SMA SUNNY BOY 7700TL-US User manual

SB3-5TLUS22-BA-en-14 | Version 1.4
CA
US
PV Inverter
SUNNY BOY
3000TL-US / 3800TL-US / 4000TL-US /
5000TL-US / 6000TL-US / 7000TL-US / 7700TL-US
User Manual

SMA America, LLC Legal Provisions
User Manual SB3-5TLUS22-BA-en-14 3
Legal Provisions
Copyright © 2014 SMA America,LLC. All rights reserved.
No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior
written permission of SMA America,LLC.
Neither SMA America,LLC nor SMA Solar Technology Canada Inc. makes representations, express
or implied, with respect to this documentation or any of the equipment and/or software it may
describe, including (with no limitation) any implied warranties of utility, merchantability, or fitness for
any particular purpose. All such warranties are expressly disclaimed. Neither SMA America,LLC nor
its distributors or dealers nor SMA Solar Technology Canada Inc. nor its distributors or dealers shall
be liable for any indirect, incidental, or consequential damages under any circumstances.
(The exclusion of implied warranties may not apply in all cases under some statutes, and thus the
above exclusion may not apply.)
Specifications are subject to change without notice. Every attempt has been made to make this
document complete, accurate and up-to-date. Readers are cautioned, however, that
SMAAmerica,LLC and SMA Solar Technology Canada Inc. reserve the right to make changes
without notice and shall not be responsible for any damages, including indirect, incidental or
consequential damages, caused by reliance on the material presented, including, but not limited to,
omissions, typographical errors, arithmetical errors or listing errors in the content material.
All trademarks are recognized even if these are not marked separately. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA America, LLC
3801 N. Havana Street
Denver, CO 80239 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E
7th Floor
Mississauga, ON L4W 5K4
Canada

IMPORTANT SAFETY INSTRUCTIONS SMA America, LLC
4 SB3-5TLUS22-BA-en-14 User Manual
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the following products:
• Sunny Boy 3000TL-US (SB 3000TL-US-22)
• Sunny Boy 3800TL-US (SB 3800TL-US-22)
• Sunny Boy 4000TL-US (SB 4000TL-US-22)
• Sunny Boy 5000TL-US (SB 5000TL-US-22)
• Sunny Boy 6000TL-US (SB 6000TL-US-22)
• Sunny Boy 7000TL-US (SB 7000TL-US-22)
• Sunny Boy 7700TL-US (SB 7700TL-US-22)
This manual must be followed during installation and maintenance.
The product is designed and tested according to international safety requirements, but as with all
electrical and electronic equipment, certain precautions must be observed when installing and/or
operating the product. To reduce the risk of personal injury and to ensure the safe installation and
operation of the product, you must carefully read and follow all instructions, cautions and warnings
in this manual.
Warnings in this document
A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice,
which, if not correctly performed or adhered to, could result in damage to or destruction of part or all
of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.
Symbol Description
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE is used to address practices not related to personal injury.

SMA America, LLC Warnings on this product
User Manual SB3-5TLUS22-BA-en-14 5
Warnings on this product
The following symbols are used as product markings with the following meanings.
Symbol Description
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only be
performed as described in the documentation of the product.
Beware of hot surface
The product can become hot during operation. Do not touch the product during
operation.
Electric arc hazards
The product has large electrical potential differences between its conductors. Arc
flashes can occur through air when high-voltage current flows. Do not work on the
product during operation.
Risk of fire
Improper installation of the product may cause a fire.
Observe the operating instructions
Read the documentation of the product before working on it. Follow all safety
precautions and instructions as described in the documentation.

