SMA SUNNY BOY 3300 Installation Manual
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SMA SUNNY BOY 3300 Installation Manual

Pv inverter
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PV Inverter
SUNNY BOY 3300/3800
Installation Guide
SB33_38-IEN111851 | IME-SB3800 | Version 5.1
EN

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Summary of Contents for SMA SUNNY BOY 3300

  • Page 1 PV Inverter SUNNY BOY 3300/3800 Installation Guide SB33_38-IEN111851 | IME-SB3800 | Version 5.1...

  • Page 3: Table Of Contents

    SMA Solar Technology AG Table of Contents Table of Contents Notes on this Guide ....... 6 Validity .
  • Page 4 Table of Contents SMA Solar Technology AG Connection to the Power Distribution Grid (AC)... . 22 5.3.1 Conditions for the AC Connection ....... . 22 5.3.2...
  • Page 5 11.1 Sunny Boy 3300 ........66 11.2...

  • Page 6: Notes On This Guide

    SMA Solar Technology AG 1 Notes on this Guide 1.1 Validity This guide describes the assembly, installation, commissioning and maintenance of the following SMA inverters: • Sunny Boy 3300 (SB 3300) from firmware version GRX33_3.02/3.02, • Sunny Boy 3800 (SB 3800) from firmware version GRX38_3.05/3.05.

  • Page 7: Symbols Used

    SMA Solar Technology AG Notes on this Guide 1.4 Symbols Used The following types of safety instructions and general information appear in this document as described below: DANGER! "DANGER" indicates a hazardous situation which, if not avoided, will result in death or serious injury.

  • Page 8: Safety

    Do not use the Sunny Boy for purposes other than those described here. Alternative uses, modifications to the Sunny Boy or the installation of components not expressly recommended or sold by SMA Solar Technology AG void the warranty claims and operation permission. SB33_38-IEN111851...
  • Page 9 Parameters” (page 36)). To change grid-relevant parameters, you need a personal access code - the so-called SMA Grid Guard Code. The application form for the personal access code is located in the download area at www.SMA.de/en, in the "Certificate" category for each inverter.

  • Page 10: Safety Instructions

    Grounding the PV generator Comply with the local requirements for grounding the modules and the PV generator. SMA Solar Technology AG recommends connecting the generator frame and other electricity conducting surfaces in a manner which ensures continuous conductions, and grounding them in order to achieve maximum protection of the system and personnel.

  • Page 11: Explanation Of Symbols

    SMA Solar Technology AG Safety 2.3 Explanation of Symbols This section gives an explanation of all the symbols found on the inverter and on the type plate. 2.3.1 Symbols on the Inverter Symbol Explanation Operation Display. Indicates the operating state of the inverter.

  • Page 12: Symbols On The Type Plate

    Safety SMA Solar Technology AG 2.3.2 Symbols on the Type Plate Symbol Explanation Beware of dangerous electrical voltage. The inverter operates at high voltages. All work on the inverter may only be carried out by an electrically qualified person. Beware of hot surface.

  • Page 13: Unpacking

    SMA Solar Technology AG Unpacking 3 Unpacking 3.1 Scope of Delivery Check the delivery for completeness and for visible external damage, such as cracks in the enclosure or in the display. Contact your dealer if anything is damaged or missing. Object Number...

  • Page 14: Identifying The Inverter

    Unpacking SMA Solar Technology AG 3.2 Identifying the Inverter You can identify the inverter using the type plate. The type plate is on the right side of the enclosure. The serial number (Serial No.) and the type (Type / Model) of the inverter, as well as device-specific characteristics, are specified on the type plate.

  • Page 15: Assembly

    SMA Solar Technology AG Assembly 4 Assembly 4.1 Safety DANGER! Danger to life due to fire or explosion. Despite careful construction, electrical devices can cause fires. • Do not mount the inverter on flammable construction materials. • Do not mount the inverter in areas where highly flammable materials are stored.
  • Page 16 Assembly SMA Solar Technology AG • Install vertically or tilted backwards at a maximum angle of 45°. • The connection area must point downwards. • Never mount the device with a forward tilt. • Never install the device with a sideways tilt.

