Huawei SUN2000-12KTL-M5

Other manuals for Huawei SUN2000-12KTL-M5

Questions and Answers:

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Donna SpencerAug 30, 2025
Why is my Huawei SUN2000-12KTL-M5 showing an output overcurrent error?
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  mhobbsAug 30, 2025
  An output overcurrent error on your Huawei Inverter indicates that the grid voltage has dropped dramatically or the grid is short-circuited, causing the inverter's output current to exceed the limit. The inverter will monitor conditions and try to recover automatically. If the alarm persists and affects energy yield, check for a short circuit in the output. If you can't fix it, contact your dealer or Huawei technical support.
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Rebecca RichardAug 29, 2025
What does it mean when my Huawei Inverter displays grid underfrequency?
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  Amy BeltranAug 29, 2025
  A grid underfrequency alarm on your Huawei Inverter indicates that the power grid frequency is lower than the local power grid code requirements. If the alarm occurs occasionally, it might be due to a temporary grid issue, and the inverter should recover automatically. If the alarm persists, verify that the power grid frequency is within the acceptable range. If it is not, contact the local power operator. If the frequency is within range, you can modify the grid underfrequency protection threshold through the app, SmartLogger, or NMS with the consent of the local power operator.
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Steven BrooksAug 28, 2025
What to do if Huawei SUN2000-12KTL-M5 Inverter shows AFCI self-check failure?
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  Tammy ScottAug 29, 2025
  If your Huawei Inverter shows an AFCI self-check failure, turn off both the AC output switch and the DC input switch. Wait for 5 minutes, then turn them back on. If the alarm continues, contact Huawei technical support.
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Jennifer NolanSep 12, 2025
How to fix High string input voltage on Huawei SUN2000-12KTL-M5?
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  Kenneth ValenciaSep 12, 2025
  If your Huawei Inverter displays 'High string input voltage', it means the PV array is not configured correctly. Too many PV modules are connected in series, causing the PV string open-circuit voltage to exceed the inverter's maximum operating voltage. Reduce the number of PV modules connected in series until the PV string open-circuit voltage is within the limit. The alarm should then disappear.
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Stacy GarrisonSep 15, 2025
What does Abnormal residual current mean on Huawei SUN2000-12KTL-M5 Inverter?
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  Alicia AndersonSep 15, 2025
  If your Huawei Inverter displays 'Abnormal residual current', it indicates that the insulation impedance on the input side to PE has decreased during operation. If the alarm occurs accidentally, it could be a temporary issue with the external power cable, and the inverter should recover automatically. If the alarm persists or lasts a long time, check the impedance between the PV string and ground to ensure it's not too low.
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Matthew WatkinsSep 22, 2025
What causes Protection upon Communication Failure on Huawei Inverter?
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  Patrick MurraySep 22, 2025
  If your Huawei Inverter displays 'Protection upon Communication Failure', it means communication was lost for too long, triggering the protection function. Check the communication cable connection. Once communication is restored, the device will recover upon receiving a scheduling command. If this protection isn't needed, you can disable it.
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Jennifer CurryAug 27, 2025
Why is my Huawei SUN2000-12KTL-M5 showing abnormal grounding?
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  Tara ThomasAug 27, 2025
  An abnormal grounding error on your Huawei Inverter indicates that the neutral wire or PE cable isn't connected, or the output mode is set incorrectly. To fix this, power off the inverter first (turn off the AC and DC switches and wait). Then: 1. Check the PE cable connection. 2. If connected to a TN grid, check the neutral wire connection and voltage to ground. 3. After powering on, ensure the inverter's output mode matches the cable connection mode.
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brandon20Aug 26, 2025
What to do if Huawei Inverter displays DC arc fault?
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  Chad BrownAug 27, 2025
  A DC arc fault on your Huawei Inverter means the PV string power cables are arcing or have poor contact. Check the PV string cables to ensure they are not arcing and are properly connected.
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Scott TorresAug 26, 2025
What causes grid undervoltage on Huawei Inverter?
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  Lindsay GonzalezAug 26, 2025
  A grid undervoltage error on your Huawei Inverter means the power grid voltage is too low, or the low voltage duration exceeds the LVRT specified value. Here's how to handle it: 1. If it's occasional, it might be a temporary grid issue; the inverter should recover automatically. 2. If it persists, check if the grid voltage is within range and contact the local power operator if it's not. If it is, you can modify the grid undervoltage protection threshold via the app, SmartLogger, or NMS, with the power operator's consent. 3. If it continues, inspect the AC circuit breaker and AC output power cable.
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levinejohnAug 25, 2025
How to resolve high string input voltage on a Huawei Inverter?
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  Bethany AdkinsAug 26, 2025
  A high string input voltage error on your Huawei Inverter means the PV array isn't properly configured, with too many PV modules connected in series, causing the PV string open-circuit voltage to exceed the inverter's maximum operating voltage. Reduce the number of PV modules connected in series until the PV string open-circuit voltage is at or below the inverter's maximum. The alarm should then disappear.

Huawei SUN2000-12KTL-M5 Specifications

General

Rated Output Power	12000 W
Max. DC Voltage	1100 V
Start Voltage	200 V
Number of MPPTs	2
Max. Input Current per MPPT	13 A
Max. Efficiency	98.6 %
MPPT Efficiency	99.9 %
Max. Apparent AC Power	13200 VA
Rated AC Frequency	50 Hz / 60 Hz
Grid Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading to 0.8 lagging
Power Factor	> 0.99
Total Harmonic Distortion (THD)	< 3 %
Cooling Method	Natural convection
Protection Level	IP65
Maximum Output Power	12000 W
DC Injection Current	<0.5% of rated output current
Protection Class	Class I
Operating Temperature Range	-25 °C ~ +60 °C