What does System Fault mean on my Huawei Inverter?
A System Fault on the Huawei Inverter indicates an unrecoverable fault has occurred on a circuit inside the inverter. Flip the DC SWITCH on the inverter to OFF, wait 5 minutes, and then flip the DC SWITCH to ON. Check if the fault is rectified.
What to do if Huawei SUN2000-28KTL Firmware Upgrade Failed?
A Firmware Upgrade Failed error on a Huawei Inverter means the upgrade process was incomplete. Upgrade again.
How to fix DC Over Voltage on Huawei Inverter?
If your Huawei Inverter SUN2000 is showing a DC Over Voltage alarm, it means the voltage from your PV modules is too high. To fix this, you need to reduce the number of PV modules connected in series for each PV string (1 and 2, 3 and 4, or 5 and 6) until the open-circuit voltage is at or below the inverter's maximum input voltage. Once you've adjusted the PV array configuration, the SUN2000 alarm should disappear.
Why does my Huawei Inverter show Abnormal Grid Voltage?
If your Huawei Inverter is showing an Abnormal Grid Voltage error, it could be due to a couple of reasons. If the alarm seems to be a one-time occurrence (Cause ID = 4), it might be due to a temporary issue with the power grid, and the SUN2000 should automatically return to normal operation once the grid stabilizes. However, if the grid-tied point voltage is consistently too high (Cause ID = 16/19/26), you should contact your local power operator to investigate the grid conditions.
What to do if Huawei SUN2000-28KTL reports Abnormal Invert Circuit?
If your Huawei SUN2000 Inverter displays an Abnormal Invert Circuit error, it could be due to several reasons. If the cause ID is 13, 14, or 16, the SUN2000 monitors its external working conditions in real time and automatically reverts to normal operating status after the fault is rectified. If the Reason ID is 20, check whether the SUN2000 output cables are short-circuited and rectify any fault.
General| Model | SUN2000-28KTL |
|---|---|
| Rated Output Power | 28 kW |
| Max. Input Voltage | 1100 V |
| MPPT Voltage Range | 200 V - 1000 V |
| Number of MPPT Trackers | 2 |
| Max. Input Current per MPPT | 26 A |
| Rated AC Voltage | 400 V |
| Rated Output Voltage | 400 V |
| Output Frequency | 50 Hz / 60 Hz |
| Max. Efficiency | 98.6% |
| Protection Degree | IP65 |
| DC Connection | MC4 |
| Maximum Output Power | 28 kW |
| Power Factor Adjustment Range | 0.8 leading ... 0.8 lagging |
| Operating Temperature Range | -25 °C to 60°C |
| Cooling | Natural cooling |
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