ABB TRIO-20.0-TL-OUTD-S-US-480 User manual

ABB Inverter
TRIO-20.0/27.6-TL-US
EEP125 R-1 Waterworks Division 40
Lancaster, CA 93535

ABB solar inverters
Product manual
TRIO-20.0/27.6-TL-US
(20.0 to 27.6 kW)

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T001CV
List of related manuals
TRIO manuals and guides Code (English)
TRIO-20.0_27.6-TL-OUTD-US (-A) BCM.00202.1
Quick Installation Guide

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T001CV
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety instructions that must be followed during installation and
maintenance of the rapid shutdown system.
SAVE THESE INSTRUCTIONS!
Keep this document in a safe place near the inverter for easy access during installation and
maintenance.
THE INSTALLER MUST READ THIS DOCUMENT IN ITS ENTIRETY BEFORE INSTALLING
THIS EQUIPMENT.
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 and maintain this inverter. This
manual covers only the details concerning the rapid shutdown components and how it is installed in
the allowable ABB string inverters. Information concerning the equipment connected to this product is
available from the respective manufacturers.
Warranty conditions can be found on the Rapid Shutdown product page of the website. NOTE:
Any changes or modications not approved by the manufacturer could void the warranty of this
product.
.
FCC REMARKS
The equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.

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T001CV
Product Manual
TRIO-20.0/27.6 string inverters
1 - Introduction and safety
2 - Installation location
3 - Mounting and wiring
4 - Operations
5 - Troubleshooting
6 - Maintenance
7 - Appendix
TRIO-20.0-276-TL-OUTD-US(-A) Product manual
BCG.00627.2_AB NA
© Copyright 2015 ABB. All Rights Reserved.

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T002TC
Table of Contents
Warnings in this document ...................................................................................................................9
Equipment safety warnings.................................................................................................9
Introduction and safety ............................................................................................................................9
General installation warnings............................................................................................10
Assembly warnings ............................................................................................................10
Electrical connection warnings.........................................................................................10
Safety instructions ...............................................................................................................................11
General information............................................................................................................11
Thermal and voltage hazard ..............................................................................................11
Clothing and protective devices .......................................................................................12
Location of safety notices and labels...............................................................................12
Appropriate usage................................................................................................................................12
Conditions of Use ...............................................................................................................12
Environmental Conditions.................................................................................................13
Improper or Prohibited Use ...............................................................................................13
Arc fault detection (AFD) .....................................................................................................................13
Available versions ................................................................................................................................14
Regulatory label ..................................................................................................................15
Transportation and handling...............................................................................................................17
Lifting ...................................................................................................................................17
Incoming inspection...........................................................................................................17
Installation location ................................................................................................................................17
Handling the TRIO...............................................................................................................19
Select the installation location............................................................................................................20
Environmental check..........................................................................................................20
Installation position ............................................................................................................21
Mounting and wiring .............................................................................................................................23
Labeled illustration of TRIO ................................................................................................................23
Wall mounting .......................................................................................................................................25
Installation method with flexible conduit.........................................................................26
Installation method with rigid conduit..............................................................................29
Wiring details ........................................................................................................................................30
AC overcurrent protection .................................................................................................30
Wiring box components.....................................................................................................31
TRIO-XX.X-TL-OUTD-S-US-480..........................................................................................32
TRIO-XX.X-TL-OUTD-S-US-480-A......................................................................................32
TRIO-XX.X-TL-OUTD-S1-US-480........................................................................................33
TRIO-XX.X-TL-OUTD-S1-US-480-A....................................................................................33
TRIO-XX.X-TL-OUTD-S1A-US-480.....................................................................................34
TRIO-XX.X-TL-OUTD-S1A-US-480-A .................................................................................34
TRIO-XX.X-TL-OUTD-S1B-US-480.....................................................................................35
TRIO-XX.X-TL-OUTD-S1B-US-480-A .................................................................................35

