SMA SUNNY ISLAND 6048-US Technical Description
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SMA SUNNY ISLAND 6048-US Technical Description

Off-grid inverter
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Off-Grid Inverter
SUNNY ISLAND 4548-US/6048-US
Technical description
SI4548_6048-US-TB_en-13 | Version 1.3
US

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Summary of Contents for SMA SUNNY ISLAND 6048-US

  • Page 1 Off-Grid Inverter SUNNY ISLAND 4548-US/6048-US Technical description SI4548_6048-US-TB_en-13 | Version 1.3...
  • Page 3 Specifications are subject to change without notice. Every attempt has been made to make this document complete, accurate and up-to-date. Readers are cautioned, however, that SMA America, LLC reserves the right to make changes without notice and shall not be responsible for any damages, including indirect, incidental or consequential damages, caused by reliance on the material presented, including, but not limited to, omissions, typographical errors, arithmetical errors or listing errors in the content material.

  • Page 4: Important Safety Instructions

    A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury. Symbol...
  • Page 5 SMA America, LLC Important Safety Instructions Markings on this Product The following symbols are used as product markings with the following meanings. Symbol Description Warning regarding dangerous voltage The product works with high voltages. All work on the product must only be performed as described in the documentation of the product.
  • Page 6 The product contains no user-serviceable parts. For all repair and maintenance, always return the unit to an authorized SMA Service Center. Before installing or using the product, read all of the instructions, cautions, and warnings in this manual.

  • Page 7: Table Of Contents

    SMA America, LLC Table of Contents Table of Contents 1 Information on this Manual......15 1.1 Validity.
  • Page 8 Table of Contents SMA America, LLC 6.3 AC Connection ......... 45 6.3.1 Cable Protection .
  • Page 9 SMA America, LLC Table of Contents 10 Operation ......... . 77 10.1 Menu Structure .
  • Page 10 Table of Contents SMA America, LLC 13 Battery Management....... . 106 13.1 Battery Temperature .
  • Page 11 SMA America, LLC Table of Contents 14.2.5 Grid Reconnection ........131 14.2.6 Grid Operation .
  • Page 12 Table of Contents SMA America, LLC 18 Maintenance and Care ......156 18.1 Enclosure .
  • Page 13 22.1 Sunny Island 4548-US ........225 22.2 Sunny Island 6048-US ........227 23 Glossary .

  • Page 15: Information On This Manual

    You will find further information on special topics such as selecting and using PV inverters in off-grid systems in the download area at www.SMA-America.com. 1.4 Terminology In this document SMA Solar Technology America, LLC is referred to in the following as SMA. The syntax specified here for menus and parameters applies throughout the entire manual: Menu:...

  • Page 16: Sunny Island 4548-Us/6048-Us

    An SD card provides uncomplicated system control, and thus facilitates any service work. Saving data and events Always use the SD card to save data and events. In case of a failure SMA can thus help you quickly. SI4548_6048-US-TB_en-13...
  • Page 17 SMA America, LLC 2  Sunny Island 4548-US/6048-US The Sunny Island monitors the set voltage and frequency limits on the grid and generator. If these limits are not observed, it disconnects from the external source without interruption and changes to stand-alone grid operation.
  • Page 18 2  Sunny Island 4548-US/6048-US SMA America, LLC Components of a Sunny Island System SI4548_6048-US-TB_en-13 Technical description...
  • Page 19 SMA America, LLC 2  Sunny Island 4548-US/6048-US Single-Phase System, 120 Vac, up to 6 kW: • 4.5 kW with SI 4548-US-10 • 6 kW with SI 6048-US-10 Single-Phase Parallel System, 120 Vac, up to 18 kW: Maximum three Sunny Island inverters of the types SI 4548-US-10/5048U/6048-US-10. You can combine the various types in any order.
  • Page 20 2  Sunny Island 4548-US/6048-US SMA America, LLC Split-Phase System, 240 Vac, up to 12 kW Two Sunny Island inverters of the types SI 4548-US-10/5048U/6048-US-10. You can combine the various types in any order. Three-Phase System, 120/208 Vac, up to 18 kW Three Sunny Island inverters of the types SI 4548-US-10/5048U/6048-US-10.
  • Page 21 L2 (e.g.: L1 with 2 x SI 4548-US-10 and L2 with 2 x SI 6048-US-10). SMA Multicluster technology You will find all other information on SMA multicluster technology for up to twelve Sunny Island inverters 4548-US/5048 U/6048-US and up to 100 kW power in the Multicluster Box manual.

  • Page 22: At A Glance

    2  Sunny Island 4548-US/6048-US SMA America, LLC 2.2 At a Glance The following figure provides an overview of all control elements and connections of the Sunny Island: SI4548_6048-US-TB_en-13 Technical description...

  • Page 23: Scope Of Delivery

    SMA America, LLC 2  Sunny Island 4548-US/6048-US Item Description Display LEDs showing device operation Control buttons Slot for the SD card Opening for the additional connections area (insertion of the cables via conduits) Connection area for additional connections Opening for the additional connections area (insertion of the cables via conduits)
  • Page 24 2  Sunny Island 4548-US/6048-US SMA America, LLC Item Number Designation Sunny Island Wall mounting bracket Ventilation grid Battery temperature sensor Filler plug Counter nut for filler plugs RJ45 cable, black Silicone tube Rubber plugs for feed-through of one cable Rubber plugs for feed-through of two cables...

  • Page 25: Required Tools And Resources

    SMA America, LLC 2  Sunny Island 4548-US/6048-US 2.4 Required Tools and Resources The following tools and materials are required in order to mount and install the Sunny Island 4548-US/6048-US: Tools (not included in scope of delivery) Cable knife Combination pliers...

  • Page 26: Safety Precautions

    Installation altitude The Sunny Island has been designed for use at altitudes of up to 9,840 ft. (3,000 m) above MSL. Please contact SMA Solar Technology before using the device at altitudes above 9,840 ft. (3,000 m). A performance loss of 0.5% per 330 ft (100 m) is to be expected starting at an altitude of 6,560 ft.

  • Page 27: Potential Hazards

    SMA America, LLC 3  Safety Precautions 3.2 Potential Hazards Electric shock from touching live components. Death or serious injuries. In order to ensure sufficient protection against contact, comply with the following observing the manual: • Ensure that the Sunny Island is correctly mounted.

  • Page 28: Assembly

    4  Assembly SMA America, LLC 4 Assembly 4.1 Selecting the Mounting Location Danger to life if installed in improper locations. Death or serious burns. Despite careful construction, electrical devices can cause fires. • Do not mount the Sunny Island on flammable construction materials.
  • Page 29 SMA America, LLC 4  Assembly Observe the following conditions during mounting: • The mounting location and method must be suitable for the weight and dimensions of the Sunny Island. • Mount on a solid surface. • The mounting location must be accessible at all times.
  • Page 30 4  Assembly SMA America, LLC • Maintain the minimum distances to walls, other devices and objects as represented in the illustration. In order to maintain sufficient ventilation, when installing the Sunny Island a minimum clearance of 12 in. (30 cm) at the sides and top must be maintained.

  • Page 31: Mounting The Sunny Island With The Wall Mounting Bracket

    SMA America, LLC 4  Assembly 4.2 Mounting the Sunny Island with the Wall Mounting Bracket Technical description SI4548_6048-US-TB_en-13...

  • Page 32: Mounting The Sunny Island On A Stone Wall

    4  Assembly SMA America, LLC 4.2.1 Mounting the Sunny Island on a Stone Wall Risk of injury due to the Sunny Island falling. Physical injury (fractures or crushing) and damage to the Sunny Island. • Ensure that the wall can carry the weight of the Sunny Island.
  • Page 33 SMA America, LLC 4  Assembly 5. Attach the Sunny Island to the wall mounting bracket. 6. Screw the Sunny Island to the wall mounting bracket on both sides using the screws (M6x10) provided. Tighten the screws clockwise. 7. Ensure that the device is securely in place.

  • Page 34: Mounting The Sunny Island Using Wall Studs

    4  Assembly SMA America, LLC 4.2.2 Mounting the Sunny Island Using Wall Studs Risk of injury due to the Sunny Island falling. Physical injury (fractures or crushing) and damage to the Sunny Island. • Ensure that the wall can carry the weight of the Sunny Island.

  • Page 35: Opening And Closing

    SMA America, LLC 5  Opening and Closing 5 Opening and Closing The enclosure of the Sunny Island has a removable lid. Remove the enclosure lid only when installing the device or for required maintenance or repair work. 5.1 Opening the Sunny Island 1.

  • Page 36: Closing The Sunny Island

    5  Opening and Closing SMA America, LLC 5.2 Closing the Sunny Island Electric shock due to live enclosure lid. Death or serious injuries. The grounding of the lid is ensured by the toothed washers. • Fasten the washers for all six screws with the toothing facing toward the enclosure lid.

