User Manual SUNNY BOY 3.0-US / 3.8-US / 5.0-US / 6.0-US / 7.0-US / 7.7-US SUN NY BO Y ENGLISH SBxx-US-1XP-40-BA-en-13 | Version 1.
Legal Provisions SMA Solar Technology AG Legal Provisions The information contained in these documents is the property of SMA Solar Technology AG. No part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SMA Solar Technology AG.
SMA Solar Technology AG Table of Contents Table of Contents 1 2 3 Information on this Document................................................. 5 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 5 5 5 5 6 6 7 7 Safety ........................................................................................ 8 2.1 2.2 8 9 Intended Use .............................................................................................................. IMPORTANT SAFETY INSTRUCTIONS..........................................
Table of Contents 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 SMA Solar Technology AG Changing the Password............................................................................................. Changing Operating Parameters.............................................................................. Configuring the Country Data Set............................................................................. Activating of the Rapid Shutdown DC discharge function ........................
SMA Solar Technology AG 1 1.1 1 Information on this Document Information on this Document Validity This document is valid for: • SB3.0-1TP-US-40 (Sunny Boy 3.0-US) from firmware version ≥ 2.04.88.R • SB3.8-1TP-US-40 (Sunny Boy 3.8-US) from firmware version ≥ 2.04.88.R • SB5.0-1TP-US-40 (Sunny Boy 5.0-US) from firmware version ≥ 2.04.88.R • SB6.0-1TP-US-40 (Sunny Boy 6.0-US) from firmware version ≥ 2.04.88.R • SB7.0-1TP-US-40 (Sunny Boy 7.0-US) from firmware version ≥ 2.04.88.R • SB7.
1 Information on this Document SMA Solar Technology AG DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE Indicates a situation which, if not avoided, can result in property damage. 1.
1 Information on this Document SMA Solar Technology AG 1.7 Designation in the document Complete designation Designation in this document Sunny Boy Inverter, product 1.8 Additional Information For more information, please go to www.SMA-Solar.com.
2 Safety 2 SMA Solar Technology AG Safety 2.1 Intended Use The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to grid-compliant alternating current and feeds it into the utility grid. The product is suitable for indoor and outdoor use.
2 Safety SMA Solar Technology AG Any use of the product other than that described in the Intended Use section does not qualify as the intended use. The enclosed documentation is an integral part of this product. Keep the documentation in a convenient, dry place for future reference and observe all instructions contained therein.
2 Safety SMA Solar Technology AG DANGER Danger to life due to electric shock when touching live system components in case of a ground fault If a ground fault occurs, parts of the system may still be live. Touching live parts and cables results in death or lethal injuries due to electric shock. • Disconnect the product from voltage sources and make sure it cannot be reconnected before working on the device. • Touch the cables of the PV array on the insulation only.
2 Safety SMA Solar Technology AG CAUTION Risk of burns from hot surfaces The surface of the inverter can get very hot. Touching the surface can result in burns. • Mount the inverter in such a way that it cannot be touched inadvertently. • Do not touch hot surfaces. • Wait 30 minutes for the surface to cool sufficiently. • Observe the safety messages on the inverter.
2 Safety SMA Solar Technology AG NOTICE 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. NOTICE Destruction of the measuring device due to overvoltage • Only use measuring devices with a DC input voltage range of 600 V or higher.
3 Product Overview SMA Solar Technology AG 3 Product Overview 3.1 Product Description A B G F H C E I SUNN Y BO Y Y Y BO SUNN D J K Figure 1: Design of the inverter Position Designation A Power Unit B Enclosure lid of the Power Unit C Enclosure lid for the Connection Unit D Connection Unit E Warning label with compliance information F DC load-break switch G Type label The type label clearly identifies the product. The type label must remain permanently attached to the product.
3 Product Overview SMA Solar Technology AG Position Designation H Fan (only with Sunny Boy 7.0 and 7.7) I Additional type label The additional type label must remain permanently attached to the product.
SMA Solar Technology AG Symbol 3 Product Overview Explanation Equipment Grounding Terminal This symbol indicates the position for the connection of an equipment grounding conductor. UL 1741 and CSA C22.2 No. 107.1 are the standards applied by Underwriters Laboratories to the product to certify that it meets the requirements of the National Electrical Code®, the Canadian Electrical Code® and IEEE 1547. 3.
3 Product Overview SMA Solar Technology AG If the inverter is connected to the Internet via the cellular network, you must register the system in Sunny Portal powered by ennexOS. The communication with the inverters is optimized with regard to the data volume and availability of the inverter. No data can be viewed in real time. Note that the inverter must be equipped with a firmware version ≥ 2.04.88.R for connection via the cellular network.
