon-
strated skills and knowledge of the inverter’s structure and operation.
Inverter operation and maintenance by a person who is NOT qualied, is intoxicated, or on
narcotics, is strictly forbidden.
The customer has civil liability for the qualication and mental or physical state of the person-
nel who interact with the equipment. They must always use the personal protective equipment
(PPE) required by the laws of the country of destination and whatever is provided by their
employer.

- 16 -
000919AG
2 - Introduction and general information
Application area, general conditions
ABB shall not be liable for any damages whatsoever that may result from
incorrect or careless operations.
You may not use the equipment for a use that does not conform to that provided for in the
eld of use. The equipment MUST NOT be used by inexperienced staff, or even experienced
staff if carrying out operations on the equipment that fail to comply with the indications in this
manual and enclosed documentation.
Intended or allowed use
This equipment is a inverter designed for:
transforming a continuous electrical current (DC)
supplied by a photovoltaic generator (PV)
in an alternating electrical current (AC)
suitable for feeding into the public distribution grid.
Limits in field of use
The inverter can be used only with photovoltaic modules which have ground isolated input
poles.
Only a photovoltaic generator can be connected in the input of the inverter (do not connect
batteries or other sources of power supply).
The inverter can be connected to the electricity grid only in countries for which it has been
certied/approved.
The inverter cannot be connected to the DC side in parallel to other inverters.
The inverter may only be used in compliance with all its technical characteristics.
Improper or prohibited use
IT IS STRICTLY FORBIDDEN TO:
• Install the equipment in environments subject to particular conditions of ammability or in
adverse or disallowed environmental conditions, (temperature and humidity).
• Use the equipment with safety devices which are faulty or disabled.
• Use the equipment or parts of the equipment by linking it to other machines or equipment,
unless expressly provided for.
• Modify operating parameters that are not accessible to the operator and/or parts of the
equipment to vary its performance or change its isolation.
• Clean with corrosive products that could corrode parts of the equipment or generate elec-
trostatic charges.
• Use or install the appliance or parts of it without having read and understood the contents of
the user and maintenance manual.
• Placing any heavy object, sit or stand up on the inverter.
• Heat or dry rags and clothing on the parts in temperature. In addition to being hazardous,
doing so would compromise component ventilation and cooling.

- 17 -
000920AG
General conditions
A description of the equipment characteristics is provided to identify its
main components and specify the technical terminology used in the ma-
nual.
This chapter contains information about the models, details of the
equipment, characteristics and technical data, overall dimensions and
equipment identication.
The customer/Installer takes full responsibility if, when reading this manual, the chronological
order of its presentation provided is not observed. All information is provided considering
occasional inclusion of information in previous chapters.
In certain cases, there may be a need to separately document softwa-
re functionality or attach supplementary documentation to this manual
which is intended for more qualied professionals.
3
Characteristics

- 18 -
000678EG
3 - Characteristics
01 , Bracket
03 , Heat sink
04 , Anti-condensation valve
05 , Front cover
06 , LED panel
07 , Display
08 , Keyboard
09 , DC input connectors
10 , AC output connector
11 , Wireless antenna connector
12 , DC Input terminal block
13 , Locking Screw
16 ,
DC disconnect switch
(Only for -S models)
18 ,
UNO-DM-COM KIT Card
(Only for -X and -E models or as op-
tional accessory)
19 , External earth connection
20 ,Service cable glands
Reference number index
Graphical representation of references
03
09 04 16 10 11 2019
01 13
03
01
13
18
13
06
07
05
08
12

- 19 -
000678EG
3 - Characteristics
21 , Inverter connector
22 , RS485 Termination line jumper
23 , DRM0 activation jumper
24 , ALARM terminal block
25 , Fixing hole
26 , RS485 and REM terminal block
Accessory Board UNO-DM-COM KIT
(Only -X models or as optional accessory)
K1
J1
COM
NC NO
J4
21
25
24 26
23
22

- 20 -
000678EG
3 - Characteristics
Accessory Board UNO-DM-PLUS-COM Ethernet KIT
(Only -E models or as optional accessory)
21
25
24 26 27
23
22
21 , Inverter connector
22 , RS485 Termination line jumper
23 , DRM0 activation jumper
24 , ALARM terminal block
25 , Fixing hole
26 , RS485 and REM terminal block
27 , LAN Ethernet connector