  • Page 37: Electrical Connection

    SMA America, LLC 6  Electrical Connection 6 Electrical Connection All cables are routed through the openings on the bottom side of the device (see next illustration) and connected to the appropriate connection terminals on the Sunny Island. Use conduits to install the cables on the DC side and on the AC side on the Sunny Island. Conduits ensure the dust-tight and water-tight mounting of the cables on the enclosure and also serve as a strain relief of the cables at the connection.
  • Page 38 6  Electrical Connection SMA America, LLC Terminal Torque Cable size Cable type AC connections 22 in-lbs. (2.5 Nm) AWG 4 (25 mm²) Only use copper conductors. These cables must be approved for 167°F (75°C). Additional connections 5 in-lbs. to 7 in-lbs.

  • Page 39: Grounding

    SMA America, LLC 6  Electrical Connection 6.1 Grounding Danger to life due to electric shock • Fuse the sub-distribution of the generator or the utility grid at input AC2 of the Sunny Island with an overcurrent protective device (Branch Circuit Protection).
  • Page 40 ☑ The grounding conductor is connected. Calculating the Cross-Section of a Grounding Conductor SMA cannot state generally valid values for the cross-section of the grounding conductor required for the external grounding of the battery. The cable dimensions depend on the type and size of the battery connected, the external fuse (DC side) and the material used in the grounding conductor.

  • Page 41: Dc Connection

    Do not lay the battery lead under plaster or in armored plastic pipes. Selection of the cable cross-section SMA recommends choosing cable cross-sections greater than those given by ® National Electrical Code 310.15 when the cable lengths exceed 33 ft.
  • Page 42 6  Electrical Connection SMA America, LLC Example for Cable Dimensioning With a 48 V battery voltage and an outgoing AC power of 4,500 W, a current of up to 100 A flows through the SI 4548-US-10 battery cable. At the same battery voltage and an outgoing AC power of 6,000 W, a current of up to 130 A flows through the battery cable of the SI 6048-US-10.

  • Page 43: Cable Protection

    SMA America, LLC 6  Electrical Connection 6.2.3 Cable Protection The DC circuit breaker in the Sunny Island can interrupt DC currents of up to 10 kA. In addition to the internal DC circuit breakers, install a separate, external fuse as close as possible to the battery. Install a fuse link for the fuse suitable for the maximum occurring DC currents.

  • Page 44: Technical Description Si4548_6048-Us-Tb_En-13

    6  Electrical Connection SMA America, LLC DC connection area The areas between the stripped line and the connection area must be clean. This ensures that the transition resistance and the heating of the terminal points is reduced. The Sunny Island has a DC connection for a maximum 3/0 AWG for DC+, DC − and PE.

  • Page 45: Ac Connection

    SMA America, LLC 6  Electrical Connection 6.3 AC Connection 6.3.1 Cable Protection You must connect the Sunny Island via a sub-distribution to the stand-alone grid and any external source present. Fit the sub-distribution with appropriate circuit breakers and observe all locally applicable standards and directives.

  • Page 46: Ac1 (Loads/Sunny Boys)

    6  Electrical Connection SMA America, LLC 6.3.2 AC1 (Loads/Sunny Boys) The sub-distribution of the stand-alone grid (e.g. loads, PV inverter, wind power inverter) is to be connected to output AC1 of the Sunny Island. If you want to fuse individual load circuits in a 120 V grid separately, install circuit breakers with a rated current of up to 20 A: the Sunny Island can safely trigger circuit breakers of up to 20 A.
  • Page 47 SMA America, LLC 6  Electrical Connection Connecting the AC1 Cables: Cable cross-section The maximum cable cross-section for connecting the loads/PV inverters is 4 AWG (25 mm²). 1. Install a conduit with a diameter of in. (19 mm) at the left opening on the left side of the Sunny Island enclosure.

  • Page 48: Ac2 (Generator/Grid)

    6  Electrical Connection SMA America, LLC 6.3.3 AC2 (Generator/Grid) The sub-distribution of the generator or utility grid is to be connected at input AC2 of the Sunny Island. Cable lengths in single-phase, parallel, split-phase, double split-phase and three-phase systems The AC cables between all Sunny Island and the generator/grid in a system must have the same size and length.
  • Page 49 SMA America, LLC 6  Electrical Connection Connecting the AC2 Cables (Generator/Grid): Cable cross-section The maximum cable cross-section for connecting the generator is 4 AWG (25 mm²). 1. Install a conduit with a diameter of in. (19 mm) at the right opening on the left side of the Sunny Island enclosure.

  • Page 50: Additional Connections

    6  Electrical Connection SMA America, LLC 6.4 Additional Connections For installing the connections described below, feed the lines through the specified holes in the cable support sleeve. Plugs for sealing the RJ45 data cable for internal and external communication are provided in the cable insert upon delivery.

  • Page 51: Connecting The Battery Temperature Sensor

    SMA America, LLC 6  Electrical Connection Destruction of the battery through deep discharge as a result of the installation of an unsuitable battery temperature sensor. • Only use the battery temperature sensor included in the scope of delivery. • Do not drill holes into the battery to install the battery temperature sensor.

  • Page 52: Battery Current Sensor

    6  Electrical Connection SMA America, LLC 6.4.2 Battery Current Sensor In addition to the internal measurement, the Sunny Island provides the possibility to measure the battery current via a shunt. You need this function if you intend to operate additional DC generators and DC loads in your off-grid system.
  • Page 53 SMA America, LLC 6  Electrical Connection Connecting the Battery Current Sensor Use cables of intrinsically safe electric circuits Always use lines for intrinsically safe electric circuits for connecting the battery current sensor. Intrinsically safe means that the line is double-insulated and that in the event of a short-circuit the wire melts but the insulation remains intact.

  • Page 54: Communication For Multi-Device Connection

    6  Electrical Connection SMA America, LLC 6.4.3 Communication for Multi-Device Connection The Sunny Island can be connected in parallel, as a split-phase system or in a three-phase system with other Sunny Island devices in order to increase the overall power. The Sunny Island inverters communicate with each other via an RJ45 data cable.

  • Page 55: Multifunction Relay 1 And 2

    SMA America, LLC 6  Electrical Connection 6.4.4 Multifunction Relay 1 and 2 The Sunny Island offers you several options for the control of internal and external processes. For this purpose, two multifunction relays are integrated into the Sunny Island to which you can assign functions using the parameters "241.01 Rly1Op"...
  • Page 56 6  Electrical Connection SMA America, LLC Connection to the Relay Contact Danger to life from electric shock due to incorrect insulation. • Securely disconnect the relay cable from the communication area and the AC area. • Strip the insulated conductors of the relay cable.
  • Page 57 SMA America, LLC 6  Electrical Connection Power Contactor for Load Shedding The Sunny Island can automatically disconnect loads to protect the battery from deep discharge. To do this, an external (AC or DC) power contactor must be installed between the Sunny Island and the loads (see Section 12.1 "Load Shedding", page 102).

  • Page 58: Batvtgout Voltage Supply

    6  Electrical Connection SMA America, LLC Generator Start The Sunny Island can control generators. The Sunny Island directly supports generators that can be started/stopped using a single contact. Default setting of the relays Relay 1 is preset to the "AutoGn" generator start function and relay 2 to the "AutoLodSoc" load shedding function.

  • Page 59: Digin Digital Input

    SMA America, LLC 6  Electrical Connection 6.4.6 DigIn Digital Input The DigIn connection is used as a digital input for external electrical sources. Area of the input voltage at the DigIn input There can be 5 V − 63 V at the DigIn digital input.

  • Page 60: Interface For External Communication

    SMA America, LLC 6.5 Interface for External Communication You can connect SMA communication devices (e.g. Sunny Boy Control, Sunny WebBox) or a PC with the appropriate software to a communication interface. You will find a detailed wiring diagram in the communication device manual, the software or on the Internet at www.SMA-America.com.
  • Page 61 SMA America, LLC 6  Electrical Connection Connecting the Interface for External Communication 1. Remove the right-hand plug from the cable support sleeve. Item Description Slot for communication interface Cable route Enclosure opening in the base of the Sunny Island 2. Lead the cable from into the enclosure opening (C) from outside into the interior of the Sunny Island.
  • Page 62 6  Electrical Connection SMA America, LLC Sunny Boy / RS485– RJ45 pin connector - RJ45 plug color Sunny WebBox code Signal allocation Sunny Island B (Data–) green with white stripes 8. The RS485 data bus of the Sunny Island is terminated using a terminator. This terminator is already plugged into the "ComSmaOut"...
  • Page 63 SMA America, LLC 6  Electrical Connection Data Transmission Speed The Sunny Island can be operated at different data transmission rates to communicate with external devices. For this, set the "250.06 ComBaud" parameter. Setting the baud rate If PV inverters are connected to the communication bus, the baud rate must be set to 1,200 bps (default setting).