SMA Solar Technology AG 3 Product Overview SMA Sensor Module The SMA Sensor Module has different interfaces for connecting various sensors (i.e. temperature sensor, irradiation sensor, anemometer or energy meter). The SMA Sensor Module converts the signals of the connected sensors and transmits them to the inverter. The SMA Sensor Module can be retrofitted. SMA Cellular LTE Modem Kit The inverter type "SBx.x-1SP-US-40" can be retrofitted with the SMA Cellular LTE Modem Kit. The inverter type "SBx.
3 Product Overview SMA Solar Technology AG PV Rapid Shutdown System Equipment The inverter is a PV Rapid Shutdown System Equipment and performs the function of voltage reduction according to UL 1741 CRD PV Rapid Shutdown Systems 2015. When a rapid shutdown is triggered by disconnecting the utility grid, the inverter discharges independently on the AC side to ≤ 30 V within 30 seconds.
SMA Solar Technology AG 3 Product Overview If the available accessory communication set for TS4-R module technology components (SMA Rooftop Communication Kit) is installed in the inverter, the secure power supply operation is no longer available. The Rooftop Communication Kit supports the Rapid Shutdown function. The AC circuit breaker in the system is simultaneously the Rapid Shutdown initiator.
3 Product Overview 3.4 SMA Solar Technology AG LED Signals The LEDs indicate the operating state of the inverter. LED signal Explanation The green LED is flashing (two seconds on and two seconds off) Waiting for feed-in conditions The conditions for feed-in operation are not yet met. As soon as the conditions are met, the inverter will start feed-in operation. The green LED is flashing: 1.5 s on and 0.
3 Product Overview SMA Solar Technology AG 3.
4 Operation 4 SMA Solar Technology AG Operation 4.1 Activating and Operating the Display You can activate and operate the display by tapping on the enclosure lid of the Connection Unit. Procedure: 1. Activate the display. Tap on the enclosure lid of the Connection Unit once. ☑ The backlight is switched on. 2. To move to the next message, tap on the enclosure lid of the Connection Unit once. 4.2 4.2.
4 Operation SMA Solar Technology AG 4.2.2 Establishing a direct connection via WLAN Requirements: ☐ The product must be commissioned. ☐ An end device (e.g. computer, tablet PC or smartphone) must be available. ☐ The respective latest version of one of the following web browsers must be installed: Chrome, Edge, Firefox, Internet Explorer or Safari. ☐ JavaScript must be enabled in the web browser of the end device.
4 Operation SMA Solar Technology AG • Search for WLAN networks with your end device. • Select the SSID of the inverter SMA[serial number] in the list with the found WLAN networks. • Enter the inverter WLAN password. Within the first ten feed-in hours and prior to completing the configuration by means of the installation assistant, you must use the standard WLAN password SMA12345.
4 Operation SMA Solar Technology AG Requirements: ☐ The product must be connected to the local network via a network cable (e.g. via a router). ☐ The product must be integrated into the local network. Tip: There are various methods of integrating the product into the local network with the aid of the installation assistant. ☐ An end device (e.g. computer, tablet PC or smartphone) must be available. ☐ The end device must be in the same local network as the product.
4 Operation SMA Solar Technology AG Requirements: ☐ The product must be commissioned. ☐ The product must be integrated into the local network. Tip: There are various methods of integrating the product into the local network with the aid of the installation assistant. ☐ An end device (e.g. computer, tablet PC or smartphone) must be available. ☐ The end device must be in the same local network as the product.
4 Operation SMA Solar Technology AG 4. In the Repeat password field, enter the new password again. 5. Select Login. ☑ The Configuring the Inverter page opens. Log in as the User or Installer 1. 2. 3. 4. ☑ In the drop-down list Language, select the desired language. In the User group drop-down list, select the entry Installer or User. Enter the password in the field Password. Select Login. The start page of the user interface opens. Log Out as the User or Installer 1.
4 Operation 4.
4 Operation SMA Solar Technology AG Position Designation Description A Menu B User settings Provides the following functions, depending on the user group logged in: • Starting the installation assistant • SMA Grid Guard login • Logout C Help User Manual Provides the following functions: • Home Opens the user interface homepage • Instantaneous values Current measured values of the inverter • Device Parameters The various operating parameters of the inverter can be viewed and configured here depend
4 Operation SMA Solar Technology AG Position Designation Description D Status bar Displays the following information: • Inverter serial number • Inverter firmware version • IP address of the inverter within the local network and/or IP address of the inverter during WLAN connection • With WLAN connection: Signal strength of WLAN connection • User group logged in • Date and device time of the inverter E Current power and current consumption Temporal progression of the PV power and the power consumpti
4 Operation SMA Solar Technology AG Procedure: 1. Activate the user interface (see Section 4.2, page 22). 2. Log into the user interface (see Section 4.3, page 26). 3. Select the menu Data. 4. Select the folder Data. 5. To call up the data, select the respective folder and click on the required file. 6. To download the data, select the data type to be exported in the drop-down list. Then apply the time filter and select Data export. 4.
