SUNNY BACKUP-SET S - SMA Solar Technology AG
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1. 3 Carry out the desired setting setting Explanation Enable Activates the increased self consumption function Deactivates the increased self consumption function 4 Save setting Activating or deactivating the increased self consumption function via Sunny WebBox e To activate the increased self consumption function set the SlfCsmpIncEna parameter to Enable see the Sunny WebBox user manual e To deactivate the increased self consumption function set the SlfCsmpIncEna parameter to Disable see the Sunny WebBox user manual Technical Description SBU2200_Eigy TB en 12 7 6 Configuring the Sunny Backup 2200 for Increased Self Consumption SMA Solar Technology AG 6 2 Setting the Low Charge Limit of the Battery When using the increased self consumption function the low charge limit defines the SOC limit to which the Sunny Backup may discharge the battery The lower the low charge limit is set the greater the possible increase in self consumption and the shorter the battery s service life When the state of charge of the battery falls below the lower limit for increased self consumption the battery will no longer supply any loads providing that an electricity grid is available SMA Solar Technology AG recommends leaving the setting of the low charge limit at 50 e To set the low charge limit of the battery enter a value for the SIfCsmpSOCMin parameter on the Sunny Backup 2200 The low charge limit for increased self cons2. 4 Alternatively you can use just one protective conductor with cross section 2 10 mm PV power Sunny Bo Automatic generation meter Switch Box lt Main distribution unit ey er Electricity purchased AL PV generator DC _ from the grid Sunny Backup Grid feed in C_ Public grid L aln J CE N sub panel Distribution Equipotential bar mi Foundation grounding Figure 4 Sunny Backup system according to the internal consumption of solar power principle redundant earthing is realised by additional protective conductor from the main distribution 6 SBU2200_Eigv TB en 12 Technical Description SMA Solar Technology AG 6 Configuring the Sunny Backup 2200 for Increased Self Consumption 6 Configuring the Sunny Backup 2200 for Increased Self Consumption 6 1 Activating or Deactivating the Increased Self consumption Function There are two ways to activate or deactivate the increased self consumption function e Activate or deactivate the increased self consumption function in the Sunny Backup 2200 e Activate or deactivate the increased self consumption function via Sunny WebBox Activating or deactivating the increased self consumption function in the Sunny Backup 2200 Enter the installer password see technical description of the Sunny Backup system 2 Select the parameter 200 Settings gt 230 Set Backup gt 236 SlfCsmplnc gt 01 SlfCsmpIncEna
3. Sunny Remote Sua LNPE AC2 ACI LNPE y Backup Display Box Com Com Out In Sync Sync Out In BatFuse A 01 Battery Figure 1 Arrangement of the energy meters and PV inverters in a Sunny Backup system with a single phase PV inverter Technical Description SBU2200_Eigy TB en 12 3 3 Arrangement of the Energy Meters and PV Inverters in a Sunny Backup System SMA Solar Technology AG Sunny Home PV array Manager aS PV power ee ee ee a Loads 5 ST Electricity Feed in and f grid consumption meter g Sunny Remote Control L NPE AC2 Display Com Out Sync Em Out BatFuse A 01 Battery Figure 2 Arrangement of the energy meters and PV inverters in a Sunny Backup system with a three phase PV inverter 4 SBU2200_Eigv TB en 12 Technical Description SMA Solar Technology AG A Installing the Neutral Conductor 4 Installing the Neutral Conductor When installing the Sunny Backup system you need to make sure that the PV plant s neutral conductor is always led through the Automatic Switch Box at terminal X2 PV System This will prevent the Sunny Backup 2200 from switching off due to asymmetric currents within the Automatic Switch Box 5 Redundant Earthing The Sunny Backup 2200 requires redundant double earthing This requirement is met if the plant is installed according to the grid feed in of
4. solar power principle If installation is being carried out according to the internal consumption of solar power principle you have two options for providing redundant earthing Option 1 Redundant earthing is provided through type of cabling Under option 1 the Sunny Backup 2200 is earthed once through the Automatic Switch Box and once directly through a grounding cable see Figure 3 Hence redundant earthing is given PV power Sunny Boy F t Automatic generation meter Pil Box Loads Distribution sub panel PV generator DC _ Main distribution unit Electricity purchased from the grid gt S Back Grid feed in S CAR Public grid LI e E I Equipotential bar oos Foundation grounding Figure 3 Sunny Backup system according to the internal consumption of solar power principle redundant earthing is provided Technical Description SBU2200_Eigv TB en 12 5 5 Redundant Earthing SMA Solar Technology AG Option 2 Redundant earthing is provided through an additional protective conductor from the main distribution Under option 2 the connection between the electricity grid the Automatic Switch Box and the Sunny Backup 2200 is realised in an external enclosure This option does not provide redundant earthing If you use this option you need to earth the Sunny Backup 2200 by means of a second protective conductor from the main distribution see Figure
