SMA Solar Technology Sunny Tripower 15000TL User manual

ServiceManual
SUNNYTRIPOWER15000TL/ 17000TL
STP15-17TL-10-SG-en-10 | Version 1.0 AMERICAN ENGLISH

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. A lack of identification does
not mean that a product or symbol is not trademarked.
The BLUETOOTH® word mark and logos are registered trademarks of BluetoothSIG,Inc. and any
use of these marks by SMASolarTechnologyAG is under license.
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.
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SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
E-mail: [email protected]
© 2004 to 2014 SMA Solar Technology AG. All rights reserved.
Legal Provisions SMA Solar Technology AG
Service ManualSTP15-17TL-10-SG-en-102

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................................................................ 9
4 Troubleshooting ........................................................................ 10
4.1 LED Signals......................................................................................... 10
4.2 Event Messages ................................................................................. 10
4.3 Error Messages .................................................................................. 11
5 Cleaning the Fans ..................................................................... 23
5.1 Cleaning the Fan at the Bottom......................................................... 23
5.2 Cleaning the Fan on the Left-Hand Side of the Enclosure ............... 24
6 Checking the Function of the Fans........................................... 27
7 Checking the PV System for Ground Faults............................ 28
8 Checking the Function of the Varistors.................................... 31
9 Replacing the Varistors ............................................................ 33
10 Checking the Function of the Surge Arresters ........................ 34
11 Replacing the Surge Arrester................................................... 36
12 Recommissioning the Inverter.................................................. 38
13 Decommissioning the Inverter ................................................. 40
14 Spare Parts................................................................................ 42
15 Contact....................................................................................... 43
Table of Contents
SMA Solar Technology AG
Service Manual 3STP15-17TL-10-SG-en-10

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-10 (Sunny Tripower 15000TL)
• STP 17000TL-10 (Sunny Tripower 17000TL)
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
Desired result
A problem that might occur
1 Information on this Document SMA Solar Technology AG
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1.4 Nomenclature
Complete designation Designation in this document
SunnyTripower Inverter, product
ElectronicSolarSwitch ESS
SMA BLUETOOTH Wireless Technology BLUETOOTH
1 Information on this Document
SMA Solar Technology AG
Service Manual 5STP15-17TL-10-SG-en-10

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 uninsulated 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 (see Section2.2 "Disconnecting the Inverter from Voltage
Sources", page7).
Danger to life due to electric shock
Touching an ungrounded PV module or array frame can cause a fatal 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
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Damage to the seal of the enclosure lids in subfreezing conditions
If you open the upper and lower enclosure lids in subfreezing conditions, the seals on the
enclosure lids 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 in subfreezing conditions, 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.
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, the type label, the display and
the LEDs with a damp cloth only.
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.
Destruction of the measuring device due to overvoltage
• Only use measuring devices with a DC input voltage range of 1,000 V or higher.
Procedure:
1. Disconnect the circuit breaker from all three line conductors and secure against reconnection.
2. If the multifunction relay is used, switch off any supply voltage to the load.
3. Test whether there is an acoustic signal.
If an acoustic signals sounds and the display shows an error message that prohibits
disconnecting the ESS, wait until dark. The ESS can only be disconnected once it is dark.
If no acoustic signal sounds and the display does not show an error message, remove the ESS.
4. Wait until the LEDs and the display have gone out.
5. Remove all six screws from the lower enclosure
lid using an Allen key (AF3).
2 Safety
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6. Flip the lower enclosure lid up and remove it.
7.
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.
8. 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
into each round opening of the terminal.
9. 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 each round opening of the terminal.
10. If you are using the multifunction relay, ensure that no voltage is present between any of the
terminals on the multifunction relay and PE on the AC connecting terminal plate.
11. Use a current clamp to ensure that no current is present in the DC cables.
12. 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.
13.
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.
14.
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.
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3 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, the type label, the display and
the LEDs with a damp cloth only.
3 Cleaning the Inverter
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Service Manual 9STP15-17TL-10-SG-en-10

