Notes on this Manual 1 Notes on this Manual 1.1 Validity This installation guide describes the installation and commissioning of SMA Sunny Boy 4000TL (SB 4000TL-20) and 5000TL (SB 5000TL-20) type inverters. 1.2 Target Group Only qualified electricians may install and commission Sunny Boy units.
SMA Technologie AG Notes on this Manual 1.4 Symbols Used The following four types of warnings 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.
When planning the PV system, ensure that the values comply with the permitted operating range of all components at all times. The free design program "Sunny Design" (www.SMA.de/SunnyDesign) will assist you in this. The manufacturer of the PV modules must have approved the modules for use with this Sunny Boy unit.
PV generator ground connection Comply with the local requirements for grounding the modules and the PV generator. SMA recommends connecting the generator frame and other electricity conducting surfaces such that there is continuous conduction and to connect them to the ground in order to reach maximum protection for property and persons.
SMA Technologie AG Unpacking 3 Unpacking 3.1 Scope of Delivery Object Number Description Sunny Boy Wall bracket Set of documents with explanations and certificates Installation guide, including user manual Optional Installation guide for communication module 3.2 Check for Transport Damage Check the Sunny Boy for visible external damage, such as cracks in the housing or display.
SMA Technologie AG Technical Data 4 Technical Data SB 4000TL-20 SB 5000TL-20 Solar generator connection data Max. input voltage 550 V DC max Input voltage, MPP range 125 V DC ... 440 V DC Max. input current 2 x 15 A PV max Max.
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SMA Technologie AG Technical Data SB 4000TL-20 SB 5000TL-20 Grid connection data Nominal output power 4000 W 4600 W / ACnom 5000 W Max. output power 4000 W 5000 W AC, max Nominal output current (at 230 V AC) 17.5 A...
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SMA Technologie AG Technical Data SB 4000TL-20 SB 5000TL-20 General data EC Declaration of Conformity enclosed set of documents, download area www.SMA.de Dimensions (W x H x D) approx. 470 mm x 445 mm x 180 mm Weight approx. 25 kg...
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Technical Data SB 4000TL-20 SB 5000TL-20 Protective function AC side Short-circuit proofing current control All-pole isolator on grid side automatic disconnection device (SMA grid guard 3) Efficiency Max. efficiency η 97.0 % CEC rebate efficiency η 96,2 % 96,5 % euro...
SMA Technologie AG Installation 5 Installation 5.1 Selecting an Installation Location WARNING! Lethal danger caused by fire or explosion! The Sunny Boy housing can become hot during operation. • Do not mount the Sunny Boy on flammable construction materials. •...
SMA Technologie AG Installation 5.1.2 Ambient Conditions • The installation location and installation method must be suitable for the weight and dimensions. • Install on a solid surface. • The installation location must be accessible at all times. • The ambient temperature should be below 40 °C at all times to guarantee optimal operation.
SMA Technologie AG Installation 5.1.4 Position • Vertical installation or tilted back 15° max.. • Never install the unit with a forward tilt. • Do not install horizontally. • Install at eye level to allow operating conditions to be read at all times.
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SMA Technologie AG Installation Use the wall bracket as a drilling template and mark the positions of the drill holes. Number of drill holes used • When wall mounting the unit, use at least two of the horizontal holes and the lowest hole in the middle.
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SMA Technologie AG Installation Check both sides to ensure that it is correctly in place. Push the Sunny Boy to the right on the wall bracket, until it locks into place with the locking bolt on the rear wall. Ensure that it is correctly in place.
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SMA Technologie AG Installation Optional anti-theft protection The Sunny Boy can be secured to the wall bracket with a lock to protect it against theft. The lock must meet the following requirements: • Size: A: 6 - 10 mm in diameter B: 21 –...
SMA Technologie AG Installation 5.2.2 Mounting with a Top-Hat Rail Requirements for mounting using top-hat rails • Use a TH-35-7.5 mounting rail compliant with DIN EN 60715. • Use stainless steel top hat rails and screws to prevent contact corrosion.
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SMA Technologie AG Installation Check both sides to ensure that it is correctly in place. In order to prevent the Sunny Boy being pulled off, you must also screw it to the wall. To do so, proceed as follows: Remove the Electronic Solar Switch by pulling it downwards.
