SMA SUNNY TRIPOWER 5000TL Operating and safety instructions

SUNNY BOY
STPTL-20-CON-RM-xx-10 | 119831-00.01 | Version 1.0
Spare-Part Set "AC/DC Terminal
Assembly" for Sunny Tripower 5000TL /
6000TL / 7000TL / 8000TL / 9000TL /
10000TL / 12000TL
NR3-STP90-CONB / NR-STP90-CONB / NR3-STP90-CON /
NR-STP90-CON / NR-STP100-CONB / NR-STP100-CON / NR-STP120-CONB / NR-
STP120-CON

STPTL-20-CON-RM-xx-102
ENGLISH Replacement Manual................................................................3
DEUTSCH Austauschanleitung.................................................................21
ČEŠTINA Návod kvýměně ....................................................................40
ΕΛΛΗΝΙΚΑ Οδηγίες αντικατάστασης........................................................58
ESPAÑOL Instrucciones para la sustitución............................................78
FRANÇAIS Instructions de remplacement................................................97
ITALIANO Istruzioni per la sostituzione ............................................... 116
NEDERLANDS Vervangingshandleiding..................................................... 134
PORTUGUÊS Manual de substituição ....................................................... 153
ROMÂNĂ Instrucțiuni de schimb .......................................................... 171
TÜRKÇE Değiştirme kılavuzu ............................................................. 190
Contact...................................................................................208

Legal Provisions
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 3
Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. 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 AG. Internal reproduction used solely for the purpose
of product evaluation or other proper use is allowed and does not require prior approval.
SMA Solar Technology AG makes no representations or warranties, 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 representations or warranties are expressly disclaimed. Neither SMA Solar
Technology AG 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 AG to make changes
to these specifications without advance notice or per contract provisions. SMA Solar Technology
AG 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.
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.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
Email: [email protected]
As of: 7/6/2020
Copyright © 2020 SMA Solar Technology AG. All rights reserved.
ENGLISH

Table of Contents SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-104
Table of Contents
1 Information on this Document................................................. 5
1.1 Validity........................................................................................................................ 5
1.2 Target Group.............................................................................................................. 5
1.3 Content and Structure of this Document ................................................................... 5
1.4 Levels of Warning Messages.................................................................................... 5
1.5 Symbols in the Document .......................................................................................... 6
1.6 Typographical Elements in the Document ................................................................ 6
1.7 Designations in the Document................................................................................... 7
2 Safety ........................................................................................ 7
2.1 Intended Use .............................................................................................................. 7
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 8
3 Component Overview ............................................................. 12
4 Scope of Delivery..................................................................... 12
5 Disconnecting the Inverter from Voltage Sources................. 13
6 Removing the CON Assembly ................................................ 15
7 Installing the CON Assembly .................................................. 16
8 Recommissioning the Inverter................................................. 18
9 Performing the VAC Test.......................................................... 19
10 Returning and Disposing of the Defective Assembly ............ 20
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1 Information on this Document
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 5
1 Information on this Document
1.1 Validity
This document is valid for:
• NR3-STP90-CONB (AC/DC terminal assembly without Bluetooth)
• NR-STP90-CONB (AC/DC terminal assembly without Bluetooth)
• NR3-STP90-CON (AC/DC terminal assembly with Bluetooth)
• NR-STP90-CON (AC/DC terminal assembly with Bluetooth)
• NR-STP100-CONB (AC/DC terminal assembly without Bluetooth)
• NR-STP100-CON (AC/DC terminal assembly with Bluetooth)
• NR-STP120-CONB (AC/DC terminal assembly without Bluetooth)
• NR-STP120-CON (AC/DC terminal assembly with Bluetooth)
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Within the SMA factory warranty, participation in an SMA training course is mandatory for
carrying out the activities described in this document. The type of training and the media used
may vary from country to country. The type and method of training can therefore vary from
country to country, but must have been completed before the service is provided.
• Outside the SMA factory warranty, SMA Solar Technology AG recommends participation in
an SMA training course to perform the activities described in this document. This ensures the
quality requirements for proper replacement of assemblies. The type of training and the media
used may vary from country to country.
