background image

3. Screw the clamping bracket tight using the

M6x16 cylindrical screw and the conical spring
washer M6 (torque: 6 Nm). The teeth of the
conical spring washer must face the clamping
bracket.

6.4

DC Connection

6.4.1

Requirements for the DC Connection

Requirements for the PV modules per input:

☐ All PV modules must be of the same type.
☐ All PV modules must be aligned and tilted identically.
☐ On the coldest day based on statistical records, the open-circuit voltage of the PV array must

never exceed the maximum input voltage of the inverter.

☐ The same number of series-connected PV modules must be connected to each string.
☐ The maximum input current per string must be maintained and must not exceed the through-

fault current of the DC connectors (see Section 10 "Technical Data", page 41).

☐ The thresholds for the input voltage and the input current of the inverter must be adhered to

(see Section 10 "Technical Data", page 41).

☐ The positive connection cables of the PV modules must be fitted with the positive DC

connectors (for information on assembling DC connectors, see the DC connector installation
manual).

☐ The negative connection cables of the PV modules must be fitted with the negative DC

connectors (for information on assembling DC connectors, see the DC connector installation
manual).

Use of Y adapters for parallel connection of strings

The Y adapters must not be used to interrupt the DC circuit.

• Do not use the Y adapters in the immediate vicinity of the inverter. The adapters must not

be visible or freely accessible.

• In order to interrupt the DC circuit, always disconnect the inverter as described in this

document (see Section 9, page 38).

6 Electrical Connection

SMA Solar Technology AG

Operating Manual

STP20-25TL-BE-en-11

28

Summary of Contents for SUNNY TRIPOWER STP 20000TL-30

Page 1: ...Operating Manual SUNNY TRIPOWER 20000TL 25000TL STP20 25TL BE en 11 Version 1 1 AMERICAN ENGLISH ...

Page 2: ... 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 tra...

Page 3: ...or Mounting 16 5 2 Mounting the Inverter 18 6 Electrical Connection 22 6 1 Safety during Electrical Connection 22 6 2 Overview of the Connection Area 23 6 2 1 View from Below 23 6 2 2 Interior View 24 6 3 AC Connection 24 6 3 1 Requirements for the AC Connection 24 6 3 2 Connecting the Inverter to the Utility Grid 26 6 3 3 Connecting Additional Grounding 27 6 4 DC Connection 28 6 4 1 Requirements ...

Page 4: ...e 36 8 2 Integrating the Inverter into the Network 36 8 3 Changing Operating Parameters 37 8 4 Setting SMA OptiTrac Global Peak 37 9 Disconnecting the Inverter from Voltage Sources 38 10 Technical Data 41 11 Accessories 45 12 Contact 46 13 EC Declaration of Conformity 49 Table of Contents SMA Solar Technology AG Operating Manual STP20 25TL BE en 11 4 ...

Page 5: ...Knowledge of and compliance with this document and all safety information 1 3 Additional Information Links to additional information can be found at www SMA Solar com Document title and content Document type Service Manual STP 20000TL 25000TL Troubleshooting cleaning replacement of varistors and surge arresters type II and decommissioning Service Manual SMA Speedwire Webconnect data module Connect...

Page 6: ...w of all inverter operating parameters and their config uration options Technical Information 1 4 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 ...

Page 7: ...1 5 Nomenclature Complete designation Designation in this document Sunny Tripower Inverter product 1 Information on this Document SMA Solar Technology AG Operating Manual 7 STP20 25TL BE en 11 ...

Page 8: ...mentation 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 Solar Technology AG Unauthorized alterations will void guarantee and warranty claims and usually void the operation permit SMA Solar Technology AG s...

Page 9: ...ces page 38 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 to...

Page 10: ...Position Quantity Designation A 1 Inverter B 1 DC load break switch C 1 Wall mounting bracket D 1 Operating manual supplementary sheet with default set tings installation manual of the DC connector E 6 Negative DC connector F 6 Positive DC connector G 6 Sealing plug H 1 Clamping bracket I 1 Cylindrical screw M6 x 16 K 1 Conical spring washer M6 3 Scope of Delivery SMA Solar Technology AG Operating...

Page 11: ...bel The type label uniquely identifies the inverter You will require the infor mation on the type label to use the product safely and when seeking cus tomer support from the SMA Service Line You will find the following in formation on the type label Device type Model Serial number Serial No Date of manufacture Device specific characteristics C Ventilation grid D Recessed grip E LEDs The LEDs indic...