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SMA Technologie AG Installation Secure the Sunny Boy with a screw. The screw must meet the following requirements: Length: min. 100 mm Diameter: 8 mm Screw head: not hexagon head, not countersunk Ensure that it is securely tightened. Installation Guide...
SMA Technologie AG Electrical Connection 6 Electrical Connection WARNING! Electric shock due to short circuit! If cables with different voltages are laid parallel to one another, short circuits can result if the cable insulation becomes damaged. • Lay all cables separately.
SMA Technologie AG Electrical Connection 6.1 Connection Area Overview Plug connectors for connecting the strings (input area A) Electronic Solar Switch (ESS) socket Plug connectors for connecting the strings (input area B) Plug for connecting the RS485 module (optional) Plug for connecting the fault signaling contact (optional)
AC grid impedance should not exceed 1 Ohm. Otherwise the Sunny Boy will deactivate at full feed- in power due to excessive voltage at the grid connection point. The cable cross-section should be sized using the "Sunny Design" design program (www.SMA.de) such that output losses do not exceed 1 % at the nominal power.
SMA Technologie AG Electrical Connection WARNING! Risk of lethal burns! When a generator (Sunny Boy) and a consumer are connected to the same line circuit breaker, the protective function of the line circuit breaker is no longer guaranteed. The current from the Sunny Boy and the grid can add up to overcurrent which is not detected by the line circuit breaker.
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SMA Technologie AG Electrical Connection Loosen all six non-removable lid screws and remove the lid. Other connections and settings If you want to make other connections than AC and DC, you should make them now before connecting the AC cable to give you more freedom of movement. This includes: •...
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SMA Technologie AG Electrical Connection Seal in the screw clamp There is a two-part seal in the screw clamp. If necessary, the inner insert can be removed to insert a thicker cable. The following guideline values apply: • Cable cross section with both seals: 12 - 16 mm •...
SMA Technologie AG Electrical Connection Additional grounding of the housing If a second protective earth connection is required in the installation country (e.g. Switzerland), you can also ground the Sunny Boy with an additional protective earth on the connection terminal of the housing.
SMA Technologie AG Electrical Connection 6.3 Connection of the Solar Generator (DC) The Sunny Boy has two input areas, "A" and "B", each with their own MPP tracker. Up to two strings can be attached to each of the two input areas. They must fulfill the following requirements: •...
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DC plug connectors (2 x 2 for input A and 2 x 2 for input B) of the Sunny Boy. A pre-assembled set for connecting the free cable ends from a string is available as an optional accessory from SMA. • The following limit values at the DC input of the Sunny Boy may not be exceeded:...
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SMA Technologie AG Electrical Connection NOTICE! The Sunny Boy could be irreparably damaged by overvoltage! If the voltage of the solar modules exceeds the maximum input voltage of the Sunny Boy, it could be irreparably damaged by overvoltage. All warranty claims become void.
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SMA Technologie AG Electrical Connection Check the Electronic Solar Switch for wear as described in section 9.2 and connect it after successful testing. NOTICE! Damage to the Electronic Solar Switch! If inserted incorrectly the Electronic Solar Switch could be damaged.
SMA Technologie AG Electrical Connection 6.4 Setting the installation country The Sunny Boy can be configured for multiple countries. This is done using two rotary switches in the Sunny Boy or by configuring the "CntrySet" parameter using a communication device.
Check that the Sunny Boy is set to the installation country. Check that the country configuration is correct via the display message when (re-)commissioning (see section 7 „Commissioning” (Page 47)) or via the "SMA grid guard" measuring channel using a communication device.
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SMA Technologie AG Electrical Connection (1) (2) Parameter set Display language Protection Country DK5940E2.2* Italian Italy German Italy RD1663 Spanish Spain Greek Greece Kepco-guide* English South Korea G83/1* English England Off-Grid English German French Spanish Italian Greek SD-Card SD-Card flexible...
SMA Technologie AG Electrical Connection 6.4.2 Setting Using a Rotary Switch To make settings, proceed as follows: Open the Sunny Boy as described in section 8.1 „Opening the Sunny Boy” (Page 49). Set the arrows on the rotary switches to the required position using a screwdriver (2.5 mm).
SMA Technologie AG Electrical Connection 6.5 Communication 6.5.1 Bluetooth Bluetooth communication with a communication device is activated by default. Bluetooth networking with other inverters is deactivated ex works (switch position 1 is the condition on delivery). Bluetooth communication is set using a rotary switch inside the Sunny Boy.