General Warnings SMA America, LLC
6 SB3-5TLUS22-BA-en-14 User Manual
General Warnings
General Warnings
All electrical installations must be made in accordance with the local and NationalElectrical Code®
ANSI/NFPA 70 or the Canadian Electrical Code® CSAC22.1. This document does not and is not
intended to replace any local, state, provincial, federal or national laws, regulation or codes
applicable to the installation and use of the product, including without limitation applicable
electrical safety codes. All installations must conform with the laws, regulations, codes and
standards applicable in the jurisdiction of installation. SMA assumes no responsibility for the
compliance or noncompliance with such laws or codes in connection with the installation of the
product.
The product contains no user-serviceable parts.
For all repair and maintenance, always return the unit to an authorized SMA Service Center.
Before installing or using the product, read all of the instructions, cautions, and warnings in this
manual.
Before connecting the product to the electrical utility grid, contact the local utility company. This
connection must be made only by qualified personnel.
Wiring of the product must be made by qualified personnel only.

SMA America, LLC Table of Contents
User Manual SB3-5TLUS22-BA-en-14 7
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Type Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 Sunny Boy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.2 DC Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.3 Symbols on the Type Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4 Communication Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.5 Secure Power Supply (SPS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.6 Fan Retrofit Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.7 Arc-Fault Circuit Interrupter (AFCI). . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 LED Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5 Secure Power Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6 The Message "Electr. arc detected" is displayed . . . . . . . . . . . 23
7 Cleaning the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9 Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

SMA America, LLC 1 Information on this Document
User Manual SB3-5TLUS22-BA-en-14 9
1 Information on this Document
Validity
This document is valid for the following device types from firmware version 2.10:
• Sunny Boy 3000TL-US (SB 3000TL-US-22)
• Sunny Boy 3800TL-US (SB 3800TL-US-22)
• Sunny Boy 4000TL-US (SB 4000TL-US-22)
• Sunny Boy 5000TL-US (SB 5000TL-US-22)
• Sunny Boy 6000TL-US (SB 6000TL-US-22)
• Sunny Boy 7000TL-US (SB 7000TL-US-22)
• Sunny Boy 7700TL-US (SB 7700TL-US-22)
Target Group
This document is intended for end users.
Symbols
Nomenclature
Symbol Explanation
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury
Indicates a hazardous situation which, if not avoided, can result in death or
serious injury
Indicates a hazardous situation which, if not avoided, can result in minor or
moderate injury
Indicates a situation which, if not avoided, could result in property damage
Information that is important for a specific topic or goal, but is not
safety-relevant
☐ Indicates an essential requirement for achieving a specific goal
☑ Desired result
✖ A problem that could occur
Complete designation Designation in this document
Sunny Boy Inverter, product

1 Information on this Document SMA America, LLC
10 SB3-5TLUS22-BA-en-14 User Manual
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current ‒
DC Direct Current ‒
LED Light-Emitting Diode ‒

SMA America, LLC 2 Safety
User Manual SB3-5TLUS22-BA-en-14 11
2 Safety
2.1 Intended Use
The Sunny Boy is a transformerless PV inverter which converts the direct current of a PV array into
grid-compliant alternating current and feeds it into the power distribution grid.
Figure 1: Design of a PV plant with a Sunny Boy
The inverter is suitable for indoor and outdoor use.
Alternative uses of the Sunny Boy not expressly recommended by SMA are not permitted.
For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA for this product.
The enclosed documentation is an integral part of this product.
• Read and observe the documentation.
• Keep the documentation in a convenient place for future reference.
Position Designation
APV modules input A
BPV modules input B
C Inverter with DC Disconnect
D Miniature circuit-breaker
E Loads
F Electricity meter
G Power distribution grid

2 Safety SMA America, LLC
12 SB3-5TLUS22-BA-en-14 User Manual
2.2 Safety Precautions
Danger to life from electric shock due to high voltages in the inverter
High voltages that can cause fatal electric shocks are present in the live components of the inverter.
• Do not open the inverter.
• All work on the inverter (e.g. repairs, modifications) may only be carried out by a qualified
person.
Danger to life from electric shock due to damaged devices
Operating a damaged inverter can lead to hazardous situations that result in death or serious
injuries due to electric shock.
• Only operate the inverter if it is in safe and full working order.
• Check the inverter regularly for visible damage.
• Only operate the inverter if there is no visible damage.
Risk of burns from hot surfaces
The surface of the inverter can become very hot. Touching the surface can lead to burns.
• During operation, only touch the lower enclosure lid and do not place any objects on the
enclosure. Placing objects on the enclosure can lead to power reductions due to overheating
and therefore to yield losses.
• Observe the safety messages on the inverter.
Inverter damage
Overvoltage can destroy the inverter.
• If the display message DC overvoltage - Disconnect generator is shown, inform your
installer IMMEDIATELY.