Page 12: ...serve the documentation Together with the red LED this symbol indicates an error for trou bleshooting see the service manual at www SMA Solar com Data transmission Danger This symbol indicates that the inverter must be additionally grounded if a second grounding conductor or equipotential bonding is required lo cally QR Code Links to additional information on the inverter can be found at www SMA S...

Page 13: ...ies with the requirements of the applicable EU direc tives Degree of protection IP65 The product is protected against dust intrusion and water jets from any angle The product is suitable for outdoor installation Certified safety The product is VDE tested and complies with the requirements of the Ger man Equipment and Product Safety Act RCM Regulatory Compliance Mark The product complies with the r...

Page 14: ...nables 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 four inverters per Sunny Portal system In large scale PV power plants data transmission to the Internet portal Sunny Portal is carried out via the SMA Cluster Controller You can access your Sunny Portal system from any c...

Page 15: ... installation manual of the multifunction relay The multifunction relay can be retrofitted SMA OptiTrac Global Peak SMA OptiTrac Global Peak is an advancement of SMA OptiTrac and allows the operating point of the inverter to follow the MPP precisely at all times In addition with the aid of SMA OptiTrac Global Peak the inverter can detect the presence of several maximum power points in the availabl...

Page 16: ...eration which could be perceived as annoying The mounting location must be suitable for the weight and dimensions of the inverter see Section 10 Technical Data page 41 To ensure optimum operation the ambient temperature should be between 25 C and 40 C The mounting location should not be exposed to direct solar irradiation Direct solar irradiation can cause the inverter to overheat As a result the ...

Page 17: ...you will prevent power reduction due to excessive temperature Maintain the recommended clearances to walls as well as to other inverters or objects If multiple inverters are mounted in areas with high ambient temperatures increase the clearances between the inverters and ensure sufficient fresh air supply 5 Mounting SMA Solar Technology AG Operating Manual 17 STP20 25TL BE en 11 ...

Page 18: ...fficulty Figure 5 Permissible and impermissible mounting positions 5 2 Mounting the Inverter Additionally required mounting material not included in the scope of delivery At least two screws that are suitable for the support surface size M10 at maximum At least two washers that are suitable for the screws diameter 30 mm at maximum If necessary two screw anchors suitable for the support surface and...

Page 19: ...ith one hand grasp the recessed grip and with the other hand support the top part of the enclosure This will prevent the inverter tipping forward If the inverter is to be transported and lifted with a crane remove the filler plugs on the top of the inverter and screw the eye bolts into the threads Risk of burns due to hot enclosure parts Some parts of the enclosure can get hot during operation Mou...

Page 20: ...bottom of the inverter rear panel 4 Set the wall mounting bracket aside and drill the marked holes 5 Insert screw anchors into the drill holes if the support surface requires them 6 Secure the wall mounting bracket horizontally using screws and washers 7 Hook the inverter into the wall mounting bracket 8 If the inverter has been transported with a crane remove the eye bolts from the threads on the...

Page 21: ...wall accidentally attach it to the wall with suitable mounting material Use both of the lower drill holes on the rear panel of the inverter 12 Ensure that the inverter is securely in place 5 Mounting SMA Solar Technology AG Operating Manual 21 STP20 25TL BE en 11 ...

Page 22: ...ng any work on the inverter disconnect it from all voltage sources as described in this document see Section 9 Disconnecting the Inverter from Voltage Sources page 38 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 inverte...

Page 23: ...he multi function relay or SMA Power Control Module C Enclosure opening M32 with filler plug for the data cables or network cables D Enclosure opening M20 with filler plug for the data cables or network cables E Enclosure opening for the AC connection F Positive and negative DC connectors input B G Positive and negative DC connectors input A 6 Electrical Connection SMA Solar Technology AG Operatin...

Page 24: ...AC cable E Jumper slot for temporarily changing the display language to English for ser vice purposes F Screw to release and attach the communication board G Rotary switch A and B for setting the country data set and the display lan guage H Slot for the SD memory card for service purposes 6 3 AC Connection 6 3 1 Requirements for the AC Connection Cable requirements External diameter 14 mm to 25 mm...

Page 25: ...ker must be fused separately Residual current monitoring unit If an external residual current device is required install a residual current device which trips at a residual current of 100 mA or higher for details on selecting a residual current device see the Technical Information Criteria for Selecting a Residual Current Device at www SMA Solar com Overvoltage category The inverter can be used in...