5. the reading head The measured values of the feed in and consumption meter are incomplete or the energy meter is not compatible Corrective measures e Install compatible energy meter see installation manual of the Meter Box for Sunny Backup e Check installation of the energy meter and the reading head Terminals of the reading heads in the Meter Box or feedthrough adapter have been swapped or the terminals of the extension cords have been swapped Corrective measures Stop the Sunny Backup see technical description of the Sunny Backup system Make sure that the cable route between the reading head of the PV production meter and the PV Meter jack is intact see installation manual of the Meter Box for Sunny Backup Make sure that the cable route between the reading head of the PV production meter and the Grid Meter jack is intact see installation manual of the Meter Box for Sunny Backup Start the Sunny Backup 2200 see technical description of the Sunny Backup system
6. SUNNY BACKUP SET S Integration of a backup system into a PV plant designed according to the Internal consumption of solar power principle Section 33 Para 2 EEG 2009 This document is valid for a Sunny Backup Set S with an SBU 2200 from firmware version 1 3 and with an Automatic Switch Box S AS Box S 1 This documents covers the following topics e Increased self consumption with a Sunny Backup system e Integration of the loads into increased self consumption and backup function e Arrangement of the energy meters and PV inverters in a Sunny Backup system e Information on the installation of a neutral conductor e Redundant earthing of the Sunny Backup 2200 e Configuring the Sunny Backup 2200 for increased self consumption e Parameters for increased self consumption in the Sunny Backup 2200 1 Increased Self Consumption You can increase self consumption by buffering the PV energy with a Sunny Backup system In a Sunny Backup system with increased self consumption the Sunny Backup retrieves the data from the connected energy meters via the Sunny Home Manager and uses it to determine the PV production feed in and purchased electricity Alternatively you can use a Meter Box for Sunny Backup for retrieving energy meter data SBU2200_Eigy TB en 12 DBEN SBU22_EIGV Version 1 2 Cn 2 Integration of the Loads into Increased Self Consumption and Backup Function SMA Solar Technology AG 2 Integration of the Loads into Incr
7. alls below the low charge limit with increased self consumption 7 3 Event Messages Cause and corrective measures eHZ1 ComFail The Meter Box signals faulty communication with the PV production meter Corrective measures e Check LED indicators on the Meter Box see installation manual of the Meter Box for Sunny Backup eHZ2ComFail The Meter Box signals faulty communication with the feed in and consumption meter Corrective measures e Check LED indicators on the Meter Box see installation manual of the Meter Box for Sunny Backup MitrBoxFail The communication between Sunny Backup and the Meter Box has been interrupted for at least 5 seconds Corrective measures e Check LED indicators on the Meter Box see installation manual of the Meter Box for Sunny Backup MtrBoxTimeout The Meter Box signals an internal timeout Corrective measures e If this message occurs repeatedly contact the SMA Service Line Technical Description SBU2200_Eigv TB en 12 11 7 Parameters for Increased Self Consumption on the Sunny Backup 2200 SMA Solar Technology AG Message Cause and corrective measures eHz1ProtFail eHz2ProtFail 12 SBU2200_Eigy TB en 12 Technical Description The measured values of the PV production meter are incomplete or the energy meter is not compatible Corrective measures e Install compatible energy meter see installation manual of the Meter Box for Sunny Backup e Check installation of the energy meter and
