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UserManual
SUNNY BOY 3.0-US / 3.8-US / 5.0-US /
6.0-US / 7.0-US / 7.7-US
SB30-77-1SP-US-40-BA-en-11 | Version 1.1
ENGLISH
Legal Provisions
Copyright©2016SMA Solar Technology 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, be it electronic, mechanical, photographic, magnetic or otherwise, without
the prior written permission of SMA Solar Technology America LLC.
Neither SMA Solar Technology 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 Solar Technology 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 product
improvements and field usage experience may cause SMA Solar Technology America LLC and/or
SMA Solar Technology Canada Inc. to make changes to these specifications without advance
notice, or per contract provisions in those cases where a supply agreement requires advance
notice. SMA 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.
Software licenses
The licenses for the used software modules can be called up on the user interface of the product.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
Modbus
®
is a registered trademark of SchneiderElectric and is licensed by the
ModbusOrganization,Inc.
QRCode is a registered trademark of DENSOWAVEINCORPORATED.
Phillips
®
and Pozidriv
®
are registered trademarks of PhillipsScrewCompany.
Torx
®
is a registered trademark of AcumentGlobalTechnologies,Inc.
SMASolar TechnologyAmerica LLC
6020 West Oaks Blvd.
Suite 300 Rocklin, CA 95765 U.S.A.
SMA Solar Technology Canada Inc.
2425 Matheson Blvd. E
7th Floor
Mississauga, ON L4W 5K4
Canada
Legal Provisions
SMA Solar Technology America LLC
User ManualSB30-77-1SP-US-40-BA-en-112
Important Safety Instructions
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the following products:
• SB3.0-1SP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1SP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1SP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1SP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1SP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1SP-US-40 (Sunny Boy 7.7-US)
This manual must be followed when using this product.
The product is designed and tested in accordance with 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.
Warnings on this Product
The following symbols are used as product markings with the following meanings.
Warning regarding dangerous voltage
The product works with high voltages. All work on the product must only be per-
formed 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.
Important Safety Instructions
SMA Solar Technology America LLC
User Manual 3SB30-77-1SP-US-40-BA-en-11
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.
Important Safety Instructions
SMA Solar Technology America LLC
User ManualSB30-77-1SP-US-40-BA-en-114
General Warnings
All electrical installations must be carried out in accordance with the local electrical standards
and the National Electrical Code
®
ANSI/NFPA 70 or the Canadian Electrical Code
®
CSA
C22.1. This document does not replace and is not intended to replace any local, state,
provincial, federal or national laws, regulations 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 non-compliance with such laws
or codes in connection with the installation of the product.
The product contains no user-serviceable parts.
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.
General Warnings
SMA Solar Technology America LLC
User Manual 5SB30-77-1SP-US-40-BA-en-11
Table of Contents
1 Information on this Document ................................................. 8
1.1 Validity................................................................................................ 8
1.2 Target group....................................................................................... 8
1.3 Symbols .............................................................................................. 8
1.4 Additional Information ....................................................................... 8
1.5 Nomenclature..................................................................................... 9
1.6 Typographies...................................................................................... 9
2 Safety......................................................................................... 10
2.1 Intended Use ...................................................................................... 10
2.2 Safety Information.............................................................................. 11
3 Product Description................................................................... 12
3.1 Sunny Boy........................................................................................... 12
3.2 Interfaces and Functions .................................................................... 14
3.3 LED Signals......................................................................................... 16
4 Operation of the Inverter......................................................... 18
4.1 Activating and Operating the Display.............................................. 18
4.2 Activate WPS Function....................................................................... 18
4.3 Secure Power Supply Operation ...................................................... 18
4.3.1 Activating Secure Power Supply Operation................................. 18
4.3.2 Deactivating Secure Power Supply Operation ............................ 19
5 Using the Inverter User Interface ............................................ 20
5.1 Establishing a connection to the user interface ................................ 20
5.1.1 Establishing a direct connection via WLAN................................. 20
5.1.2 Establishing a Direct Connection via Ethernet.............................. 21
5.1.3 Establishing a Connection via Ethernet in the local network....... 22
5.2 Logging In and Out of the User Interface......................................... 23
5.3 Start Page Design of the User Interface............................................ 25
5.4 Starting the Installation Assistant....................................................... 27
5.5 Changing the Password..................................................................... 29
6 Configuration of the Inverter ................................................... 30
Table of Contents
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6.1 Changing Operating Parameters...................................................... 30
6.2 Configuring the Country Data Set..................................................... 31
6.3 Deactivating the Arc-Fault Circuit Interrupter (AFCI)........................ 31
6.4 Changing the Operating Mode of the Multifunction Relay ............ 32
6.5 Configuring the Modbus Function .................................................... 33
6.6 Setting SMA OptiTrac Global Peak ................................................. 33
6.7 Saving the Configuration in a File..................................................... 34
6.8 Adopting a Configuration from a File............................................... 34
6.9 Switching the Dynamic Power Display Off....................................... 34
6.10 Switching WLAN On and Off........................................................... 35
7 Cleaning the Inverter................................................................ 36
8 Troubleshooting ........................................................................ 37
8.1 Forgotten Password............................................................................ 37
8.2 Event Messages ................................................................................. 38
8.3 Cleaning the Fan (only with Sunny Boy 7.0-US / 7.7-US) ............. 56
8.4 Checking the PV System for Ground Faults...................................... 59
8.5 Resetting the Operation Inhibition after Detection of an Arc Fault . 62
8.6 Updating the Firmware...................................................................... 63
9 Accessories ................................................................................ 65
10 Compliance Information........................................................... 66
11 Contact....................................................................................... 67
Table of Contents
SMA Solar Technology America LLC
User Manual 7SB30-77-1SP-US-40-BA-en-11
1 Information on this Document
1.1 Validity
This document is valid for the following device types:
• SB3.0-1SP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1SP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1SP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1SP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1SP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1SP-US-40 (Sunny Boy 7.7-US)
1.2 Target group
This document is intended for qualified persons and end users. Only qualified persons are allowed
to perform the activities marked in this document with a warning symbol and the caption
"Qualifiedperson". Tasks that do not require any particular qualification are not marked and can
also be performed by end users. Qualified persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of the applicable standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Symbols
Symbol Explanation
Sections describing activities to be performed by qualified persons
only
Information that is important for a specific topic or goal, but is not
safety-relevant
Indicates a requirement for meeting a specific goal
Desired result
A problem that might occur
1.4 Additional Information
Links to additional information can be found at www.SMA-Solar.com:
Document title Document type
Mounting, installation, commissioning and decommissioning Installation Manual
1 Information on this Document
SMA Solar Technology America LLC
User ManualSB30-77-1SP-US-40-BA-en-118
Document title Document type
"Application for SMAGridGuard Code" Form
"Webconnect Systems in SunnyPortal"
Registration in SunnyPortal
User Manual
"SMAModbus® Interface"
Information on the commissioning and configuration of the SMA
Modbus interface
Technical Information
"SunSpec® Modbus® Interface"
Information on the commissioning and configuration of the SunSpec
Modbus interface
Technical Information
"SMA Modbus® Interface"
List with the product specific SMA Modbus registers
Technical Information
"SunSpec® Modbus® Interface"
List with the product specific SunSpec Modbus registers
Technical Information
1.5 Nomenclature
Complete designation Designation in this document
SunnyBoy Inverter, product
SMA Solar Technology America LLC SMA
SMA Solar Technology Canada Inc.
1.6 Typographies
Typography Use Example
bold
• Display texts
• Elements on a user interface
• Terminals
• Elements to be selected
• Elements to be entered
• The value can be found in
the field Energy.
• Select Settings.
• Enter 10 in the field
Minutes.
>
• Connects several elements to be
selected
• Select Settings > Date.
[Button]
[Key]
• Button or key to be selected or
pressed
• Select [Next].
1 Information on this Document
SMA Solar Technology America LLC
User Manual 9SB30-77-1SP-US-40-BA-en-11
2 Safety
2.1 Intended Use
The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to
grid-compliant alternating current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
All components must remain within their permitted operating ranges at all times.
The product must only be operated with PV arrays (PV modules and cabling) that are approved by
the electrical standards applicable on-site and the NationalElectricalCode
®
ANSI/NFPA 70 or
the CanadianElectricalCode
®
CSA C22.1.