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T002TC
Independent or parallel configuration of inputs ...............................................................................36
Dual MPPT configuration – independent mode ..............................................................36
Single MPPT configuration – parallel mode (non-AFD models)....................................37
Setting the input mode switch a01 ...................................................................................37
Connection to the PV field (DC side)..................................................................................................40
Connection of DC inputs -S model ...................................................................................40
Connection of DC inputs -S1, –S1A, and -S1B models .................................................41
String protection -S1, -S1A, and –S1B models ..............................................................41
Grid output connection (AC side).......................................................................................................42
Characteristics and sizing of the AC output conductors...............................................42
Wire installation ..................................................................................................................42
Connection to the AC terminal block ...............................................................................43
Auxiliary grounding electrode conductor (GEC) ............................................................44
Labeled illustration of communication card 09 ................................................................................45
Connections to the communication card.........................................................................46
Serial communication a07 (RS-485)..................................................................................46
Daisy Chain units for connection to a monitoring system ............................................47
Remote on/off a07...............................................................................................................48
Auxiliary +5 V output a07...................................................................................................49
Configurable relay a05 .......................................................................................................49
Environmental sensors a06...............................................................................................50
Auxiliary +24 V service output a06 ...................................................................................51
Setting the country standard and language......................................................................................51
Saving the country standard and language ....................................................................52
Operations..............................................................................................................................................53
Monitoring and data transmission .....................................................................................................53
Types of data available ......................................................................................................53
User interface........................................................................................................................................53
Display and keypad ............................................................................................................54
LED indicators.....................................................................................................................55
Descriptions of symbols and display fields ....................................................................56
Cyclical display of general information............................................................................56
Statistics menu ...................................................................................................................57
Settings menu .....................................................................................................................58
Information menu................................................................................................................66
Commissioning.....................................................................................................................................67
Configure inverter settings................................................................................................67
Power ON the inverter ........................................................................................................67
Dynamic behavior of the display during operation ........................................................69
Troubleshooting.....................................................................................................................................71
Arc fault detection self-test errors......................................................................................................71
Obtaining the service level password................................................................................................72
Resetting the inverter/switchbox association...................................................................................72
Display messages and error codes ...................................................................................................73
Making a service call............................................................................................................................86

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T002TC
Maintenance...........................................................................................................................................87
Routine maintenance ...........................................................................................................................87
Recommended system maintenance.................................................................................................88
Preventative maintenance ...................................................................................................................88
Storage and dismantling .....................................................................................................................89
Appendix.................................................................................................................................................91
System description .............................................................................................................................91
Protective devices within the inverter................................................................................................92
Ground fault detection and interruption scheme ............................................................................93
Topographic diagram of the equipment ............................................................................................94
Efficiency curves ..................................................................................................................................96
Voltage and temperature derating due to altitude ............................................................................97
Automatic power reduction.................................................................................................................98
MPPT configuration examples..........................................................................................................102
Environmental sensors......................................................................................................................103
Connection diagrams for environmental sensors ........................................................104
Technical data and types...................................................................................................................105
Technical data and types (continued) ..............................................................................................106

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T003CH1
Warnings in this document
This is a list of special safety symbols used in this manual that highlight potential safety risks and/or useful
information. The symbol usage is described below:
CAUTION
The reader should stop, use caution and fully understand the operations
explained before proceeding.
DANGEROUS VOLTAGE
The product works with high voltages. All work on the TRIO must follow
the described documentation and must comply with all prevailing codes and
regulations associated with high voltages.
HOT TEMPERATURE
Some surfaces may become hot; wear appropriate personal protective
equipment (PPE) when working with this product.
UL1741 Standard for Safety for Inverters, Converters, Controllers and
Interconnection System Equipment for use with Distributed Energy
Resources. CSA-C22.2 No. 107.1-01 - General Use Power Supplies.
Equipment safety warnings
In addition to the safety and hazard symbols, the following symbols are also used in this
installation guide
Equipment Ground, protective earth
Alternating current (AC) ø Phase
Direct current (DC) Grounding (earth)
1
Introduction and safety