• Knowledge of how to safely disconnect SMA inverters
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of all applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Content and Structure of this Document
This document describes how to replace components.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of Warning Messages
The following levels of warning messages may occur when handling the product.
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1 Information on this Document SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-106
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
Indicates a situation which, if not avoided, can result in property damage.
1.5 Symbols in the Document
Symbol Explanation
Information that is important for a specific topic or goal, but is not safety-rele-
vant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur
Example
Sections describing activities to be performed by qualified persons only
1.6 Typographical Elements in the Document
Typography Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Select Settings > Date.
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2 Safety
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 7
Typography Use Example
[Button]
[Key]
• Button or key to be selected or
pressed
• Select [Enter].
# • Placeholder for variable
components (e.g., parameter
names)
• Parameter WCtlHz.Hz#
1.7 Designations in the Document
Complete designation Designation in this document
AC/DC terminal assembly CON assembly, CON, assembly
2 Safety
2.1 Intended Use
The product must only be installed in the following SMA inverters:
Inverter without Bluetooth
Spare parts set Inverter
NR3-STP90-CONB
NR-STP90-CONB
STP5000TL-20
STP6000TL-20
STP7000TL-20
STP8000TL-20
STP9000TL-20
NR-STP100-CONB STP10000TL-20
NR-STP120-CONB STP12000TL-20
Inverter with Bluetooth
Spare parts set Inverter
NR3-STP90-CON
NR-STP90-CON
STP5000TL-20
STP6000TL-20
STP7000TL-20
STP8000TL-20
STP9000TL-20
NR-STP100-CON STP10000TL-20
NR-STP120-CON STP12000TL-20
Use SMA products only in accordance with the information provided in the enclosed
documentation and with the locally applicable laws, regulations, standards and directives. Any
other application may cause personal injury or property damage.
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2 Safety SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-108
Alterations to the SMA products, e.g., changes or modifications, are only permitted with the express
written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
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 the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient, dry place for future reference and observe all instructions contained therein.
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, electrical safety and use of the
product. SMA Solar Technology AG assumes no responsibility for the compliance or non-
compliance with such laws or codes in connection with the installation of the product.
If the replacement and all activities stated in this document are carried out by persons who are not
qualified within the meaning of this documentation, this will void the guarantee and warranty claims
and in most cases terminate the operating permit. SMA Solar Technology AG shall not be held
liable for any damage caused directly or indirectly due to such changes by unauthorized persons.
2.2 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This section contains safety information that must be observed at all times when working.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. 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
Danger to life due to electric shock when live components or cables of the
inverter are touched
High voltages are present in the conductive components or cables of the inverter. Touching live
parts and cables of the inverter results in death or lethal injuries due to electric shock.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• After disconnection, wait 5 minutes until the capacitors have discharged.
• Wear suitable personal protective equipment for all work on the product.
• Do not touch non-insulated parts or cables.
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2 Safety
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 9
DANGER
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to light, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• Do not disconnect the DC connectors under load.
• Wear suitable personal protective equipment for all work on the product.
DANGER
Danger to life due to electric shock when touching live system components in
case of a ground fault
If a ground fault occurs, parts of the system may still be live. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Disconnect the inverter from voltage sources and make sure it cannot be reconnected
before working on the device.
• Touch the cables of the PV array on the insulation only.
• Do not touch any parts of the substructure or frame of the PV array.
• Do not connect PV strings with ground faults to the inverter.
• Once disconnected from voltage sources, wait five minutes before touching any parts of the
PV system or the inverter.
WARNING
Danger to life due to fire or explosion
In rare cases, an explosive gas mixture can be generated inside the inverter under fault
conditions. In this state, switching operations can cause a fire inside the inverter or explosion.
Death or lethal injuries due to hot or flying debris can result.
• Ensure that unauthorized persons have no access to the inverter.
• Do not remove the Electronic Solar Switch (ESS) from the inverter.
• Disconnect the PV array from the inverter via an external disconnection device. If there is no
disconnecting device present, wait until no more DC power is applied to the inverter.
• Disconnect the AC circuit breaker, or keep it disconnected in case it has already tripped,
and secure it against reconnection.
• Only perform work on the inverter (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
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2 Safety SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1010
WARNING
Risk of injury due to toxic substances, gases and dusts.