SMA America, LLC 3 Product Description
User Manual SB3-5TLUS22-BA-en-14 13
3 Product Description
3.1 Sunny Boy
The Sunny Boy is a transformerless PV inverter that converts the direct current of a PV array into
grid-compliant alternating current and feeds this into the power distribution grid.
Figure 2: Sunny Boy design
Position Designation
A Cooling fins
B Inverter type label
CDisplay
DLEDs
E DC Disconnect type labels
FDC Disconnect
GLower enclosure cover
H Upper enclosure cover

3 Product Description SMA America, LLC
14 SB3-5TLUS22-BA-en-14 User Manual
Symbols on the Inverter
3.2 Display
The display shows the current operating data of the inverter (e.g., current power, daily energy, total
energy) as well as events or error messages. The power and energy are displayed as bars in the
diagram.
Figure 3: Display layout (example)
Symbol Designation Explanation
Inverter This symbol defines the function of the
green LED. The green LED indicates the
operating state of the inverter.
Observe the documentation. This symbol defines the function of the
red LED. The red LED indicates an error.
• Contact your installer.
Communication This symbol defines the function of the
blue LED. The blue LED indicates the
communication state of the inverter.
Item Designation Explanation
A Power Current power
B Day Daily energy
C Total Total amount of energy fed in until now
kVAr
kVArh
kWh
MVArh
MWh
kW
kWh
A
B
C
D
E
F
G
H
K
L
M
I

SMA America, LLC 3 Product Description
User Manual SB3-5TLUS22-BA-en-14 15
Symbols on the Display
D Active functions Displays the activated or active functions for
communication, network system services or
temperature derating
E Line conductor Line conductor involved for the values displayed
F Event number relating to the
power distribution grid
Event number of errors relating to the power
distribution grid
G Output voltage/output current Displays output voltage and output current of a
line conductor in alternation
H Event number relating to the
inverter
Event number of errors relating to the inverter
I Input voltage/input current Displays input voltage and input current of one
input in alternation
K Event number relating to the PV
plant
Event number of errors relating to the PV plant
L Text line Displays an event message or error message
M Power and yield curve Displays the power curve of the last 16 feed-in
hours or the energy yield of the last 16 days
• In order to switch between the displays,
tap once on the enclosure lid.
Symbol Designation Explanation
Tapping You can operate the display by tapping it:
• Tapping once: to activate the backlight, to
scroll to the next text line, to switch
between the power graphs of the last
16 feed-in hours and the energy yields of
the last 16 days.
• Tapping twice: the display shows, in
succession, the firmware version, the serial
number of the inverter, the NetID, the
configured country data set and the
display language.
Telephone receiver Indicates a fault that cannot be rectified on site
• Contact your installer.
Item Designation Explanation

3 Product Description SMA America, LLC
16 SB3-5TLUS22-BA-en-14 User Manual
Wrench Indicates a fault that can be rectified on site
• Contact your installer.
Speedwire connection Indicates that communication via Speedwire is
active and there is a network connection
Webconnect function Indicates that there is a connection to Sunny
Portal
Multi-function relay Indicates that the multi-function relay is activated
Temperature symbol Indicates that the power of the inverter is limited
due to excessive temperature
Power limitation Indicates that external active power limitation via
the Power Reducer Box is active
PV array ‒
Inverter ‒
Grid relay Grid relay closed: indicates that the inverter is
feeding into the power distribution grid
Grid relay open: indicates that the inverter is
disconnected from the power distribution grid
Power distribution grid ‒
Symbol Designation Explanation