  • Page 17: Mounting The Inverter With The Wall Mounting Bracket

    SMA Solar Technology AG Assembly 4.3 Mounting the Inverter with the Wall Mounting Bracket CAUTION! Risk of injury due to the heavy weight of the inverter. • Note that the inverter weighs approx. 38 kg. 1. Use the wall mounting bracket as a drilling template and mark the positions of the drill holes.
  • Page 18 Assembly SMA Solar Technology AG 3. Attach the wall mounting bracket to the wall using appropriate screws and washers. 4. Mount the inverter with the upper fastening plates on the wall mounting bracket in such a way that both plates on the upper edge of the bracket pass through the cutouts on the inverter.
  • Page 19 SMA Solar Technology AG Assembly 7. If a second protective conductor is not required, secure the inverter against excavation: – Insert cylinder bolt with safety washer through the metal lashing eye on the bottom of the enclosure. The toothing of the safety washer must face toward the metal shackle.

  • Page 20: Electrical Connection

    Electrical Connection SMA Solar Technology AG 5 Electrical Connection 5.1 Safety NOTICE! Damage to the inverter through electrostatic discharges. Internal components of the inverter can be irreparably damaged by static discharge. • Before you touch a component inside the inverter, ground yourself by touching a grounded object.

  • Page 21: Interior View

    SMA Solar Technology AG Electrical Connection 5.2.2 Interior View The following figure shows the various components and connection areas of the open inverter. Object Description Slot for communication Display Jumper slot for fan test Operating status LEDs Tab for grounding the cable shield with line-conducted communication...

  • Page 22: Connection To The Power Distribution Grid (Ac)

    The conductor cross-section should be dimensioned in a way that cable losses do not exceed 1 % at nominal power. Use "Sunny Design" (www.SMA.de/en/SunnyDesign) for this. The maximum cable lengths are shown in the following table. Do not exceed the maximum cable length.
  • Page 23 The maximum permissible rating can be found in section 11 ”Technical data” (page 66). Detailed information and examples for the rating of a line circuit breaker can be found in the Technical Information "Line Circuit Breaker" in the SMA Solar Technology AG download area at www.SMA.de/en. DANGER! Danger to life due to fire.

  • Page 24: Connecting The Inverter To The Power Distribution Grid (Ac)

    AC nom The exact operating range of the inverter is specified in the operation parameters. The corresponding document is located in the download area at www.SMA.de/en, in the "Technical Description" category of the respective inverter. 2. Disconnect the line circuit breaker and prevent it from being reactivated.
  • Page 25 SMA Solar Technology AG Electrical Connection 5. Pass the threaded sleeve (C) with the sealing ring over the AC cable. 6. Bend the AC cable. The bend radius must be at least four times the cable diameter. 7. Shorten the cable.
  • Page 26 Electrical Connection SMA Solar Technology AG 14. Screw the clamping nut (E) tightly onto the threaded sleeve (C). The clamping nut serves to seal and relieve strain. ☑ The AC connection socket has been screwed together. 15. Close the socket element with the protective cap provided, if the inverter has not yet been connected.

  • Page 27: Connecting Additional Grounding

    SMA Solar Technology AG Electrical Connection 5.3.3 Connecting Additional Grounding If a second protective conductor, additional grounding or equipotential bonding is required, you can additionally ground the inverter on the enclosure. Additional Grounding Overview Object Description Metal shackle on the underside of the inverter enclosure...

  • Page 28: Setting The Display Language

    Electrical Connection SMA Solar Technology AG 5.4 Setting the Display Language You can set the language of the display using the switches underneath the display assembly inside the inverter. Procedure 1. Open the inverter as described in section 7.2 ”Opening the Inverter” (page 43).

  • Page 29: Connection Of The Pv Generator (Dc)

    SMA Solar Technology AG Electrical Connection 5.5 Connection of the PV Generator (DC) 5.5.1 Conditions for the DC Connection Use of Adaptors Adaptors (branch connectors) must not be visible or freely accessible in the immediate surroundings of the inverter. • The DC circuit may not be interrupted by adaptors.

  • Page 30: Assembling The Dc Plug Connector

    Electrical Connection SMA Solar Technology AG 5.5.2 Assembling the DC Plug Connector In order to connect to the inverter, all connection cables of the PV modules must be equipped with the DC plug connectors provided. To assemble the DC plug connectors, proceed as follows: Ensure the plug connectors have the correct polarity.
  • Page 31 SMA Solar Technology AG Electrical Connection Result Measure ☑ If the conductors are not visible in the • Loosen the clamping bracket. For this hollow cavity, the cable is not in the correct purpose, use a screwdriver with a width of position.