In rare cases, damages to electronic components can result in the formation of toxic substances,
gases or dusts inside the inverter. Touching toxic substances and inhaling toxic gases and dusts
can cause skin irritation, burns or poisoning, trouble breathing and nausea.
• Only perform work on the inverter (e.g., troubleshooting, repair work) when wearing
personal protective equipment for handling of hazardous substances (e.g., safety gloves,
eye and face protection, respiratory protection).
• Ensure that unauthorized persons have no access to the inverter.
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000V or higher.
CAUTION
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation. Touching hot enclosure parts can
result in burn injuries.
• During operation, do not touch any parts other than the enclosure lid of the inverter.
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the inverter when temperatures are below freezing, the enclosure seals can be
damaged. This can lead to moisture entering the inverter.
• Only open the inverter if the ambient temperature is not below -5°C.
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the inverter (e.g. by melting the ice with warm air).
NOTICE
Damage to the inverter due to sand, dust and moisture
Sand, dust and moisture penetration can damage the inverter, thus impairing its functionality.
• Only open the inverter if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the inverter during a dust storm or precipitation.
• Close the inverter in case of interruption of work or after finishing work.
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2 Safety
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 11
NOTICE
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
Grounding conductor test prior to recommissioning
Prior to recommissioning SMA inverters after the installation of SMA components or power
assemblies which cannot be replaced intuitively, ensure that the grounding conductor in the
inverter is correctly connected. The function of the grounding conductor must be ensured and
all locally applicable laws, standards and directives must be observed.
Observe superordinate standards
The repair work on devices and the consideration and application of other standards which
correspond to a superordinate standard is the responsibility of the qualified person performing
the work. Unauthorized alterations will void guarantee and warranty claims and in most cases
terminate the operating license. SMA Solar Technology AG shall not be held liable for any
damage caused by such changes.
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3 Component Overview SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1012
3 Component Overview
B
C
D
E
A
Figure 1 : Overview of the components
Position Designation
A AC power controller assembly
B CON assembly
C Display
D Slot for optional add-on modules
E ESS assembly (with some versions of the CON assembly)
4 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
distributor if the scope of delivery is incomplete or damaged.
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5 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 13
Designation Quantity
CON assembly 1
Pan head screw M4x15 A2-70 15
Cable bracket 2
Replacement Manual 1
5 Disconnecting the Inverter from Voltage Sources
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
WARNING
Danger to life due to electric shock from destruction of the measuring device
due to overvoltage
Overvoltage can damage a measuring device and result in voltage being present in the
enclosure of the measuring device. Touching the live enclosure of the measuring device results in
death or lethal injuries due to electric shock.
• Only use measuring devices with a DC input voltage range of 1000V or higher.
When replacing the CON assembly, the system password will be reset.
• The system password must be reset during the first commissioning of the inverter after
replacing the assembly.
Procedure:
1. Write down the parameters set in the inverter since they can get lost during replacement.
2. Disconnect the miniature circuit breaker from all 3 line conductors and secure against
reconnection.
3. If the multifunction relay is used, switch off any supply voltage to the load.
4. Remove the ESS.
5. Loosen 2 screws of the protective cover using an Allen key (AF5) and remove the protective
cover.
6. Use a current clamp to ensure that no current is present in the DC cables.
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5 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1014
7. Make a note of the position of the plugs.
8. Release and remove all DC connectors. To do this,
insert a flat-blade screwdriver or an angled
screwdriver (blade width: 3.5mm) into one of the
side slots and pull the DC connectors straight out.
Do not pull on the cable.
9. Ensure that no voltage is present at the DC inputs of the inverter.
10. DANGER
Danger to life due to high voltages
The capacitors in the inverter take 5 minutes to discharge.
• Wait 5 minutes before opening the enclosure lid.
11. Unscrew all the screws of the enclosure lid using an Allen key (AF5) and remove the
enclosure lid.
12. Use an appropriate measuring device to ensure that no voltage is present at the AC terminal
block between L1 and N, L2 and N, and L3 and N.
13. Use an appropriate measuring device to ensure that no voltage is present at the AC terminal
block between L1 and PE, L2 and PE, and L3 and PE.
