SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

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Connecting External Sources SMA Solar Technology AG 14.1.5 Automatic Generator Operation In automatic operating mode ("235.01 GnAutoEna" parameter), the Sunny Island automatically defines the settings (depending on battery state of charge or load) as to when the generator starts and how long it runs. The automatic operating mode is activated using GnAutoEna = On (default). If GnAutoEna = Off, the automatic operating mode is deactivated. In addition, the user can also manually start and stop the generator, if required. Charge State Dependent Start NOTICE! The Sunny Island changes to the operating mode "Stop/Lock" when stopped manually during automatic operation. • Manual inputs on the Sunny Island have a higher priority than automatic operation. • If the Sunny Island is manually stopped while the automatic operating mode is activated, it switches to stop/lock operating mode. • If Generator Automatic Start is activated and the conditions for automatic operation are met, the Sunny Island changes back into the Start operating mode after lock time (or manual acknowledgment with the "540.02 GnAck" parameter). The time periods t1 and t2 are defined using the "235.07 GnTm1Str" and "235.08 GnTm2Str" parameters. The start time for t1 (and thus the end of t2) is defined using GnTm1Str, and the start time for t2 (end of t1) is defined using GnTm2Str. GnTm1Str = GnTm2Str If GnTm1Str = GnTm2Str, only t1 is activated! 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. The GnSocTm2Str and GnSocTm2Stp parameters are similarly defined during the time t2. The following figure shows an example of the settings if operation of the generator 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 % during nighttime (from 10:00 p.m. to 6:00 a.m.). By contrast, the state of charge of the battery is allowed to go down to 30 % before the load-shedding contactor is activated. 114 SI5048-TB-TEN110340 Technical Description
SMA Solar Technology AG Connecting External Sources Reaching the float charging process If the float charging process (see section 13.4 ”Charge Control” (page 99)) is activated before the cutoff limit (GnSocTm1Stp or GnSocTm2Stp) is reached, the generator request is disabled again. If a full or equalization charge is active, the generator is only stopped after this charge is completed and not when "235.04 GnSocTm1Stp" or "235.06 GnSocTm2Stp" is reached. Technical Description SI5048-TB-TEN110340 115
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Off-Grid Inverter SUNNY ISLAND 5048
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Table of Contents SMA Solar Technol
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Notes on this Manual SMA Solar Tech
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The Sunny Island 5048 SMA Solar Tec
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Safety Instructions SMA Solar Techn
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Mounting SMA Solar Technology AG 4
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Mounting SMA Solar Technology AG 4.
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Opening and Closing SMA Solar Techn
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Electrical Connection SMA Solar Tec
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Control Elements SMA Solar Technolo
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Initial Start-up SMA Solar Technolo
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Switching On and Off SMA Solar Tech
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Page 84 and 85: Archiving Data on a SD Card SMA Sol
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Parameter lists SMA Solar Technolog
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Troubleshooting SMA Solar Technolog
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Accessories SMA Solar Technology AG
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Technical Data SMA Solar Technology
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Contact SMA Solar Technology AG 23
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SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.

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