SI4548-US-10 Manual
Table Of Contents
- 1 Information on this Manual
- 2 Sunny Island 4548-US/6048-US
- 3 Safety Precautions
- 4 Assembly
- 5 Opening and Closing
- 6 Electrical Connection
- 7 Control Elements
- 8 Initial Start-Up
- 9 Switching On and Off
- 10 Operation
- 11 Archiving Data on an SD Card
- 12 Additional Functions
- 12.1 Load Shedding
- 12.2 Sleep Mode
- 12.3 Time-Controlled Operation
- 12.4 Overload and Short-Circuit Behavior
- 12.5 Mixed Operation with Sunny Island inverters of Different Power
- 12.6 Device Faults and Autostart
- 12.7 Automatic Frequency Synchronization
- 12.8 Time-Controlled Standby
- 12.9 Behavior in the Event of a Failure in a Three-Phase System
- 13 Battery Management
- 14 Connecting External Sources
- 14.1 Generator
- 14.1.1 Parallel Connection
- 14.1.2 Generator Start Options
- 14.1.3 Generator Operation
- 14.1.4 Manual Generator Operation
- 14.1.5 Automatic Generator Operation
- 14.1.6 Limits and Power Control
- 14.1.7 Run Times
- 14.1.8 Operation Together with PV Inverters and Wind Power Inverters
- 14.1.9 Stopping the Generator
- 14.1.10 Stopping the Sunny Island
- 14.1.11 Disturbances
- 14.2 Grid
- 14.2.1 Limits of the Voltage Range and Frequency Range
- 14.2.2 Starting the Sunny Island
- 14.2.3 Operation in the Event of Grid Failure in a Grid-Tie Backup Configuration
- 14.2.4 Backup Operation and Anti-Islanding
- 14.2.5 Grid Reconnection
- 14.2.6 Grid Operation
- 14.2.7 Grid Failure
- 14.2.8 Disturbances
- 14.2.9 Limits and Power Control
- 14.2.10 Operation Together with PV Inverters and Wind Power Inverters
- 14.3 Generator and Grid
- 14.1 Generator
- 15 Relays
- 16 Multicluster Operation
- 16.1 Communication between the Sunny Island inverters
- 16.2 Initial Start-Up of the Multicluster System
- 16.3 Switching a Multicluster System On and Off
- 16.4 Generator Operation
- 16.5 Behavior with Different States of Charge
- 16.6 Testing the Multicluster Communication
- 16.7 Automatic Frequency Synchronization
- 16.8 Updating the Firmware
- 16.9 Error Handling in the Multicluster System
- 16.10 Grid Operation
- 16.11 Generator Emergency Operation
- 17 PV Inverters
- 18 Maintenance and Care
- 19 Parameter Lists
- 20 Troubleshooting
- 21 Accessories
- 22 Technical Data
- 23 Glossary
- 24 Contact
14 Connecting External Sources SMA America, LLC
132 SI4548_6048-US-TB_en-13 Technical description
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" and the "560.01 GdManStr" parameter to "Auto."
The Sunny Island connects to the grid, when the state of charge of its batteries lies within the limits
determined by the following parameters:
• "233.01 GdSocTm1Str" to "233.02 GdSocTm1Stp"
• "233.03 GdSocTm2Str" to "233.04 GdSocTm2Stp"
The Sunny Island differentiates between two time periods, for which you can set different limiting
values to connect and disconnect the grid using the parameters mentioned above: These two time
periods are subdivided via the following parameters:
• "233.05 GdTm1Str"
• "233.06 GdTm2Str"
The Sunny Island charges its batteries using the battery charging process which is set via the
parameter "233.09 GdStrChrgMod".
Grid as generator: Connecting the grid as soon as the loads request high power
from the Sunny Island
You can configure the Sunny Island in such a way that it automatically connects to the grid, as soon
as the connected loads request high power from the Sunny Island. To activate this function, set the
"232.42 GdPwrEna" parameter to "Enable". The Sunny Island connects to the grid when the power
requested by the loads lies within the limits that are defined by the following parameters:
• "233.07 GdPwrStr" to "233.08 GdPwrStp"
Feeding into the grid
If the parameter "232.08.GdMod" is set to "GridFeed", the Sunny Island can feed into the grid,
whether or not "232.42 GdPwrEna" is enabled.