SMA 15000TL Bedienungsanleitung

Service Manual for Installers

SUNNY TRIPOWER 15000TL / 17000TL /

20000TL / 25000TL

STP15-25TL-30-SG-en-12 | Version 1.2ENGLISH

Legal Provisions

The information contained in these documents is property of SMA Solar Technology AG. Any

publication, whether in whole or in part, requires prior written approval by 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 Warranty

You can download the current warranty conditions from the Internet at www.SMA-Solar.com.

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 AG

Sonnenallee 1

34266 Niestetal

Germany

Tel. +49 561 9522-0

Fax +49 561 9522-100

www.SMA.de

Email: [email protected]

Legal Provisions SMA Solar Technology AG

Service Manual for InstallersSTP15-25TL-30-SG-en-122

Table of Contents

1 Information on this Document................................................. 4

1.1 Validity ............................................................................................... 4

1.2 Target group ...................................................................................... 4

1.3 Symbols.............................................................................................. 4

1.4 Nomenclature.................................................................................... 5

2 Safety ........................................................................................ 6

2.1 Safety Information ............................................................................. 6

2.2 Disconnecting the Inverter from Voltage Sources............................ 7

3 Cleaning the Inverter ............................................................... 11

4 Retrofitting the Surge Arrester Type II.................................... 12

5 Troubleshooting........................................................................ 13

5.1 Event Messages................................................................................. 13

5.2 Error Messages.................................................................................. 14

6 Cleaning the Fans..................................................................... 23

6.1 Cleaning the Fan at the Bottom ........................................................ 23

6.2 Cleaning the Fan on the Left-Hand Side of the Enclosure............... 24

7 Checking the Function of the Fans .......................................... 27

8 Checking the PV System for Ground Faults ........................... 28

9 Checking the Function of the Surge Arresters........................ 32

10 Replacing the Surge Arrester .................................................. 34

11 Recommissioning the Inverter ................................................. 36

12 Procedure for Receiving a Replacement Device.................... 39

13 Decommissioning the Inverter................................................. 43

14 Spare Parts ............................................................................... 45

15 Contact ...................................................................................... 46

Table of Contents

SMA Solar Technology AG

Service Manual for Installers 3STP15-25TL-30-SG-en-12

1 Information on this Document

1.1 Validity

This document describes how to rectify certain errors and how to replace defective components.

This document supplements the documents that are enclosed with each product and does not

replace any locally applicable standards or directives. Read and observe all documents supplied

with the product.

This document is valid for the following device types:

• STP 15000TL-30 (Sunny Tripower 15000TL)

• STP 17000TL-30 (Sunny Tripower 17000TL) (This device is only available as a service

product)

• STP 20000TL-30 (Sunny Tripower 20000TL)

• STP 25000TL-30 (Sunny Tripower 25000TL)

1.2 Target group

The tasks described in this document must only be performed by qualified persons. 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

Indicates a hazardous situation which, if not

avoided, will result in death or serious injury

Indicates a hazardous situation which, if not

avoided, can result in death or serious injury

Indicates a hazardous situation which, if not

avoided, can result in minor or moderate injury

Indicates a situation which, if not avoided, can

result in property damage

Information that is important for a specific topic

or goal, but is not safety-relevant

Indicates a requirement for meeting a specific

goal

1Information on this Document SMA Solar Technology AG

Service Manual for InstallersSTP15-25TL-30-SG-en-124

Symbol Explanation

Desired result

A problem that might occur

1.4 Nomenclature

Complete designation Designation in this document

SunnyTripower Inverter, product

1 Information on this Document

SMA Solar Technology AG

Service Manual for Installers 5STP15-25TL-30-SG-en-12

2 Safety

2.1 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 high voltages of the PV array

When exposed to sunlight, the PV array generates dangerous DC voltage, which is present in the

DC conductors and the live components of the inverter. Touching the DC conductors or the live

components can lead to lethal electric shocks. If you disconnect the DC connectors from the

inverter under load, an electric arc may occur leading to electric shock and burns.

• Do not touch non-insulated cable ends.

• Do not touch the DC conductors.