T004CC1
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1- Introduction and safety
General installation warnings
The TRIO transformerless inverter is designed and tested according to international safety
requirements (UL1741/IEEE1547); however, certain safety precautions must be observed when
installing and operating this inverter. Read and follow all instructions, cautions and warnings in
this installation manual.
All operations regarding transport, installation start-up, and maintenance must be carried out by
qualied, trained personnel and in compliance with all prevailing local codes and regulations.
Assembly warnings
Prior to installation, inspect the unit to ensure absence of any transport or handling damage,
which could affect insulation integrity or safety clearances. The failure to do so could result in
safety hazards.
Assemble the inverter per the instructions in this manual. Use care when choosing the installation
location and adhere to specied cooling requirements.
Unauthorized removal of necessary protection features, improper use, incorrect installation or
operation may lead to serious safety and shock hazards and/or equipment damage.
Electrical connection warnings
This grid-tied inverter system operates only when properly connected to the AC utility grid. Before
connecting the TRIO grid-tied inverter to the AC utility grid, contact the local power distribution
company to receive the appropriate approvals. The inverter-to-AC utility grid connection must be
made only by qualied technical personnel.
Wiring methods used should be in accordance with the National Electric Code,
ANSI/NFPA 70 and/or any prevailing local codes and regulations.
Output circuits must be isolated from the enclosure. System grounding, required
by Sections 690.41 - 690.43 of the National Electric Code, ANSI/NFPA 70, is the
responsibility of the installer.
The inverter should be connected only to a dedicated branch circuit. Models
that include AC output overcurrent protection (-S1B) are intended for equipment
disconnection and protection, not system disconnection. It is the responsibility of
the end user to provide PV system disconnection and protection for the AC output
circuit.
Connect only to a circuit provided with the maximum branch OCPD in accordance
with the CSA document available at www.abb.com/solarinverters and listed in the
technical data sheet of the appendix, section 7.

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T004CC1
1- Introduction and safety
Safety instructions
These servicing instructions are for use by qualied personnel only. To reduce the risk of electric shock, do not
perform any servicing other than that specied in the operating instructions. Be sure all ammable materials
including construction items are away from the unit. Do not install the inverter in or near potentially explosive areas.
The TRIO is not provided with an isolation transformer and is intended to be installed per NFPA 70, 690.35 with an
ungrounded PV array. These models have no grounded input conductors. Install the TRIO inverter in accordance
with the electrical standards prescribed by the applicable National Electric Code (NEC), and/or by other local codes
and regulations.
General information
The equipment has been manufactured in accordance with the strictest accident-prevention
regulations and supplied with safety devices suitable for the protection of components and
operators. Inform ABB about non-standard installation conditions.
It is essential to provide operators with correct information. They must read and comply with the
technical information given in the manual and any other attached documentation. The instructions
given in the manual do not replace the information and warnings on the safety labels mounted
on the product. They do not replace the safety regulations enforced in the country of installation.
Maintenance operations must be carried out according to the maintenance section 6 of this
manual. Do not use the equipment if any operating anomalies are found. Liabilities arising from
commercial components are delegated to their respective manufacturers.
Thermal and voltage hazard
Depending upon ambient temperatures during operation and immediately following
shutdown, surface temperatures on the cooling ns (heat sink) and some areas of
the chassis may be extremely hot to the touch.
Prior to touching any part of the inverter, use care to ensure surfaces and equipment are at touch-
safe temperatures and voltages before proceeding.
The customer and/or installer must appropriately instruct all personnel who may come near
the equipment, and highlight, if necessary with notices or other means, the hazardous areas or
operations (magnetic elds, hazardous voltages, high temperatures, possibility of discharges,
generic hazard, etc.).