4 Troubleshooting
4.1 LED Signals
The LEDs indicate the operating state of the inverter.
LED Status Explanation
Green LED glowing Feed-in operation
If an event occurs during feed-in operation, an event mes-
sage will be shown on the display (for event messages see
the service manual at www.SMA-Solar.com).
flashing The conditions for feed-in operation are not yet met. As
soon as the conditions are met, the inverter will start feed-
in operation.
Red LED glowing Error
If an error occurs, the error message and the correspond-
ing event number will be shown in the display. The error
must be rectified by a qualified person (for troubleshoot-
ing, see the service manual at www.SMA-Solar.com).
Blue LED glowing BLUETOOTH communication is activated.
4.2 Event Messages
Display message Cause
Self-test The self-test is in progress.
Set parameter The parameter changes are being adopted.
Parameters set successfully The parameter changes were successfully adopted.
Update file OK The update file found is valid.
SD card is read The SD memory card is searched for update files and the update file
is checked.
No new update SD card The SD memory card contains an update file that has already been
used.
Update communication The inverter is performing an update of the communication compo-
nent.
Update main CPU The inverter is updating the inverter component.
Update RS485I module The inverter is updating the corresponding component.
Update Speedwire The inverter is updating the corresponding component.
Webconnect update The inverter is updating the corresponding component.
Update Bluetooth The inverter is updating the corresponding component.
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Display message Cause
Upd. language table The inverter is updating the corresponding component.
Update display The inverter is updating the corresponding component.
Update String prot. The inverter is updating the corresponding component.
Update completed The inverter has successfully completed the update.
Grid param. unchanged The parameters are locked and you cannot change them.
Inst. code valid The entered GridGuard code is valid. Protected parameters have
now been unlocked and you can adjust the parameters. The param-
eters will be automatically locked again after tenfeed-in hours.
4.3 Error Messages
Event number Display message, cause and corrective measures
101 to 103 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:
• 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 Service.
4 Troubleshooting
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Service Manual 11STP15-17TL-10-SG-en-10

Event number Display message, cause and corrective measures
202 to 203 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.
• Make sure that the AC cable is not damaged.
• Make sure that the AC cable is correctly connected.
• 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 Service (see Section15, page43).
301 Grid fault
The ten-minute average value of the grid voltage is no longer within the per-
missible range. The grid voltage or grid impedance at the connection point is
too high. The inverter disconnects from the utility grid to maintain power qual-
ity.
Corrective measures:
• 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 Service (see Section15, page43).
401 to 404 Grid fault
The inverter is no longer in grid-parallel operation. The inverter has stopped
feeding into the utility grid.
Corrective measures:
• Check the grid connection for significant short-term frequency fluctuations.
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Event number Display message, cause and corrective measures
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15, page43).
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.
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15, page43).
1302 Waiting for grid voltage > Grid failure > Check AC circuit breaker
The AC cable is not correctly connected or the country data set is not correctly
configured.
Corrective measures:
• Ensure that the AC cable is correctly connected (see the operating
manual of the inverter).
• Ensure that the country data set has been configured correctly.
• Check the fuse.
4 Troubleshooting
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Event number Display message, cause and corrective measures
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. Check the
setting of the rotary switches A and B or select the operating parameter
Set country standard and check the value.
3301 to 3303 Unstable operation
The ten-minute average value of the grid voltage is no longer within the per-
missible range. The grid voltage or grid impedance at the connection point is
too high. The inverter disconnects from the utility grid to maintain power qual-
ity.
Corrective measures:
• 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 Service (see Section15, page43).
3401 to 3402 DC overvoltage > Disconnect generator
Overvoltage at the DC input. This can destroy the inverter.
This message is additionally highlighted by rapid flashing of the backlight.
Corrective measures:
• Immediately disconnect the inverter from all voltage sources (see
Section2.2, page7).
• 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 DC connectors 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 Service (see Section15,
page43).
4 Troubleshooting SMA Solar Technology AG
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Event number Display message, cause and corrective measures
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7, page28).
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 limiting
value. When the fault is eliminated, the inverter automatically reconnects to the
utility grid.
Corrective measures:
• Check the PV system for ground faults (see Section7, page28).
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7, page28).
3801 to 3802 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 cond. > Start cond. not met
The feed-in conditions for the utility grid are not yet fulfilled.
Corrective measures:
• 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.
4 Troubleshooting
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Service Manual 15STP15-17TL-10-SG-en-10