No galvanic isolation
The product is not equipped with a transformer and therefore has no galvanic isolation.
• Do not operate grounded PV modules together with the product. If grounded PV modules
are connected to the product, an event will occur which will appear on the product
display. The event will also be displayed, along with the associated message, in the event
list on the user interface of the product.
• Only ground the mounting frames of the PV modules.
• The neutral conductor of the AC output is not bonded to ground within the product.
• The neutral conductor of the AC output for secure power supply operation is bonded to
ground within the product.
PV modules with a high capacity to ground may only be used if their coupling capacity does not
exceed 2.5 μF.
To protect the PV system against excessive reverse currents under fault conditions, the National
Electrical Code
®
, Section 690.9, requires overcurrent protection for PV source circuits where
possible short-circuit currents exceed the ampacity of source circuit conductors or the maximum
series fuse rating of the PV modules. Typically, this requires string fusing where more than two
strings are combined in parallel. Where overcurrent protection is required, National Electrical
Code
®
, Section 690.35, requires that both positive and negative conductors have overcurrent
protection for ungrounded PV arrays.
The product must only be used in countries for which it is approved or released by SMA and the
grid operator.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most
cases terminate the operating license. SMA shall not be held liable for any damage caused by
such changes.
Any use of the product other than that described in the Intended Use section does not qualify as
appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
2 Safety
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User ManualSB30-77-1SP-US-40-BA-en-1110
The type label must remain permanently attached to the product.
2.2 Safety Information
This section contains safety information that must be observed at all times when working on or with
the product.
To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
Danger to life due to electric shock in case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live components can lead
to lethal electric shocks.
• Ensure that no voltage is present and wait five minutes before touching any parts of the PV
system or the inverter.
Risk of burns from hot surfaces
The surface of the inverter can get very hot. Touching the surface can result in burns.
• Mount the inverter in such a way that it cannot be touched inadvertently.
• Do not touch hot surfaces.
• Wait 30 minutes for the surface to cool sufficiently.
• Observe the safety messages on the inverter.
Damage to the inverter due to moisture and dust intrusion
Dust or moisture intrusion can damage the inverter and impair its functionality.
• Close all enclosure openings of the inverter tightly.
• Never open the inverter when it is raining or snowing, or the humidity is over 95%.
Damage to the display or the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid of the Connection Unit, the
enclosure lid of the Power Unit, the type label, the display and the LEDs with a damp cloth
and clear water only.
2 Safety
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User Manual 11SB30-77-1SP-US-40-BA-en-11
3 Product Description
3.1 Sunny Boy
The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to
grid-compliant alternating current and feeds it into the utility grid.
Figure 1: Design of the SunnyBoy
Position Designation
A Power Unit
B Enclosure lid of the Power Unit
C Enclosure lid for the Connection Unit
D Connection Unit
E DC load-break switch
The inverter is equipped with a DC load-break switch. If the DC load-break switch is
set to the position I, it establishes a conductive connection between the PV array
and the Power Unit. Switching the DC load-break switch to the O position will inter-
rupt the DC electric circuit.
3 Product Description
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User ManualSB30-77-1SP-US-40-BA-en-1112
Position Designation
F Inverter type label
The type label uniquely identifies the inverter. You will require the information on
the type label to use the product safely and when seeking customer support from
the SMAServiceLine. The type label must remain permanently attached to the
product. You will find the following information on the type label:
• Device type (Model)
• Serial number (SerialNo.)
• Date of manufacture
• Device-specific characteristics
G Fan (only with Sunny Boy 7.0 and 7.7)
H Type label of the Connection Unit
The type label clearly identifies the Connection Unit. The type label must remain
permanently attached to the product. You will find the following information on the
type label:
• Identification key (PIC) for registration in Sunny Portal
• Registration ID (RID) for registration in Sunny Portal
• WLAN password (WPA2-PSK) for the direct connection to the user interface
of the inverter via WLAN
I Display
The display shows the current operating data and events or errors.
K LEDs
The LEDs indicate the operating state of the inverter.
Symbols on the Inverter and on the Type Label
Symbol Explanation
Inverter
Together with the green LED, this symbol indicates the operating state of the in-
verter.
Observe the documentation
Together with the red LED, this symbol indicates an error.
Data transmission
Together with the blue LED, this symbol indicates the status of the network con-
nection.
Equipment Grounding Terminal
This symbol indicates the position for the connection of an equipment ground-
ing conductor.
3 Product Description
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User Manual 13SB30-77-1SP-US-40-BA-en-11
Symbol Explanation
Warning label with FCC Compliance and IC Compliance
Risk of burns due to hot surfaces
The product can get hot during operation. Avoid contact during operation.
Prior to performing any work on the product, allow the product to cool down
sufficiently.
Danger to life due to electric shock
The product operates at high voltages. Prior to performing any work on the
product, disconnect the product from voltage sources. All work on the product
must be carried out by electrically qualified persons only.
Observe the documentation
Observe all documentation supplied with the product.
UL1741 is the standard applied by Underwriters Laboratories to the product
to certify that it meets the requirements of the National Electrical Code
®
, the
Canadian Electrical Code
®
CSA C22.1; the IEEE929‑2000 and IEEE1547.
3.2 Interfaces and Functions
The inverter is equipped with the following interfaces and functions:
User interface for the monitoring and configuration of the inverter
The inverter is standard-equipped with an integrated web server, which provides a user interface for
configuring and monitoring the inverter. The inverter user interface can be called up via the web
browser if there is an existing WLAN or Ethernet connection to a computer, tablet PC or
smartphone.
SMA Speedwire
The inverter is equipped with SMA Speedwire as standard. SMA Speedwire is a type of
communication based on the Ethernet standard. This enables inverter-optimized 10 or 100Mbit
data transmission between Speedwire devices in PV systems and the user interface of the inverter.
Class 1 wiring methods are to be used for field wiring connection to the terminals of the
communication interface.
3 Product Description
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User ManualSB30-77-1SP-US-40-BA-en-1114
SMA Webconnect
The inverter is equipped with a Webconnect function as standard. The Webconnect function
enables direct data transmission between the inverters of a small-scale system and the Internet
portal SunnyPortal without any additional communication device and for a maximum of 4 inverters
per SunnyPortal system. In large-scale PV power plants with more than 4 inverters, there is the
option of establishing data transmission between the inverters and the SunnyPortal web-based
monitoring platform via the SMAClusterController or to distribute the inverters over several plants
in the SunnyPortal. If there is an existing WLAN or Ethernet connection, you can directly access
your Sunny Portal system via the web browser on the computer, tablet PC or smartphone.
WLAN
The inverter is equipped with a WLAN interface as standard. The inverter is delivered with the
WLAN interface activated as standard. If you do not want to use WLAN, you can deactivate the
WLAN interface.
In addition, the inverter has a WPS (WiFi Protected Setup) function. The WPS function is for
automatically connecting the inverter to a device in the same network as the inverter (e.g. router,
computer, tablet PC or smartphone).
Expanding the radio range in the WLAN network
In order to expand the radio range of the inverter in the WLAN network, you can install the
Antenna Extension Kit accessory set in the inverter.
Modbus
The inverter is equipped with a Modbus interface. The Modbus interface is deactivated by default
and must be configured as needed.
The Modbus interface of the supported SMA devices is designed for industrial use and has the
following tasks:
• Remote query of measured values
• Remote setting of operating parameters
• Setpoint specifications for system control
Parallel Operation of the DC Inputs A and B
The DC inputs A and B of the inverter can be operated in parallel and up to three strings can be
connected to it in parallel. As a result, as opposed to normal operation, up to three strings can be
connected directly to inverters with two DC inputs and up to four strings to inverters with three DC
inputs. The inverter automatically detects the parallel operation of the DC inputs A and B.
Module slots
The inverter is standard-equipped with two module slots. The module slots are located on the
communication assembly and allow additional modules to be connected (e.g. SMA Sensor
Module). The modules are available as accessories. The installation of two identical modules is not
permissible.
3 Product Description
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User Manual 15SB30-77-1SP-US-40-BA-en-11
Secure power supply operation
You can connect an external outlet and a switch to the inverter in order to activate the outlet. In
case of a grid failure, the outlet supplies a load with current from the PV system. When the outlet is
activated via the switch, the load is supplied with current from the PV system. The inverter
automatically regulates the energy supply of the outlet depending on the solar irradiation on the PV
system. When the outlet is activated and a load is supplied with current from the PV system, the
inverter is disconnected from the utility grid and does not feed into the utility grid.
