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
21 Accessories SMA America, LLC
224 SI4548_6048-US-TB_en-13 Technical description
21 Accessories
You will find the corresponding accessories and spare parts for your product in the following
overview. If necessary, you can order these from SMA Solar Technology or your distributor.
Designation Brief description SMA order number
BatFuse-B.01 (250 A)
(not UL certified)
2-pole LV/HRC battery fuse-switch-disconnector
of size 1 for 1 Sunny Island, 3 DC inputs
(1 x battery and 2 x Sunny Island Charger),
1 X auxiliary voltage output with 8 A
BATFUSE-B.01
BatFuse-B.03 (250 A)
(not UL certified)
2-pole LV/HRC battery fuse switch disconnector
of size 1 for up to 3 Sunny Island, 6 DC inputs
(2 x battery and 4 x Sunny Island Charger),
1 X auxiliary voltage output with 8 A
BATFUSE-B.03
Load-shedding
contactor
3-pole load-shedding contactor with 48 V DC
coil for Sunny Island
The load-shedding contactor is available in
several versions. You can obtain more
information from SMA or your specialty retailer.
SI-LSXX
SI-Shunt Measuring shunts for the battery current
detection
The measuring shunt is available in several
versions. You can obtain more information from
SMA.
SI-SHUNTXXX
Sunny Island Charger
(not UL-certified)
Solar charge controller for Sunny Island systems
Battery voltage: 48 V/24 V/12 V
Battery current: 50 A at 48 V, 50 A at 12 V/24 V
Nominal power: 2000 W at 48 V,
max. PV voltage: 140 V
SIC50-MPT
Smart Load 6000 Adjustable dump load SL6000
RS485 retrofit kit RS485 interface 485PB-G3
Multicluster Piggy-Back Interface for communication between the
Sunny Island and the Multicluster Box
MC-PB
Sunny Island Charger
Piggy-Back
Interface for communication between the
Sunny Island and Sunny Island Charger
SIC-PB