4 Operation SMA Solar Technology AG Layout of the installation assistant A C B Figure 3: Layout of the installation assistant (example) Position Designation Description A Configuration steps Overview of the installation assistant steps. The number of steps depends on the type of device and the additionally installed modules. The current step is highlighted in blue. B User information Information about the current configuration step and the setting options of the configuration step.
4 Operation SMA Solar Technology AG 4.8 Secure Power Supply Operation 4.8.1 Activating Secure Power Supply Operation If an outlet and a switch for secure power supply operation are connected to the inverter, you can supply a load with current from the PV system in case of a grid failure during the day. If you activate the secure power supply operation, the inverter supplies loads that are connected to the outlet for secure power supply operation.
4 Operation SMA Solar Technology AG 2. Turn the switch of the outlet to secure power supply operation. 3. Wait one minute. ☑ The inverter commences secure power supply operation. As soon as the inverter supplies the outlet with power, the green LED flashes (1.5 s on and 0.5 s off) and the message SPS-mode active is shown in the display along with the amount of power being supplied from the inverter to the outlet. In addition, the control light of the outlet for secure power supply operation glows.
4 Operation SMA Solar Technology AG 4. 5. 6. 7. ☑ Select Network configuration. Select WPS for WLAN network button in the WLAN tab. Select Activate WPS. Select Save and next and exit the installation assistant. The WPS function is activated and the automatic connection to the network can be established. Activating the WPS function for direct connection to the end device. • Activate the WPS function on the inverter. To do this, tap twice on the enclosure lid of the Connection Unit.
4 Operation SMA Solar Technology AG Procedure: • To switch on the WLAN direct connection, in the parameter group PV system communication > WLAN, select the parameter Soft-access-point is turned on and set this to Yes. • To switch on the WLAN connection in the local network, in the parameter group System communication > WLAN, select the parameter WLAN is turned on and set this to Yes. 4.
4 Operation SMA Solar Technology AG 4.13 Changing Operating Parameters The operating parameters of the inverter are set to certain values by default. You can change the operating parameters to optimize the performance of the inverter. This section describes the basic procedure for changing operating parameters. Always change operating parameters as described in this section.
4 Operation SMA Solar Technology AG 4.14 Configuring the Country Data Set As standard, the inverter is meant for connection to a utility grid with a 208 V wye connection or a 240 V split-phase system, and the associated country data set UL1741/2016/120 is factory-set. If the default country data set does not correspond with the grid configuration, the country data set can be adapted to the connected grid configuration.
4 Operation SMA Solar Technology AG 3. In the parameter group Device > Multifunction relay > Operating mode select the parameter Operating mode of multifunction relay or Mlt.OpMode and set the desired operating mode. 4. Once you have set the operating mode Self-consumption or SelfCsmp, you can configure other settings: • In the parameter group Device > Multifunction relay > Self-consumption > Minimum On power select the parameter Minimum On power for MFR selfconsumption or Mlt.
4 Operation SMA Solar Technology AG For information on which Modbus registers are supported, see the Technical Descriptions "SMA Modbus® Interface" or "SunSpec® Modbus® Interface" at www.SMA-Solar.com. Data security during activated Modbus interface If you activate the Modbus interface, there is a risk that unauthorized users may access and manipulate the data or devices in your PV system.
4 Operation SMA Solar Technology AG Procedure: • Select the parameter AFCI switched on or AfciIsOn and set to No. 4.20 Saving the Configuration in a File You can save the current configuration of the inverter in a file. You can use this file as a data backup for this inverter and then import this file into this inverter again or another inverter from the same type or device family to configure the inverter. When saving, only the device parameters will be saved, not any passwords. Procedure: 1.
4 Operation SMA Solar Technology AG 4.22 Updating the Firmware If no automatic update is set for the inverter in the communication product (e.g. SMA Data Manager, Cluster Controller, Sunny Portal) or via the user interface of the inverter, you have the option of carrying out a manual firmware update. There are two options to update the firmware: • Update the firmware via the user interface of the inverter. • Update the firmware via USB flash drive.