Do not connect loads that require a stable electricity supply to the outlet for secure
power supply operation
Secure power supply operation must not be used for loads that require a stable electricity
supply. The power available during secure power supply operation depends on the solar
irradiation on the PV system. Therefore, power output can fluctuate considerably depending
on the weather or may not be available at all.
• Do not connect loads to the outlet for secure power supply operation if they are
dependent on a stable electricity supply for reliable operation.
Multifunction relay
The inverter is equipped with a multifunction relay as standard. The multifunction relay is a
multifunctional interface that can be configured for the operating mode used by a particular system.
Arc-Fault Circuit Interrupter (AFCI)
In accordance with the National Electrical Code
®
, Article 690.11, the inverter has a system for arc
fault detection and interruption.
An electric arc with a power of 300W or greater must be interrupted by the AFCI in the time
specified by UL 1699B. A detected electric arc causes the inverter to interrupt feed-in operation: In
order to restart feed-in operation, the feed-in operation must be activated manually. If the
installation conditions allow it, you can deactivate the arc-fault circuit interrupter.
3.3 LED Signals
The LEDs indicate the operating state of the inverter.
3 Product Description
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User ManualSB30-77-1SP-US-40-BA-en-1116
LED Status Explanation
Green LED flashing: 2s on
2s off
Waiting for connection conditions
The conditions for feed-in operation are not yet met. As
soon as the conditions are met, the inverter will start feed-
in operation.
flashing: 1.5s on
0.5s off
Secure power supply operation
The secure power supply operation is activated and the in-
verter supplies the outlet with current from the PV system.
flashing quickly Update of central processing unit
The central processing unit of the inverter is being up-
dated.
glowing Feed-in operation
(Power: ≥90%, relative to the active power limit set)
The inverter feeds in with a power of at least 90%.
pulsing Feed-in operation
(Power: ≥ 20% to max. 90%, relative to the set active
power limit)
The inverter is equipped with a dynamic power display via
the green LED. The green LED pulses faster or slower, de-
pending on the power. If necessary, you can switch off the
dynamic power display via the green LED.
Red LED glowing Event occurred
In addition to the glowing red LED, the display indicates
the following information about the event:
• Event type
• Event number
• Date and time at wich the event occurred
Blue LED flashes slowly for
approx. one
minute
Communication connection is being established
The inverter is establishing a connection to a local network
or is establishing a direct connection to an end device via
Ethernet (e.g. computer, tablet PC or smartphone).
flashes quickly for
approx. two min-
utes
WPS active
The WPS function is active.
glowing Communication active
There is an active connection with a local network or there
is a direct connection with an end device via Ethernet (e.g.
computer, tablet PC or smartphone).
3 Product Description
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User Manual 17SB30-77-1SP-US-40-BA-en-11
4 Operation of the Inverter
4.1 Activating and Operating the Display
You can activate and operate the display by tapping on the enclosure lid of the Connection Unit.
Procedure:
1. Activate the display. Tap on the enclosure lid of the Connection Unit once.
☑ The backlight is switched on.
2. To move to the next message, tap on the enclosure lid of the Connection Unit once.
4.2 Activate WPS Function
• Tap twice on the enclosure lid of the Connection Unit.
☑ The blue LED flashes quickly for approx. two minutes.
4.3 Secure Power Supply Operation
4.3.1 Activating Secure Power Supply Operation
If an outlet and a switch for secure power supply operation are connected to the inverter, you can
supply a load with current from the PV system in case of a grid failure during the day. If you
activate the secure power supply operation, the inverter supplies loads that are connected to the
outlet for secure power supply operation.
In case of overload, underload or insufficient solar irradiation, the voltage supply of the outlet is
briefly interrupted. The inverter automatically attempts to reestablish the voltage supply 20seconds
after the interruption. This can lead to inadvertent starting of the load that is connected to the outlet.
Ensure that the load connected to the outlet does not consume too much power. If necessary,
reduce the power consumption of the load.
In case of a grid failure during the night, secure power supply operation is not
possible
During the night, secure power supply operation cannot be activated since the PV system does
not produce power that is required to supply the load.
• In case of a grid failure during the night, do not activate secure power supply operation.
• Continue to operate the inverter on the utility grid and wait for restoration of grid
operation.
• In the event of a persistent grid failure, switch to secure power supply operation after
sunrise.
4 Operation of the Inverter
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Do not connect loads that require a stable electricity supply to the outlet for secure
power supply operation
Secure power supply operation must not be used for loads that require a stable electricity
supply. The power available during secure power supply operation depends on the solar
irradiation on the PV system. Therefore, power output can fluctuate considerably depending
on the weather or may not be available at all.
• Do not connect loads to the outlet for secure power supply operation if they are
dependent on a stable electricity supply for reliable operation.
Procedure:
1. If no load is connected to the outlet, connect a load.
2. Turn the switch of the outlet to secure power supply operation.
3. Wait one minute.
☑ The inverter commences secure power supply operation. As soon as the inverter supplies the
outlet with power, the green LED flashes (1.5s on and 0.5s off) and the message SPS-mode
active is shown in the display along with the amount of power being supplied from the
inverter to the outlet. In addition, the control light of the outlet for secure power supply
operation glows.
✖ The green LED does not flash and no message that the secure power supply operation mode is
activated appears on the display or the control lamp of the outlet does not glow?
The output power of the PV system is too low. Irradiation on the PV system is probably too low
or the connected load requires more power than currently available.
• Ensure that the outlet's switch is set to secure power supply operation.
• If irradiation is too low, wait for it to increase.
• Connect a load with lower power consumption to the outlet.
✖ No voltage can be measured at the outlet?
• Ensure that the outlet's switch is set to secure power supply operation.
• Ensure that the switch, outlet and control light for secure power supply operation are
correctly connected.
4.3.2 Deactivating Secure Power Supply Operation
1. If necessary, disconnect the load from the outlet.
2. Turn the switch of the outlet to grid operation.
☑ Grid operation is activated.
3. Switch on the circuit breaker of the PV system.
☑ The inverter connects to the utility grid and starts feed-in operation.
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5 Using the Inverter User Interface
5.1 Establishing a connection to the user interface
5.1.1 Establishing a direct connection via WLAN
Requirements:
☐ The inverter must be commissioned.
☐ A computer, tablet PC or smartphone with WLAN interface must be available.
☐ In the case of a computer connection, one of the following web browsers must be installed:
Firefox (as of version 25), Internet Explorer (as of version 10), Safari (as of version 7), Opera
(as of version 17) or Google Chrome (as of version 30).
☐ In the case of a tablet PC or smartphone connection, one of the following web browsers must
be installed: Firefox (as of version 25), Safari (as of version iOS7) or Google Chrome (as of
version 29).
☐ The personal SMA Grid Guard code of the Installer must be available for the changing of
grid-relevant settings after completion of the first ten operating hours (see "Application for
SMAGridGuard Code" at www.SMA-Solar.com).
Inverter SSID and IP address and necessary passwords
• Inverter SSID in WLAN: SMA[serial number] (e.g. SMA2130019815)
• Standard WLAN password (usable for initial configuration to completion of the first ten
operating hours): SMA 12345
• Device-specific WLAN password (usable for initial configuration to completion of the first
ten operating hours): see WPA2-PSK on the type label of the inverter or on the back of
the manual included in the delivery
• Standard IP inverter address for a direct connection via WLAN outside of a local
network: 192.168.12.3
Importing and exporting files with end devices having an iOS operating system is
not possible.
For technical reasons, importing and exporting files (e.g. importing an inverter configuration,
saving the current inverter configuration or exporting events) is not possible with mobile end
devices having an iOS operating system.
• Use an end device that does not have an iOS operating system for importing and
exporting files.
The procedure can be different depending on the terminal devices used (e.g. computer, tablet PC
or smartphone). If the procedure described does not apply to your device, establish the direct
connection via WLAN as described in the manual of your device.
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Procedure:
1. If your computer, tablet PC or smartphone has a WPS function:
• Activate the WPS function on the inverter. To do this, tap twice on the enclosure lid of the
Connection Unit.
☑ The blue LED flashes quickly. The WPS function is active.
• Activate the WPS on your device.