Page 26: ...ow and remove it 3 Remove the adhesive tape from the enclosure opening for the AC cable 4 Insert the cable gland from the outside into the enclosure opening and tighten it from the inside with the counter nut 5 Route the AC cable into the inverter through the cable gland If necessary slightly loosen the swivel nut of the cable gland 6 Remove the sheath from the AC cable 7 Shorten L1 L2 L3 and N by...

Page 27: ...required locally you can connect additional grounding to the inverter This prevents touch current if the grounding conductor at the connecting terminal plate for the AC cable fails The required clamping bracket the screw and the conical spring washer are part of the scope of delivery of the inverter Cable requirement Use of fine stranded conductors You can use an inflexible or a flexible fine stra...

Page 28: ...cal Data page 41 The thresholds for the input voltage and the input current of the inverter must be adhered to see Section 10 Technical Data page 41 The positive connection cables of the PV modules must be fitted with the positive DC connectors for information on assembling DC connectors see the DC connector installation manual The negative connection cables of the PV modules must be fitted with t...

Page 29: ...ected 2 Ensure that there is no ground fault in the PV array see service manual at www SMA Solar com 3 Check whether the DC connectors have the correct polarity If the DC connector is equipped with a DC cable of the wrong polarity the DC connector must be configured again The DC cable must always have the same polarity as the DC connector 4 Ensure that the open circuit voltage of the PV array does...

Page 30: ...d DC connectors push down the clamping bracket and push the swivel nut up to the thread Insert the sealing plug into the DC connector Tighten the DC connector torque 2 Nm Insert the DC connectors with sealing plugs into the corresponding DC inputs on the inverter The DC connectors snap audibly into place 7 Ensure that all DC connectors are securely in place 6 Electrical Connection SMA Solar Techno...

Page 31: ...he country data set you must always observe the locally applicable standards and directives as well as the properties of the PV system e g PV system size grid connection point If you are not sure which country data set is valid for your country or purpose contact your grid operator for information on which country data set is to be configured Country data set for operation with external decoupling...

Page 32: ...l 4 0 RD1699 4 1 RD1663 661 A 4 8 PPC 5 A G59 3 6 0 EN50438 6 E NEN EN50438 7 8 C10 11 2012 A 0 Medium Voltage Directive Germany A C SI4777_HS131_Pf B 0 MVtgDirective Internal B 8 IEC61727 MEA B C IEC61727 PEA D 0 Island mode 60 Hz E 0 Island mode 50 Hz Setting in accordance with VDE AR N 4105 for PV systems 3 86 kVA Germany Setting in accordance with VDE AR N 4105 for PV systems 13 8 kVA Germany ...

Page 33: ...must be correctly rated and mounted All cables must be correctly connected Unused DC inputs must be sealed using the corresponding DC connectors and sealing plugs The country data set must be set correctly for the country or the purpose Unused enclosure openings must be sealed tightly The factory mounted filler plugs can be used for that purpose Procedure 1 Make sure that the AC cable is routed in...

Page 34: ...five short screws into the other holes 4 Set the DC load break switch to the position O so that both mounting screws are visible 5 Insert the DC load break switch firmly into the recess on the inverter During this process the DC load break switch must still be in the position O and aligned so that the screws are positioned over the threads 6 Fasten the two screws using an Allen key AF 3 torque 2 N...

Page 35: ... cause of error 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 will start operation The red LED is glowing and an error message and event number appear in the display Rectify the error see the service manual at www SMA Solar com 7 Commissioning SMA Solar Tech...

Page 36: ...l of the communica tion product at www SMA Solar com 5 For partially shaded PV modules and depending on the given shading situation you should set the interval at which the inverter optimizes the MPP of the PV system Section 8 4 page 37 8 2 Integrating the Inverter into the Network If the router supports DHCP and DHCP is enabled the inverter will automatically be integrated into the network You wi...

Page 37: ...When changing grid relevant parameters the SMA Grid Guard code must be available see the Certificate Order Form for the SMA Grid Guard Code at www SMA Solar com Procedure 1 Call up the user interface of the communication product or software and log in as Installer or User 2 If required enter the SMA Grid Guard code 3 Select and set the required parameter 4 Save settings 8 4 Setting SMA OptiTrac Gl...

Page 38: ...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 1 000 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 t...

Page 39: ...rom the lower enclosure lid using an Allen key AF 3 9 Lift and remove the lower enclosure lid from below 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 9 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG Operating Manual 39 STP20 25TL BE en 11 ...