  • Page 64: Control Elements

    7  Control Elements SMA America, LLC 7 Control Elements In order to commission the Sunny Island, you should familiarize yourself with its operation beforehand. The individual control elements can be seen in the following figure. Item Description Display Red LED...

  • Page 65: Display Messages

    SMA America, LLC 7  Control Elements 7.1 Display Messages The display of the Sunny Island has two lines, each with 16 characters. Meaning of the symbols Observe the information on the meaning of the individual symbols (see Section 10.6 "Display Messages (Overview)", page 88).

  • Page 66: Buttons

    7  Control Elements SMA America, LLC 7.3 Buttons The table explains the functions of the buttons on the Sunny Island: Button Function cancels the selected function answers NO navigates one menu level higher stops device (when held pressed down) navigates up one list element, increases data value...

  • Page 67: Initial Start-Up

    • Ensure that all electrical connections are connected in accordance with the specifications of this technical description. Always save data Always use the SD card to save data and events. In case of a failure SMA can thus help you quickly. • Always leave the SD card plugged in the Sunny Island.
  • Page 68 If you have a system with more than one Sunny Island, you must take the following measures: • Configure the Sunny Island with the latest firmware version as master or install the latest firmware version in the master (see www.SMA-America.com). The master updates the firmware of the slaves once the off-grid system is started.
  • Page 69 SMA America, LLC 8  Initial Start-Up Systems with one Sunny Island If only one Sunny Island is used in the system, the device type is permanently set to "master" and is not displayed. – System configuration (see table for setting options)
  • Page 70 8  Initial Start-Up SMA America, LLC Value in variable Explanation GenGrid Grid Backup with Generator GenGrid: – Maximum generator current (0 A to 224 A), default setting: "30 A" – Generator interface (Manual, GenMan, Autostart), default setting: "Autostart" – Maximum grid current (0 A to 224 A), default setting: "30 A"...

  • Page 71: Commissioning The Battery Current Sensor

    SMA America, LLC 8  Initial Start-Up 8.3 Commissioning the Battery Current Sensor In the event you have installed a battery current sensor in your system, you are required to synchronize the internal offset of the device. To do this, proceed as follows: 1.
  • Page 72 8  Initial Start-Up SMA America, LLC 8. Reconnect the cables of the battery current sensor correctly as displayed in the graphic. Make sure the lines have the correct polarity when doing this. – BatCur+ to terminal 1 – BatCur– to terminal 2 9.

  • Page 73: Switching On And Off

    SMA America, LLC 9  Switching On and Off 9 Switching On and Off 9.1 Switching On Systems with several Sunny Island inverters Switch on the slaves before you switch on the master. To do this, proceed as follows. 1. Check the following requirements: –...

  • Page 74: Stopping The Sunny Island (Standby)

    9  Switching On and Off SMA America, LLC Wait five seconds. ☑ The Sunny Island skips the QCG and the notification shown here is displayed. 4. Press and hold <ENTER>. ☑ Process bar is shown in the display. ☑ On a slave, the notification displayed here is shown until the master is started.

  • Page 75: Switching Off

    SMA America, LLC 9  Switching On and Off 9.3 Switching Off To switch off the Sunny Island, proceed as follows: "Switching sequence" Only with the sequence shown here can you ensure that all internal meter positions/values are saved. 1. Stop the Sunny Island (see Section 9.2 "Stopping the Sunny Island (Standby)", page 74).

  • Page 76: Si4548_6048-Us-Tb_En-13

    9  Switching On and Off SMA America, LLC 1. Switch the DC circuit breaker of the Sunny Island to "OFF". Danger to life due to high voltages in the Sunny Island. Risk of death or serious injury due to electric shock.

  • Page 77: Operation

    SMA America, LLC 10  Operation 10 Operation The main menu consists of a "Home Screen" and the other main menu entries, which split up into the different menu levels. Operating states, for example, the current operating mode, power, etc. are displayed on the "Home Screen"...

  • Page 78: Menu Structure

    10  Operation SMA America, LLC The Sunny Island utilizes an operation concept referred to as "Single Point of Operation". For a system with more than one Sunny Island, all entries are made on the master. There, you configure the entire system, confirm events, warnings and errors in the QCG (see Section 8 "Initial Start-Up", page 67), and perform firmware updates when required (see Section 11.6 "Updating the...
  • Page 79 SMA America, LLC 10  Operation Overview of the Menu Structure: Technical description SI4548_6048-US-TB_en-13...
  • Page 80 10  Operation SMA America, LLC 100# Meters - Display values In this main menu, you will find the display values for the following components of the off-grid system: • 110# Inverter Meters − Sunny Island • 120# Battery Meters −...

  • Page 81: Changing Parameters

    SMA America, LLC 10  Operation 10.2 Changing Parameters Using the up and down arrow buttons, you navigate through a selected menu to view or change a parameter, for example. When the relevant parameter is displayed, you can read off its present value.

  • Page 82: Direct Access - Direct Access To The Parameters

    10  Operation SMA America, LLC 10.3 Direct Access - Direct Access to the Parameters The "600# Direct Access" menu gives you direct access to the selected parameter using the parameter name or number. Via the Select Name sub-menu, you have direct access to the following functions: •...
  • Page 83 SMA America, LLC 10  Operation Bat 1 (Battery Value 1) Item Description Name of the compact meter Present battery state of charge (BatSoc) Estimated error of the state of charge (BatSocErr) Total battery current of the cluster (TotBatCur) Battery temperature (BatTmp)
  • Page 84 10  Operation SMA America, LLC Inv (AC Values of Inverter) Item Description Name of the compact meter Present voltage at the inverter (InvVtg) Present frequency at the inverter (InvFrq) Present active power of the inverter (InvPwrAt) Present reactive power at the inverter (InvPwrPt)
  • Page 85 SMA America, LLC 10  Operation Ext (AC Values of External Source) Item Description Name of the compact meter Voltage of the external source (ExtVtg) Frequency of the external source (ExtFrq) Active power of the external source (ExtPwrAt) Reactive power of the external source (ExtPwrPt)

  • Page 86: Entering The Installer Password

    10  Operation SMA America, LLC OpStt (Inverter and Generator Status) Item Description Name of the compact meter Operating state of the inverter (InvOpStt) State of the generator (GnStt) 10.5 Entering the Installer Password Entering incorrect parameters endangers operational safety. Damage to the off-grid system and its components.
  • Page 87 SMA America, LLC 10  Operation Proceed as follows to enter the installer password from the "Home Screen": 1. Keep pressing the "arrow down" key until the "200# Settings" menu is displayed. 2. Press <ENTER>. 3. Keep pressing the "arrow down" key until the "280# Password Setting"...

  • Page 88: Display Messages (Overview)

    10  Operation SMA America, LLC 10.6 Display Messages (Overview) The display has two lines, each with 16 characters. The first line shows the menu number and the menu name, or the name of the parameter where applicable. The menu name is supplemented or the added text is displayed (e.g.
  • Page 89 SMA America, LLC 10  Operation • Meters (always one of five possibilities, depending on priority) – Remaining absorption time – Remaining generator warm up time – Remaining Run1h time for the generator – Remaining time of Timer 1 – Remaining time of Timer 2 •...
  • Page 90 10  Operation SMA America, LLC Symbol Meaning The Sunny Island is configured as master. The Sunny Island is configured as slave 1. The Sunny Island is configured as slave 2. Status of the external source: Voltage and frequency of the generator/grid are within set limits.

  • Page 91: Parameter Display

    SMA America, LLC 10  Operation Symbol Meaning Warning message is displayed (at position (H): This symbol blinks until you have confirmed the warning or the error in the menu "410# Failures Current" or "420# Failure History". Display "Generator Status" and "Request Reason"...

  • Page 92: Display Of Events

    10  Operation SMA America, LLC 10.8 Display of Events The Sunny Island can display a list of events: The serial number (quantity) of the event is displayed in the upper line. Display of time and date and time changes in 2-second intervals. The number of the event and the corresponding short text are given in the lower line.

  • Page 93: Archiving Data On An Sd Card

    3 figures after the dot. Type of memory card SMA recommends the use of a Transcend SD card. If you use a memory card from another manufacturer, check whether the card is FAT-16 formatted. If necessary, format the card. Be aware that data stored on the card will be lost.
  • Page 94 This file is saved after changing a parameter. update.bin Software for the device batstat.txt Statistical values of the battery. These values are saved every day at 10:00 p.m. batstat.sma Internal data from SMA si.ccf System information from Sunny Island. SI4548_6048-US-TB_en-13 Technical description...
  • Page 95 • External source • Loads Always save data Always use the SD card to save data and events. In case of a failure SMA can thus help you quickly. 1. In the event of a fault contact the SMA Service Line.

