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
SMA America, LLC 11 Archiving Data on an SD Card
Technical description SI4548_6048-US-TB_en-13 93
11 Archiving Data on an SD Card
The Sunny Island can store firmware, parameters and measured data on a SD card which must be
FAT-16-formatted and may have a max. size of 2 GB (possible storage sizes are 32/64/128/256/
512 MB and 1GB and 2 GB). Use the SD card included in the delivery solely for the Sunny Island.
Do not save any multimedia data on the SD card.
File names are saved in 8.3 format and files with other designations are ignored.
Example of a format
A valid 8.3 format is, for example, "M1111LOG.DAT".
8.3 is the "old" MS-DOS format with a file name that has a maximum of 8 figures before and
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.
Using memory cards in the off-grid system
If you combine the Sunny Island inverters SI 4548-US-10/5048U/6048-US-10 in one off-grid
system, use one SD card always only for one type of Sunny Island. This ensures the optimum
functioning of the off-grid system.
• Make a note of the type of the Sunny Island used on the SD card after the first data
recording.
• Only insert this SD card into this type of Sunny Island.