  • Page 32: Opening The Dc Plug Connector

    Electrical Connection SMA Solar Technology AG 5.5.3 Opening the DC Plug Connector 1. Screw the threaded joint off. 2. To release the plug connector, slot a screw driver into the side catch mechanism and lever out. For this purpose, use a screwdriver with a width of 3.5 mm.

  • Page 33: Connecting The Pv Generator (Dc)

    SMA Solar Technology AG Electrical Connection 5.5.4 Connecting the PV Generator (DC) DANGER! Danger to life due to high voltage at the inverter! • Before connecting the PV generator, ensure that the line circuit breaker is switched off and that it cannot be reactivated.
  • Page 34 Electrical Connection SMA Solar Technology AG 4. Check the strings for ground faults, as described in section 9.3.1 ”Checking the PV Generator for a Ground Fault” (page 58). NOTICE! Excessive currents can damage the inverter! • The maximum current per DC connector plug may not exceed 16 A.

  • Page 35: Communication

    SMA Solar Technology AG Electrical Connection 7. Check the Electronic Solar Switch for wear, as described in section 8.2 ”Checking the Electronic Solar Switch for Wear” (page 51) and attach it firmly. NOTICE! The Electronic Solar Switch can be damaged if it is plugged on incorrectly! The Electronic Solar Switch can be damaged by high voltages if it has not been attached properly.

  • Page 36: Setting The Grid And Country Parameters

    To change grid-relevant parameters, you need a personal access code - the so-called SMA Grid Guard Code. The application form for the personal access code is located in the download area at www.SMA.de/en, in the "Certificate" category for each inverter.

  • Page 37: Commissioning

    SMA Solar Technology AG Commissioning 6 Commissioning 6.1 Commissioning the Inverter 1. Check the following requirements before commissioning: – The inverter is firmly fastened – Correct connection of the AC cable (grid) – Full connection of the DC cables (PV strings) – Unnecessary DC inputs are closed with the corresponding DC connectors and sealing plugs.

  • Page 38: Self-Test In Accordance With Dk 5940, Ed

    Commissioning SMA Solar Technology AG 6.2 Self-Test in accordance with DK 5940, Ed. 2.2 (applies to Italy only) 6.2.1 Starting the Self-Test by Tapping You can start testing the disconnection times by tapping on the enclosure lid. A prerequisite here is that the country configuration of the inverter has been set to Italy (IT/DK5940) or "trimmed". Proceed as follows for checking the disconnection times: 1.
  • Page 39 SMA Solar Technology AG Commissioning Overvoltage Test The inverter begins with the overvoltage test. During the test sequence, the voltage limit applied is shown in the display of the inverter. The voltage limit is reduced successively until the shut- down threshold is achieved and the inverter disconnects from the grid.
  • Page 40 Commissioning SMA Solar Technology AG Undervoltage Test After the overvoltage test, the inverter performs the undervoltage test. During the test sequence, the current calibration value of the voltage limit applied is shown in the display of the inverter. The voltage limit is increased successively until the shutdown threshold is reached and the inverter disconnects from the grid.

  • Page 41: Maximum Frequency

    SMA Solar Technology AG Commissioning Maximum Frequency In a third step, the inverter tests the maximum frequency. During the test sequence, the frequency limit applied is shown in the display of the inverter. The frequency limit is reduced successively until the shutdown threshold is reached and the inverter disconnects from the grid.
  • Page 42 Commissioning SMA Solar Technology AG Minimum Frequency In the last step, the inverter tests the minimum frequency. During the test sequence, the frequency limit applied is shown in the display of the inverter. The frequency limit is increased successively until the shutdown threshold is reached and the inverter disconnects from the grid.

  • Page 43: Opening And Closing

    SMA Solar Technology AG Opening and Closing 7 Opening and Closing 7.1 Safety DANGER! Risk of lethal electric shock! Before opening the inverter observe the following: • Ensure that no voltage is present on the AC side. • Ensure that no voltage is present on the DC side.
  • Page 44 Opening and Closing SMA Solar Technology AG 4. Unlock all DC connectors. For this purpose, use a screwdriver with a width of 3.5 mm. – Insert a screwdriver into one of the side slits (1). – Disconnect DC connectors (2).

  • Page 45: Closing The Inverter

    SMA Solar Technology AG Opening and Closing DANGER! Danger to life due to high voltages in the inverter! The capacitors in the inverter require 15 minutes to discharge. • Wait 15 minutes before opening the inverter. 8. Loosen the screws of the enclosure lid.
  • Page 46 Opening and Closing SMA Solar Technology AG 3. Close all unnecessary DC inputs as described in section 5.5.4 ”Connecting the PV Generator (DC)” (page 33) to seal the inverter. 4. Connect the AC plug. 5. Check the Electronic Solar Switch for wear, as described in section 8.2 ”Checking the Electronic...