  • Page 96: Inserting The Sd Card

    11  Archiving Data on an SD Card SMA America, LLC 11.1 Inserting the SD Card Electrostatic discharge when inserting the SD card. Electrostatic discharges can damage the Sunny Island components. • Ground yourself before you insert or remove the SD card from the Sunny Island enclosure.

  • Page 97: Removing The Sd Card

    SMA America, LLC 11  Archiving Data on an SD Card 11.2 Removing the SD Card To ensure that all log data is saved upon deactivation, write all data not yet saved from the buffer to the SD card by using the parameter "550.03 CardFunc" with the option "ForcedWrite".

  • Page 98: Status Messages

    11  Archiving Data on an SD Card SMA America, LLC 11.5 Status Messages Using the "312.07 CardStt" parameter, you can request the status of your SD card: Display Description The SD card is deactivated. The SD card is activated. The memory capacity of your SD card has been exceeded.

  • Page 99: Updating The Firmware

    1. Create a backup copy of the existing parameter lists (see Section 11.3 "Saving and Loading Parameters", page 97). 2. Download the latest firmware version from the Internet at www.SMA-America.com. 3. Copy the "UPDATE.BIN" file onto the SD card. 4. Set the master device to standby.
  • Page 100 11  Archiving Data on an SD Card SMA America, LLC Starting QCG If you have carried out a firmware update in which the number before the dot in the firmware version has changed, it is advisable to start QCG and to perform all settings anew.
  • Page 101 SMA America, LLC 11  Archiving Data on an SD Card Display message Display from Explanation Master The master update starts. Master Master update part 1/2. Master Master update part 2/2. ⋮ Master The slave update starts. ⋮ Master The slave update is running.

  • Page 102: Additional Functions

    12  Additional Functions SMA America, LLC 12 Additional Functions 12.1 Load Shedding If the loads connected to the Sunny Island use more energy over an extended period than the energy produced by the generators connected, the battery can deeply discharge. The Sunny Island shuts down automatically if the state of charge of the battery is too low.
  • Page 103 SMA America, LLC 12  Additional Functions The figure shows an example of the settings if the one-step load shedding function at night is to be avoided as much as possible. From 6:00 a.m. to 10:00 p.m. the load shedding is activated for a state of charge (SOC) of 40%, at nighttime (from 10:00 p.m.

  • Page 104: Sleep Mode

    In the event of overload the Sunny Island 4548-US supplies a power of 5,300 W for 30 minutes at 77°F (25°C) and the Sunny Island 6048-US a power of 7,000 W. Both Sunny Island inverters can deliver a power of 7,200 W for five minutes at 77°F (25°C). The available power can even reach 8,400 W for one minute at 77°F (25°C).

  • Page 105: Device Faults And Autostart

    SMA America, LLC 12  Additional Functions 12.6 Device Faults and Autostart If a critical fault occurs, the Sunny Island automatically shuts down and displays the reason on the display. If the autostart function is activated (parameter "250.01 AutoStr") the Sunny Island can confirm the fault automatically and restart on its own.

  • Page 106: Battery Management

    13  Battery Management SMA America, LLC 13 Battery Management The battery management of the Sunny Island supports the following three battery types ("221.01 BatTyp" parameter): Flooded Lead Acid: Closed lead-acid batteries with liquid electrolyte in all standard designs available on the market (grid plate, tubular plate, small, large, etc.).

  • Page 107: Battery Temperature

    SMA America, LLC 13  Battery Management 13.1 Battery Temperature The Sunny Island continuously monitors the battery temperature using the battery temperature sensor provided. At 9°F (5°C) below the maximum permissible temperature (parameter "221.04 BatTmpMax"), a warning is displayed. If the maximum value for the battery temperature is exceeded, the Sunny Island switches off.
  • Page 108 13  Battery Management SMA America, LLC Since full charge states are generally only rarely achieved during a grid failure, the operation used here can also utilize the battery voltage during constant discharge phases with low discharge currents to recalibrate the state of charge. Compared to the ampere-hour balancing method, the operation used here exhibits a high level of stability over the long term when recalibrated at regular intervals.

  • Page 109: Charge Control

    SMA America, LLC 13  Battery Management 13.4 Charge Control The Sunny Island uses a three-phase charge control, using the IUoU procedure. When operating with the utility grid, a fourth level, Silent Mode, is optionally available. The I stands for the constant current phase (I phase). In this phase, the charging is limited by the maximum defined battery current (parameter "222.01 BatChrgCurMax"), the nominal generator...
  • Page 110 13  Battery Management SMA America, LLC The following figure shows the relationship and the flowchart of the charging phases and charging processes. Once this constant voltage phase is finished, the Sunny Island switches to float charge which again carries out constant voltage charging but at a greatly reduced charging voltage ("222.10 ChrgVtgFlo"...

  • Page 111: Boost Charge

    SMA America, LLC 13  Battery Management 13.4.1 Boost Charge The boost charge is the most common charging process of the Sunny Island. The boost charge ensures a high generator workload through a high charging voltage over a short period of time. With liquid FLA lead-acid batteries, this charge process should be used for gassing and thus compensating the electrolytes.

  • Page 112: Equalization Charge

    13  Battery Management SMA America, LLC 13.4.3 Equalization Charge A battery storage system consists of many individual battery cells connected in series which all behave slightly different. Over time, this results in different states of charge in the individual cells. This can lead to premature failure, initially of individual cells, and finally to failure of the entire bank.

  • Page 113: Silent Mode

    SMA America, LLC 13  Battery Management 13.4.5 Silent Mode In addition to the float charge, the silent mode can only be used ("224.01 SilentEna" parameter) when operating with the utility grid in the operating mode "GridCharge". The main purpose of the silent mode is to save energy by switching from charge mode to standby mode in backup systems where the Sunny Island is predominantly in float charge.
  • Page 114 13  Battery Management SMA America, LLC Level 3: The third level ensures that the battery is protected from deep discharge and thus protected against damage. In this case, the Sunny Island is switched off completely. • To recommission the Sunny Island, restart it (see Section 9.5 "Reactivating the Device Following Automatic Shutdown", page 75).

  • Page 115: Battery Diagnosis

    SMA America, LLC 13  Battery Management 13.6 Battery Diagnosis The "320# Battery Diagnosis" menu displays several values that provide information on the past operational behavior of the battery. These values are helpful in checking the efficiency of the set parameters and in viewing the typical operating conditions of the battery (see Section 19.3 "Diagnosis (300#)", page 193).

  • Page 116: Connecting External Sources

    14  Connecting External Sources SMA America, LLC 14 Connecting External Sources The Sunny Island supports the integration of external energy sources. Here, a distinction is made between the integration of a generator and the integration of the utility grid. Both the generator as well as the utility grid are integrated through the AC2 connection of the Sunny Island.
  • Page 117 SMA America, LLC 14  Connecting External Sources Sunny Island connected in parallel to a 120 V generator Sunny Island in the split-phase system to a 240 V generator Generally the internal transfer relays of the slaves close only if the internal relay of the master is closed.

  • Page 118: Generator Start Options

    14  Connecting External Sources SMA America, LLC Cable lengths and cross-sections Use the same cable lengths and cable cross-sections when installing the Sunny Island with the generator. 14.1.2 Generator Start Options The Sunny Island supports the following options for starting the generator which can be set in standby mode with the "234.07 GnStrMod"...
  • Page 119 SMA America, LLC 14  Connecting External Sources GenReq signal The GnReq signal (see Section 15 "Relays", page 140) is set for signaling the generator request and can thus be used as an alarm contact (in this case: a bulb). If no request is pending, the signal is reset.

  • Page 120: Generator Operation

    14  Connecting External Sources SMA America, LLC The following figure shows the wiring for a generator capable of autostart: If the generator is started manually in this operating mode, the Sunny Island detects the running generator and connects once the warm-up time has expired. If the generator is externally stopped, this is detected, the generator is disconnected and the stand-alone grid is continued to be supplied.

  • Page 121: Manual Generator Operation

    SMA America, LLC 14  Connecting External Sources 14.1.4 Manual Generator Operation The manual operating modes for the generator management are tripped using the "540.01 GnManStr" parameter. Here, a distinction is made between the following operating modes: Auto: In this operating mode, the generator is automatically started due to the settings.

  • Page 122: Automatic Generator Operation

    14  Connecting External Sources SMA America, LLC Generator Interface "234.07 GnStrMod" = Autostart; Start at the Generator Manual generator start "Generator is running" detected, beginning of warm up phase Warm-up phase completed Generator is connected Generator current limit Current is reduced, battery absorption phase...
  • Page 123 SMA America, LLC 14  Connecting External Sources The time intervals t1 and t2 are assigned charge states for start-up and stop with the "235.03 GnSocTm1Str", "235.04 GnSocTm1Stp", "235.05 GnSocTm2Str" and "235.06 GnSocTm2Stp" parameters. GnSocTm1Str designates the battery state of charge at which the generator is started during the t1 time and GnSocTm1Stp designates the state of charge at which the generator is switched off during t1.
  • Page 124 14  Connecting External Sources SMA America, LLC Multi-phase system Only the total load power of all line conductors is monitored. Individual phases in a multi-phase system are not monitored. The load power is calculated using the Sunny Island power ("111.01 TotInvPwrAt" parameter) and generator power ("131.01 TotExtPwrAt"...