☑ The connection with your device will be established automatically. It can take up to
20seconds for this connection to be established.
2. If your computer, tablet PC or smartphone does not have a WPS function:
• Search for WLAN networks with your device.
• Select the SSID of the inverter SMA[serial number] in the list with the found WLAN
networks.
• Enter the inverter WLAN password. Within the first 10 operating hours, you must use the
standard WLAN password SMA12345. After the first 10 operating hours, you must use
the device-specific WLAN password (WPA2-PSK) of the inverter. The WLAN password
(WPA2-PSK) is printed on the type label.
3. Enter the IP address 192.168.12.3 or, if your device supports mDNS services, SMA[serial
number].local in the address line of the web browser and press the enter key.
4.
Web browser signals a security vulnerability
After the IP address has been confirmed by pressing the enter key, a message might
appear indicating that the connection to the user interface of the inverter is not secure.
SMA guarantees that calling up the user interface is secure.
• Continue loading the user interface.
☑ The login page of the user interface opens.
5.1.2 Establishing a Direct Connection via Ethernet
Requirements:
☐ The inverter must be commissioned.
☐ A computer with an Ethernet interface must be available.
☐ The inverter must be connected directly to a computer.
☐ One of the following web browsers must be installed: Firefox (as of version 25), Internet
Explorer (as of version 10), Safari (as of version 7), Opera (as of version 17) or Google
Chrome (as of version 30).
☐ The personal SMA Grid Guard code of the Installer must be available for the changing of
grid-relevant settings after completion of the first ten operating hours (see certificate
"Application for SMAGridGuard Code" at www.SMA-Solar.com).
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Importing and exporting files with end devices having an iOS operating system is
not possible.
For technical reasons, importing and exporting files (e.g. importing an inverter configuration,
saving the current inverter configuration or exporting events) is not possible with mobile end
devices having an iOS operating system.
• Use an end device that does not have an iOS operating system for importing and
exporting files.
Procedure:
1. Tap on the enclosure lid of the Connection Unit and continue to switch up to the message E-IP:
169.254.xxx.xxx.
2. Read off the displayed IP address for the direct connection via Ethernet and either remember it
or write it down.
3. Open the web browser of your device, enter the IP address in the address line of the web
browser and press the enter key.
4.
Web browser signals a security vulnerability
After the IP address has been confirmed by pressing the enter key, a message might
appear indicating that the connection to the user interface of the inverter is not secure.
SMA guarantees that calling up the user interface is secure.
• Continue loading the user interface.
☑ The login page of the user interface opens.
5.1.3 Establishing a Connection via Ethernet in the local
network
New IP address for connecting with a local network
If the inverter is connected to a local network via a network cable (e.g. via a router), the
inverter will receive a new IP address. Depending on the type of configuration, the new IP
address will be assigned automatically by the DHCP server (router) or manually by you. Upon
completion of the configuration, the inverter is only reachable via this new IP address or the
alternative addresses.
Access addresses of the inverter:
• Generally applicable access address, e.g. for android products: IP address manually
assigned or assigned by the DHCP server (router) (identification via network scanner
software or router manual).
• Alternative access address for Apple products: SMA[serial number].local (e.g.
SMA2130019815.local)
• Alternative access address for certain Windows products: SMA[serial number] (e.g.
SMA2130019815)
Requirements:
☐ The inverter must be connected to the local network via a network cable (e.g. via a router).
☐ The inverter must be integrated in the local network.
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☐ A computer, tablet PC or smartphone must be available and the computer, tablet PC or
smartphone must be connected with the network to which the inverter is also connected.
☐ In the case of a computer connection, one of the following web browsers must be installed:
Firefox (as of version 25), Internet Explorer (as of version 10), Safari (as of version 7), Opera
(as of version 17) or Google Chrome (as of version 30).
☐ In the case of a tablet PC or smartphone connection, one of the following web browsers must
be installed: Firefox (as of version25), Safari (as of version iOS7) or Google Chrome (as of
version29).
☐ The personal SMA Grid Guard code of the Installer must be available for the changing of
grid-relevant settings after completion of the first ten feed-in hours (see certificate "Application
for SMAGridGuard Code" at www.SMA-Solar.com).
Importing and exporting files with end devices having an iOS operating system is
not possible.
For technical reasons, importing and exporting files (e.g. importing an inverter configuration,
saving the current inverter configuration or exporting events) is not possible with mobile end
devices having an iOS operating system.
• Use an end device that does not have an iOS operating system for importing and
exporting files.
Procedure:
1. Open the web browser of your device, enter the IP address of the inverter in the address line
of the web browser and press the enter key.
2.
Web browser signals a security vulnerability
After the IP address has been confirmed by pressing the enter key, a message might
appear indicating that the connection to the user interface of the inverter is not secure.
SMA guarantees that calling up the user interface is secure.
• Continue loading the user interface.
☑ The login page of the user interface opens.
5.2 Logging In and Out of the User Interface
After a connection to the user interface of the inverter has been established, the login page opens.
Log onto the user interface as described below.
Usage of cookies
For the correct display of the user interface, cookies are required. The cookies are used for
convenience only. By using this user interface you agree to the placement of cookies.
Log in as installer or user for the first time
Procedure:
1. In the drop-down list Language, select the desired language.
2. In the User group drop-down list, select the entry Installer or User.
3. In the New password field, enter a new password for the selected user group.
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4. In the Repeat password field, enter the new password again.
5. Select Login.
☑ The Configuring the Inverter page or the user interface start page opens.
Log in as the User or Installer
1. In the drop-down list Language, select the desired language.
2. In the User group drop-down list, select the entry Installer or User.
3. Enter the password in the field Password.
4. Select Login.
☑ The start page of the user interface opens.
Log Out as the User or Installer
1. On the right-hand side of the menu bar, select the menu User Settings.
2. In the subsequent context menu, select [Logout].
☑ The login page of the user interface opens. The logout was successful.
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5.3 Start Page Design of the User Interface
A
B
C
E
F
D
Figure 2: Start Page Design of the User Interface
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Position Designation Description
A Menu Provides the following functions:
• Home
Opens the user interface homepage
• Instantaneous values
Current measured values of the inverter
• Device Parameters
The various operating parameters of the inverter can
be viewed and configured here depending on the
user group.
• Events
All events that have occurred in the selected time
period are displayed here. The event types are
Information, Warning and Error. Currently
existing events of the types Error and Warning will
be additionally displayed in the Device status
viewlet. However, only the higher-priority event is
displayed. If, for example, there is a Warning and an
Error present at the same time, only the Error will be
displayed.
• System Configuration
The following settings for the inverter can be
performed here. The selection available is dependent
on which user group you are logged in as and the
operating system of the device with which the user
interface has been called up.
– Changing device names
– Updating firmware (not available with devices
having an iOS operating system)
– Saving a configuration to file (not available with
devices having an iOS operating system)
– Loading a configuration from a file (not
available with devices having an iOS operating
system)
– Importing a proxy certificate (not available with
devices having an iOS operating system)
B User settings Provides the following functions, depending on the user
group logged in:
• Start the installation assistant
• SMA Grid Guard login
• Logout
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Position Designation Description
C Help Provides the following functions:
• Displaying information on Open Source licenses used
• Link to the website of SMA
D Status bar Displays the following information:
• Inverter serial number
• Inverter firmware version
• IP address of the inverter within the local network
and/or IP address of the inverter during WLAN
connection
• User group logged in
• Date and device time of the inverter
E PV power curve Temporal progression of the PV power of the household
over the selected time period.
F Status display The various areas display information on the current status
of the PV system.
• Device status
Displays whether the inverter is currently in a fault-
free operating state or whether there is an event type
Error or Warning present.
• Current power
Displays the power currently being generated by the
inverter.
• Yield
Displays the energy yield of the inverter.
• Feed-in management
Displays whether the inverter is currently limiting its
active power.
5.4 Starting the Installation Assistant
The installation assistant leads you step-by-step through the steps necessary for the initial
configuration of the inverter.
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Layout of the installation assistant
A
C
B
Figure 3: Layout of the installation assistant
Position Designation Description
A Configuration steps Overview of the installation assistant steps. The number of
steps depends on the type of device and the additionally
installed modules. The current step is highlighted in blue.
B User information Information about the current configuration step and the
setting options of the configuration step.
C Configuration field You can make settings in this field.