T004CC1
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1- Introduction and safety
Anytime the inverter has been disconnected from the AC utility grid, use extreme caution, as
some components can retain charge sufcient to create a shock hazard and may need time to
dissipate the charge. To minimize occurrence of such conditions, comply with all corresponding
safety symbols and markings present on the unit and in this manual.
Clothing and protective devices
Appropriate Personal Protective Equipment (PPE) must be worn at all times when servicing
this equipment under any conditions which may subject personnel to hazardous voltages or
temperatures that are not touch-safe.
All operations on the equipment should be performed with properly electrically-insulated
instruments.
Location of safety notices and labels
Note the location of safety notices on the inverter for notication and protection. Labels must
not be hidden with external objects or parts such as rags, boxes, or other such equipment. They
should be cleaned periodically and always maintained in view.
Appropriate usage
The TRIO inverter is a photovoltaic inverter that converts direct current of a connected PV array into alternating
current and feeds that power into the AC utility grid. This inverter is designed for outdoor use, but can be used
indoors if installed to specied environmental and mounting parameters stated in this manual, and adherence to
codes enforced by the jurisdiction, such as the National Electric Code. (See environmental conditions below and
environmental checks in Installation location, section 2.)
If installed indoors, the inverter must be inaccessible to unqualied persons.
Conditions of Use
WARNING! This inverter utilizes a transformerless design and requires connected
array(s) to be oating with respect to ground; it can be used only with photovoltaic
modules that do not require one of the terminals to be grounded.
• The DC and AC operating currents MUST NOT exceed the limits documented in the technical
specications in the Appendix, section 7.
• The inverter is certied for use only with photovoltaic arrays connected to its input channel(s).
Do not connect batteries or other types of power sources.
• The inverter can only be used if all the technical requirements in this manual are observed
and applied.

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T004CC1
1- Introduction and safety
Environmental Conditions
Adverse environmental conditions can lead to a reduction in performance. The equipment should
be installed outdoors, but only in environmental conditions indicated in this manual. Care must
be taken to provide adequate ventilation if installed indoors.
Improper or Prohibited Use
The following actions are dangerous and not consistent with acceptable practice under the terms
of the warranty:
• Installing the equipment in environments with ammable conditions.
• Using the equipment with safety devices not working or disabled.
• Using the equipment or parts of the equipment by connecting it to other machines or
equipment, unless otherwise expressed.
• Modifying areas that are operator-restricted and/or altering parts of the equipment in order to
vary the performance or change its protection.
• Cleaning with corrosive products that may corrode parts of the equipment or with products
that might generate electrostatic charges.
• Using or installing the equipment or parts of it without having read and correctly interpreted
the contents of this manual.
• Blocking airow to the cooling ns (e.g., warming or drying rags) on the unit or accessory
parts is dangerous and could compromise the inverter operation.
Arc fault detection (AFD)
The 2011 National Electric Code (NEC) and 2013 Canadian Electric Code (CEC) includes the requirement that a
photovoltaic system with a DC voltage greater than 80V, and which is on a building or whose DC conductors enter
a building, be equipped with a listed device which can detect a series DC arc fault and interrupt the circuit. This
functionality is commonly referred to as a DC Arc Fault Circuit Interruption. The 2014 NEC Arc Fault requirements
are not limited to systems on or in buildings and apply to all PV systems with a DC voltage greater than 80V. See
690.11 of the National Electric Code for more information.
The DC arc fault detection (AFD) solution is based on Digital Signal Processor (DSP) technology. The AFD module
has two independent channels, designed to accommodate the two independent MPPT channels associated with
all ABB string inverters, and has two current sensors and associated circuitry to identify the presence of a series
DC arc fault at the input of either inverter MPPT channel.
The DC AFD module performs a self-test every time the system is started and the inverter display shows the result,
which can only be pass or fail. If the inverter fails, an error code will be displayed and the inverter will not connect
to the grid. If it passes, the inverter connects and works normally.
If a DC arc fault is detected during normal operations, the inverter disconnects from the AC grid. The DC arc
fault error is indicated on the inverter display screen, and lock out of inverter operation is initiated until the fault is
manually reset.