  • Page 47: Maintenance And Cleaning

    SMA Solar Technology AG Maintenance and Cleaning 8 Maintenance and Cleaning Check the correct operation of the inverter at regular intervals. Impurities such as dust or airborne blossoms can cause heat concentration that can lead to yield losses. Also check the inverter and the cables for visible external damage.

  • Page 48: Checking The Fan

    • Plug the provided jumper into the sequential control system board. Setting Parameters 1. Request the installer password from the SMA Serviceline (contact: see page 73). 2. Set the "Fan-Test" parameter to "1" in the installer mode. 3. Check the air-flow of the fan.
  • Page 49 SMA Solar Technology AG Maintenance and Cleaning Plugging the Jumper The inverter recognizes the jumper only after the system has been restarted (i.e. all LEDs must have gone out before a restart). 1. Open the inverter as described in section 7.2 ”Opening the Inverter” (page 43).

  • Page 50: Cleaning The Ventilation Grids

    Maintenance and Cleaning SMA Solar Technology AG 8.1.3 Cleaning the Ventilation Grids There are ventilations grids on either side of the inverter. The inverter sucks air in from underneath through the fan and blows it out again on the upper left side via the ventilation grids. For optimal heat dissipation of the inverter, you only have to clean the left ventilation grid.

  • Page 51: Checking The Electronic Solar Switch For Wear

    SMA Solar Technology AG Maintenance and Cleaning 8.2 Checking the Electronic Solar Switch for Wear Check the Electronic Solar Switch for wear before plugging it in. Depending on the shape of the Electronic Solar Switch, you can estimate the wear on either the metal tongues (shape A) or on the plastic (shape B).

  • Page 52: Troubleshooting

    Do not perform any repairs that are not described here and take advantage of the 24-hour replacement service (inverter ready for shipping and handed over to a haulage company within 24 hours) and the SMA Solar Technology AG repair service instead. 9.1 Blink Codes...

  • Page 53: Error Messages

    • If the grid voltage is continually within the acceptable range, and this error is still displayed, contact the SMA Serviceline. Bfr-Srr Internal measurement comparison fault or hardware defect. Corrective measures • If this fault continues to occur, contact the SMA Serviceline. Installation Guide SB33_38-IEN111851...
  • Page 54 • If repeated frequency variations occur and this is causing "dZac-Bfr" or "dZac-Srr" errors, ask the electric power company if it would agree to modify the operating parameters (dZac-Max). • Discuss changing the operating parameter with the SMA Serviceline. EEPROM Transition disturbance while data is being written or read from EEPROM.
  • Page 55 • Check the plant design and grid conditions. K1-Close Error during relay test. K1-Open Corrective measures • Contact the SMA Serviceline if this problem occurs often or several times in succession. MSD-Fac Internal measurement comparison fault or hardware defect. Corrective measures •...
  • Page 56 Message Description and Corrective Measure Shutdown Temporary inverter disturbance. Corrective measures • Contact the SMA Serviceline. Trafo-Temp-F Temperatures in the transformer have exceeded the acceptable limit. The inverter stops feeding the grid until the temperature lies within the acceptable range.
  • Page 57 Internal program run fault. Watchdog-Srr Corrective measures • If this fault continues to occur, contact the SMA Serviceline. Zac-Bfr The grid impedance is no longer within the permissible range ("Bfr" or "Srr" is an internal message of no relevance for the user).

  • Page 58: Red Led Is Glowing Continuously

    Troubleshooting SMA Solar Technology AG 9.3 Red LED is Glowing Continuously If the red status display LED lights up continuously during operation, there is a ground fault in the PV generator or at minimum one varistor for overvoltage protection is faulty.
  • Page 59 SMA Solar Technology AG Troubleshooting 4. Measure the voltages between the plus pole and the minus pole of each string. ☑ If the voltages measured are stable and the total of the voltages from the plus pole against ground potential and the minus pole against ground potential of a string roughly corresponds to the voltage between the plus pole and minus pole, then there is a ground fault.

