What to do if the SMA SUNNY ISLAND 5048-US Inverter Sunny Island does not connect to the running generator?
If the SMA Inverter Sunny Island does not connect to the running generator, you can try the following: set the ”#540.02 GnAck” parameter to Ackn; change the setting to autostart, if required; check the return signal (DigIn).
Why does my SMA SUNNY ISLAND 5048-US Sunny Island connect to the running generator only for a short time?
The SMA Inverter Sunny Island might connect to the running generator for only a short time because of voltage and/or frequency limits. To resolve this, change voltage and/or frequency limits while observing the technical data for your generator.
General| AC Voltage | 120 / 240 V |
|---|---|
| AC Frequency | 60 Hz |
| Battery Voltage | 48 V |
| Input Voltage Range | 40 - 60 V |
| Max. Efficiency | 96% |
| Weight | 50 kg |
| Protection Class | IP54 |
| Model | SMA SUNNY ISLAND 5048-US |
| Rated Power | 4.8 kW |
| Max. apparent AC power | 5000 VA |
| Dimensions | 600 x 400 x 200 mm |
| Dimensions (H x W x D) | 600 x 400 x 200 mm |
| Operating Temperature Range | -25°C to +60°C |
| Maximum AC Output Power | 5000 W |
Explains hazard symbols (DANGER, WARNING, CAUTION, NOTICE) and product markings.
Details symbols for dangerous voltage, arc hazards, hot surfaces, and observation instructions.
Defines the manual's validity, target group, and provides additional information sources.
Explains document conventions for menus and parameters.
Describes the Sunny Island as a bidirectional inverter for off-grid systems.
Identifies key control elements and connection points on the device.
Lists all items included in the product packaging for completeness check.
Lists necessary tools and materials for proper installation and setup.
Provides guidance on how to locate the device's serial number and type plate.
Emphasizes following all operating and safety instructions to prevent injury and damage.
Details risks like electric shock, fire, and personal injury, with mitigation measures.
Crucial guidance on choosing a safe, accessible, and suitable installation site.
Step-by-step instructions for attaching the unit to a wall using the mounting bracket.
Specific guidance for securely mounting the device onto wall studs.
Safe steps to open the device for maintenance or inspection.
Safe steps to properly close the device after access.
Essential procedures for proper grounding to ensure electrical safety.
Details for connecting DC cables, including safety and sizing.
Instructions for connecting AC sources like loads, generators, and the grid.
Covers auxiliary connections like sensors, relays, and digital inputs.
Explains how to connect external communication devices.
Identifies display, LEDs, buttons, SD card slot, and DC breaker.
Explains how to interpret status messages and symbols shown on the display.
Details the operation of control buttons and status LEDs.
Outlines necessary checks and data backup before initial startup.
Step-by-step guide for initial system setup using the QCG.
Crucial steps for calibrating the battery current sensor after installation.
Instructions for safely turning on the Sunny Island unit.
Procedure to put the device into a low-power standby state.
Safe steps to completely shut down and disconnect power sources.
Guide for restarting the device after it has automatically shut down.
Explains how to navigate and understand the device's menu system.
Details how to view and modify device settings and parameters.
Method for quickly accessing specific parameters by number or name.
Explains the at-a-glance display of key system values.
Covers security measures and accessing advanced settings via password.
Comprehensive guide to interpreting all device display messages and symbols.
Explains the meaning and format of files stored on the SD card.
Procedures for safely handling the SD card for data transfer.
Methods for backing up and restoring device configurations using the SD card.
Detailed steps for updating the device's firmware using an SD card.
How to automatically disconnect loads to prevent battery deep discharge.
Features for power saving and scheduled device operation.
Explains how the device responds to faults and attempts restarts.
Function to maintain stable frequency in off-grid systems with generators.
How the system handles faults, especially in 3-phase configurations.
Importance of monitoring battery temperature for optimal charging.
Procedures for battery system restart and understanding charge/health states.
Detailed explanation of the multi-phase battery charging process.
How to connect and manage generators for power supply.
Procedures for connecting to the grid and managing grid outages.
Details manual and automatic generator start configurations.
Explains automatic generator start/stop based on SOC and load.
Setting operational limits for voltage and frequency during generator use.
Explains how multiple Sunny Island units communicate within a cluster.
Step-by-step guide for setting up a system with multiple Sunny Islands.
Procedures for operating and handling faults in a multicluster setup.
How generators and battery states are managed across clusters.
Verifying communication links between cluster units.
Guidance on connecting PV inverters to the Sunny Island.
Specific configuration for Sunny Boy inverters in off-grid mode.
How PV output is managed via frequency adjustments.
Instructions for cleaning the device's exterior and display.
Procedures for routine checks to ensure optimal operation and battery health.
Guidelines for environmentally responsible disposal of the unit.
Lists and explains parameters for monitoring system status.
Details configurable parameters for various system components.
Lists parameters used for system diagnostics and troubleshooting.
Steps to identify, confirm, and resolve device failures.
How failures are managed in multi-unit systems, including history logging.
Explains error codes, abbreviations, and event categories.
Critical steps for charging the battery in emergency situations.
Lists available optional accessories for the Sunny Island system.
Details the device's electrical performance characteristics.
Provides key data related to battery voltage, current, capacity, and type.
Information on device efficiency and power usage across operating conditions.
Includes physical dimensions, weight, certification, and environmental limits.
Details the available interfaces for communication and digital inputs.
Provides definitions for important terms used throughout the manual.
Lists contact details and necessary information for obtaining technical assistance.
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