14. Ensure that no voltage is present between any terminal of the multifunction relay and PE of the
AC terminal block.
15. Discharge the AC power controller assembly at the contact points using a voltage detector
without intrinsic voltage source:
• DC+/DC-
• DC+/PE
• DC-/PE
DC+DC−PE
16. NOTICE
Damage to the inverter due to electrostatic discharge
The internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Ground yourself before touching any component.
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6 Removing the CON Assembly
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 15
6 Removing the CON Assembly
Some inverters may have an ESS assembly on the CON assembly. This ESS assembly is included in
the CON assembly at hand and therefore does not need to be removed from the disassembled
CON assembly.
Procedure:
1. Disconnect the inverter from all voltage sources (see Section5, page13).
2. Open the AC terminals and remove the insulated conductors for L1, L2, L3, and N from the
openings. Ensure that the grounding conductor connection to the enclosure of the inverter
remains intact. For this purpose, you can connect the grounding conductor to a lid fastening
structure, for example.
3. Disassemble optional add-on modules (e.g. 485 Data Module Type B).
4. If there is a protective cover in front of the multifunction relay, remove this protective cover.
5. Remove all connections on the CON assembly:
• Remove cables from the cable brackets.
• Release the connections in the terminals using a suitable screwdriver.
• Remove the plug.
Notice: The display module is only removed after removal of the assembly.
6. Remove and dispose of all CON assembly
connecting screws.
7. Remove the CON assembly by pulling it towards you.
8. Removing the display module:
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7 Installing the CON Assembly SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1016
• Unlock and remove the ribbon cable.
1
2
1
• Press all 4 feet of the display gently together
and remove the display.
1
1
1
1
2
7 Installing the CON Assembly
There are sections on this assembly with a safety extra-low voltage circuit (SELV circuit). To ensure
the safety of the circuits, an optical inspection must be carried out before installation.
A
A
Figure 2 : Position of the SELV circuits
Position Designation
A SELV circuit
Procedure:
1. Check the SELV circuit for visible dirt before mounting the assembly. If dust or other deposits
cover the assembly, it must not be used. Contact the Service.
2. Lead the cable harness through the drill hole in the CON assembly.
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7 Installing the CON Assembly
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 17
3. Ensure that both PCB centering pins are inside the
enclosure. Otherwise, the PCB centering pins must
be removed from the old assembly and placed into
the enclosure.
4. Align the CON assembly and insert it into the inverter. When doing so, lead the PCB centering
pins of the inverter enclosure through the corresponding holes in the CON assembly.
5. Tighten all connecting screws (3.5Nm). Use the
screws supplied and follow the sequence shown.
Screw 13 can be mounted if no additional modules
are required.
1
2
3 4
65 7
8
9
10
1112
13
15
14
6. Insert the cable brackets and the corresponding
black cables into the CON assembly.
7. Plug all cables into the connectors on the CON assembly. No additional tools are required for
this.
8. Make sure that all cables are securely in place by pulling on each cable.
9. Plug in all plugs on the CON assembly.
10. Reinsert the display module. Ensure that the 4 feet of the display module snap audibly into the
openings.
11. Plug the ribbon cable into the jack on the display module. Ensure that the lock hooks are
closing.
12. Reinstall optional add-on modules.
13. If present, mount the protective cover in front of the multifunction relay.
14. Insert the wires for L1, L2, L3, N and grounding conductor into the AC terminals and close the
terminals.
15. Recommission the inverter (see Section8, page18). The AC power controller assembly
might be updated automatically when the inverter is recommissioned.
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8 Recommissioning the Inverter SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1018
8 Recommissioning the Inverter
If you have disconnected the inverter from all voltage sources and want to recommission it, proceed
as follows.
Requirements:
☐ The circuit breaker must be correctly rated.
☐ The inverter must be correctly mounted.
Procedure:
1. Ensure that the grounding conductor in the inverter is correctly connected and functions
properly.
2. Carry out the necessary tests according to the locally applicable laws, standards and
directives for the correct recommissioning after power assembly replacement. Take the
requirements for component replacements into account (see Section2.2 "IMPORTANT
SAFETY INSTRUCTIONS", page8).
3. Attach the enclosure lid as follows:
• Fit 1 conical spring washer to each screw. The
grooved side of the conical spring washer must
face the screw head.