Requirement:
☐ When configuring after completion of the first ten operating hours, the SMA Grid Guard code
must be available (see "Application for SMAGridGuard Code" at www.SMA-Solar.com).
Procedure:
1. Activate the user interface (see Section5.1, page20).
2. Log in as Installer.
3. Select the menu User Settings (see Section5.3, page25) on the start page of the user
interface.
4. In the context menu, select [Start the installation assistant].
☑ The Installation Assistant will open.
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5.5 Changing the Password
The password for the inverter can be changed for both user groups. Furthermore, the user group
Installer can change the password for the user group User as well as its own password.
PV systems registered in a communication product
With PV systems that are registered in a communication product (e.g. SunnyPortal,
ClusterController), you can also assign a new password for the user group Installer via the
communication product. The password for the user group Installer is also the system
password. If you assign a password for the user group Installer via the user interface of the
inverter that does not correspond to the system password in the communication product, the
inverter can no longer be reached by the communication product.
• Ensure that the password for the user group Installer is the same as the system password
in the communication product.
Procedure:
1. Activate the user interface (see Section5.1, page20).
2. Log into the user interface (see Section5.2, page23).
3. Call up the menu Device Parameters.
4. Select [Edit parameters].
5. In the parameter group User Rights > Access Control change the password of the desired
user group.
6. Select [Save all] to save the changes.
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6 Configuration of the Inverter
6.1 Changing Operating Parameters
The operating parameters of the inverter are set to certain values by default. You can change the
operating parameters to optimize the performance of the inverter.
This section describes the basic procedure for changing operating parameters. Always change
operating parameters as described in this section. Some function-sensitive parameters can only be
viewed by qualified persons and can only be changed by qualified persons by entering the
personal SMA Grid Guard code.
No configuration via SunnyExplorer
SunnyExplorer does not support the configuration of inverters with their own user interface.
The inverter can be detected via SunnyExplorer, however it is expressly not recommended to
use SunnyExplorer to configure this inverter. SMA does not accept liability for missing or
incorrect data and possibly resulting yield losses.
• Use the user interface for the configuration of the inverter.
Requirements:
☐ The changes to the grid-relevant parameters must be approved by the grid operator.
☐ When changing grid-relevant parameters, the SMAGridGuardcode must be available (see
"Application for SMAGridGuard Code" at www.SMA-Solar.com).
Procedure:
1. Activate the user interface (see Section5.1, page20).
2. Log into the user interface (see Section5.2, page23).
3. Call up the menu Device Parameters.
4. Select [Edit parameters].
5. Log in using the SMA Grid Guard code to change those parameters designated by a lock
(only for installers):
• Select the menu User Settings (see Section5.3, page25).
• In the subsequent context menu, select [SMA GridGuard login].
• Enter the SMA Grid Guard code and select [Login].
6. Expand the parameter group that contains the parameter which is to be configured.
7. Change the desired parameters.
8. Select [Save all] to save the changes.
☑ The inverter parameters are set.
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Accepting the settings
Saving the made settings is indicated by an hourglass symbol on the user interface. If the DC
voltage is sufficient, the data is transferred directly to the inverter and accepted. If the DC
voltage is too low (e.g. in the evening), the settings are saved, but they cannot be directly
transferred to or accepted by the inverter. As long as the inverter has not yet received and
accepted the settings, the hourglass symbol will continue to be displayed on the user interface.
The settings will be accepted when there is sufficient DC voltage applied and the inverter
restarts. As soon as the hourglass symbol appears on the user interface, the settings have been
saved. The settings will not be lost. You can log off of the user interface and leave the system.
6.2 Configuring the Country Data Set
As standard, the inverter is meant for connection to a utility grid with a 208V wye connection or a
240V split-phase system, and the associated country data set UL1741/2010/120 is factory-set.
If the default country data set does not correspond with the grid configuration, the country data set
can be adapted to the connected grid configuration.
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
Grid configuration Country data set
208Vdelta connection UL1741/2010/208
208 V wye connection UL1741/2010/120
240 V delta connection UL1741/2010/240
240V split-phase system UL1741/2010/120
Procedure:
• Select the parameter Set country standard and set the required country data set.
6.3 Deactivating the Arc-Fault Circuit Interrupter (AFCI)
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
Procedure:
• Select the parameter AFCI switched on or AfciIsOn and set to No.
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6.4 Changing the Operating Mode of the Multifunction
Relay
The default operating mode of the multifunction relay is Fault indication (FltInd) . If you decide to
use another operating mode and have established the correct electrical connection for this
operating mode and the associated connection variant, you will have to change the operating
mode of the multifunction relay and make other settings, if necessary.
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
Procedure:
1. Select the parameter Operating mode of multifunction relay or Mlt.OpMode and set the
desired operating mode.
2. Once you have set the operating mode Self-consumption or SelfCsmp, you can configure
other settings:
• Select the parameter Minimum On power for MFR self-consumption or
Mlt.MinOnPwr and set the desired value. This will configure the power threshold from
which a load is to be activated.
• Select the parameter Minimum power On time, MFR self-consumption or
Mlt.MinOnPwrTmm and set the desired value. This will configure the minimum time for
which the power must have exceeded the minimum switch-on power threshold in order to
trip activation of the load.
• Select the parameter Minimum On time for MFR self-consumption or
Mlt.MinOnTmm and set the desired value. This will configure the minimum time for
which the load remains activated.
3. If you have set the operating mode Control via communication or ComCtl, select the
parameter Status of MFR with control via communication or Mlt.ComCtl.Sw and set the
desired value. This will configure the status at which the multifunction relay is controlled via a
communication product.
4. If you have set the operating mode Battery bank or BatCha, make further settings:
• Select the parameter Minimum On power for MFR battery bank or
Mlt.BatCha.Pwr and set the desired value. This will configure the power threshold from
which the battery is to be charged.
• Select the parameter Minimum time before reconnection of MFR battery bank or
Mlt.BatCha.Tmm and set the desired value. This will configure the minimum time which
must elapse after charging the battery before the battery can be charged again.
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6.5 Configuring the ModbusFunction
The Modbus interface is deactivated by default and the communication ports 502 set. In order to
access SMA invertes with SMA Modbus
®
or SunSpec
®
Modbus
®
, the Modbus interface must be
activated. After activating the interface, the communication ports of both IP protocols can be
changed.
For information on commissioning and configuration of the Modbus interface, see the Technical
Information "SMAModbus® Interface" or in the Technical Information "SunSpec® Modbus®
Interface" at www.SMA-Solar.com.
For information on which Modbus registers are supported, see the Technical Descriptions "SMA
Modbus® Interface" or "SunSpec® Modbus® Interface" at www.SMA-Solar.com.
Data security during activated Modbus interface
If you activate the Modbus interface, there is a risk that unauthorized users may access and
manipulate the data or devices in your PV system.
• Take appropriate protective measures such as:
– Set up a firewall.
– Close unnecessary network ports.
– Only enable remote access via VPN tunnel.
– Do not set up port forwarding at the communication port in use.
– In order to deactivate the Modbus interface, reset the inverter to default settings.
Procedure:
• Activate the Modbus interface and adjust the communication ports if necessary (see the
Technical Information "SMAModbus® Interface" or "SunSpec® Modbus® Interface" at
www.SMA-Solar.com).
6.6 Setting SMA OptiTrac Global Peak
For partially shaded PV modules, you should set the interval at which the inverter is to optimize the
MPP of the PV system. If you do not want to use SMAOptiTracGlobalPeak feature, you can
deactivate the feature.
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
Procedure:
• Select the parameter Cycle time of the OptiTrac Global Peak algorithm or
MPPShdw.CycTms and set the required time interval. The ideal time interval is usually six
minutes. This value should only be increased if the shading situation changes extremely slowly.
☑ The inverter optimizes the MPP of the PV system at the predetermined time interval.
• In order to deactivate the SMAOptiTracGlobalPeak feature, select the parameter OptiTrac
Global Peak switched on or set MPPShdw.IsOn to Off.
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6.7 Saving the Configuration in a File
You can save the current configuration of the inverter in a file. You can use this file as a data
backup for this inverter and then import this file into this inverter again or another inverter to
configure the inverter. When saving, only the device parameters will be saved, not any passwords.
