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
3 Safety Precautions SMA America, LLC
26 SI4548_6048-US-TB_en-13 Technical description
3 Safety Precautions
3.1 Important Information on Operation
Follow all operating and safety precautions in this manual. If these instructions are ignored, a
significant danger of injury or death arises and damage to the device, system or plant may also result.
Carefully read the safety precautions before installing and commissioning the device. Store the
manual at an easily accessible location.
Danger to life due to high voltages in the Sunny Island. Risk of death or serious injury due to electric
shock.
• All work on the Sunny Island must only be carried out by electrically qualified persons.
• Work on the Sunny Island should only be carried out as described in this manual.
• All safety precautions listed here must be observed.
Destruction of the Sunny Island due to parallel connection of Sunny Island inverters which are set to
different grid voltages.
• Do not connect a Sunny Island in parallel if its line voltage is set to different values.
Batteries may be destroyed due to deep discharge.
The self-consumption of the Sunny Island discharges the battery. In standby mode, this load is about
4 W and about 25 W in no-load operation.
• If you install the Sunny Island and do not wish to use it immediately, switch the Sunny Island
off (see Section 9.3 "Switching Off", page 75).
• If you want to decommission the Sunny Island for a long period, switch the Sunny Island off
(see Section 9.3 "Switching Off", page 75).
Connection requirements
Be sure to observe all valid regional standards and directives.
Installation altitude
The Sunny Island has been designed for use at altitudes of up to 9,840 ft. (3,000 m) above
MSL. Please contact SMA Solar Technology before using the device at altitudes above
9,840 ft. (3,000 m).
A performance loss of 0.5% per 330 ft (100 m) is to be expected starting at an altitude of
6,560 ft. (2,000 m) above MSL!