What does 'HW COMM2' mean on my Delta Inverter?
A 'HW COMM2' error on your Delta Inverter may indicate that the Red. CPU is idling, so check reset and crystal in Red. CPU. It could also mean that the communication connection is disconnected, so check the connection between Red. CPU and DSP.
Why does my Delta Inverter show 'AC Volt High'?
A 'AC Volt High' error on your Delta Inverter can occur if the actual utility voltage exceeds the OVR setting. Check the utility voltage on the inverter terminal. It can also happen if the utility voltage exceeds the Slow OVR setting during operation, so check that as well. An incorrect country or Grid setting could also be the cause, so verify those settings. Finally, a detection circuit malfunction could be responsible; in that case, check the detection circuit inside the inverter.
What causes HW ZC Fail error on Delta RPI Inverter?
The HW ZC Fail error on your Delta Inverter is caused by malfunction in the detection circuit for the synchronal signal. Check the detection circuit for synchronal signal inside the inverter.
What to do if my Delta RPI shows AC Volt High error?
If your Delta Inverter displays an AC Volt High error, it could be due to several reasons. The actual utility voltage might be over the OVR setting, or it might be exceeding the Slow OVR setting during operation. Another cause could be an incorrect country or grid setting, or a detection circuit malfunction. To address this, check the utility voltage on the inverter terminal and verify the country and grid settings. Also, inspect the detection circuit inside the inverter.
What causes HW Con. Fail error on Delta RPI Inverter?
A HW Con. Fail error on your Delta Inverter can be caused by a wrong connection in the AC plug or a detection circuit malfunction. To fix this, check the AC connection, ensuring it accords with the manual, and check the detection circuit inside the inverter.
What does 'HW CT A Fail' mean on my Delta RPI Inverter?
A 'HW CT A Fail' error on your Delta Inverter may be caused by a broken test current loop, so check the connection of WC3 to CNC16. It may also indicate that CSC1 is defective, so replay CSC1 with new one. Finally, a detection circuit malfunction could be the reason; in that case, check the detection circuit inside the inverter.
What does 'HW NTC2 Fail' mean on my Delta RPI?
If your Delta Inverter is showing a 'HW NTC2 Fail' error, it may indicate that the ambient temperature is above 90 degrees or below -30 degrees. Check the installation ambient and environment. Another possible cause is a detection circuit malfunction, so check the detection circuit inside the inverter (RTB1).
What causes HW NTC3 Fail error on Delta RPI Inverter?
A HW NTC3 Fail error on your Delta Inverter can be triggered by an ambient temperature >90 ? or
What to do for Solar2 High error on Delta RPI Inverter?
If you're seeing a Solar2 High error on your Delta Inverter, the actual Solar2 voltage might be over 1000Vdc, or there could be a detection circuit malfunction. Try modifying the solar array setting to make the Voc less than 1000Vdc, and check the detection circuit inside the inverter.
What to do if Delta RPI Inverter shows 'Solar1 Low' error?
If your Delta Inverter displays a 'Solar1 Low' error, first check the Solar1 voltage connection to the inverter terminal, as the actual Solar1 voltage may be under the limit. If the actual Solar1 voltage is close to "0", some devices inside the inverter may be damaged, so check all switching devices in boost1. Finally, a detection circuit malfunction could also be the cause; in that case, check the detection circuit inside the inverter.
Covers DANGER, WARNING, and CAUTION levels for immediate harm, burns, or machine damage.
Describes the process of mounting the inverter bracket and the unit on the wall.
Details pre-wiring checks, DC fuse info, and critical safety warnings.
Guides on connecting the inverter to the AC grid for 3-phase systems.
Provides instructions and specifications for connecting the DC input from the PV array.
Guides users through the initial startup process, including language, country, and protocol settings.
Introduces active and reactive power control functions, including Power Limit and Power vs. Frequency modes.
Details how to enable FRT to maintain grid connection during voltage drops.
Provides step-by-step instructions for replacing a faulty SPD.
Guides on checking and replacing the internal string fuses.
Lists error codes, possible causes, and troubleshooting actions for system errors.
Lists warning messages, possible causes, and troubleshooting actions.
Lists fault messages, possible causes, and troubleshooting actions.
General| Efficiency | Up to 98.8% (depending on model) |
|---|---|
| Frequency | 50 Hz / 60 Hz |
| Model | RPI Series |
| Type | Inverter |
| Protection Rating | IP65 |
| Cooling | Natural convection |
| Category | Inverter |
| Cooling Method | Natural convection |
| Dimensions | Varies by model |
| Weight | Varies by model |
| Protection Features | Overvoltage, Short Circuit |
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