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SI4248U Manual

Installation Manual

Table 1-13: Error Codes

NoMaster

Splitphase configuration no master
found (on slave device)

NoSlave

Splitphase configuration no slave
found (on master device)

RelayFail

VacInverter
VacGenreator

Automatic
acknowledge.
Restart

Relay Failure

TBatHigh

BatTemp >
TBatMax

BatTemp <
TBatMax-2°C

Battery temperature too high

TR-TempOV

T >=101

T <= 96

Transformer over temperature

TwoMaster

Receive hand-
shake from
Master device

Automatic
acknowledge.
Restart

Two master devices in splitphase con-
figuration

TwoSlave

Receive hand-
shake from
slave device

Automatic
acknowledge.
Restart

Two slave devices in splitphase config-
uration

VAC-High

VAC > VAC-
Max

VAC < VAC-
Max

High output voltage

VAC-Low

VAC< VAC-
Min

Automatic
acknowledge.
Restart

Low output voltage

VBatHigh

VBat > VBat-
Max

High battery voltage

VBatLow

VBat < VBat-
Min
(for 30 sec-
onds)

VBat > VBat-
Min

Low battery voltage

Watchdog

Automatic
reset

Watchdog reset

Name

Cause

Release

Description

Содержание Sunny Island 4248U

Страница 1: ...SI4248U Installation Guide i SOLARTECHNOLOGY Battery Inverter Charger for Stand Alone and Back up Applications Sunny Island 4248U Installation Operating Instructions...

Страница 2: ...SI4248U Installation Guide ii...

Страница 3: ...implied warranties may not apply in all cases under some statutes and thus the above exclusion may not apply Specifications are subject to change without notice Every attempt has been made to make th...

Страница 4: ...he Sunny Island 4248U Failure to read and follow instructions marked with this symbol could result in serious injury and or damage to the equipment This symbol appears beside instructions and warnings...

Страница 5: ...d service center for repairs and maintenance WARNING Other than the cooling fans the Sunny Island 4248U contains no user serviceable parts Always contact an SMA authorized Service Center for repairs a...

Страница 6: ...SI4248U Installation Guide vi...

Страница 7: ...0 Diagnose 55 Operation 56 Troubleshooting 58 Battery Management 60 Charging Operations used by the Sunny Island 60 Generator Load Shedding Control and Battery State of Charge 62 How to set up State o...

Страница 8: ...SI4248U Installation 2 Operation 84 Start Up 85 Maintenance 86 Battery Management 88 Charging Operations used by the Sunny Island 88...

Страница 9: ...erter manufacturing Some of the features included are Optimized for high ambient temperature operation Very high efficiency Integrated DC breaker Near silent operation Non volatile memory Compatible w...

Страница 10: ...C AC Nominal Output Voltage 120 V AC AC Maximum Input Voltage 150 V AC AC Minimum Input Voltage 80 V AC THD of Output Voltage 3 AC Nominal Output Frequency 60 Hz AC Maximum Input Frequency 66 Hz AC Mi...

Страница 11: ...Serial Port optional Generator Request N O dry contact Generator Ready isolated input Load Shed N C dry contact Max Voltage G_Req Load_S see Figure 1 14 Max Current G_Req Load_S see Figure 1 14 4000 W...

Страница 12: ...ntation provided with other equipment in your system before beginning installation Battery Safety Special care should be taken when working around batteries Battery banks have the potential to deliver...

Страница 13: ...according to these instructions Even so there is no way to guarantee that radio interference will not be generated in a given installation If the inverter is found to be causing harmful radio or tele...

Страница 14: ...and inverter for any damage Verify that the mounting bracket manual and warranty card are all present Fill out the warranty card with the model number and serial number of the unit Keep all receipts t...

Страница 15: ...DC breaker on the front of the inverter step 1 before lifting the cover off step 2 Failure to do so can result in the DC breaker being accidentally switched on Figure 1 5Proper Cover Removal The cover...