  • Page 125: Limits And Power Control

    SMA America, LLC 14  Connecting External Sources 14.1.6 Limits and Power Control The voltage limits can be set using the "234.01 GnVtgMin" and "234.02 GnVtgMax" parameters and the frequency limits for generator operation can be set using the "234.05 GnFrqMin" and "234.06 GnFrqMax"...

  • Page 126: Run Times

    14  Connecting External Sources SMA America, LLC 14.1.7 Run Times If the generator is started (or the Sunny Island detects an external generator start), the warm-up phase starts. If, during this time, the voltage or frequency detected is not within the permissible range, the warm-up time begins again.

  • Page 127: Operation Together With Pv Inverters And Wind Power Inverters

    SMA America, LLC 14  Connecting External Sources The "133.03 GnRmgTm" display value is used to display the remaining time of the generator meter. Depending on the current request or the phase in which the generator state machine is, the following times are displayed: •...

  • Page 128: Stopping The Generator

    14  Connecting External Sources SMA America, LLC 14.1.9 Stopping the Generator If the generator was started via the Sunny Island (automatically or manually), it can be manually stopped at any time using the "540.01 GnManStr" parameter. This results in the generator being disconnected (the minimum run time is not taken into account here) and the after-run time (Cool) is skipped.

  • Page 129: Disturbances

    SMA America, LLC 14  Connecting External Sources 14.1.11 Disturbances Reverse Power If the reverse power ("234.13 GnRvPwr" parameter) set for the "234.14 GnRvTm" time is exceeded, the generator is disconnected and stopped. The power-down time (Cool, parameter "234.10 GnCoolTm") is skipped and the system transitions into the minimum stop time (Lock). After reverse power, connection is blocked for at least "231.03 ExtLkTm"...

  • Page 130: Limits Of The Voltage Range And Frequency Range

    14  Connecting External Sources SMA America, LLC 14.2.1 Limits of the Voltage Range and Frequency Range In order to operate on the grid, very strict limits (for voltage and frequency) must generally be maintained. These strict limits are not sensible for generator operation. The limits are therefore set separately for grid operation and the generator limits are not used.

  • Page 131: Grid Reconnection

    SMA America, LLC 14  Connecting External Sources 14.2.5 Grid Reconnection In stand-alone grid operation, the Sunny Island constantly checks whether the grid has been reconnected (see above). The following conditions have to be fulfilled to guarantee that the Sunny Island synchronizes with the transmission line and connects to the transmission line: •...
  • Page 132 14  Connecting External Sources SMA America, LLC You can configure the Sunny Island in such a way that it charges its battery automatically via the grid as soon as the state of charge is low. To activate this function, set the "232.41 GdSocEna" parameter to "Enable"...
  • Page 133 SMA America, LLC 14  Connecting External Sources Silent Mode In order to save energy, the silent mode can be activated using the "224.01 SilentEna" parameter set to "enable" (default disable). In this case, the Sunny Island is set to standby mode if the charge has been completed and the battery has been in float charge for some time (see Section 13.4.5 "Silent...

  • Page 134: Grid Failure

    14  Connecting External Sources SMA America, LLC The following illustration shows the direction of energy flow for the "Net Metering" and the energy consumption from the utility grid. 14.2.7 Grid Failure A grid failure is characterized by the voltage or frequency being outside of the permissible limits (see Section 14.2.5 "Grid Reconnection", page 131) or the utility grid being disconnected.

  • Page 135: Disturbances

    SMA America, LLC 14  Connecting External Sources 14.2.8 Disturbances Reverse Power If the defined reverse power ("232.09 GdRvPwr" parameter) is exceeded for the time "232.10 GdRvTm", the grid is disconnected. After reverse power, connection is blocked for at least "231.03 ExtLkTm".

  • Page 136: Operation Together With Pv Inverters And Wind Power Inverters

    14  Connecting External Sources SMA America, LLC 14.2.10 Operation Together with PV Inverters and Wind Power Inverters Overload of the Sunny Island through high currents. Destruction of the Sunny Island. If the current via the relay exceeds the maximum permissible current, the Sunny Island disconnects from the grid (relay protection).

  • Page 137: Generator And Grid

    • If no switch is installed, install a switch. Refer to the download area at www.SMA-America.com for further information on how to install a switch for connecting the Sunny Island to the utility grid and to a generator.
  • Page 138 14  Connecting External Sources SMA America, LLC The Sunny Island has one AC external source connection labeled AC2 Grid/Generator. With only one external connection, the DigIn input is used to distinguish between the generator or line voltage. If the DigIn input detects an open electric circuit, the Sunny Island is operated with grid parameters and can feed excess electric current into the utility grid.
  • Page 139 SMA America, LLC 14  Connecting External Sources The signal circuit occupies two auxiliary contactors at the DigIn input: 1. Connect the negative pole of the DigIn connection on the Sunny Island to the negative pole of the BatVtgOut connection, also located on the Sunny Island.

  • Page 140: Relays

    15  Relays SMA America, LLC 15 Relays The Sunny Island offers you several options for the control of internal and external processes. For this purpose, two relays are integrated into the device, to which you can assign functions using the parameters "241.01 Rly1Op"...
  • Page 141 SMA America, LLC 15  Relays Function/ Meaning Function description Setting Error Error Sunny Island has a fault; in case of fault, contact is open (relay is deactivated). If the autostart is activated, the error status will be left within 15 s and restart triggered. If the start is unsuccessful this procedure will be repeated until the autostart counter has expired.
  • Page 142 15  Relays SMA America, LLC Function/ Meaning Function description Setting CHPAdd Request additional CHP plant Request of additional CHP plant through the CHP plant control SiComRemote Remote control via SI Com The relay can be controlled remotely via the SI module.

  • Page 143: Multicluster Operation

    SMA America, LLC 16  Multicluster Operation 16 Multicluster Operation 16.1 Communication between the Sunny Island inverters For increased output, up to four Sunny Island clusters can be interconnected to form a Multicluster system. A Multicluster Box for Sunny Island 4548-US / 5048-US /6048-US (MCB-12U) is necessary for such systems.
  • Page 144 16  Multicluster Operation SMA America, LLC RJ45 cable The RJ45 data cable is a standard Cat5e-FTP cable (simple shielding), with gold contacts. Each Multicluster Piggy-Back (MC-PB) is delivered with one yellow and one gray RJ45 data cable and two plugs (terminators).

  • Page 145: Initial Start-Up Of The Multicluster System

    SMA America, LLC 16  Multicluster Operation 16.2 Initial Start-Up of the Multicluster System Possible load shedding during initial start-up of a multicluster system Unwanted load shedding can occur during the initial start-up of a multicluster system. The possible causes of this can be a too-low state of charge of the battery or a still too inaccurate charge level calculation in the Sunny Island.

  • Page 146: Switching A Multicluster System On And Off

    16  Multicluster Operation SMA America, LLC 16.3 Switching a Multicluster System On and Off 16.3.1 Activation/Startup Switching on a Multicluster system can only take place at the master of the main cluster. The extension clusters will be started automatically after starting the main cluster. To do this, the DC circuit breakers of all Sunny Islands in the extension cluster must be set to "ON".

  • Page 147: Load Shedding In A Multicluster System

    SMA America, LLC 16  Multicluster Operation 16.3.3 Load Shedding in a Multicluster System The load-shedding contactor in the Multicluster Box is controlled depending on the state of charge of the batteries. Significance of the SOC limiting values: When the state of charge of a battery reaches the lower SOC limiting value, the load-shedding contactor is opened.

  • Page 148: Testing The Multicluster Communication

    16  Multicluster Operation SMA America, LLC Nominal capacity of the battery storage systems Ideally, the various battery storage systems should all have the same nominal capacity. If the nominal capacity varies by up to 30%, a similar average state of charge is ensured via the equalization function.

  • Page 149: Error Handling In The Multicluster System

    SMA America, LLC 16  Multicluster Operation 16.9 Error Handling in the Multicluster System For Multicluster system operation, the entire main cluster is always required. If a device in the main cluster fails (master and/or slave), this causes the main cluster to stop.

  • Page 150: Pv Inverters

    17  PV Inverters SMA America, LLC 17 PV Inverters The following section provides information on the connection and configuration of the Sunny Boy inverter in stand-alone grid systems. The Sunny Island together with the Sunny Boy inverter are optimized for back-up operation (grid-tied) and for "Off-Grid"...

