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
16 Multicluster Operation SMA America, LLC
148 SI4548_6048-US-TB_en-13 Technical description
16.6 Testing the Multicluster Communication
Enter the installer password in order to be able to select the parameters "510.08 TstClstCom" and
"510.09 ClstComStt".
1. Using the parameter "510.08 TstClstCom" a communication test between the clusters can be
started from each master device of a cluster. Only switch the master device of the extension
cluster to "Transmit".
2. Request the status of the test via the Parameter "510.09 ClstComStt" at each master, including
the master at which the test was started.
☑ If the communication test is successful, the status "OK" appears on each master.
16.7 Automatic Frequency Synchronization
In multicluster operation, the automatic frequency synchronization can only be activated at the main
master. This function is activated using the "250.11 AfralEna" parameter.
16.8 Updating the Firmware
Carry out the update on all masters of the individual
clusters via an SD card. All extension masters must have
completed their updates! The message shown on the right
is displayed.
After the update of the masters has been carried out, carry out an automatic update of the slaves.
Nominal capacity of the battery storage systems
Ideally, the various battery storage systems should all have the same nominal capacity.
If the nominal capacity varies by up to 30%, a similar average state of charge is ensured via
the equalization function. However, the smallest battery is then cycled more intensively.
The nominal power and overload capacity are no longer the value of an individual device
multiplied by the number of devices. Instead, it is 10% to 20% lower for the cluster with the
smaller battery.
Stopping the Sunny Island
It is recommended to stop the entire cluster network, and to deactivate the loads insofar as this
is possible.
DC circuit breaker
Do not activate the DC circuit breaker during update process.
Starting the Multicluster system
Start the system only after the firmware on all Sunny Island devices has been updated.