Страница 16: ...ts may be violated if the inverter is mounted directly over the battery enclosure WARNING If the inverter is mounted in a separate room from the batteries there must be an additional DC disconnect mou...

Страница 17: ...Strut or a sheet of plywood that is secured to the building support structure Clearances Air is drawn into the bottom of the inverter and exits through the sides near the top of the enclosure To maint...

Страница 18: ...al 10 User Interface Overview The following illustration shows the names and locations of the components that make up the Sunny Island 4248U s user interface 4 2 3 ISCONNECT INE ISPLAY RED GREEN NDICA...

Страница 19: ...to complete installation Hardware The type of hardware required to mount the inverter will vary depending upon the mounting method used See the Mounting Method section for details on recommended mount...

Страница 20: ...et in position and using the bracket as a template making sure the bracket is level mark the mounting holes for the bracket on the wall Drill 3 16 pilot holes in the wall and stud to a depth of 1 1 2...

Страница 21: ...tion Manual 13 Figure 1 9 Mounting Bracket to Single Stud RYWALL RYWALL OUNT CENTERED ON STUD USING THREE LAG BOLTS WITH WASHERS THAT ARE LONG ENOUGH TO PENETRATE THE STUD TO A DEPTH OF AT LEAST 7ALL...

Страница 22: ...through the wall braces and the studs Mount the wall braces to the wall using 16D nails or 3 1 2 lag bolts Repeat the process for the other wall brace Place the mounting bracket in position and using...

Страница 23: ...SI4248U Manual Installation Manual 15 Figure 1 10 Mounting With 2x4 Braces RYWALL RYWALL X 3UPPORTS 3PACED APART SPANNING WALL STUDS 7ALL STUDS SPACED ON CENTER...

Страница 24: ...ood and the studs Mount the sheet of plywood to the wall using 10 wood screws that penetrate a minimum of 1 1 2 into the wall studs Place the mounting bracket in position and using the bracket as a te...

Страница 25: ...SI4248U Manual Installation Manual 17 Figure 1 11 Mounting With Sheet of Plywood RYWALL RYWALL INCH PLYWOOD SPANNING WALL STUDS 7ALL STUDS SPACED ON CENTER...

Страница 26: ...tion as a battery charger for charging the battery bank This mode operates by connecting an AC power source to the inverter s AC power input The AC power source could be a gas powered generator or eve...

Страница 27: ...refer to the AC wiring section of this manual CAUTION Any AC power sources coupled to the AC output side of the inverter must meet UL 1741 requirements In addition the GridConnected parameter in Gene...

Страница 28: ...eedPV automatically activates the communication bus NOTE To further protect against system shut down due to over voltage the Sunny Boy parameter in the Sunny Island should still be set to YES so that...

Страница 29: ...or and the inverter may require larger conductors to compensate for excessive voltage drops With a 70 Amp overcurrent device in the generator to inverter circuit an 8 AWG equipment grounding conductor...

Страница 30: ...through current is to be used the equipment grounding conductor must be increased to 8 AWG see NEC 250 122 If the circuit conductors are oversized to compensate for voltage drop the equipment groundi...

Страница 31: ...total ampacity of 240 A at 30 C and four 1 0 AWG conductors will fit in1 1 2 trade size conduit TSC Do not use USE XHHW or RHW insulated cables as they will exceed conduit fill ratings For higher amb...

Страница 32: ...to ground The Sunny Island 4248U is designed to work with a negatively grounded DC electrical system The inverter does not make the negative conductor to ground bond and this connection must be made e...

Страница 33: ...operate two wire gen start circuits with the G REQ relay alone When the generator is needed this contact is closed Two wire start generators will start at this time and the inverter will use its powe...

Страница 34: ...hen used with the GenMan option GenMan is an optional unit available from SMA America When the generator has been started the GenMan will confirm operation by sending a signal to these terminals In th...

Страница 35: ...r is connected The Sunny Island 4248U is equipped with fans to help maintain efficiency during high loads or high ambient temperatures Power for the fans is provided here Also the external battery tem...