Event number Display message, cause and corrective measures
4001 String X defect. > Do not disconn. ESS
There is reverse current in the string displayed or the polarity of this string is re-
versed. Further strings could also be affected. The PV array is short-circuited. In
exceptional circumstances, this error message may be triggered by soiling or
shading of the modules (e.g. by leaves or snow).
Corrective measures:
• Disconnect the inverter from voltage sources when it is dark (see
Section2.2, page7)
• Check the design and the circuitry of the PV array.
• If irradiation is sufficient, check whether the same voltage is present at the
DC inputs A1 to A5.
If the same voltage is not present, one of the PV modules is possibly
defective.
4002 String X low power > Check generator
String-failure detection has detected a failed or weak string.
Corrective measures:
• Test the string that is shown in the message.
4003 String X defect. > Do not disconn. ESS
String-failure detection has detected a failed or weak substring.
Corrective measures:
• Disconnect the inverter from all voltage sources (see Section2.2, page7)
.
• Check the design and the circuitry of the PV array.
• If irradiation is sufficient, check whether the same voltage is present at the
DC inputs A1 to A5.
If the same voltage is not present, one of the PV modules is possibly
defective.
4005 Part.str. X low p. > Check generator
String-failure detection has detected a failed or weak substring.
Corrective measures:
• Test the substring indicated in the message.
6001 to 6445 Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
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Event number Display message, cause and corrective measures
6313 Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
6429 to 6439 Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
6501 to 6502 Self diagnosis > Overtemperature
The inverter has switched off due to excessive 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.
6603 to 6604 Self-diagnosis > Overload
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
6701 to 6702 Comm. disturbed
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
6801 to 6802 Self-diagnosis > Input A defective
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
6901 to 6902 Self-diagnosis > Input B defective
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
7001 to 7002 Sensor fault fan permanently on
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
4 Troubleshooting
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Service Manual 17STP15-17TL-10-SG-en-10

Event number Display message, cause and corrective measures
7101 SD card defective
The SD memory card is not formatted.
Corrective measures:
• Re-format the SD memory card.
• Re-save the files to the SD memory card.
7102 Parameter file not found or defective
The parameter file was not found or is defective. The update failed. The in-
verter continues feeding power into the grid.
Corrective measures:
• Copy the parameter file into the card drive: \PARASET directory.
7105 Param. setting failed
It was not possible to set the parameter via the SD memory card. The inverter
continues feeding power into the grid.
Corrective measures:
• Check the parameters for valid values.
• Ensure change rights via SMAGridGuardcode.
7106 Update file defect.
Update file on the SD memory card is faulty.
Corrective measures:
• Re-format the SD memory card.
• Re-save the files to the SD memory card.
7110 No update file found
No update file has been found.
Corrective measures:
• Copy the update file in the SD memory card folder. Select the folder
\UPDATE.
7201 to 7202 Data stor. not poss.
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Contact Service.
7303 Update main CPU failed
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
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Event number Display message, cause and corrective measures
7305 Update RS485I module failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
7307 Update BT failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
7309 Upd. display failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
7311 Update language table failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
7314 Update string protection failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
7316 Update Speedwire module failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
• If this message is displayed again, contact Service (see Section15,
page43).
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Event number Display message, cause and corrective measures
7324 Wait for update conditions
• Ensure that there is DC supply to the inverter and that it feeds more than
1,000 W into the utility grid for over one minute.
7326 Webconnect update failed
Internal error. The inverter continues to feed into the utility grid.
Corrective measures:
• Retry update.
7401 Varistor defective
At least one of the thermally monitored varistors is defective.
Corrective measures:
• Check the function of the varistors (see Section8, page31).
7508 Fan fault > Clean fan
One of the fans is blocked.
Corrective measures:
• Clean the fans (see Section5, page23).
7701 to 7703 Self diagnosis > Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
8001 Derating occurred
The power supplied by the inverter was reduced to below the maximum possi-
ble instantaneous power (derating) for more than ten minutes due to excessive
temperature.
Corrective measures:
• If this message is displayed frequently, clean the fans (see Section5,
page23).
• Ensure that the inverter has sufficient ventilation.
8104 Interference device
The cause must be determined by the Service.
Corrective measures:
• Contact Service (see Section15, page43).
8201 Interference device > Do not disconn. ESS
The cause must be determined by the Service.
Corrective measures:
• Disconnect the inverter from all voltage sources when it is dark (see
Section2.2, page7).
• Contact Service (see Section15, page43).
4 Troubleshooting SMA Solar Technology AG
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