T004CC1
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1- Introduction and safety
NOTE: Refer to Arc Fault Detection Self-Test Errors (-A Models Only) in the Troubleshooting,
section 5, for display error messages and instructions to reset fault conditions or manually
start the self-test procedure.
Available versions
The inverters can be divided into two groups according to their rated output power of 20.0 kW or 27.6 kW. For
inverters of equal output power, the differences between models are the congurations of the wiring box. A
description of the wiring box congurations available can be found below.
20.0 kW MODELS
TRIO-20.0-TL-OUTD-S-US-480
TRIO-20.0-TL-OUTD-S-US-480-A
TRIO-20.0-TL-OUTD-S1-US-480
TRIO-20.0-TL-OUTD-S1-US-480-A
TRIO-20.0-TL-OUTD-S1A-US-480
TRIO-20.0-TL-OUTD-S1A-US-480-A
TRIO-20.0-TL-OUTD-S1B-US-480
TRIO-20.0-TL-OUTD-S1B-US-480-A
Dimensions (HxWxD):
41.7 x 27.6 x 11.5 in
1061 x 702 x 292 mm
Weight:
157 lbs./71kg
27.6 kW MODELS
TRIO-27.6-TL-OUTD-S-US-480
TRIO-27.6-TL-OUTD-S-US-480-A
TRIO-27.6-TL-OUTD-S1-US-480
TRIO-27.6-TL-OUTD-S1-US-480-A
TRIO-27.6-TL-OUTD-S1A-US-480
TRIO-27.6-TL-OUTD-S1A-US-480-A
TRIO-27.6-TL-OUTD-S1B-US-480
TRIO-27.6-TL-OUTD-S1B-US-480-A
Dimensions (HxWxD):
41.7 x 27.6 x 11.5 in
1061 x 702 x 292 mm
Weight:
168 lbs/76kg
Wiring box congurations available
TRIO-20/27.6-TL-OUTD-S-US-480 DC Disconnect Switch
TRIO-20/27.6-TL-OUTD-S-US-480-A DC Disconnect Switch
Integrated PV AFCI Type 1 device for arc fault detection (AFD)
TRIO-20/27.6-TL-OUTD-S1-US-480
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
TRIO-20/27.6-TL-OUTD-S1-US-480-A
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
Integrated PV AFCI Type 1 device for arc fault detection (AFD)

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T004CC1
1- Introduction and safety
POWER ALARM GFI ESC UP DOWN ENTER
TRIO
Wiring box congurations available
TRIO-20/27.6-TL-OUTD-S1A-US-480
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
Class II AC Surge Protection
TRIO-20/27.6-TL-OUTD-S1A-US-480-A
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
Class II AC Surge Protection
Integrated PV AFCI Type 1 device for arc fault detection (AFD)
TRIO-20/27.6-TL-OUTD-S1B-US-480
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
AC Fused Disconnect Switch
TRIO-20/27.6-TL-OUTD-S1B-US-480-A
DC Disconnect Switch
8 string DC Input Fuses
Class II DC Surge Protection
AC Fused Disconnect Switch
Integrated PV AFCI Type 1 device for arc fault detection (AFD)
Regulatory label
Technical data in this manual does not
supersede the data on the labels afxed
to the equipment. The nameplate
shown is afxed to the inverter and
provides the following information:
1. Certication
2. Product origin
3. Model name
4. DC input data
5. AC output data
UL 1741
CSA-C22.2 No. 107.1-01
C US
®
Made in Italy
www.abb.com/solar
SOLAR GRID TIED INVERTER
UTILITY INTERACTIVE - TRANSFORMERLESS INVERTER
MODEL: TRIO-20.0-TL-OUTD-S-US-480-A
OperatingAmbient Temperature:-25 to +60 °C (-13 to +140 °F), withOutput Power Derating
Type of Enclosure: NEMA 4X
Photovoltaic Arc-Fault Circuit Protection - Type 1
( ):
1
For More Details Refer to the Instructions Manual
( ):
2
For each of the two input channels
( ):
3
Adjustable from 57.0 Hz to 59.8 Hz
( ):
4
Adjustable from 60.2 Hz to 63.0 Hz
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 undesidered operation.
Nominal Input Operating Voltage
Max. Input Voltage
Range of Input Operating Voltage
Range of Input Voltage @Full Power
Max. Input Current
Max. Input ShortCircuitCurrent (P.V. Panels
DC RATING
Nominal Output Voltage
Operating Voltage Range
Nominal Output Frequency
Operating Frequency Range
Output Power Factor
Max. Output Current
AC RATING
Max. Continuous Output Power
Max. Output Overcurrent Protection
25 A ( )( )
1 2
30 A ( )( )
1 2
700 V
1000 V ( )
1
200 - 950 V ( )
1
450 - 800 V ( )
1
60 Hz (factory preset)
59.3 ( ) - 60.5 Hz ( )
3 4
>0.995
27 A (rms)
480 V~ 3Ø
40 A (rms)
20000 W @ 45°C amb.
422-528 V~
1
2
3
4
5