  • Page 151: Setting Of The Off-Grid Parameter

    (SMA order number: "USBPBS-11" ‒ USB service interface) 17.4 Sunny Boy Parameter Settings You will find the latest information in the download area at www.SMA-America.com in the technical information "PV Inverters – Use of PV inverters in off-grid systems and backup systems in North and South America".
  • Page 152 17  PV Inverters SMA America, LLC PV inverters Parameters "Default" "CntrySet" "BackupMode" "Op.BckOpMod" Sunny Boy 3000-US UL1741 − On all** − Sunny Boy 4000-US UL1741 − On all** − Sunny Boy 5000-US UL1741 − On all** − Sunny Boy 6000-US UL1741 −...
  • Page 153 SMA America, LLC 17  PV Inverters Stand-Alone Grid With or Without Generator PV inverters Parameters "Default" "CntrySet" "BackupMode" "Op.BckOpMod" Sunny Boy 700-U Off-Grid − − − Sunny Boy 1800-U Off-Grid − − − Sunny Boy 2100-U Off-Grid − − −...

  • Page 154: Frequency-Shift Power Control (Fspc)

    17  PV Inverters SMA America, LLC The "OffGrid" parameter setting automatically sets the following Sunny Boy parameters to the values below: Parameter Short descr. Value Test current Off (MSD = 0) Vac.Min –12% V AC Nom Vac.Max +10% V AC Nom* Fac-delta–...
  • Page 155 SMA America, LLC 17  PV Inverters This function is shown in the following figure: The different settings have the following meanings: • f refers to the base frequency of the micro grid created by the Sunny Island. • f Delta– and f...

  • Page 156: Maintenance And Care

    Dispose of the Sunny Island at the end of its electrical endurance in accordance with the disposal regulations for electronic waste which apply at the installation site at that time. Alternatively, send the devices back to SMA with shipping paid by sender, and labeled with the information "FOR DISPOSAL" (see Section 24 "Contact", page 239).

  • Page 157: Parameter Lists

    SMA America, LLC 19  Parameter Lists 19 Parameter Lists Only parameters in the menu branches "200 Settings" and "500 Operation" can be changed. All other values are only shown on the display of the SI 4548-US-10/6048-US-10. All menu items that can only be changed by the installer using a password are shaded in gray in the following tables.
  • Page 158 19  Parameter Lists SMA America, LLC No. Name Description Value clear text Explanation (No.) InvCur Current of the Sunny Island in A InvFrq Frequency of the Sunny Island in Hz InvPwrRt Reactive power of the Sunny Island in kVAr Rly1Stt...
  • Page 159 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Rly1SttSlv1 State of relay 1 on Relay open slave 1 Relay closed Rly2SttSlv1 State of relay 2 on Relay open slave 1 Relay closed 114# Inverter Slave2 Meters No. Name...

  • Page 160: Battery Meters (120#)

    19  Parameter Lists SMA America, LLC No. Name Description Value Explanation InvPwrAtSlv3 Active power of slave 3 in kW InvVtgSlv3 Voltage of slave 3 in V InvCurSlv3 Current of slave 3 in A InvPwrRtSlv3 Reactive power of slave 3 in kVAr...

  • Page 161: External Meters (130#)

    SMA America, LLC 19  Parameter Lists No. Name Description Value clear text Explanation (No.) BatTmp Battery temperature in °C RmgTmFul Remaining time until next full charge in days RmgTmEqu Remaining time until next equalization charge in days AptPhs Status of the...
  • Page 162 19  Parameter Lists SMA America, LLC 133# Generator State No. Name Description Value clear text Explanation (No.) GnDmdSrc Source for None (1) No request generator request Bat (2) State-dependent battery charging Lod (3) Load-dependent Tim (4) Time-controlled Run1h (5) Requested for 1 hour...
  • Page 163 SMA America, LLC 19  Parameter Lists 134# Device Meters No. Name Description ExtPwrAt Active power of the external source in kW ExtVtg Voltage of the external source in V ExtCur Current of the external source in A ExtFrq Frequency of the external source in Hz...

  • Page 164: Charge Controller (140#)(Not Ul-Certified)

    19  Parameter Lists SMA America, LLC 138# Chp Meters (Combined Heat and Power) No. Name Description Value Explanation ChpStt State of CHP plant Idle Operation Lock Locked after operation ChpPwrAt Power of the CHP plant ChpRmgTm Remaining time of the...
  • Page 165 SMA America, LLC 19  Parameter Lists No. Name Description Sic1BatVtg Battery voltage of the first Sunny Island Charger in V Sic1BatCur Battery current of the first Sunny Island Charger in A Sic1HsTmp Heat sink temperature of the first Sunny Island Charger in °C...

  • Page 166: Adjustable Parameters

    19  Parameter Lists SMA America, LLC 145# SIC50 4 No. Name Description Sic4EgyCntIn Energy of the fourth Sunny Island Charger in kWh Sic4TdyEgyCntIn Daily yield of the fourth Sunny Island Charger in kWh Sic4PvPwr PV power of the fourth Sunny Island Charger in W...

  • Page 167: Battery Settings (220#)

    SMA America, LLC 19  Parameter Lists 19.2.2 Battery Settings (220#) 221# Battery Property No. Name Description Value Explanation Default value BatTyp Battery type VRLA Lead-acid battery VRLA with immobilized electrolyte in gel or AGM (Absorbent Glass Mat Separator) Valve-regulated lead-acid battery...
  • Page 168 19  Parameter Lists SMA America, LLC #222 Battery Charge Mode No. Name Description Value Explanation Default value BatChrgCurMax Charging current 10 A to 1200 A 61 A of the battery AptTmBoost Absorption time for 1 min to 600 min VRLA...
  • Page 169 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value AutoEquChrgEn Automatic Disable Disable Enable equalization Enable Enable charge #223 Battery Protection No. Name Description Value Default value BatPro1TmStr Starting time of the 22:00:00 battery-preservatio n mode (level 1)
  • Page 170 19  Parameter Lists SMA America, LLC #224 Battery Silent Mode No. Name Description Value Explanation Default value SilentEna Silent mode on the Disable Disable Disable grid Enable Enable SilentTmFlo Maximum time for 1 h to 48 h float charge until...

  • Page 171: External Settings (230#)

    SMA America, LLC 19  Parameter Lists 19.2.3 External Settings (230#) 231# Ext General No. Name Description Value Explanation Default value PvFeedTmStr Start feed-in 04:00:00 operation PvFeedTmStp Stop feed-in 22:00:00 operation ExtLkTm Lock time after 0 min to 60 min 20 min...
  • Page 172 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value GdVldTm Minimum time 300 sec required for grid (voltage and frequency) to be within permissible range for connection GdMod Grid interface GridCharge Charging on the GdFeed grid...
  • Page 173 SMA America, LLC 19  Parameter Lists 233# Grid Start No. Name Description Value Explanation Default value GdSocTm1Str SOC limit for switching on the grid for time 1 GdSocTm1Stp SOC limit for switching off the grid for time 1 GdSocTm2Str SOC limit for...
  • Page 174 19  Parameter Lists SMA America, LLC 234# Generator Control No. Name Description Value Explanation Default value GnVtgMin Minimum 80 V generator voltage GnVtgMax Maximum 150 V generator voltage GnCurNom Nominal generator 30 A current GnFrqNom Generator nominal 60 Hz frequency with...
  • Page 175 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value GnCtlMod Generator Current regulation CurFrq Frequency GnAlSns AI sensitivity Normal Medium Medium Normal Normal High High 235# Generator Start No. Name Description Value Explanation Default value GnAutoEna...
  • Page 176 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value GnTm2Str Time 2 for generator request in hours, minutes and seconds Begin: Time 2, End: Time 1 GnPwrEna Generator request Disable based on power Enable GnPwrStr Generator request...
  • Page 177 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value GnTmOpCyc Repeat cycle of the Single One-time Single time controlled Daily Daily generator Weekly Weekly operation GnStrChrgMod Generator start for Both charge type Full Full charge Equal...
  • Page 178 19  Parameter Lists SMA America, LLC 236# CHP Control (Combined Heat and Power) No. Name Description Value Explanation Default value ChpOpTmMin Minimum run time 60 min of CHP plant ChpStpTmMin Minimum stop time 10 min of CHP plant ChpPwrMax Maximum power...
  • Page 179 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value ChpTm1Str Time 1 for CHP plant request in hours, minutes and seconds Begin: Time 1, End: Time 2 ChpTm2Str Time 2 for CHP plant request in hours, minutes and...