SMA Technologie AG Electrical Connection 6.5.2 Fault Signaling Contact The Sunny Boy is fitted with a fault signaling contact as standard. It is activated simultaneously with the red error LED beside the display. You can connect a separate consumer both in the event of errors and for trouble-free operation.
SMA Technologie AG Electrical Connection Connection plan Operating message Fault message L or or N or N L or Line circuit breaker Line circuit breaker (1 A) (1 A) Error on the Sunny Boy Sunny Boy running Sunny Boy running...
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SMA Technologie AG Electrical Connection Insert the cable into the Sunny Boy. Seal in the screw clamp There is a two-part seal in the screw clamp. If necessary, the inner insert can be removed to insert a thicker cable. The following guideline values apply: •...
SMA Technologie AG Electrical Connection 6.5.3 Installing the Communication Module The communication module is used for wired communication with special data acquisition devices or a PC with corresponding software. See the communication module documentation for a detailed wiring diagram. This section describes how to install the communication module in the Sunny Boy.
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SMA Technologie AG Electrical Connection Wire the communication module as described in the module documentation. Flip down the display and secure it. Attach the ribbon cable to the connector. Close the Sunny Boy as described in section 8.2 „Closing the Sunny Boy” (Page 51).
SMA Technologie AG Commissioning 7 Commissioning Check the following requirements before commissioning: • Secure fit on wall bracket / top hat rail • Correct country configuration (see section 6.4.2) • Correct connection of the AC (grid) cable • Full connection of the DC cables (PV strings) •...
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SMA Technologie AG Commissioning Display on initialization First, the text line shows the firmware version of the FW KP xxxxx HP xxxxx internal processors. After 5 seconds or after you knock on the lid, the 2100237148 serial number or the name of the inverter are displayed.
SMA Technologie AG Opening and Closing 8 Opening and Closing NOTICE! Electrostatic discharges can damage the Sunny Boy! Internal components of the Sunny Boy can be irreparably damaged by static discharge. • Ground yourself before you touch a component. 8.1 Opening the Sunny Boy...
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SMA Technologie AG Opening and Closing Loosen all six non-removable lid screws and remove the lid. Use a suitable measuring device on the AC terminal to ensure that there is no voltage present at PE. The maximum diameter of the test tip may not exceed 2 mm.
SMA Technologie AG Opening and Closing 8.2 Closing the Sunny Boy Connect the DC plug connectors. Check that the polarity is correct and ensure that the strings are assigned correctly (as described in section 6.3 „Connection of the Solar Generator (DC)”...
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SMA Technologie AG Opening and Closing NOTICE! Damage to the Electronic Solar Switch! If inserted incorrectly the Electronic Solar Switch could be damaged. • Press the handle firmly into place on the socket of the Electronic Solar Switch! The handle must be flush with the housing.
SMA Technologie AG Maintenance 9 Maintenance 9.1 Checking Heat Dissipation If the Sunny Boy often loses power due to overheating (temperature symbol on the display lights up), this can be for the following reasons: • The cooling fins on the rear of the housing are covered in dirt.
Sunny Boy. You also need the installer password to access the installer mode. Request the installer password on the SMA Technical Service Line (contact: see Page 72). Set the "CoolSys.FanTst" parameter in installer mode to "On" (using a communication device).
SMA Technologie AG Maintenance 9.2 Inspection of the Electronic Solar Switch (ESS) Check the Electronic Solar Switch for wear before you attach it. To do so, check the metal tongues on the inside of the plug for brown discoloration. Worn-out metal tongues If at least one of the metal tongues is brown or fully burned off (see figure above), the Electronic Solar Switch can no longer be guaranteed to function correctly.
SMA sends you a file with the firmware update via e-mail. • You require adapted parameter settings for your installation location. Request this from SMA. SMA will then send you an e-mail containing a file with the corresponding settings and instructions on how to make them. •...
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SMA Technologie AG SD Card Slot When the Sunny Boy has completed the update, < Update complete > is shown on the display and you can remove the SD card again. Open the Sunny Boy as described in section 8.1 „Opening the Sunny Boy” (Page 49).
