How do I fix a phase wire short-circuited to PE error on a Huawei Controller?
If the Huawei Controller indicates a phase wire short-circuited to PE, it means the impedance of the output phase wire to PE is low, or the output phase wire is short-circuited to PE. Check the impedance of the output phase wire to PE, locate the position with low impedance, and rectify the fault.
What does abnormal grounding mean on a Huawei Controller?
Abnormal grounding on the Huawei Controller indicates that the neutral wire or PE cable of the inverter is not connected, or the output mode set for the inverter is inconsistent with the cable connection mode. Power off the inverter first (turn off the AC output switch and DC input switch, and wait for a period of time). Then: 1. Check whether the PE cable for the inverter is connected properly. 2. If the inverter is connected to a TN power grid, check whether the neutral wire is properly connected and whether the voltage of the neutral wire to ground is normal. 3. After powering on the inverter, check whether the output mode set for the inverter is consistent with the output cable connection mode.
How to troubleshoot low insulation resistance on Huawei Controller?
Low insulation resistance on your Huawei Controller indicates a short circuit between the PV array and the ground, or that the PV array is in a moist environment with poor insulation to the ground. To address this: 1. Check the impedance between the PV array output and the ground. Rectify any short circuits or insufficient insulation. 2. Check whether the PE cable of the SUN2000 is correctly connected. 3. If the impedance is lower than the specified protection threshold in a cloudy or rainy environment, log in to the app, SmartLogger, or NMS and set the Insulation resistance protection threshold.
General| Model | SUN2000-3KTL-M1 |
|---|---|
| Type | String Inverter |
| Max. DC Input Voltage | 600 V |
| MPPT Voltage Range | 90 V - 560 V |
| Rated AC Output Power | 3000 W |
| Max. AC Output Power | 3300 W |
| Nominal AC Voltage | 220 V / 230 V / 240 V |
| AC Voltage Range | 180 V - 280 V |
| AC Output Frequency | 50 Hz / 60 Hz |
| Max. Efficiency | 98.6% |
| MPPT Trackers | 2 |
| DC Inputs per MPPT | 1 |
| Max. Input Current per MPPT | 11 A |
| Operating Temperature Range | -25°C to +60°C |
| Cooling Method | Natural Convection |
| Protection Degree | IP65 |
| Max. DC Input Power | 4500 W |
| Communication | RS485 |
| Dimensions (W x H x D) | 365 mm x 365 mm x 156 mm |
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