What causes a DC Arc Fault in a Huawei Copy-SUN2000 L1 Inverter?
A DC Arc Fault in your Huawei Inverter can be caused by arcing or poor contact in the PV string power cables. Check whether the string cables arc or are in poor contact.
Why is my Huawei Copy-SUN2000 L1 Inverter showing High String Input Voltage?
If your Huawei Inverter displays a High String Input Voltage error, it's because the PV array is not properly configured. Specifically, too many PV modules are connected in series, causing the open-circuit voltage to exceed the SUN2000's maximum operating voltage. To resolve this, check the serial connection configuration of the PV string and ensure that the PV string open-circuit voltage does not exceed the SUN2000's maximum operating voltage. After correcting the PV array configuration, the alarm should disappear.
What to do if Huawei Copy-SUN2000 L1 Inverter displays DC Arc Fault?
If your Huawei Inverter displays a DC Arc Fault, it means the PV string power cables are arcing or have poor contact. You should check whether the string cables arc or are in poor contact.
What does Grid-tied/Off-grid Controller Abnormal mean on a Huawei Copy-SUN2000 L1 Inverter?
If your Huawei Inverter shows a Grid-tied/Off-grid Controller Abnormal error, it means that the inverter fails to communicate with the Smart Backup Box. 1. Send a shutdown command on the App. Turn off the AC output switch, DC input switch, and battery switch. 2. Check whether the power cable and RS485 cable between the Smart Backup Box and the inverter are normal. 3. After 5 minutes, turn on the battery switch, AC output side, AC output switch, and DC input switch.
What to do if Huawei Copy-SUN2000 L1 Inverter shows High String Input Voltage?
If your Huawei SUN2000 Inverter is showing a High String Input Voltage, it means that the PV array is not properly configured. Too many PV modules are connected in series, causing the open-circuit voltage to exceed the maximum operating voltage. To fix this, check the serial connection configuration of the PV string to ensure that the PV string open-circuit voltage does not exceed the maximum operating voltage of the SUN2000. After correcting the PV array configuration, the alarm should disappear.
What to do if my Huawei Copy-SUN2000 L1 has a Device Fault?
If your Huawei SUN2000 Inverter has a Device Fault, turn off the AC output switch and DC input switch, and then turn them on after 5 minutes.
What to do if Huawei Copy-SUN2000 L1 Inverter Upgrade Failed or Version Mismatch?
If your Huawei Inverter displays an Upgrade Failed or Version Mismatch error, perform an upgrade again.
What to do if Huawei Inverter showing Faulty Power Collector?
If your Huawei Inverter is showing a Faulty Power Collector message: * Check that the configured power meter model is the same as the actual model. * Check that the communications parameters for the smart power sensors are the same as the SUN2000 RS485 configurations. * Check whether the smart power sensor is powered on and whether the RS485 communications cable is connected.
What does Abnormal PV Module Configuration mean on a Huawei Copy-SUN2000 L1 Inverter?
If your Huawei Inverter shows an Abnormal PV Module Configuration error, it means that the PV module configuration does not meet requirements, or the PV module output is reversely connected or short-circuited. Check whether the total number of PV modules, number of PV modules in a string, and number of PV strings meet requirements and whether the PV module output is reversely connected.
What to do if my Huawei Inverter shows Low Insulation Resistance?
If your Huawei Inverter shows a Low Insulation Resistance error, it indicates a short circuit between the PV array and the ground, or that the ambient air of the PV array is damp, causing poor insulation. First, check the output impedance of the PV array to ground. If there is a short circuit or lack of insulation, rectify it. Second, check that the PE cable of the SUN2000 is correctly connected. Third, if the impedance is lower than the specified protection threshold in rainy and cloudy days, set Insulation resistance protection using the mobile app, SmartLogger, or NMS.
General| Number of MPPTs | 2 |
|---|---|
| Number of MPP trackers | 2 |
| Cooling Method | Natural convection |
| Protection Level | IP65 |
| Type | String Inverter |
| Nominal Output Voltage | 230 V |
| Rated output voltage | 230 V |
| Operating Temperature | -25 °C ~ +60 °C |
| Communication | RS485 |
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