Procedure:
1. Activate the user interface (see Section5.1, page20).
2. Log into the user interface (see Section5.2, page23).
3. Select the menu System Configuration.
4. Select [Settings].
5. In the context menu, select [Saving the configuration in a file].
6. Follow the instructions in the dialog.
6.8 Adopting a Configuration from a File
To configure the inverter, you can adopt the configuration from a file. To be able to do this, you
must first save the configuration of another inverter in a file (see Section6.7 "Saving the
Configuration in a File", page34). When saving, only the device parameters will be adopted, not
any passwords.
Requirements:
☐ The SMA Grid Guard code must be available (see "Application for SMAGridGuard Code"
at www.SMA-Solar.com).
☐ Changes to grid-relevant parameters must be approved by the responsible grid operator.
Procedure:
1. Activate the user interface (see Section5.1, page20).
2. Log into the user interface as an Installer.
3. Select the menu System Configuration.
4. Select [Settings].
5. In the context menu, select [Adopting the configuration from a file].
6. Follow the instructions in the dialog.
6.9 Switching the Dynamic Power Display Off
As standard, the inverter signals its power dynamically via the pulsing of the green LED. When
doing so, the LED flashes on and off uniformly or is permanently lit at full power. The various
gradations are related here to the set active power limit of the inverter. If this display is not desired,
switch this function off in accordance with the following procedure. Once this has been done, the
green LED is lit permanently to signalize feed-in operation.
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
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Procedure:
• In the parameter group Device > Operation, select the parameter Dynamic power
display via green LED and set this to Off.
6.10 Switching WLAN On and Off
The inverter is equipped with an activated WLAN interface as standard. If you do not want to use
WLAN, you can switch the WLAN function off and switch it on again whenever needed. In doing
so, you can switch the WLAN direct connection and the WLAN connection in the local network on
independently of each other.
Switching on the WLAN function only possible via Ethernet connection
If you switch off both the WLAN function for the direct connection and for the connection in
the local network, access to the inverter user interface and therefore reactivation of the WLAN
interface is only possible via an Ethernet connection.
The basic procedure for changing operating parameters is explained in another section (see
Section6.1 "Changing Operating Parameters", page30).
Switching WLAN Off
If you would like to switch the WLAN function off completely, you must switch off both the direct
connection and the connection in the local network.
Procedure:
• To switch off the direct connection in the parameter group PV system communication >
WLAN, select the parameter Soft-access-point is turned on and set this to No.
• To switch off the connection in the local network in the parameter group PV system
communication > WLAN, select the parameter WLAN is turned on and set this to No.
Switching WLAN On
If you have switched the WLAN function for direct connection or for connection in the local network
off, you can switch the WLAN function back on in accordance with the following procedure.
Requirement:
☐ If the WLAN function was previously switched off completely, the inverter must be connected
to a computer or router via Ethernet.
Procedure:
• To switch on the WLAN direct connection, in the parameter group PV system
communication > WLAN, select the parameter Soft-access-point is turned on and set this
to Yes.
• To switch on the WLAN connection in the local network, in the parameter group System
communication > WLAN, select the parameter WLAN is turned on and set this to Yes.
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7 Cleaning the Inverter
Damage to the display or the type label due to the use of cleaning agents
• If the inverter is dirty, clean the enclosure, the enclosure lid of the Connection Unit, the
enclosure lid of the Power Unit, the type label, the display and the LEDs with a damp cloth
and clear water only.
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8 Troubleshooting
8.1 Forgotten Password
If you have forgotten the password for the inverter, you can unlock the inverter with a Personal
Unlocking Key (PUK). For each inverter, there is one PUK for each user group (User and Installer).
Useful hint: With PV systems in SunnyPortal, you can also assign a new password via SunnyPortal
for the user group Installer. The password for the user group Installer is the same as the system
password in SunnyPortal.
Procedure:
1. Request PUK (application form available at www.SMA-Solar.com).
2. Activate the user interface (see Section5.1, page20).
3. Enter the PUK instead of the password into the field Password.
4. Call up the menu Device Parameters.
5. Select [Edit parameters].
6. In the parameter group User Rights > Access Control change the password of the desired
user group.
7. Select [Save all] to save the changes.
PV Systems in SunnyPortal
The password for the user group Installer is also the system password for the PV system in
SunnyPortal. Changing the password of the user group Installer can lead to the inverter no
longer being able to be reached by SunnyPortal.
• Assign the changed password of the user group Installer as the new system password in
SunnyPortal (see the SunnyPortal user manual at www.SMA-Solar.com).
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 37SB30-77-1SP-US-40-BA-en-11
8.2 Event Messages
Event number Message, cause and corrective measures
101 to 105
Grid fault
The grid voltage or grid impedance at the connection point of the inverter is
too high. The inverter has disconnected from the utility grid.
Corrective measures:
• Ensure that the correct country data set has been configured (see
Section6.2, page31).
• Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid
conditions, contact the grid operator. The grid operator must agree with
an adjustment of the voltage at the feed-in point or with a change of the
monitored operating limits.
If the grid voltage is permanently within the permissible range and this
message is still displayed, contact the Service (see Section11 "Contact",
page67).
202 to 206
Grid fault
The utility grid has been disconnected, the AC cable is damaged or the grid
voltage at the connection point of the inverter is too low. The inverter has dis-
connected from the utility grid.
Corrective measures:
• Make sure that the circuit breaker is switched on.
• Ensure that the AC cable is not damaged and that it is connected
correctly.
• Ensure that the country data set has been configured correctly.
• Check whether the grid voltage at the connection point of the inverter is
permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid
conditions, contact the grid operator. The grid operator must agree with
an adjustment of the voltage at the feed-in point or with a change of the
monitored operating limits.
If the grid voltage is permanently within the permissible range and this
message is still displayed, contact the Service (see Section11 "Contact",
page67).
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User ManualSB30-77-1SP-US-40-BA-en-1138
Event number Message, cause and corrective measures
401to 404
Grid fault
The inverter has disconnected from the utility grid. A stand-alone grid or a very
large change in the power frequency was detected.
Corrective measures:
• Check the grid connection for significant short-term frequency fluctuations.
501
Grid fault
The power frequency is not within the permissible range. The inverter has dis-
connected from the utility grid.
Corrective measures:
• If possible, check the power frequency and observe how often
fluctuations occur.
If fluctuations occur frequently and this message is displayed often,
contact the grid operator and request approval to change the operating
parameters of the inverter.
If the grid operator gives his approval, discuss any changes to the
operating parameters with Service (see Section11 "Contact", page67).
601
Grid fault
The inverter has detected an excessively high proportion of direct current in
the grid current.
Corrective measures:
• Check the grid connection for direct current.
• If this message is displayed frequently, contact the grid operator and
check whether the monitoring threshold on the inverter can be raised.
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User Manual 39SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
701
Frq. not permitted > Check parameter
The power frequency is not within the permissible range. The inverter has dis-
connected from the utility grid.
Corrective measures:
• If possible, check the power frequency and observe how often
fluctuations occur.
If fluctuations occur frequently and this message is displayed often,
contact the grid operator and request approval to change the operating
parameters of the inverter.
If the grid operator gives his approval, discuss any changes to the
operating parameters with Service (see Section11 "Contact", page67).
1001
L/N swapped > Check connection
The connection of L and N is swapped.
Corrective measures:
• Ensure that L and N are correctly connected (see installation manual).
1302
Waiting for grid voltage > Installation failure grid connection > Check
grid and fuses
L or N not connected.
Corrective measures:
• Ensure that L and N are connected (see installation manual).
• Ensure that the AC conductors are not damaged and correctly connected
(see installation manual).
• Make sure that the circuit breaker is switched on.
1501
Reconnection fault grid
The changed country data set or the value of a parameter you have set does
not correspond to the local requirements. The inverter cannot connect to the
utility grid.
Corrective measures:
• Ensure that the country data set has been configured correctly. To do this,
select the parameter Set country standard and check the value.
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User ManualSB30-77-1SP-US-40-BA-en-1140
Event number Message, cause and corrective measures
3301 to 3303
Unstable operation
There is not enough power at the DC input of the inverter for stable operation.
The inverter cannot connect to the utility grid.
Corrective measures:
• Ensure that the PV array is designed correctly.
• Ensure that the PV array is not covered by snow or otherwise shaded.
• Ensure that the PV array is free of errors.
3401 to 3407
DC overvoltage > Disconnect generator
Overvoltage at the DC input. This can destroy the inverter.