8. eased Self Consumption and Backup Function When installing the Sunny Backup system you can connect single phase loads to the energy supply in two ways e between the combined feed in and consumption meter and the Automatic Switch Box or e at the X4 Backup Loads terminal of the Automatic Switch Box The number of line conductors and type of load connection influence the way in which the loads are integrated into the increased self consumption and backup functions as shown in the table below Type of load connection Integration into Supply of loads when increased the electricity grid fails self consumption Single phase load at terminal Yes X4 Backup Loads of the AS Box S 1 Single phase loads between feed in No No and consumption meter and AS Box S 1 via L1 Single phase loads between feed in and No No consumption meter and AS Box S 1 via L2 L3 Three phase loads between feed in and No No consumption meter and PV production meter 2 SBU2200_Eigv TB en 12 Technical Description SMA Solar Technology AG 3 Arrangement of the Energy Meters and PV Inverters in a Sunny Backup System 3 Arrangement of the Energy Meters and PV Inverters in a Sunny Backup System Meterbox for PV arra Sunny Backup PV power generation meter XA Loads AS Box S 1 To T Feed in and Electricity consumption grid meter bs a ee ee I A lt vs M gt am E w 7 SynclN SyncOUT k Backup X3 To o
9. tery cycles 3 Subtract the value of the BatCpyThrpCnt parameter from the maximum possible number of charge cycles given in the battery manufacturer s specification This gives you the number of remaining battery charge cycles Note down the number of remaining battery charge cycles and the date 5 If the number of remaining charge cycles decreases too strongly during the service life of the Sunny Backup system increase the low charge limit of the battery This will preserve the battery but at the same time reduce the potential self consumption increase 8 SBU2200_Eigv TB en 12 Technical Description SMA Solar Technology AG 7 Parameters for Increased Self Consumption on the Sunny Backup 2200 7 Parameters for Increased Self Consumption on the Sunny Backup 2200 7 1 Display Values 7 1 1 Meter Battery 120 Number Name inthe Name in the Description Sunny Backup Sunny WebBox 7 1 2 Meter SlfCsmp 160 161 Meter Power il Sunny Backup Sunny WebBox Total power oa in kW St ae ae ee O e sCanpnctor nauond sesamin 06 GdFeedPwrAt Pacfeedin Power fed into the electricity grid in KW 162 Meter Energy i ao Sunny Backup Sunny WebBox 0 T a Tool nce okcnanpion nA 04 sifCsmpinctdy sifCsmpincTdy Today s increase in selfconsumption in KWh _ SlfCsmpEgy SlfCsmpEgy Total self consumption in kWh 06 GdCsmpEgyMtr kWhFeed In Meter reading purchased electricity in kWh GdCsmpEgyTdy GdCsmpEgyTd
10. umption must be higher than the low charge limit for starting the battery care mode 6 3 Activating or Deactivating the Overnight Shutdown of the Sunny Backup 2200 The overnight shutdown of the Sunny Backup 2200 is used to minimise power consumption and preserve the battery During overnight shutdown the PV inverters are switched off and the connected loads are directly powered by the electricity grid Once overnight shutdown is over the Sunny Backup 2200 switches back on see technical description of the Sunny Backup The overnight shutdown can only be active outside of the time frame specified by the Sunny Backup 2200 for the PV inverters to feed into the grid To activate overnight shutdown the battery s state of charge must also be lower than the low charge limit for increased self consumption e In order to deactivate overnight shutdown of the Sunny Backup 2200 when the state of charge of the battery is too low set the SlfCsmpStbyMod parameter to Off e In order to activate overnight shutdown of the Sunny Backup 2200 when the state of charge of the battery is too low set the SIfCsmpStbyMod parameter to On 6 4 Checking the Number of Remaining Charge Cycles Regularly check the number of remaining charge cycles 1 Refer to the battery manufacturer s specifications for the maximum possible number of charge cycles 2 Read off the BatCpyThrpCnt parameter on the Sunny Backup 2200 at regular intervals to determine the number of bat
11. y Today s purchased electricity in kWh GdFeedEgyMtr kWhConsumption Meter reading grid feed in in kWh 09 GdFeedEgyTdy GdFeedEgyTdy Today s grid feed in in kWh Technical Description SBU2200_Eigy TB en 12 9 7 Parameters for Increased Self Consumption on the Sunny Backup 2200 SMA Solar Technology AG 163 Meter State Name in Description Value Explanation Sunny Backup 2200 Sunny WebBox PyGdConStt Grid into which the PV Electricity grid Backup Stand alone grid 02 LodGdConStt Grid supplying the Electricity grid loads Stand alone grid dqd GridBypass Electricity gri BatMntStt State of full charge or On No full charge or equalisation charge equalisation charge in preparation or active Wait Full charge or equalisation charge in preparation Off Full charge or equalisation charge active The Sunny Backup 2200 is connected Formed by the Sunny Backup The Sunny Backup 2200 is not connected 10 SBU2200_Eigv TB en 12 Technical Description SMA Solar Technology AG 7 Parameters for Increased Self Consumption on the Sunny Backup 2200 7 2 Adjustable System Parameters 7 2 1 236 SlfCsmplnc Name in Sunny Description Value Explanation Backup 2200 Sunny WebBox 01 SlfCsmpIncEna Selfconsumption Disable SlfCsmpSOCMin Low charge limit with 20 50 increased self consumption em SlfCsmpStbyMod Disconnection of the Deactivated Sunny Backup 2200 when 2 deity aia battery SOC f
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