  • Page 180: Relay Settings (240#)

    19  Parameter Lists SMA America, LLC 19.2.4 Relay Settings (240#) 241# Relay General No. Name Description Value Explanation Default value Rly1Op Function of relay 1 Off AutoGn AutoGn Generator request AutoLodExt External loadshedding AutoLod1Soc SOC1 Loadshedding AutoLod2Soc SOC2 Loadshedding Tmr1...
  • Page 181 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value Rly2Op Function of relay 2 Off AutoLod AutoGn Generator request AutoLodExt External loadshedding AutoLod1Soc SOC1 Loadshedding AutoLod2Soc SOC2 Loadshedding Tmr1 Timer 1 Tmr2 Timer 2 AptPhs Absorption phase...
  • Page 182 19  Parameter Lists SMA America, LLC 242# Relay Load No. Name Description Value Explanation Default value Lod1SocTm1Str SOC limit for load shedding 1 start for t1 Lod1SocTm1Stp SOC limit for load shedding 1 stop for t1 Lod1SocTm2Str SOC limit for load...
  • Page 183 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value Lod2Tm1Str Time 1 for Loadshed 2 in hours, minutes and seconds Begin: Time 1, End: Time 2 Lod2Tm2Str Time 2 for Loadshed 2 in hours, minutes and...
  • Page 184 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value RlyTmr2Dur Running time for relay control timer 2 in hours, minutes and seconds RlyTmr2Cyc Repetition cycle Single One-time Single time for timer 2 Daily Daily Weekly Weekly 244# Relay Slave1 No.
  • Page 185 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value Rly1OpSlv1 BatFan Battery fan (room) AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request CHPAdd Additional CHP plant request SiComRemote SI Com module...
  • Page 186 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value Rly2OpSlv1 AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request CHPAdd Additional CHP plant request SiComRemote SI Com module Overload Overload 245# Relay Slave2 No.
  • Page 187 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value Rly1OpSlv2 Function of relay 1 Operation on slave 2 BatFan Battery fan (room) AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request...
  • Page 188 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value Rly2OpSlv2 Function of relay 2 BatFan Battery fan (room) on slave 2 AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request CHPAdd...
  • Page 189 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value Rly1OpSlv3 Function of relay 1 Warn Warning on slave 3 Operation BatFan Battery fan (room) AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request...

  • Page 190: System Settings (250#)

    19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value Rly2OpSlv3 Function of relay 2 Operation on slave 3 BatFan Battery fan (room) AcdCir Acid circulation MccBatFan Multicluster battery room ventilator MccAutoLod Loadshedding CHPReq CHP plant request...
  • Page 191 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value ClstCfg Cluster Slave1 Cluster slave 1 1Phase1 configuration Slave2 Cluster slave 2 Slave3 Cluster slave 3 1Phase1 Single-phase, 1 Sunny Island 1Phase2 Single-phase, 2 Sunny Island 1Phase3...

  • Page 192: Password Setting (280#)

    19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value SlpStrTm Start time for 20:00:00 overnight shutdown (sleep mode) SlpStpTm Stop time for 05:00:00 overnight shutdown (sleep mode) Type of MCB-12U MC-Box-12 Multicluster Box used ClstMod Cluster type in...

  • Page 193: Diagnosis (300#)

    SMA America, LLC 19  Parameter Lists 19.3 Diagnosis (300#) 19.3.1 Inverter Diagnosis (310#) 311# System Total Diagnosis Name Description EgyCntIn Energy absorbed in kWh EgyCntOut Energy fed in kWh EgyCntTm Energy metering run time in hours 312# Inverter Device Diagnosis No.
  • Page 194 19  Parameter Lists SMA America, LLC No. Name Description Value clear text Explanation Default (No.) value CardStt SD card status Off (1) None message Operational (2) Busy Mount (3) Initialization OutOfSpace (4) No storage space available BadFileSys (5) No file system...
  • Page 195 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation OpSttSlv1 Operating state of Operating Operation slave 1 Warning Warning Failure Error FwVer2Slv1 DSP firmware version of slave 1 FwVer3Slv1 OCU bootloader of slave 1 FwVer4Slv1 DSP bootloader of...

  • Page 196: Battery Diagnosis (320#)

    19  Parameter Lists SMA America, LLC 315# Inverter Slave3 Diagnosis No. Name Description Value Explanation FwVerSlv3 Firmware version of slave 3 SNSlv3 Serial number of slave 3 OnTmhSlv3 Operating hours of slave 3 in hours PhSlv3 Phase position of Line conductor L1...
  • Page 197 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value BatEgyCntOut Energy meter for battery discharge in kWh AhCntIn Meter for battery charging ampere-hours AhCntOut Meter for battery discharging ampere-hours BatTmpPkMin Minimum battery temperature in °C BatTmpPkMax Maximum battery temperature in °C...
  • Page 198 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value BatCurPkIn Maximum battery current in the charging direction (in A) BatCurPkOut Maximum battery current in discharging direction (in A) SocHgm100 Frequency scale of state of charge, in percent, 100% >...
  • Page 199 SMA America, LLC 19  Parameter Lists No. Name Description Value Explanation Default value SocHgm030 Frequency scale of state of charge, in percent, 30% > SOC >= 20% SocHgm020 Frequency scale of state of charge, in percent, 20% > SOC >= 10%...

  • Page 200: External Diagnosis (330#)

    19  Parameter Lists SMA America, LLC 19.3.3 External Diagnosis (330#) 331# Grid Diagnosis No. Name Description GdEgyCntIn Energy meter for grid feed-in in kWh GdEgyCntOut Energy meter for power taken from the grid in kWh GdEgyTmh Running time of grid energy meter in hours...

  • Page 201: Events, Warnings And Errors (History)

    SMA America, LLC 19  Parameter Lists 19.4 Events, Warnings and Errors (History) 19.4.1 Failure/Event (400#) Observe the information on the menus "410# Failures Current", "420# Failure History" and "430# Event History" (see Section 10.9 "Display of Warnings and Failures", page 92).
  • Page 202 19  Parameter Lists SMA America, LLC No. Name Description Value Explanation Default value CntRs Delete energy Sunny Island meter Battery The value indicates Generator which energy Grid meter is to be deleted. All energy meters Sic1 Sunny Island Charger 1...
  • Page 203 SMA America, LLC 19  Parameter Lists 540# Operation Generator No. Name Description Value Explanation Default value GnManStr Manual generator Auto Automatic Auto start Stop Stop Start Starting Run1h Run for 1 h GnAck Error confirmation Ackn Failure confirmation for generator fault 550# Operation MMC No.

  • Page 204: Direct Access To The Parameters

    20  Troubleshooting SMA America, LLC 19.6 Direct Access to the Parameters 19.6.1 Direct Access (600#) Observe the information for the direct accessing of the parameters (see Section 10.3 "Direct Access - Direct Access to the Parameters", page 82). 20 Troubleshooting In general the Sunny Island distinguishes between events and errors.

  • Page 205: Master-Slave Handling

    SMA America, LLC 20  Troubleshooting 20.3 Master-Slave Handling Each device detects the errors separately and saves them. The slaves transmit their errors to the master. The master collects these error messages and enters the slave errors as warnings into its history.

  • Page 206: Events

    20  Troubleshooting SMA America, LLC Meaning of abbreviations "F" indicates an error, "W" a warning and "E" an event. In the event of a failure, and provided it is recorded, "!" is displayed for a failure that has occurred and "C" is displayed for a failure that has stopped.

  • Page 207: Category Bat

    SMA America, LLC 20  Troubleshooting 20.6.2 Category BAT Display no. Description E202 (Partial) reset of BMS due to new battery E203 State change, battery charging algorithm for float charge E204 State change, battery charging algorithm for boost charge E205 State change, battery charging algorithm for full charge...

  • Page 208: Category Rel

    20  Troubleshooting SMA America, LLC 20.6.5 Category REL Display no. Description E601 Relay 1 off E602 Relay 1 on E603 Relay 1 on slave 1 off E604 Relay 1 on slave 1 on E605 Relay 1 on slave 2 off...

  • Page 209: Category Sys

    SMA America, LLC 20  Troubleshooting 20.6.6 Category SYS Display no. Description E705 Device start E706 Date, time changed E707 New system configured in QCG E708 Part 1 of firmware updated E709 Part 2 of firmware updated E710 Cluster firmware updated...

  • Page 210: Warnings And Error Messages

    20  Troubleshooting SMA America, LLC 20.8 Warnings and Error Messages The meanings of the warnings and errors displayed by the Sunny Island are described in the following table: 20.8.1 Category INV Display no. Level Description F109 Transformer overtemperature W110 Transformer overtemperature on slave 1...

  • Page 211: Category Bat

    SMA America, LLC 20  Troubleshooting 20.8.2 Category BAT Display no. Level Description F201 Measuring range of battery voltage exceeded W202 Measuring range of battery voltage exceeded on slave 1 W203 Measuring range of battery voltage exceeded on slave 2 W204...
  • Page 212 20  Troubleshooting SMA America, LLC Display no. Level Description W321 Grid/generator disconnection due to excessive external voltage on slave 2 W322 Grid/generator disconnection due to excessive external voltage on slave 3 W323 Grid/generator disconnection due to insufficient external frequency W324...