4 Operation SMA Solar Technology AG 5. Commission the inverter (see inverter installation manual). ☑ During start-up phase of the inverter, the desired firmware is being installed. At the same time, the status of the update is shown in the display: Update status: xxxxxxx ☑ Once the desired firmware has been installed in the inverter, the status successful is shown in the display. 6. If the message error occurred is shown in the display, perform the firmware update again. DANGER 7.
5 Cleaning the Inverter 5 SMA Solar Technology AG Cleaning the Inverter NOTICE Damage due to cleaning agents The use of cleaning agents may cause damage to the product and its components. • Clean the product and all its components only with a cloth moistened with clear water. • Ensure that the inverter is free of dust, foliage and other dirt.
SMA Solar Technology AG 6 6 Troubleshooting Troubleshooting 6.1 Forgotten Password If you have forgotten the password for the inverter, you can unlock the inverter with a Personal Unlocking Key (PUK). For each inverter, there is one PUK for each user group (User and Installer). Tip: With PV systems in Sunny Portal, you can also assign a new password via Sunny Portal for the user group Installer. The password for the user group Installer is the same as the system password in Sunny Portal. Procedure: 1.
6 Troubleshooting 6.2 SMA Solar Technology AG Event Messages Event number Message, cause and corrective measures 101 to 105 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: • Ensure that the correct country data set has been configured (see Section 4.14, page 38). • Check whether the grid voltage at the connection point of the inverter is permanently in the permissible range.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 401 to 404 Grid fault The inverter has disconnected from the utility grid. A stand-alone grid or a very large change in the power frequency was detected. Corrective measures: • Check the grid connection for significant short-term frequency fluctuations. 501 Grid fault The power frequency is not within the permissible range. The inverter has disconnected from the utility grid.
6 Troubleshooting Event number SMA Solar Technology AG Message, cause and corrective measures 701 Frq. not permitted > Check parameter The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures: • If possible, check the power frequency and observe how often fluctuations occur.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 3301 to 3303 Unstable operation There is not enough power at the DC input of the inverter for stable operation. The inverter cannot connect to the utility grid. Corrective measures: • Ensure that the PV array is designed correctly. • Ensure that the PV array is not covered by snow or otherwise shaded. • Ensure that the PV array is free of errors.
6 Troubleshooting Event number SMA Solar Technology AG Message, cause and corrective measures 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 threshold. When the fault is eliminated, the inverter automatically reconnects to the utility grid.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 4301 Electric arc detected > Check DC generator The inverter has detected an electric arc. The inverter interrupts grid feed-in and cannot connect to the utility grid. Corrective measures: • Resetting the operation inhibition after detection of an arc fault (see Section 6.4, page 68).
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 7112 Update file successfully copied 7113 The memory card is full or write-protected 7303 Update main CPU failed The cause must be determined by the Service. Corrective measures: • Contact the Service (see Section 9, page 72). 7324 Wait for update conditions The testing of the update conditions was not successful. The firmware update package is not suitable for this inverter.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 7347 Incompatible file The configuration file is not suitable for this inverter. Corrective measures: • Ensure that the selected configuration file is suitable for this inverter. • Retry import. 7348 Incorrect file format The configuration file is not of the required format or is damaged. Corrective measures: • Ensure that the selected configuration file is of the required format and is not damaged.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 7355 Update WebUI The inverter is updating the inverter user interface. 7356 Update of the WebUI not successful The update of the inverter user interface failed. Corrective measures: • Retry update. • If this message is displayed again, contact the Service (see Section 9, page 72).
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 8206 Electr. arc detected > Please confirm by tapping The inverter has detected an electric arc and was recommissioned after a disconnection. By tapping, you are confirming that you have repaired any possible damage to PV modules, DC conductors or plugs in the PV system.
6 Troubleshooting Event number SMA Solar Technology AG Message, cause and corrective measures 9005 Changing of grid parameters not possible > Ensure DC supply This error can have the following causes: • The parameters to be changed are protected. • The DC voltage at the DC input is not sufficient to run the main CPU. Corrective measures: • Enter the SMA Grid Guard code. • Ensure that at least the DC start voltage is available (green LED is flashing, pulsing or glowing).
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10248 to 10249 Load reduced through device reduction or increase of query interval The network is busy. Data exchange between the devices is not at an optimum and is greatly delayed. Corrective measures: • Reduce the number of devices in the network. • If necessary, increase the data query intervals. • If necessary, reduce the number of devices in the network.