• Do not touch any live components of the inverter.

• Have the inverter mounted, installed and commissioned only by qualified persons with the

appropriate skills.

• If an error occurs, have it rectified by qualified persons only.

• Prior to performing any work on the inverter, disconnect it from all voltage sources as

described in this document.

Danger to life due to electric shock

Touching an ungrounded PV module or array frame can cause a lethal electric shock.

• Connect and ground the PV modules, array frame and electrically conductive surfaces so

that there is continuous conduction. Observe the applicable local regulations.

Risk of burns due to hot enclosure parts

Some parts of the enclosure can get hot during operation.

• Do not touch any parts other than the lower enclosure lid of the inverter during operation.

2Safety SMA Solar Technology AG

Service Manual for InstallersSTP15-25TL-30-SG-en-126

Damage to seals on the enclosure lids in subfreezing conditions

If you open the upper and lower enclosure lids when temperatures are below freezing, the

enclosure seals can be damaged. This can lead to moisture entering the inverter.

• Do not open the inverter at ambient temperatures lower than -5°C.

• If a layer of ice has formed on the seal of the lid when temperatures are below freezing,

remove it prior to opening the enclosure lids of the inverter (e.g. by melting the ice with

warm air). Observe the applicable safety regulations.

2.2 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.

Damage to seals on the enclosure lids in subfreezing conditions

If you open the upper and lower enclosure lids when temperatures are below freezing, the

enclosure seals can be damaged. This can lead to moisture entering the inverter.

• Do not open the inverter at ambient temperatures lower than -5°C.

• If a layer of ice has formed on the seal of the lid when temperatures are below freezing,

remove it prior to opening the enclosure lids of the inverter (e.g. by melting the ice with

warm air). Observe the applicable safety regulations.

Destruction of the measuring device due to overvoltage

• Only use measuring devices with a DC input voltage range of 1000V or higher.

Procedure:

1. Disconnect the circuit breaker from all three line conductors and secure it against

reconnection.

2. Turn the DC load-break switch to the position O.

3. If the multifunction relay is used, switch off any supply voltage to the load.

2 Safety

SMA Solar Technology AG

Service Manual for Installers 7STP15-25TL-30-SG-en-12

4. Wait until the LEDs have gone out and, if necessary, the load connected to the multifunction

relay has been switched off.

5. Use a current clamp to ensure that no current is present in the DC cables.

6. Unscrew the two screws on the DC load-break

switch using an Allen key (AF3).

7. Pull the DC load-break switch down and out of

the recess.

8. Remove all six screws from the lower enclosure

lid using an Allen key (AF 3).

9. Lift and remove the lower enclosure lid from

below.

2Safety SMA Solar Technology AG

Service Manual for InstallersSTP15-25TL-30-SG-en-128

10.

Risk of burns when touching the DC protective cover

The DC protective cover can get hot during operation.

• Do not touch the DC protective cover.

11. Release and remove all DC connectors. Insert a

slotted screwdriver or an angled screwdriver

(blade width 3.5mm) into one of the slide slots

and pull the DC connectors out downwards. Do

not pull on the cable.

12. Ensure that no voltage is present at the DC inputs of the inverter.

13. Use an appropriate measuring device to ensure

that no voltage is present at the AC connecting

terminal plate between L1 and N, L2 and N,

and L3 and N. Insert the test probe of the

multimeter into the round opening of the

terminal.

14. Use an appropriate measuring device to ensure that no voltage is present at the AC

connecting terminal plate between L1 and PE, L2 and PE, and L3 and PE. Insert the test

probe into the round opening of each terminal.

15. Ensure that no voltage is present between any terminal of the multifunction relay and PE of the

AC connecting terminal plate.

16.

Danger to life due to high voltages in the inverter

The capacitors in the inverter take 20minutes to discharge.

• Wait 20minutes before opening the upper enclosure lid.

• Do not open the DC protective cover.

2 Safety

SMA Solar Technology AG

Service Manual for Installers 9STP15-25TL-30-SG-en-12

17.

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.

2Safety SMA Solar Technology AG

Service Manual for InstallersSTP15-25TL-30-SG-en-1210

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