Страница 36: ...for RS485 or RS232 formats Controller Area Network CAN The CAN connections are used when two Sunny Island 4248U s are used in split phase configuration Please see the split phase section of this manua...

Страница 37: ...an appropriate hole plug to meet NEC and listing requirements before the inverter is turned on There is one 1 1 2 trade size conduit TSC hole for the DC conductors from the battery one 3 4 TSC hole fo...

Страница 38: ...equipment grounding conductors AC and DC terminate at the terminals marked equipment ground If there are more than two equipment grounding conductors the additional conductor should be spliced togethe...

Страница 39: ...charge the batteries directly not via a Sunny Boy inverter will usually have an external NEC 690 5 Ground Fault Protection Device GFPD In this case the DC grounding electrode conductor must be connec...

Страница 40: ...any part of the batteries to mount the sensor unless instructed to do so by the battery manufacturer Although the BTS terminals are numbered and the wires are color coded there is no polarity to the...

Страница 41: ...is set to slave mode it does not require the battery temperature sensor and can be removed The slave unit sensor may be installed temporarily it does not need to be run through conduit Figure 1 16 Aux...

Страница 42: ...ith a generator connect the incoming AC wires from the generator in the same order as above If your system will use the utility grid be sure the AC source is safely disconnected and then connect the w...

Страница 43: ...ng the DC input terminals may contact the chassis No damage will result if the above warning is heeded and the inverter has not been powered on for at least five minutes NOTE The DC cables that supply...

Страница 44: ...nly by the master unit To set the inverters up for split phase mode they must first be completely wired and ready to operate Both inverters need to have a battery temperature sensor connected to them...

Страница 45: ...e same parameter for Slave Power down the slave inverter You may now disconnect the battery temperature sensor cable from the slave inverter Now when the inverters are restarted they will operate in s...

Страница 46: ...re for you to enter that information before beginning Battery Type _____________ Valve Regulated Lead Acid VRLA or Flooded Lead Acid FLA Battery Capacity ________ Amp Hours 100 to 6000 The Sunny Islan...

Страница 47: ...e outlines the key functions Changing Parameters When a parameter is reached via the navigation keys the current value of that parameter will be displayed Next to that value will be a return character...

Страница 48: ...the Sunny Island 4248U one red and one green The following table describes their functionality Operating Condition Red LED Green LED INIT Initialization ON ON Stop ON OFF Operating OFF ON Derating BLI...

Страница 49: ...time it will display SMA Once the Initialization process is complete it will ask that you press Enter to begin the setup process The first parameter to set is the battery type Begin by pressing Enter...

Страница 50: ...connected to it There are three possible settings Manual Direct and GenMan Manual Default When Manual is selected the Sunny Island assumes that it has no control over the generator whatsoever This se...

Страница 51: ...the generator manually or return it to automatic control via the Sunny Island It has five possible settings Start Stop Auto Run1h and Release Start Stop These settings are used as manual overrides to...

Страница 52: ...input of the Sunny Island NOTE When setting GridConnected to GridCharge make sure that GenControl is set to Manual and that GenOperation is set to Auto GridFeedPV Use the GridFeedPV setting when grid...

Страница 53: ...sland 4248U To prepare the Sunny Island 4248U for use with Sunny Boy inverters set the SunnyBoys parameter to YES On the Sunny Boy s set the Default parameter to off grid Back Up Systems In both Back...

Страница 54: ...than 30 seconds the Sunny Island 4248U will switch to island mode immediately GridCharge When the GridConnected parameter is set to GridCharge the Sunny Island 4248U will not allow power to be passed...

Страница 55: ...1 GenControl 24 2 AmpacGenMax 24 3 GenOperation 31 1 DeviceConfig 31 2 FWVERS 31 3 SerNum 31 4 RunTime 32 1 Last 32 2 Hist 11 Inverter Meters 12 Battery Meters 13 Generator Meters 21 Password Settings...

Страница 56: ...will behave differently while the inverter performs slave only functions NOTE It is recommended that you record the value of any parameter change in the margin of these pages for future reference Ins...