6 Troubleshooting Event number SMA Solar Technology AG Message, cause and corrective measures 10253 [Interface]: connection speed goes to [100 Mbit / 10 Mbit] The data transfer rate has changed. The cause for the status [10 Mbit] can be a defective plug, a defective cable or the pulling or plugging of the network connector.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10284 No WLAN connection possible The inverter does not currently have a WLAN connection to the selected network. Corrective measures: • Ensure that the SSID, the WLAN password and the encryption method have been entered correctly. The encryption method is specified by your WLAN router or WLAN Access Point and can be changed there.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10341 Webconnect error: no connection It is likely that there is an error in the network settings. Corrective measures: • Check the network components (DLAN, WLAN Access Point etc.). • Ensure that the following ports are not blocked: – Registrar: ied.sma.de:9523 – Proxy: ied.sma.de:9523 – Stun: stun.sma.de:3478 – Domain: ied.sma.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10346 SIP proxy DNS resolution failed It is likely that there is an error in the network settings. Corrective measures: • Check the network components (DLAN, WLAN Access Point etc.). • Ensure that the following ports are not blocked: – Registrar: ied.sma.de:9523 – Proxy: ied.sma.de:9523 – Stun: stun.sma.de:3478 – Domain: ied.sma.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10349 Webconnect error: No reply to SIP option packs It is likely that there is an error in the network settings or a Sunny Portal maintenance message is present. Corrective measures: • If a Sunny Portal maintenance message is present, wait until the maintenance has been completed. • Check the network components (DLAN, WLAN Access Point etc.).
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 10352 Webconnect error: Faulty communication It is likely that there is an error in the network settings or a Sunny Portal maintenance message is present. Corrective measures: • If a Sunny Portal maintenance message is present, wait until the maintenance has been completed. • Check the network components (DLAN, WLAN Access Point etc.). • Ensure that the following ports are not blocked: – Registrar: ied.sma.
6 Troubleshooting SMA Solar Technology AG Event number Message, cause and corrective measures 27331 Update transport started The inverter has successfully started the update. 27332 Update transport successful The update file has been successfully transferred to the communication component. 29001 Inst. code valid The entered Grid Guard code is valid. Protected parameters have now been unlocked and you can adjust the parameters.
6 Troubleshooting SMA Solar Technology AG • If the voltage measurement was not successful, check the PV system via insulation resistance measurement for ground faults. Test by Measuring the Voltage Proceed as follows to check each string in the PV system for ground faults. Procedure: DANGER 1. Danger to life due to high voltages • Disconnect the inverter from any voltage sources (see the inverter installation manual). 2.
6 Troubleshooting SMA Solar Technology AG Location of the ground fault The example shows a ground fault between the second and third PV module. V1 = 200 V 100 V V2 = 300 V 100 V 100 V 100 V 100 V + Test by Measuring the Insulation Resistance If the voltage measurement does not provide sufficient evidence of a ground fault, the insulation resistance measurement can provide more exact results.
6 Troubleshooting SMA Solar Technology AG Calculating the insulation resistance The expected total resistance of the PV system or of an individual string can be calculated using the following formula: total The exact insulation resistance of a PV module can be obtained from the module manufacturer or the datasheet.
6 Troubleshooting SMA Solar Technology AG 12. Recommission the inverter (see inverter installation manual). 13. If the inverter still displays an insulation error, contact the Service (see Section 9, page 72). The PV modules might not be suitable for the inverter in the present quantity. 6.
SMA Solar Technology AG 6 Troubleshooting 5. Log into the user interface as an Installer (see Section 4.3, page 26). 6. Reset the operation inhibition by setting one of the following parameters: • Select the parameter Reset operating data and set to Reset operation inhibition. or • Select the parameter AFCI switched on and set to No and then back to Yes. ☑ This effects resetting of the operation inhibition and the inverter will start feeding in again.
7 Accessories 7 SMA Solar Technology AG Accessories You will find the accessories for your product in the following overview. If required, these can be ordered from SMA Solar Technology AG or your distributor. Designation Short designation SMA Antenna Extension Kit Accessory set for one SMA inverter for the optimization of the SMA inverter’s WLAN radio range. EXTANT-US-40 SMA Sensor Module Interface for one SMA inverter as retrofit kit for capturing environmental data (e.g.
SMA Solar Technology AG 8 8 Compliance Information Compliance Information FCC Compliance This device complies with Part 15 of the FCC Rules and with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: 1. this device may not cause harmful interference, and 2. this device must accept any interference received, including interference that may cause undesired operation.
9 Contact 9 SMA Solar Technology AG Contact If you have technical problems with our products, please contact the SMA Service Line. The following data is required in order to provide you with the necessary assistance: • Device type • Serial number • Firmware version • Event message • Mounting location and mounting height • Type and number of PV modules • Optional equipment, e.g.
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