Page 40: ... 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 ...

Page 41: ...y in accordance with IEC 60664 1 II II In accordance with IEC 62109 2 ISC PV AC Output STP 20000TL 30 STP 25000TL 30 Rated power at 230 V 50 Hz 20 000 W 25 000 W Maximum apparent AC power 20 000 VA 25 000 VA Rated grid voltage 230 V 230 V Nominal AC voltage 220 V 230 V 240 V 220 V 230 V 240 V AC voltage range 180 V to 280 V 180 V to 280 V Nominal AC current at 220 V 230 V 240 V 29 A 36 2 A Maximum...

Page 42: ... Maximum efficiency ηmax 98 4 98 3 European efficiency ηEU 98 0 98 1 Protective Devices DC reverse polarity protection Short circuit diode Input side disconnection point DC load break switch DC overvoltage protection Thermally monitored varistors or surge arresters type II optional AC short circuit current capability Current control Grid monitoring SMA Grid Guard 3 Maximum permissible fuse protect...

Page 43: ...62109 2 NEN EN 50438 NRS 097 2 1 PPC RD 661 2007 RD 1699 2011 SI 4777 VDE AR N4105 VDE 0126 1 1 VFR 2014 UTE C15 712 1 BDEW 2008 in preparation EN 50438 Does not apply to all country standard deviations of EN 50438 IEC 62109 2 In order to meet the requirements of this standard the inverter must either be equipped with a multifunction relay used as a fault indicator contact or there must be a conne...

Page 44: ...al SMA Power Control Module Optional Surge arrester type II Optional Fans Width x height x depth 60 mm x 60 mm x 25 4 mm Noise emission typical 29 dB A Maximum operating altitude 3 000 m Air flow rate 40 m h Torques Upper lid screws 6 Nm 0 3 Nm Screws lower lid 2 Nm 0 3 Nm Screws for DC protective cover 3 5 Nm Screw for additional grounding 5 8 Nm SUNCLIX swivel nut 2 Nm Data Storage Capacity Dail...

Page 45: ...umber RS485 data module RS458 interface as retrofit kit DM 485CB 10 SMA Power Control Module Multifunction interface for implementing grid management systems for one inverter PWCMOD 10 Multifunction Relay Multifunction relay as retrofit kit MFR01 10 Type II surge arrester Type II surge arrester for input A and input B DC_SPD_KIT3 10 11 Accessories SMA Solar Technology AG Operating Manual 45 STP20 ...

Page 46: ...1800 SMA AUS 1800 762 287 International 61 2 9491 4200 Belgien Bel gique België SMA Benelux BVBA SPRL Mecheln 32 15 286 730 Brasil Vide España Espanha Česko SMA Central Eastern Europe s r o Praha 420 235 010 417 Chile Ver España Danmark Se Deutschland Tyskland Deutschland SMA Solar Technology AG Niestetal Medium Power Solutions Wechselrichter 49 561 9522 1499 Kommunikation 49 561 9522 2499 SMA Onl...

Page 47: ...elgien België Österreich Siehe Deutschland Perú Ver España Polska Patrz Česko Czechy Portugal SMA Solar Technology Portugal Unipessoal Lda Lisboa Gratuito em Portugal 800 20 89 87 Internacional 351 212377860 România Vezi Česko Cehia Schweiz Siehe Deutschland Slovensko pozri Česko Česká republika South Africa SMA Solar Technology South Africa Pty Ltd Centurion Pretoria 08600 SUNNY 08600 78669 Inter...

Page 48: ...20 2666 971 2 234 6177 SMA Middle East LLC 끭 Ҁ 01 234 9 鲵뼑ꖱ霢 끭 Ё Ҁ Middle East LLC 234 5 6 78 9 3 Other countries International SMA Service Line Niestetal Toll free worldwide 00800 SMA SERVICE 800 762 7378423 12 Contact SMA Solar Technology AG Operating Manual STP20 25TL BE en 11 48 ...

Page 49: ...Technology AG confirms herewith that the inverters described in this document are in compliance with the fundamental requirements and other relevant provisions of the above mentioned directives The entire EC Declaration of Conformity can be found at www SMA Solar com 13 EC Declaration of Conformity SMA Solar Technology AG Operating Manual 49 STP20 25TL BE en 11 ...

Page 50: ...SMA Solar Technology www SMA Solar com ...

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