This message is signalized additionally by rapid flashing of the LEDs.
Corrective measures:
• Disconnect the inverter from voltage sources immediately (see
installation manual).
• Check whether the DC voltage is below the maximum input voltage of
the inverter. If the DC voltage is below the maximum input voltage of the
inverter, reconnect the connecting terminal plate with the connected DC
conductors to the inverter.
• If the DC voltage exceeds the maximum input voltage of the inverter,
ensure that the PV array has been correctly rated or contact the installer
of the PV array.
• If this message is repeated frequently, contact the Service (see
Section11 "Contact", page67).
3501
Insulation failure > Check generator
The inverter has detected a ground fault in the PV array.
Corrective measures:
• Check the PV system for ground faults (see Section8.4, page59).
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 41SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
3601
High discharge curr. > Check generator
The leakage current of the inverter and the PV array is too high. There is a
ground fault, a residual current or a malfunction.
The inverter interrupts feed-in operation immediately after exceeding a thresh-
old. When the fault is eliminated, the inverter automatically reconnects to the
utility grid.
Corrective measures:
• Check the PV system for ground faults (see Section8.4, page59).
3701
Resid.curr.too.high > Check generator
The inverter has detected a residual current due to temporary grounding of the
PV array.
Corrective measures:
• Check the PV system for ground faults (see Section8.4, page59).
3801
DC overcurrent > Check generator
Overcurrent at the DC input. The inverter briefly interrupts feed-in operation.
Corrective measures:
• If this message is displayed frequently, ensure that the PV array has been
correctly rated and wired.
3901 to 3902
Waiting for DC start conditions > Start cond. not met
The feed-in conditions for the utility grid are not yet fulfilled.
Corrective measures:
• Ensure that the PV array is not covered by snow or otherwise shaded.
• Wait for higher irradiation.
• If this message is displayed frequently in the morning, increase the
voltage limit for starting grid feed-in. Change the parameter Critical
voltage to start feed-in.
• If this message is displayed frequently with medium irradiation, ensure
that the PV array is correctly rated.
8 Troubleshooting
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User ManualSB30-77-1SP-US-40-BA-en-1142
Event number Message, cause and corrective measures
4301
Electric arc detected > Check DC generator
The inverter has detected an electric arc. The inverter interrupts grid feed-in
and cannot connect to the utility grid.
Corrective measures:
• Resetting the operation inhibition after detection of an arc fault (see
Section8.5, page62).
6512
Minimum operating temperature not reached
The inverter will only recommence grid feed-in once the temperature has
reached at least −25°C.
6701 to 6702
Communication disturbed
Error in the communication processor, the inverter continues feeding in, how-
ever. The cause must be determined by the Service.
Corrective measures:
• If this message is displayed frequently, contact the Service (see
Section11 "Contact", page67).
6803
Self-diagnosis > Input A defective
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section11 "Contact", page67).
6903
Self-diagnosis > Input B defective
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section11 "Contact", page67).
7106
Update file defect.
The update file is defective. The update failed. The inverter continues feeding
power into the grid.
7110
No update file found
No new update file was found on the SD memory card. The update failed.
The inverter continues feeding power into the grid.
7112
Update file successfully copied
7113
The memory card is full or write-protected
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 43SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
7303
Update main CPU failed
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section11 "Contact", page67).
7324
Wait for update conditions
The testing of the update conditions was not successful. The firmware update
package is not suitable for this inverter.
Corrective measures:
• Retry update.
• Ensure that the selected update file is suitable for this inverter.
• If this message is displayed again, contact the Service (see Section11
"Contact", page67).
7331
Update transport started
Update file is being copied.
7332
Update transport successful
Update file was copied successfully to the inverter's internal memory.
7333
Update transport failed
Update file could not be copied to the inverter's internal memory. In the event
of connection with the inverter via WLAN, a poor connection quality can be
the cause.
Corrective measures:
• Retry update.
• For WLAN connection, improve the WLAN connection quality (e.g. via
SMA Antenna Extension Kit) or establish connection with the inverter via
Ethernet.
• If this message is displayed again, contact the Service (see Section11
"Contact", page67).
7340
Update communication failed
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User ManualSB30-77-1SP-US-40-BA-en-1144
Event number Message, cause and corrective measures
7347
Incompatible file
The configuration file is not suitable for this inverter.
Corrective measures:
• Ensure that the selected configuration file is suitable for this inverter.
• Retry import.
7348
Incorrect file format
The configuration file is not of the required format or is damaged.
Corrective measures:
• Ensure that the selected configuration file is of the required format and is
not damaged.
• Retry import.
7350
Transfer of a configuration file has started
The configuration file is being transferred.
7351
Update WLAN
The inverter is updating the WLAN module.
7352
Update of WLAN not successful
The update of the WLAN module failed.
Corrective measures:
• Retry update.
• If this message is displayed again, contact the Service (see Section11
"Contact", page67).
7353
Update time zone database
The inverter is updating the time zone database.
7354
Update of time zone database not successful
The update of the time zone database failed.
Corrective measures:
• Retry update.
• If this message is displayed again, contact the Service (see Section11
"Contact", page67).
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 45SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
7355
Update WebUI
The inverter is updating the inverter user interface.
7356
Update of the WebUI not successful
The update of the inverter user interface failed.
Corrective measures:
• Retry update.
• If this message is displayed again, contact the Service (see Section11
"Contact", page67).
7619
Communication fault with meter unit > Check communication to meter
The inverter is not receiving any data from the energy meter.
Corrective measures:
• Ensure that the energy meter is correctly integrated into the same network
as the inverter (see energy meter manual).
• For WLAN connection, improve the WLAN connection quality (e.g. via
SMA Antenna Extension Kit) or connect the inverter with the DHCP server
(router) via Ethernet.
8003
Active power limited derating
The inverter has reduced its power output for more than ten minutes due to ex-
cessive temperature.
Corrective measures:
• Clean the cooling fins on the rear of the enclosure and the air ducts on
the top using a soft brush.
• Ensure that the inverter has sufficient ventilation.
• Ensure that the ambient temperature +45°C (113°F) has not been
exceeded.
• Ensure that the inverter is not exposed to direct solar irradiation.
8 Troubleshooting
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User ManualSB30-77-1SP-US-40-BA-en-1146
Event number Message, cause and corrective measures
8206
Electr. arc detected > Please confirm by tapping
The inverter has detected an electric arc and was recommissioned after a dis-
connection. By tapping, you are confirming that you have repaired any possi-
ble damage to PV modules, DC conductors or plugs in the PV system.
Corrective measures:
• Tap on the enclosure lid of the Connection Unit within ten seconds of the
message appearing in order to recommission the inverter.
8503
Self-diagnosis > Input C defective
The cause must be determined by the Service.
Corrective measures:
• Contact the Service (see Section11 "Contact", page67).
8708
Timeout in communication for active power limitation
Communication to the system control absent. Depending on the fall-back set-
ting, either the last received values will be retained or the active power will be
limited to the set percentage value of the inverter nominal power.
Corrective measures:
• Ensure that the connection to the system manager (e.g.
SunnyHomeManager) is intact and that no cables are damaged or that
no plugs have been pulled.
8801 to 8803
No display
No information can be shown on the display.
9002
SMA Grid Guard code invalid
The SMAGridGuard code entered is incorrect. The operating parameters are
still protected and cannot be changed.
Corrective measures:
• Enter the correct SMAGridGuard code.
9003
Grid parameter locked
Changes to the grid parameters are now blocked. In order to be able to make
changes to the grid parameters, from now on you must log in using the SMA
Grid Guard code.
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User Manual 47SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
9005
Changing of grid parameters not possible > Ensure DC supply
This error can have the following causes:
• The parameters to be changed are protected.
• The DC voltage at the DC input is not sufficient to run the main CPU.
Corrective measures:
• Enter the SMA Grid Guard code.
• Ensure that at least the DC start voltage is available (green LED is
flashing, pulsing or glowing).
9202
SPS AC overvoltage
An AC source has been connected to the socket connection for secure power
supply operation.
Corrective measures:
• Check the connection at the SPS slots, and make any necessary
corrections.
9203
Short circuit in the SPS power outlet
The maximum initial load has been overshot or the appliance's initial current is
above the maximum permissible load current of the connection for secure
power supply operation for more than 5s.
Corrective measures:
• Reduce the load at the connection for secure power supply operation.
