What to do if REFU REFUsol 08K Inverter showing overtemperature LT 1?
If your REFU Inverter displays an overtemperature LT 1 error, it indicates a cooler overtemperature (right). Check the temperature of the direct surroundings and reduce it as required.
Why REFU REFUsol 08K shows external cut-off error?
If your REFU Inverter detects an external cut-off, it means external monitoring has triggered a disconnection. Verify the external cut-off signal. Possible causes include wire breakage or a wrong sensor selection. Refer to the manual for the correct settings.
How to troubleshoot PM isolation RCD SR error on REFU REFUsol 08K?
If your REFU Inverter shows a PM isolation RCD SR error, it means the measured value of the residual currents are over the limits. Check system isolation. If you consider the system isolation to be in order, contact Service.
What causes grid frequency LT error in REFU REFUsol 08K?
If your REFU Inverter displays a grid frequency LT error, it means the power section has detected under/overfrequency. Check the frequency of the phases. If you consider the frequencies to be in order, contact the Service.
Why REFU REFUsol 08K showing overvoltage 2?
If your REFU Inverter detects overvoltage 2, the phase voltage has exceeded the limit value of the voltage average monitor for too long. Monitor line voltages and analyze the grid. If the line voltages appear to be in order, contact Service.
What to do if REFU Inverter showing overfrequency?
If your REFU Inverter is detecting an overfrequency, it means the grid frequency has exceeded the limit value. Check the frequency of the phases. If you believe the frequencies are normal, contact Service.
How to fix grid overvoltage on REFU REFUsol 08K?
If your REFU Inverter displays a grid overvoltage error, it means a phase overvoltage (AC) has been detected. Check the phase voltages using a true RMS measurement device. If the phase voltages appear normal, contact Service.
Specifies the required professional qualifications for personnel working with the inverter.
Details potential hazards and risks associated with improper use of the inverter.
Outlines safety measures to prevent injury from electrical components.
Warns about the danger of burns from hot surfaces on the inverter housing.
Provides guidelines for safe handling and assembly to prevent injuries.
Explains how to connect the DC power source (PV generator) to the inverter.
Defines criteria for the installation location, including safety and environmental considerations.
General instructions for mounting and installing the inverter onto a wall-mounting plate.
Identifies and describes the various connectors on the inverter's bottom side.
Explains the importance and procedure for grounding the inverter for safety and EMC compliance.
Details the steps and safety precautions for connecting the inverter to the AC power supply.
Step-by-step instructions for powering up the inverter after installation.
Explains the sequence and indicators during the inverter's self-test and activation.
Details how faults are detected, indicated, and stored in the fault memory.
Procedure for acknowledging faults to allow the inverter to reactivate.
General| Rated Power | 8 kW |
|---|---|
| Max. input voltage | 1000 V |
| Number of MPP Trackers | 2 |
| AC nominal voltage | 400 V |
| Frequency Range | 50 Hz / 60 Hz |
| Cooling Method | Convection |
| Protection class | I |
| Protection Degree | IP65 |
| Max. apparent AC power | 8000 VA |
| MPP voltage range | 350 V to 800 V |
| MPPT Range | 350 V to 800 V |
| Output Voltage | 400 V |
| AC Voltage Range | 310 V - 480 V |
| Operating Temperature Range | -25°C to +60°C |
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