Huawei SUN2000-8KTL-M1 User Manual (English)

Questions and Answers:

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Jenna FernandezSep 5, 2025
How to troubleshoot low insulation resistance on Huawei Controller?
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  Alex ChambersSep 5, 2025
  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.
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brianna82Aug 25, 2025
How to troubleshoot grid overvoltage on Huawei Controller?
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  Jessica SmithAug 25, 2025
  A grid overvoltage alarm on your Huawei Controller indicates that the grid voltage exceeds the upper threshold. Try these steps: 1. If the alarm is occasional, it could be a temporary grid issue. The SUN2000 should recover automatically once the grid stabilizes. 2. If the alarm persists, verify that the grid voltage is within the acceptable range. If it's not, contact your local power operator. If it is within range, you can adjust the grid overvoltage protection threshold using the mobile app, SmartLogger, or NMS, but only with the consent of the local power operator. 3. Also, check for peak voltage issues on the power grid; if the problem persists, contact the power operator.
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bishoprebeccaAug 25, 2025
What to do if Huawei Controller reports grid loss?
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  Shannon HendersonAug 26, 2025
  If the Huawei Controller displays a grid loss alarm, it means a power grid outage has occurred, or the AC circuit is disconnected, or the AC switch is off. The alarm should clear automatically once the power grid recovers. You can also check if the AC circuit is disconnected or if the AC switch is turned off.
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Anthony FullerAug 27, 2025
How to fix high string input voltage on Huawei Controller?
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  Ryan PenningtonAug 27, 2025
  The high string input voltage on your Huawei Controller indicates that the PV array is not properly configured. Too many PV modules are connected in series, causing the PV string open-circuit voltage to exceed the maximum operating voltage. To resolve this, reduce the number of PV modules connected in series until the PV string open-circuit voltage is within the acceptable range. The alarm should disappear once corrected.
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Jason HughesAug 27, 2025
What to do if Huawei Controller shows string reverse connection?
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  hermanlisaAug 27, 2025
  The 'String reverse connection' error on your Huawei Controller indicates that the PV string polarity is reversed. To fix this, check if the PV string is connected in reverse. If it is, wait until the PV string current drops below 0.5 A, then turn off the DC switch and correct the PV string polarity.
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Antonio StewartAug 28, 2025
How to resolve DC arc fault on Huawei Controller?
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  Amanda KimAug 28, 2025
  If your Huawei Controller is showing a DC arc fault, it means the PV string power cables are arcing or have poor contact. Check the PV string cables to ensure they are properly connected and not arcing.
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Bethany SimpsonSep 6, 2025
What causes output overcurrent on Huawei Controller?
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  Lori HallSep 6, 2025
  An output overcurrent alarm on the Huawei Controller means the power grid voltage dropped dramatically or the grid is short-circuited, causing the SUN2000's transient output current to exceed the upper threshold, triggering protection. The SUN2000 monitors external conditions and should automatically recover after the fault is rectified. If the alarm persists, check for a short circuit in the output. If the problem continues, contact your dealer or Huawei technical support.
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gabriel93Sep 4, 2025
What does abnormal grounding mean on a Huawei Controller?
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  Sara McdanielSep 4, 2025
  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.
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michael96Sep 1, 2025
Why is the grid frequency unstable on my Huawei Controller?
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  Matthew GriffinSep 2, 2025
  An unstable grid frequency alarm on the Huawei Controller indicates the power grid frequency change rate doesn't meet local power grid code requirements. Here's what you can do: 1. If the alarm is occasional, it may be a temporary grid issue, and the SUN2000 should recover automatically. 2. If the alarm persists, check whether the power grid frequency is within the acceptable range. If not, contact the local power operator.
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zkaufmanSep 3, 2025
How do I fix a phase wire short-circuited to PE error on a Huawei Controller?
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  bwellsSep 3, 2025
  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.

Huawei SUN2000-8KTL-M1 Specifications

General

Max. Efficiency	98.6%
Max. Input Voltage	1100 V
Nominal Input Voltage	600 V
Number of MPP Trackers	2
Max. Output Power	8000 W
Nominal Output Frequency	50 Hz / 60 Hz
Weight	17 kg
Max. apparent AC power	8800 VA
Rated AC power	8000 W
Operating Temperature Range	-25°C to +60°C
Cooling	Natural Convection
Protection Degree	IP65
Warranty	10 years
Nominal Output Voltage	230 V / 400 V