What to do when SUNFLX Inverter displays low grid voltage?
If the SUNFLX Inverter displays low grid voltage, verify that the grid voltage is within the normal range. If the grid voltage is abnormal, wait until it returns to the normal range.
How to fix no display on SUNFLX Inverter screen?
If your SUNFLX Inverter screen is blank, ensure the battery or PV switch is closed and in the "ON" position. You can also try pressing any button on the screen to wake it up from sleep mode.
What to do if SUNFLX SEI-8K-SP Inverter has short-circuit protection?
If the SUNFLX Inverter indicates a short-circuit, carefully inspect the load connection and eliminate any short-circuit faults. After doing so, power the system back on to restore load output.
What to do if SUNFLX Inverter shows a battery disconnected alarm?
If the SUNFLX Inverter is alarming about a disconnected battery, verify that the battery is properly connected and that the battery circuit breaker is closed.
How to check PV overvoltage on SUNFLX Inverter?
If the SUNFLX Inverter reports PV overvoltage, use a multimeter to check if the PV input voltage is exceeding the maximum allowable input voltage.
What happens when SUNFLX SEI-8K-SP's heat sink temperature is too high?
If the SUNFLX Inverter's heat sink is overheating, allow the device to cool down until the temperature falls below the recovery temperature. After that, normal charge and discharge control will resume.
What causes a low insulation resistance fault on SUNFLX Inverter?
If the SUNFLX Inverter shows a low insulation resistance fault, ensure the system is well grounded and inspect the PV modules and cables for any wear.
How to troubleshoot leakage current overload fault on SUNFLX SEI-8K-SP?
If the SUNFLX Inverter displays a leakage current overload fault, ensure that the system is properly grounded and that the loads are operating normally.
What to do when SUNFLX SEI-8K-SP Inverter displays high grid voltage?
If the SUNFLX Inverter shows high grid voltage, check that the grid voltage is within the normal range. If it's abnormal, wait for the grid voltage to return to normal.
What causes a parallel ID setting error on SUNFLX SEI-8K-SP Inverter?
If the SUNFLX Inverter displays a parallel ID setting error, check that the parallel ID number setting is not repeated among the connected units.
Guidance on utilizing the manual's sections and information effectively.
Explains safety symbols used throughout the manual for hazard identification.
Critical safety guidelines for installation, operation, and maintenance.
Introduces the SEI-SP series inverter and its core functionality.
Lists and describes the main features and capabilities of the inverter.
Guidelines for choosing an optimal and safe installation site.
How to set up the single-phase AC output connection.
Overview of the initial power-on and parallel operation setup.
Critical warnings for connecting multiple inverters in parallel.
Explains the control panel, keys, and LED indicators.
Configuration of system date, time, beep, and password settings.
Setting the operational modes like Off Grid, On Grid, and hybrid.
Defining the power source priority for load supply.
Prioritizes AC utility, then solar, then battery for load power.
Balances solar and utility power, using battery as backup.
Prioritizes solar power, using utility as a supplement.
Prioritizes battery power, switching to utility when battery is low.
Charges battery using both PV and mains power, prioritizing PV.
Charges battery solely using solar power for maximum energy efficiency.
Manages utility charging based on peak/valley electricity tariffs.
Manages battery discharging based on time periods for load supply.
Specific operating parameters for various lead-acid battery types.
General introduction to the inverter's communication interfaces.
Details on connecting to the inverter via the USB-B port.
Lists all fault codes and their meanings.
Details the various built-in protection mechanisms of the inverter.
Technical data for inverter output power, voltage, current, and frequency.
Technical data related to battery types, voltage, and charging.
Technical data for PV input, including MPP trackers and voltage limits.
General| Model | SEI-8K-SP |
|---|---|
| Rated AC Output Power | 8000W |
| Number of MPPT Trackers | 2 |
| Protection Level | IP65 |
| Rated AC Voltage | 230V |
| AC Output Voltage | 230V |
| AC Voltage Range | 180V-280V |
| Communication | RS485, WiFi/GPRS |
| Protection | DC reverse polarity protection, AC short circuit protection, Over temperature protection |
| Operating Temperature Range | -25~+60°C |
| AC Output Frequency | 50Hz/60Hz |
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