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
20 Troubleshooting SMA America, LLC
218 SI4548_6048-US-TB_en-13 Technical description
20.9 Troubleshooting
Answers are provided below for faults that may occur in practice:
Why does the Sunny Island not connect to the running generator?
• Is the fuse on the generator ok?
• Has the power which is allowed to be fed back into the generator during the permissible time
been exceeded ("233.14 GnRvTm" parameter)? If yes, "!" is displayed. Generator connection
is blocked for the set time. Set the "540.02 GnAck" parameter to Ackn.
• If the generator control relay (GnReq) is open: has the generator been started manually
("234.07 GnStrMod" parameter)? Change the setting to autostart, if required.
• Is a GenMan used in the system?
– Check the return signal (DigIn)
– The generator can only be started manually using GenMan.
Why is the display of the Sunny Island dark and why is nothing shown on the
display?
• Is the DC circuit breaker of the Sunny Island switched to "ON"? In this case, the device has
switched off to protect the battery from deep discharge (see Section 13.3 "State of Charge
(SOC) and State of Health (SOH)", page 107). After self-disconnection, restart the
Sunny Island as described in this document (see Section 9.5 "Reactivating the Device Following
Automatic Shutdown", page 75).
• The external battery fuse has tripped.
W884 1 No PV voltage or short-circuit on Sunny Island Charger 4
W885 1 Sensor error (or undertemperature) on Sunny Island Charger 4
W886 1 Overtemperature Sunny Island Charger 4
W887 1 No communication with Sunny Island Charger 4 for more than 24 h
F890 2 Interference at external measurement point of Multicluster Box
F891 2 Interference at external measurement point of Multicluster Box slave 1
F892 2 Interference at external measurement point of Multicluster Box slave 2
Display no. Level Description