SMA Technologie AG Messages 11 Messages If there is no DC voltage, the display is blank. Measurements can only be made and messages can only be displayed if there is sufficient DC voltage (the green LED flashes or lights up).
Sunny Boy is too high. limits. For reasons of safety, the Sunny Boy If the grid voltage is within the disconnects itself from the grid. acceptable range, but the error is still displayed, contact the SMA Technical Service Line. Installation Guide SB40TL_50TL-IEN081211...
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For reasons of safety, the Sunny Boy limits. disconnects itself from the grid. If the grid voltage is within the acceptable range, but the error is still displayed, contact the SMA Technical Service Line. < Voltage rise protection > • Test the grid voltage at the connection point of the Sunny Boy.
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Discuss the proposed parameters with the SMA Technical Service Line. < DC grid feeding > • Check the grid connection for the DC component.
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SMA Technologie AG Messages Cause Remedy < Installation fault > • Correct the connection as described in section 6.2 Second phase connected to N. „Connection to the Public Grid (AC)” (Page 28). < Unstable operation > • Wait for greater radiation.
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PV generator. 60 - 64 < Device fault > • Contact SMA Technical Service Line (see section 14 „Contact” (Page 72)). < Overtemperature > • Ensure ventilation is sufficient. Sunny Boy deactivates due to excessive •...
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Remedy < Communication faulty > If the event occurs frequently: A fault has occurred in the internal inverter • Contact SMA Technical Service communication. However, the Sunny Boy Line (see section 14 „Contact” continues to feed power. (Page 72)). 68 - 70 <...
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Internal device fault, but the Sunny Boy • If the fault occurs again, contact continues to feed power. SMA Technical Service Line (see section 14 „Contact” (Page 72)). < Bluetooth update failed > Internal device fault, but the Sunny Boy continues to feed power.
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SMA Technologie AG Messages Cause Remedy < Inst. code invalid > • Enter a valid Inst. code. The Inst. code (personal installer password) entered is not valid. < Grid param. locked > • Enter a valid Inst. code to change the country data set.
SMA Technologie AG Troubleshooting 12 Troubleshooting 12.1 Ground Fault Monitoring If the Sunny Boy displays event number "35", "36" or "37", there is probably a ground fault on the PV generator. Check the strings for ground faults as described below: Open the Sunny Boy as described in section 8.1 „Opening the Sunny Boy”...
SMA Technologie AG Troubleshooting 12.2 Checking the Varistors If the Sunny Boy shows event number "74", one of the varistors is probably defective. Varistors are wearing parts. Their functioning diminishes with age or due to repeated responses as a result of overvoltages. It is therefore possible that one of the thermally monitored varistors has lost its protective function.
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There is probably another fault in the Sunny Boy. connection. • Continue with point 9. • Discuss further steps with the SMA Technical Service Line. There is no conducting The respective varistor is defective and must be replaced. connection. The varistors are specially manufactured for use in the Sunny Boy and are not commercially available.
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If you do not receive a special tool for operating terminal the terminal clamps together with your replacement varistors, please contact SMA. As an alternative, the terminal contacts can be operated using a 3.5 mm wide screwdriver. Remove...
Dispose of the Sunny Boy at the end of its service life in accordance with the disposal regulations for electronic scrap which apply at the installation site at that time. Alternatively, send it back to SMA with shipping paid by sender, and labeled "ZUR ENTSORGUNG" ("for disposal") (contact: see Page 72).
SMA Technologie AG Contact 14 Contact If you have any questions or technical problems concerning the Sunny Boy, contact our SMA Technical Service Line. Please have the following information available when you contact SMA: • Inverter type • Serial number of the Sunny Boy •...
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SMA Technologie AG Contact Installation Guide SB40TL_50TL-IEN081211...
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SMA Technologie AG Contact SB40TL_50TL-IEN081211 Installation Guide...
The use of supplied software produced by SMA Technologie AG is subject to the following conditions: • SMA Technologie AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Technologie AG. This also applies to the provision or non-provision of support activities.
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Sales Solar Technology www.SMA.de SMA Technologie AG Hannoversche Strasse 1–5 34266 Niestetal, Germany Tel.: +49 561 9522 4000 Fax: +49 561 9522 4040 Email: sales@SMA.de Freecall: +800 SUNNYBOY Freecall: +800 7 8 6 6 9 2 6 9 Innovation in Systems Technology...
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