  • Page 213: Category Gen

    SMA America, LLC 20  Troubleshooting Display no. Level Description W341 Grid/generator disconnection due to voltage increase protection on slave 2 W342 Grid/generator disconnection due to voltage increase protection on slave 3 W343 Disconnection from the external source, because the relation of the external voltage to the battery voltage is too high.

  • Page 214: Grd Category

    20  Troubleshooting SMA America, LLC 20.8.5 GRD Category Display no. Level Description W501 Grid reverse current prevented (quick grid disconnection) W502 Grid reverse current prevented (quick grid disconnection) on slave 1 W503 Grid reverse current prevented (quick grid disconnection) on slave 2...
  • Page 215 SMA America, LLC 20  Troubleshooting Display no. Level Description W709 Watchdog meter on slave 3 elapsed (watchdog tripped several times in succession) F710 Autostart meter elapsed (several autostarts in succession) W713 Watchdog has been tripped F716 Measuring range of battery voltage exceeded...

  • Page 216: Aux Category

    20  Troubleshooting SMA America, LLC Display no. Level Description W749 Short circuit or cable break on transformer temperature sensor slave 3 W750 Short circuit or cable break on heat sink temperature sensor slave 1 W751 Short circuit or cable break on heat sink temperature sensor slave 2...
  • Page 217 SMA America, LLC 20  Troubleshooting Display no. Level Description W815 Error Q5 contactor F816 Error Q7 contactor F817 Error Q9 contactor F818 A phase is missing, Multicluster Box goes into "Failure" status W824 Error Q4 contactor W851 Pole of battery connection reversed or short circuit on...

  • Page 218: Troubleshooting

    20  Troubleshooting SMA America, LLC Display no. Level Description W884 No PV voltage or short-circuit on Sunny Island Charger 4 W885 Sensor error (or undertemperature) on Sunny Island Charger 4 W886 Overtemperature Sunny Island Charger 4 W887 No communication with Sunny Island Charger 4 for more than 24 h...
  • Page 219 SMA America, LLC 20  Troubleshooting Why is it not possible to change the parameters? • Has the installer password been entered correctly? Check whether you are in "Installer Level" (see Section 10.5 "Entering the Installer Password", page 86). If necessary, repeat the calculation and entry of the password.
  • Page 220 20  Troubleshooting SMA America, LLC What can I do when "MMC operation failed" appears on the display? • You wanted to perform an action using the SD card, but it failed (see Section 10.9 "Display of Warnings and Failures", page 92). Check the card (on your PC/laptop) and use a new SD card, if necessary.
  • Page 221 SMA America, LLC 20  Troubleshooting What happens if the card inserted is not FAT16 formatted? • The Sunny Island displays the message "Incomp". Why does the generator and/or the grid not reconnect although the (voltage or frequency) limit for disconnection has not been exceeded? •...

  • Page 222: What To Do During Emergency Charge Mode

    20  Troubleshooting SMA America, LLC 20.10 What to Do during Emergency Charge Mode The Sunny Island cannot provide voltage with full amplitude with a deeply discharged battery and can no longer synchronize with an existing grid or generator. Using the emergency charge mode (ECM), it is possible to charge the batteries in current-controlled mode.
  • Page 223 SMA America, LLC 20  Troubleshooting 5. Use the down arrow key. ☑ The display on the right appears. 6. Press <ENTER> to confirm. 7. Press <ENTER>. ☑ The emergency charge mode is started. Interrupt the emergency charge mode, e.g. in order to refill diesel: 1.

  • Page 224: Accessories

    SMA America, LLC 21 Accessories You will find the corresponding accessories and spare parts for your product in the following overview. If necessary, you can order these from SMA Solar Technology or your distributor. Designation Brief description SMA order number BatFuse-B.01 (250 A)

  • Page 225: Technical Data

    SMA America, LLC 22  Technical Data 22 Technical Data 22.1 Sunny Island 4548-US Output Data SI 4548-US-10 Nominal AC voltage (adjustable) 120 V (105 V to 132 V) AC, nom Nominal frequency 60 Hz (55 to 65 Hz) Continuous AC power at 77°F (25°C) 4,500 W AC power for 30 minutes at 77°F (25°C)
  • Page 226 22  Technical Data SMA America, LLC Efficiency/Power consumption SI 4548-US-10 Maximum efficiency Efficiency > 90% 5% P to 120% P CEC efficiency 94.5% Efficiency curve Self-consumption with no load (in standby mode) 25 W (4 W) General Data Dimensions (W x H x D) ft.

  • Page 227: Sunny Island 6048-Us

    Load limits for multifunction relays 1 and 2 AC: 6 A at at 250 V DC: see graphic Load limitation curve 22.2 Sunny Island 6048-US Output Data SI 6048-US-10 Nominal AC voltage (adjustable) 120 V (105 V to 132 V)
  • Page 228 22  Technical Data SMA America, LLC Output Data SI 6048-US-10 Continuous AC power at 104°F (40°C) 4,700 W AC power at 104°F (40°C) for 3 hours 5,000 W Continuous AC power at 122°F (50°C) 3,500 W Continuous AC power at 140°F (60°C)
  • Page 229 SMA America, LLC 22  Technical Data Efficiency/Power consumption SI 6048-US-10 Maximum efficiency Efficiency > 90% 5 to 120% P CEC efficiency 94.0% Efficiency curve Self-consumption with no load (in standby mode) 25 W (< 4 W) General Data Dimensions (W x H x D in mm) ft.
  • Page 230 22  Technical Data SMA America, LLC Interfaces SI 6048-US-10 Number of LEDs Number of buttons Display 2-line display Multifunction relay Communication RS485, galvanically insulated (optional) Memory card SD card Digital input level (Dig-In) High level from 5 V (up to 63 V),...

  • Page 231: Glossary

    SMA America, LLC 23  Glossary 23 Glossary Absorption phase Constant voltage phase: A charging phase using constant charging voltage. The charging current constantly decreases in this phase. Abbreviation for "Alternating Current" AC coupling The AC side connection between loads, generators and storage devices.

  • Page 232: Charge Mode

    23  Glossary SMA America, LLC Battery charge mode A battery inverter operating mode, in which the inverter takes energy from the AC grid to recharge the battery in a controlled fashion. In this operating mode, the off-grid inverter is responsible for correctly charging the batteries and acts like an independent battery charger.
  • Page 233 SMA America, LLC 23  Glossary Constant current phase I-Phase: The charging phase in which charging can be done using the maximum allowable charging current. C rate The nominal capacity specification is always provided with the discharge time on which the capacity is based.

  • Page 234: Float Charge

    23  Glossary SMA America, LLC Firmware Firmware is software that is stored in a chip in various electronic devices, such as Sunny Island, hard disk recorders, DVD burners and players, newer television sets, household appliances and computers — in contrast to software that is stored on a hard drive, CD-ROM or other media. These days, firmware is usually stored in Flash memory or an EEPROM chip.

  • Page 235: Inverter Mode

    SMA America, LLC 23  Glossary Inverter mode Operating mode of a battery inverter where it supplies the stand-alone grid from the battery energy. In this operating mode, the off-grid inverter is especially responsible for the control of frequency and voltage in the stand-alone grid.
  • Page 236 23  Glossary SMA America, LLC Parallel connection Parallel connection of the batteries (all positive poles connected and all negative poles connected) increases the capacity of the battery storage system while keeping the voltage constant. Example: Two 24 V/100 Ah batteries connected in parallel still have a voltage of 24 V, however, a capacity of 100 Ah + 100 Ah = 200 Ah.

  • Page 237: Series Connection

    SMA America, LLC 23  Glossary PV module Electrical connection of several PV cells encapsulated in an enclosure to protect the sensitive cells from mechanical stress and environmental influences. PV plant Describes a PV plant for generating electrical power. Describes the totality of components required for the exploitation and utilization of solar energy.
  • Page 238 23  Glossary SMA America, LLC Split-phase A split-phase system is a three-conductor single-phase distribution system, commonly used in North America, the UK, Australia and New Zealand for single-family residential and light commercial (up to 100 kVA) applications. Its primary advantage is that it saves conductor material since a single-phase system with one neutral conductor is used, while on the supply side of the distribution system only one line conductor is necessary.

  • Page 239: Contact

    SMA America, LLC 24  Contact 24 Contact If you have technical problems concerning our products, contact the SMA Service Line. We need the following data in order to provide you with the necessary assistance: • Sunny Island type • Serial number of the Sunny Island •...
  • Page 240 SMA Solar Technology www.SMA-Solar.com SMA America, LLC www.SMA-America.com...

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