• If necessary, select an appliance with a lower initial current.
10110
Time synchronization failed: [x]
No time information could be called up from the set NTP server.
Corrective measures:
• Ensure that the NTP server was configured correctly.
• Ensure that the inverter is integrated into a local network with Internet
connection.
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User ManualSB30-77-1SP-US-40-BA-en-1148
Event number Message, cause and corrective measures
10248 to 10249
Load reduced through device reduction or increase of query interval
The network is busy. Data exchange between the devices is not at an optimum
and is greatly delayed.
Corrective measures:
• Reduce the number of devices in the network.
• If necessary, increase the data query intervals.
• If necessary, reduce the number of devices in the network.
10250
[Interface]: package error rate [ok / high]
The package error rate has changed. If the package error rate is high, the net-
work is overloaded or the connection to the network switch or DHCP server
(router) is disturbed.
Corrective measures if the package error rate is high:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• If necessary, increase the data query intervals.
• If necessary, reduce the number of devices in the network.
10251
[Interface]: communication status goes to [OK / Warning / Error /
Not connected]
The communication status to the network switch or DHCP server (router) has
changed. An additional error message may be displayed.
10252
[Interface]: communication disrupted
There is no valid signal on the network line.
Corrective measures:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• Ensure that the DHCP server (router) and any network switches are
signalizing correct operation.
8 Troubleshooting
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User Manual 49SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
10253
[Interface]: connection speed goes to [100Mbit / 10Mbit]
The data transfer rate has changed. The cause for the status [10 Mbit] can be
a defective plug, a defective cable or the pulling or plugging of the network
connector.
Corrective measures if the status is [10 Mbit]:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• Ensure that the DHCP server (router) and any network switches are
signalizing correct operation.
10254
[Interface]: duplex mode goes to [Full / Half]
The duplex mode (data transfer mode) has changed. The cause for the status
[Half] can be a defective plug, a defective cable or the pulling or plugging of
the network connector.
Corrective measures if the status is [Half]:
• Ensure that with an Ethernet connection, the network cable and the
network connector are not damaged and that the network connectors are
correctly plugged.
• Ensure that the DHCP server (router) and any network switches are
signalizing correct operation.
10255
[Interface]: Network load OK
The network load has returned to a normal range after being busy.
10282
[User group]-Login via [protocol] locked
After several incorrect login attempts, login has been blocked for a limited
time. In this case, the User login will be blocked for 15minutes, the
GridGuard login for 12hours.
Corrective measures:
• Wait until the given time has expired and then retry login.
10283
WLAN module faulty
The WLAN module integrated in the inverter is defective.
Corrective measures:
• Contact the Service (see Section11 "Contact", page67).
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User ManualSB30-77-1SP-US-40-BA-en-1150
Event number Message, cause and corrective measures
10284
No WLAN connection possible
The inverter does not currently have a WLAN connection to the selected net-
work.
Corrective measures:
• Ensure that the SSID, the WLAN password and the encryption method
have been entered correctly. The encryption method is specified by your
WLAN router or WLAN Access Point and can be changed there.
• Ensure that the WLAN router or WLAN Access Point is in range and is
signalizing correct operation.
• If this message is displayed often, improve the WLAN connection by
using a WLAN repeater (e.g. SMA Antenna Extension Kit).
10285
WLAN connection established
Connection to the selected WLAN network has been established.
10286
WLAN connection lost
The inverter has lost WLAN connection to the selected network.
Corrective measures:
• Ensure that the WLAN router or WLAN Access Point is still active.
• Ensure that the WLAN router or WLAN Access Point is in range and is
signalizing correct operation.
• If this message is displayed often, improve the WLAN connection by
using a WLAN repeater (e.g. SMA Antenna Extension Kit).
10339
Webconnect enabled
The inverter can communicate with Sunny Portal without an additional SMA
communications product (e.g. Cluster Controller).
10340
Webconnect disabled
The Webconnect function has been switched off. This means that the inverter
can not communicate with Sunny Portal without an additional SMA communi-
cations product (e.g. Cluster Controller).
• If the inverter is to communicate with Sunny Portal without an additional
SMA communication product, switch the Webconnect function on.
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User Manual 51SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
10341
Webconnect error: no connection
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10343
Webconnect error: Default gateway not configured
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10344
Webconnect error: DNS server not configured
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10345
No reply to DNS request
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
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Event number Message, cause and corrective measures
10346
SIP proxy DNS resolution failed
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10347
Stun server DNS resolution failed
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10348
Webconnect error: No reply to request to STUN server
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
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User Manual 53SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
10349
Webconnect error: No reply to SIP option packs
It is likely that there is an error in the network settings or a Sunny Portal mainte-
nance message is present.
Corrective measures:
• If a Sunny Portal maintenance message is present, wait until the
maintenance has been completed.
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10350
Webconnect error: Registration rejected by SIP registrar
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10351
Unknown SIP registry
It is likely that there is an error in the network settings.
Corrective measures:
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
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Event number Message, cause and corrective measures
10352
Webconnect error: Faulty communication
It is likely that there is an error in the network settings or a Sunny Portal mainte-
nance message is present.
Corrective measures:
• If a Sunny Portal maintenance message is present, wait until the
maintenance has been completed.
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
10353
Webconnect error: registration of the SIP registry has not responded
It is likely that there is an error in the network settings or a Sunny Portal mainte-
nance message is present.
Corrective measures:
• If a Sunny Portal maintenance message is present, wait until the
maintenance has been completed.
• Check the network components (DLAN, WLAN Access Point etc.).
• Ensure that the following ports are not blocked:
– Registrar: ied.sma.de:9523
– Proxy: ied.sma.de:9523
– Stun: stun.sma.de:3478
– Domain: ied.sma.de (for SIP URI)
27107
Update file OK
The update file is suitable for this inverter and its components and is fully avail-
able for the next update step.
27108
Memory card is being read
The storage medium is being read.
27109
No new update on the memory card
A new update file was not found on the storage medium.
27301
Update communication
The inverter is updating the communication component.
27302
Update main CPU
The inverter is updating the inverter component.
27312
Update completed
The inverter has successfully completed the update.
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 55SB30-77-1SP-US-40-BA-en-11
Event number Message, cause and corrective measures
27331
Update transport started
The inverter has successfully started the update.
27332
Update transport successful
The update file has been successfully transferred to the communication compo-
nent.
29001
Inst. code valid
The entered GridGuard code is valid. Protected parameters have now been
unlocked and you can adjust the parameters. The parameters will be automati-
cally locked again after ten feed-in hours.
29004
Grid parameters unchanged
Changing the grid parameters is not possible.
8.3 Cleaning the Fan (only with Sunny Boy 7.0-US / 7.7-
US)
Procedure:
• Remove and clean the fan.
• Install the fan.
Removing and Cleaning the Fan
1.
Danger to life due to high voltages
• Disconnect the inverter from any voltage sources (see the inverter installation manual).
2. Remove the cover of the plug. To do this hold the
ribbed surface at the top and button and push
the cover as far as possible to the right.
3. Remove the plug from the bracket.
8 Troubleshooting
SMA Solar Technology America LLC
User ManualSB30-77-1SP-US-40-BA-en-1156
4. Unlock and remove the plug.
5. Unscrew the screws with a Torx screwdriver
(TX20).
6. Remove the fan guard from the enclosure
opening.
7. Remove the fan from the fan guard. To do this,
slightly raise the locking tabs and push the fan
slightly forward. Remove the fan and the cable
together with the plug from the fan guard.
8.
Damage to the fan due to compressed air
• Clean the fan only with a soft brush, a paint brush, or a damp cloth.
8 Troubleshooting
SMA Solar Technology America LLC
User Manual 57SB30-77-1SP-US-40-BA-en-11
Installing the Fan
1. Lead the cable into the fan guard and hold the cable at the plug under tension.
2. Insert the fan into the fan guard until it locks into
place under the locking tabs. To do this, one
arrow must point backwards and one arrow
must point upwards.
3. Insert the fan guard into the enclosure opening.
To do this, the fan guide must point upwards.
4. Tighten the screws with a Torx screwdriver
(TX20).
5. Insert the plug in the pin connector and clamp
the plug into the bracket.
8 Troubleshooting
SMA Solar Technology America LLC
User ManualSB30-77-1SP-US-40-BA-en-1158
… 58 …

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