Страница 57: ...monitor the charge mode of the inverter will be shown on Slaves in Split Phase Mode only Auto Inverter maintains charge automatically For details about the special charge modes see Battery Management...

Страница 58: ...wer at the inverter generator input Name Range Unit Default Description VacNominal 105 130 VAC 120 The VacNominal parameter sets the nominal output voltage of the inverter FacNominal 55 65 Hz 60 The F...

Страница 59: ...time in which the inverter will charge the batteries in boost charge mode VchargeBoost 44 62 4 VDC 60 FLA 56 8 VRLA The VchargeBoost parameter adjusts the high voltage setpoint used for charging in th...

Страница 60: ...ion GenControl Manual Direct GenMan Manual The GenControl parameter selects the type of gen erator control to be used with your system Manual Manual start type or no generator con nected Direct Two wi...

Страница 61: ...vious mode If Run1h was selected from Start mode the Sunny Island will switch back to Start after one hour time Release Aborts the lock time 20 min for the gen erator after a ReversePower failure has...

Страница 62: ...None No grid operation Generator limits apply VacGenMin VacGenMax FacGenMin FacGenMax DelayVGenLow PGenRevers GridCharge Charge only from grid UL limits apply voltage range 106 V 131 V frequency range...

Страница 63: ...the inverter SerNum N A N A The SerNum menu displays the serial number of the inverter RunTime N A Hours N A The RunTime menu displays the total time the inverter has been operating Name Range Unit D...

Страница 64: ...s OFF the inverter will always have to be started manually BaudRate 1200 2400 4800 9600 19200 1200 The BaudRate parameter selects the baud rate that the Sunny Island 4248U will use to communicate with...

Страница 65: ...nfirm operation of the gen erator start circuit Select Off when no generator is present or to manu ally switch the generator relay off Select On to manually switch the generator relay to the on positi...

Страница 66: ...able broken CTR Short T 40 C T 40 C Transformer temp sensor shorted FailSet TrfDerateTemp TrfMax Temp or HSDerate Temp HSMaxTemp Set parameter correctly Derating settings incorrect HS TempOV T 85 C T...

Страница 67: ...er over temperature TwoMaster Receive hand shake from Master device Automatic acknowledge Restart Two master devices in splitphase con figuration TwoSlave Receive hand shake from slave device Automati...

Страница 68: ...e at low generator load condition to state of charge of approximately 92 97 Equalizing Charge equalizing all cells with long generator run time at low load condition to state of charge of approximatel...

Страница 69: ...er completion of the absorption phase the generator is switched off if a generator is used The charge operation is then finished and the charge voltage set point is set to Float The Float State only e...

Страница 70: ...en these states are controlled by the State of Charge calculated from the battery voltage and a timer see State transition for generator start and load shedding on page 63 The mentioned time of 2 minu...

Страница 71: ...r will shutdown after 5 minutes Independent from the Generator and Load Shedding control the battery voltage monitoring stays active and will shut down Sunny Island 4248U if the battery voltage falls...

Страница 72: ...at a SOC of 40 or when the battery has a specific gravity of 1 24 kg l then The SocLim1 should be set to 25 To determine this value begin at 40 SOC go up to the blue curve which represents 1 24 kg l g...

Страница 73: ...The result of this control loop determines the current to be drawn from the generator This current value is limited by the maximum generator current as set by the AmpacGenMax parameter and the maximum...

Страница 74: ...Battery Management SI4248U Manual 66...

Страница 75: ...ine wave AC power but is equipped with the latest features and technology to ensure that you get the most from your battery based system Some of the features included are Optimized for high ambient te...

Страница 76: ...ion options are available to connect multiple Sunny Island 4248U s together or combine other SMA products on the same communication bus For customers desiring remote access to the Sunny Island 4248U v...

Страница 77: ...ation The power generated by the external source can be used to power AC loads via the Sunny Island 4248U while the batteries are being charged at the same time The Sunny Island 4248U watches the batt...