• Position the enclosure lid with the 6 screws on
the enclosure and tighten all six screws in the
sequence 1 to 6 using an Allen key (AF5)
(torque: 6Nm ± 0.5Nm).
☑ The teeth of the conical spring washer press
into the enclosure lid. This ensures that the
enclosure lid is grounded.
4. Connect the DC connector to the inverter in its original position.
5. Seal all unused DC inputs using the DC connectors with sealing plugs.
6. Secure the protective cover using 2 screws and an Allen key (AF5).
7. Securely plug in the ESS.
8. Switch on the miniature circuit breaker of all 3 line conductors.
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9 Performing the VAC Test
SMA Solar Technology AG
Replacement Manual STPTL-20-CON-RM-xx-10 19
9. If the multifunction relay is used, switch on any supply voltage to the load. The start-up phase
begins. The start-up phase may take several minutes.
LED status Explanation
The green LED is
glowing
The display alternates automatically between firmware version, serial
number or designation of the inverter, NetID, IP address, subnet
mask, configured country data set and display language.
Green LED is flashing The DC input voltage is still too low or the inverter is monitoring the
utility grid. Once the DC input voltage is sufficiently high and the grid-
connection conditions are met, the inverter starts operation.
The red LED is glow-
ing
An error message and event number appear in the display. Eliminate
the error (see the inverter manual).
10. To check the fault-less functioning of the SELV circuit check the functioning of the multifunction
relay (see inverter operating manual).
11. To check the fault-less functioning of the SELV circuit check the functioning of the Ethernet
communication by establishing a LAN connection (see inverter operating manual).
12. Perform update to the latest firmware version of the inverter (see inverter operating manual).
13. After replacing the CON assembly, make sure that the inverter is functioning properly:
• Check whether the current settings of the inverter correspond to the settings before the
assembly had been replaced. If the settings have been reset due to replacing the
assembly, adjust the settings to the parameters before the assemblies had been replaced
(see inverter manual).
• Check whether the inverter can be reached in SunnyPortal. If the inverter cannot be
reached in SunnyPortal, adjust the password in the inverter to the PV system password
(see the inverter operating manual).
14. Perform the VAC test (see Section9, page19).
9 Performing the VAC Test
Due to the replacement of the assembly, elements in the supply voltage measurement area were
replaced. To ensure that the supply voltage measurement in the inverter has the required accuracy,
the installer must carry out a VAC test.
The VAC test compares the AC voltage present in the utility grid with the AC voltage measured by
the inverter. The inverter may display up to 5V more or 1V less than the applied AC voltage.
Requirements:
☐ A measuring device suitable for the VAC measurement must be available.
☐ During measurement, devices causing fluctuations in the utility grid (e.g. other inverters) must
be switched off or set to Stop.
Procedure:
1. Log into a communication product (e.g. Sunny Explorer) using the "Installer" user group and
establish a connection to the inverter (refer to the communication product manual).
2. Set the parameter Operating mode from MPP to Stop.
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10 Returning and Disposing of the Defective Assembly SMA Solar Technology AG
Replacement ManualSTPTL-20-CON-RM-xx-1020
3. Make sure that the VAC voltage measured by the inverter is displayed. This can be done on
the display of the inverter or via the communication product.
4. Measure the AC voltage as close as possible to the inverter.
5. Compare the measured AC voltage and the AC voltage displayed on the inverter.
6. Check if the AC voltage shown on the inverter is no more than 5V above or no more than 1V
below the measured AC voltage.
7. If the AC voltage shown by the inverter is not within the given range, contact the Service.
8. Set the parameter Operating mode from Stop to MPP.
9. Ensure that the inverter feeds in correctly.
10 Returning and Disposing of the Defective Assembly
If the defective assembly is to be returned, this will be stated on the order form.
Procedure:
1. If the defective assembly is to be returned:
• Pack the defective assembly for shipping. Use the original packaging for this, or
packaging that is suitable for the weight and size of the assembly.
• Organize the return shipment to SMA Solar Technology AG. Contact the Service.
2. If the assembly is not to be returned, dispose of the assembly in accordance with the locally
applicable disposal regulations for electronic waste.
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