  • Page 60: Checking The Function Of The Varistors

    Troubleshooting SMA Solar Technology AG Location of the ground fault The approximate position of the ground fault can be determined from the ratio of the measured voltages between the plus pole against ground potential (PE) and the minus pole against ground potential (PE).
  • Page 61 ☑ There is a conducting connection. There is probably a different fault in the inverter. • Close the inverter as described in section 7.3 ”Closing the Inverter” (page 45). • Contact the SMA Serviceline (see section 13 ”Contact” (page 73)). ☑ There is no conducting The respective varistor is defective and must be replaced.
  • Page 62 ☑ The terminal clamps will loosen. If you do not receive an insertion tool for operating the terminal clamps with your replacement varistors, contact SMA Solar Technology AG. As an alternative, the individual terminal contacts can be operated using a 3.5 mm wide screwdriver.

  • Page 63: Decommissioning

    SMA Solar Technology AG Decommissioning 10 Decommissioning 10.1 Dismantling the Inverter DANGER! Danger to life due to high voltages in the inverter. • Disconnect the line circuit breaker and prevent it from being reactivated. 1. Remove the Electronic Solar Switch. 2. Release and remove all DC plug connectors (see section 7.2 ”Opening the Inverter”...
  • Page 64 Decommissioning SMA Solar Technology AG CAUTION! Danger of burn injuries due to hot enclosure parts! The inverter's enclosure can become hot during operation. • Wait until the enclosure has cooled down. 6. If a communication cable is available: – Open the inverter as described in section 7.2 ”Opening the Inverter” (page 43).

  • Page 65: Packing The Inverter

    Dispose of the inverter at the end of its service life in accordance with the disposal regulations for electronic waste which apply at the installation location at that time. Alternatively, send it back to SMA Solar Technology AG with shipping paid by sender, and labeled "ZUR ENTSORGUNG" ("for disposal") (see section 13 ”Contact” (page 73)).

  • Page 66: Technical Data

    Technical data SMA Solar Technology AG 11 Technical data 11.1 Sunny Boy 3300 DC Input Maximum DC power 3 820 W Maximum DC voltage* 500 V MPP input voltage range 200 V … 400 V DC nominal voltage 200 V PV start voltage, adjustable 250 V Maximum input current 20 A...

  • Page 67: Mechanical Data

    SMA Solar Technology AG Technical data Mechanical Data Width x height x depth 450 mm x 352 mm x 236 mm Weight 38 kg Climatic Conditions Extended temperature range* − 25 °C … +60 °C Extended air humidity range* 0 % … 100 % Extended air pressure range* 79.5 kPa … 106 kPa...

  • Page 68: Communication Interfaces

    Technical data SMA Solar Technology AG Communication Interfaces RS485, galvanically isolated optional Radio optional ® Bluetooth Wireless Technology optional Electronic Solar Switch Electric service life in the event of a short-circuit, A minimum of 50 switching operations with a nominal current of 30 A Maximum switching current 30 A...

  • Page 69: Sunny Boy 3800

    SMA Solar Technology AG Technical data 11.2 Sunny Boy 3800 DC Input Maximum DC power 4 040 W Maximum DC voltage* 500 V MPP input voltage range 200 V … 400 V DC nominal voltage 200 V PV start voltage, adjustable 250 V Maximum input current 20 A...
  • Page 70 Technical data SMA Solar Technology AG Mechanical Data Width x height x depth 450 mm x 352 mm x 236 mm Weight 38 kg Climatic Conditions Extended temperature range* − 25 °C … +60 °C Extended air humidity range* 0 % … 100 % Extended air pressure range* 79.5 kPa … 106 kPa...
  • Page 71 SMA Solar Technology AG Technical data Communication Interfaces RS485, galvanically isolated optional Radio optional Bluetooth optional Electronic Solar Switch Electric service life in the event of a short-circuit, A minimum of 50 switching operations with a nominal current of 30 A Maximum switching current 30 A...

  • Page 72: Accessories

    SMA Solar Technology AG 12 Accessories You will find the corresponding accessories and replacement parts for your product in the following overview. If required, you can order these from SMA Solar Technology AG or your dealer. Description Brief description SMA order number Ventilation grids Ventilation grid set "right and left"...

  • Page 73: Contact

    SMA Solar Technology AG Contact 13 Contact If you have technical problems concerning our products, contact the SMA Serviceline. We require the following information in order to provide you with the necessary assistance: • Inverter type • Inverter serial number • Type and number of connected PV modules •...

  • Page 75: Exclusion Of Liability

    The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions: • SMA Solar Technology AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Solar Technology AG. This also applies to the provision or non-provision of support activities.

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