Страница 78: ...of its operation For example auto start generators typically have much larger engine oil and gas capacities They have sophisticated starting procedures such as crank times retry counts and exercise ro...

Страница 79: ...ts of current when shorted Wires can be melted tools can be welded fires can be started Even small battery banks deserve your utmost respect In addition to the safety instructions in the front section...

Страница 80: ...ty DC Disconnect Switches inverter on and off In order to definitely switch off the inverter also disconnect all connections on the AC side 2 Line Display Displays status parameters historical data an...

Страница 81: ...nce the desired value is reached press ENTER to store the new value How Information is Displayed Information from the Sunny Island 4248U is displayed on a 2 line LCD display As you move up and down th...

Страница 82: ...across the top of the display This is a relative representation of the power of the inverter so blocks that reach the halfway point on the scale represent the inverter running at half of its capacity...

Страница 83: ...reen to notify the user that an error has occurred This E will remain visible until the fault is viewed by the user in the error menu After the error has been viewed the E will be cleared from the hom...

Страница 84: ...tatus LEDs work together to provide you with a variety of status information Refer to the following table Operating Condition Red LED Green LED INIT Initialization ON ON Standby OFF OFF Operating OFF...

Страница 85: ...p 12 4 BatState 12 5 BatChargeMode 12 6 TabsorbLeft 13 1 VacGenerator 13 2 AmpacGenerator 13 3 FacGenerator 13 4 PacGenerator 21 1 Level 00 22 1 VacNominal 22 2 FacNominal 23 1 VdcBatNominal 23 2 BatT...

Страница 86: ...ions for the two inverters will appear only on the master display All information that appears on the slave display should be disregarded as it will behave differently while the inverter performs slav...

Страница 87: ...ttery Management on page 60 will be shown on Slaves in Split Phase Mode only TabsorbLeft 0 Max min N A Every charge mode has a dedicated absorption time that might have been adjusted by your system in...

Страница 88: ...User Menu Guide SI4248U Manual 80 PacGenerator 20 20 kWAC N A The PacGenerator menu displays the AC power at the inverter generator input Name Range Unit Default Description...

Страница 89: ...nverter BatType VRLA FLA VRLA The BatType parameter selects the type of battery used in the system VRLA Valve Regulated Lead Acid FLA Flooded Lead Acid Once the system is configured this parameter can...

Страница 90: ...lease Auto The GenOperation parameter forces the generator to react immediately Auto Normal control by Sunny Island is active the display might show G or Start Generator will be started by the Sunny I...

Страница 91: ...inverter SerNum N A N A The SerNum menu displays the serial number of the inverter RunTime N A Hours N A The RunTime menu displays the total time the inverter has been operating Name Range Unit Defau...

Страница 92: ...into that mode For example if you want to perform an equalize charge on your flooded batteries you would select Equalize in this menu to put the inverter into equalize mode For details about the spec...

Страница 93: ...nning operation Once the INIT phase is complete the inverter will display Press Enter Pressing the ENTER key will start the inverter If the AUTOSTART parameter is set to ON once the DC disconnect is s...

Страница 94: ...ns should only be performed by qualified personnel Enclosure Check the enclosure of the Sunny Island 4248U for mechanical integrity Should there be any damages reducing the Sunny Island 4248U s operat...

Страница 95: ...ple Errors or Locked Multiple Errors or Locked Acknowledge Timeout Retry Timeout Incorrect External Voltage Relay Off Standards Reversed Off Incorrect External Voltage No Box Sync Signal Relay Off Spe...

Страница 96: ...ition to state of charge of approximately 92 97 Equalizing Charge equalizing all cells with long generator run time at low load condition to state of charge of approximately 95 100 Figure 2 8 State Tr...

Страница 97: ...meter Battery TabsorbLeft After completion of the absorption phase the generator is switched off in case of operation together with a generator The charge operation is finished and charge voltage setp...

Страница 98: ...Battery Management SI4248U Manual 90...

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