SMA America, LLC 3 Product Description
User Manual SB3-5TLUS22-BA-en-14 17
3.3 Type Labels
3.3.1 Sunny Boy
The type label provides a unique identification of the inverter. The type label is on the right-hand side
of the enclosure.
Figure 4: Layout of the type label
You will require the information on the type label to use the inverter safely and when seeking customer
support from the SMA Service Line. The type label must be permanently affixed to the inverter.
Position Designation Explanation
A Model Inverter device type
B S/N Inverter serial number
C Date of manufacture Inverter manufacture date (month/year)
D Device-specific characteristics ‒

3 Product Description SMA America, LLC
18 SB3-5TLUS22-BA-en-14 User Manual
3.3.2 DC Disconnect
The type label provides a unique identification of the DC Disconnect. The type label is on the
right-hand side of the enclosure.
Figure 5: Layout of the type label
You will require the information on the type label to use the DC Disconnect safely and when seeking
customer support from the SMA Service Line. The type label must be permanently affixed to the
DC Disconnect.
Position Designation Explanation
A Product name ‒
B Item No. DC Disconnect device type
C Date of manufacture DC Disconnect manufacture date (month/year)
D Device-specific characteristics ‒
E Serial No. DC Disconnect serial number

SMA America, LLC 3 Product Description
User Manual SB3-5TLUS22-BA-en-14 19
3.3.3 Symbols on the Type Labels
3.4 Communication Interface
The inverter can be fitted with an extra communication interface (e.g., RS485 or Speedwire with
Webconnect function). This communication interface enables the inverter to communicate with special
SMA communication products or other inverters (for information on supported products, see
www.SMA-Solar.com). The interface can be retrofitted, installed at the factory if specified in the order
or included in the scope of delivery.
You can only set the inverter parameters via SMA communication products.
Depending on the type of communication, RS485 or Speedwire, the parameters and messages are
displayed differently on the communication products.
You can set the country data set of the inverter before commissioning or within the first ten operating
hours via the two rotary switches in the inverter. You can only set all other operating parameters of
the inverter via communication products.
Symbol Designation Explanation
Danger to life due to high
voltages
The product operates at high voltages.
All work on the inverter must be carried
out by qualified persons only.
Risk of burns from hot surfaces The product can become hot during
operation. Avoid contact during
operation. Allow the product to cool
down sufficiently before carrying out
any work. Wear personal protective
equipment such as safety gloves.
Observe the documentation. Observe all documentation that is
supplied with the product.
ETL seal of approval The product has been certified as being
in accordance with the applicable
directives by ETL.
FCC seal of approval The product complies with the
requirements of the applicable FCC
standards.
Example: Displaying the country data set parameter
For communication via RS485: CntrySet parameter
For communication via Speedwire: Set country standard parameter

3 Product Description SMA America, LLC
20 SB3-5TLUS22-BA-en-14 User Manual
3.5 Secure Power Supply (SPS)
The inverter is equipped with a secure power supply by means of which an external socket-outlet can
be connected to the inverter. The socket-outlet provides current from the PV plant on demand in the
event of a grid failure (see Section 5 "Secure Power Operation", page 22). The secure power supply
also has a terminal for the fan retrofit kit, enabling an external fan to be controlled.
3.6 Fan Retrofit Kit
The fan retrofit kit is used for additional inverter cooling at high ambient temperatures (for information
on installation and configuration, see the fan retrofit kit installation manual). The fan retrofit kit can be
retrofitted, installed at the factory if specified in the order or included in the scope of delivery.
The Sunny Boy 6000TL-US, 7000TL-US and 7700TL-US are equipped with a fan as standard.
3.7 Arc-Fault Circuit Interrupter (AFCI)
In accordance with the National Electrical Code®, Article 690.11, the inverter has a system for the
recognition of electric arc detection and interruption. An electric arc with a power of 300 W or
greater must be interrupted by the AFCI within the time specified by UL 1699B. A tripped AFCI can
only be reset manually. You can deactivate the automatic arc fault detection and interruption (AFCI)
via a communication product in "Installer" mode if you do not require this function. The 2011 edition
of the National Electrical Code®, Section 690.11 stipulates that newly installed PV systems attached
to a building must be fitted with a means of detecting and disconnecting serial electric arcs (AFCI) on
the PV side.