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1- Introduction and safety
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T005CH2
Transportation and handling
Transportation of the equipment, especially by road, must be carried out by suitable ways and means for protecting
the components (in particular, the electronic components) from violent shocks, humidity, vibration, etc. During
handling, do not make any sudden or fast movements that can create dangerous swinging.
NOTE: During transportation the crated TRIO inverters should only be stacked three high.
For storage purposes, units in their original unopened packaging can be stacked ve high on a at
dry surface capable of withstanding the weight.
DO NOT stack with equipment or products other than those indicated or store in damaging, corrosive
environments.
Lifting
ABB packages and protects individual components using suitable means to make their transport
and subsequent handling easier. Due to the weight and complexity of this equipment, ABB
recommends the process of loading and unloading of this equipment be done by an experienced
or specialized staff knowledgeable in material handling.
Where indicated or where there is a provision, eyebolts or handles can be inserted and used as
lifting points. Do not lift several units or parts of the equipment at the same time, unless otherwise
indicated.
Incoming inspection
It is the customer’s responsibility to examine the condition of the unit. Upon receipt of the inverter,
please check the following:
• Inspect the shipping container for any external damage.
• Inventory the contents against the table below and verify receipt of all items.
• Use care not to discard any equipment, parts, or manuals.
• Call the delivering carrier if damage or shortage is detected.
2
Installation location

T006CC2
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2 - Installation
If inspection reveals damage to the inverter, contact the supplier or authorized distributor for a
repair/return determination and instructions regarding the process.
COMPONENTS FOR ALL MODELS QTY/PART NO.
(1) Mounting bracket,
(10 each) wall anchor,
screw, washer,
(1) locking screw for secur-
ing wiring box to mounting
bracket
Bracket
XAK.V0L03.0
OR
Mounting kit
XAK.V0L01.0
8 pin connector 4
82000005908-G
3 pin connector 2
82000005907-G
Torx wrench;
90°; T20; 64x23mm,
1
81510000077
COMPONENTS FOR NON-AFD MODELS ONLY QTY/PART NO
Jumpers for conguration
of parallel input channels
2 each
Reliance RAQ2-16,
ABB JB12-2
OPTIONAL COMPONENT QTY/PART NO
Optional lifting kit includes
handles and eyebolts for
lifting the inverter
1 kit M12
3M2200HNDK0

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T006CC2
2 - Installation
Handling the TRIO
The TRIO inverter and wiring box are shipped as separate components within a common
container. They are designed to be installed individually allowing an easier installation process.
The inverter unit weighs 143 pounds or less, depending on the version, and should always be
lifted by two persons.
An optional lifting kit, with handles and eyebolts for lifting the inverter, is available and can be
used to assist in hanging the inverter on the mounting bracket.