What causes E01: Grid Freq Over Rating on my Delta RPI-H3 Inverter?
The E01 error on your Delta Inverter, indicating 'Grid Freq Over Rating', can be caused by the utility frequency being over the OFR setting, an incorrect country setting, or a detection circuit malfunction. You should check the utility frequency on the inverter terminal, verify the country setting, and inspect the detection circuit inside the inverter.
Why does my Delta RPI-H3 Inverter show E10: Grid Volt Under Rating error?
The 'E10: Grid Volt Under Rating' error on your Delta Inverter indicates that the actual utility voltage is under the UVR setting, the utility voltage is under the Slow UVR setting during operation, there's an incorrect country or Grid setting, or there's a detection circuit malfunction. To fix this, check the utility voltage connection to the inverter terminal and verify your country and Grid settings. If problems persist, inspect the detection circuit inside the inverter.
What to do if my Delta Inverter shows 'No Grid'?
If your Delta Inverter displays a 'No Grid' error, it could be due to a few reasons: the AC breaker might be off, there might be a disconnection in the AC plug, or internal fuses could be broken. To resolve this, first, switch on the AC breaker. Next, check the connection in the AC plug to ensure it's properly connected to the inverter. Finally, if the issue persists, replace the fuses and inspect all switching devices in the boost and inverter stages.
What can cause 'Grid Quality' issues on a Delta Inverter?
The 'Grid Quality' issue on your Delta Inverter is caused by a non-linear load in the Grid near to the inverter. The grid connection of the inverter needs to be far away from non-linear load if necessary.
What should I do if my Delta Inverter (RPI-H5) shows 'L/N Reversed'?
If your Delta Inverter (RPI-H5) displays the 'L/N Reversed' error, it indicates that the AC wiring is incorrect or the AC connection setting is wrong. First, check if the brown wire is connected to Line and the blue wire to Neutral. Then, check the display's “AC configurat.” setting.
What causes the 'DC Volt Over Rating' error on a Delta Inverter?
The 'DC Volt Over Rating' error on your Delta Inverter can arise if the actual Solar1 voltage exceeds 600Vdc (for RPI-H3) or 1000Vdc (for RPI-H5), or if there is a detection circuit malfunction. To resolve this, modify the solar array setting to ensure the Voc is less than 600Vdc (RPI-H3) or 1000Vdc (RPI-H5). If the issue persists, check the detection circuit inside the inverter.
What does 'Slow Under Frequency Range' mean on my Delta Inverter?
The 'Slow Under Frequency Range' error on your Delta Inverter indicates that the actual utility frequency is below the UFR setting, the country or grid setting is incorrect, or there's a detection circuit malfunction. To resolve this, check the utility frequency at the inverter terminal. Also, verify the country and grid settings. If the issue continues, inspect the detection circuit inside the inverter.
How to troubleshoot 'Slow Over Frequency Range' on Delta RPI-H3?
If your Delta Inverter is showing a 'Slow Over Frequency Range' error, it could be due to the actual utility frequency exceeding the OFR setting, an incorrect country or grid setting, or a problem with the detection circuit. Check the utility frequency on the inverter terminal. Also, verify the country setting. If the issue persists, inspect the detection circuit inside the inverter.
Why is my Delta RPI-H3 showing 'Slow Under Voltage Range' error?
The 'Slow Under Voltage Range' error on your Delta Inverter can be caused by the actual utility voltage being below the UVR setting, an incorrect country or grid setting, or a detection circuit malfunction. To fix this, check the utility voltage at the inverter terminal. Also, verify the country and grid settings. If the issue remains, inspect the detection circuit inside the inverter.
What to do if Delta Inverter shows 'Slow Over Voltage Range'?
If your Delta Inverter displays a 'Slow Over Voltage Range' error, it may be due to the actual utility voltage exceeding the OVR setting, an incorrect country or grid setting, or a detection circuit malfunction. Begin by checking the utility voltage at the inverter terminal. Then, verify the country and grid settings. If the problem persists, have the detection circuit inside the inverter inspected.
General| Max. AC Power | 3 kW |
|---|---|
| Number of MPPT Trackers | 1 |
| Cooling | Natural convection |
| AC Voltage Range | 180 ~ 280 V |
| Communication | RS485, WiFi |
| Protection | DC reverse polarity |
| Operating Temperature Range | -25 ~ +60 °C |
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