Huawei SUN2000-25KTL-M5

Other manuals for Huawei SUN2000-25KTL-M5

Questions and Answers

D
David RoblesSep 6, 2025
What does abnormal active power scheduling instruction mean on a Huawei SUN2000-25KTL-M5 Inverter?
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  Mary JohnsonSep 6, 2025
  If your Huawei Inverter displays an abnormal active power scheduling instruction, it means the DI input is abnormal or inconsistent with the configuration. Check whether the cables are correctly connected to the DI ports. On the DI active scheduling screen under the dry contact scheduling settings, view the DI signal configuration mapping table. Contact the power grid company to check whether the configurations in the mapping table are complete and meet the requirements.
O
owoodAug 25, 2025
How to fix low insulation resistance on Huawei Inverter?
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  sharrisAug 25, 2025
  A low insulation resistance error on your Huawei Inverter indicates a short circuit between the PV array and PE, or that the PV string has been in a moist environment for a long time, leading to poor insulation to ground. To resolve this: * Check the impedance between the PV string and the PE cable for shorts and fix them. * Ensure the inverter's PE cable is correctly connected. * If the low impedance is confirmed in cloudy or rainy conditions, adjust the insulation resistance protection threshold via the app, SmartLogger, or NMS.
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Julie BennettAug 25, 2025
How to resolve high string input voltage on a Huawei Inverter?
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  Dylan PerryAug 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.
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Mary DurhamSep 15, 2025
What does Abnormal residual current mean on Huawei SUN2000-25KTL-M5 Inverter?
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  Ricky GuzmanSep 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.
E
Edwin DavisSep 23, 2025
What does Abnormal Reactive Power Scheduling Instruction mean on Huawei SUN2000-25KTL-M5 Inverter?
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  Jacob WatsonSep 23, 2025
  If your Huawei Inverter displays 'Abnormal Active Power Scheduling Instruction' or 'Abnormal Reactive Power Scheduling Instruction', it indicates an issue with the DI input or a configuration mismatch. Check that the cables are correctly connected to the DI ports. Then, view the DI signal configuration mapping table on the DI scheduling screen under dry contact settings. Contact the power grid company to verify that the configurations in the mapping table are complete and meet the requirements.
S
Sara FordSep 12, 2025
How to resolve String Reverse Connection on Huawei Inverter?
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  Michael WongSep 12, 2025
  If your Huawei Inverter is showing a 'String Reverse Connection' error, it means the polarity of the PV string is reversed. To fix this, wait until night when solar irradiance is low and the PV string current drops below 0.5 A. Then, turn off the DC switch and correct the PV string connection.
D
Darryl JonesSep 2, 2025
What does abnormal residual current mean on a Huawei SUN2000-25KTL-M5 Inverter?
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  Jamie WilliamsSep 2, 2025
  An abnormal residual current on your Huawei Inverter indicates that the insulation impedance on the input side to PE has decreased during operation. If the alarm occurs accidentally, the external power cable may be temporarily abnormal, and the inverter will recover automatically after the fault is rectified. If the alarm persists or lasts a long time, check whether the impedance between the PV string and ground is too low.
R
Richard SotoSep 2, 2025
Why am I getting an output DC component overhigh error on my Huawei Inverter?
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  Lauren SuttonSep 2, 2025
  An output DC component overhigh error on your Huawei Inverter means the DC component of the inverter's output current is too high. The inverter will monitor external conditions and try to recover automatically. If the alarm persists and affects energy yield, contact your dealer or Huawei technical support.
L
Luis MannSep 22, 2025
What causes Protection upon Communication Failure on Huawei Inverter?
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  Alison ThompsonSep 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.
J
Jacob NobleAug 28, 2025
What to do if Huawei SUN2000-25KTL-M5 Inverter shows AFCI self-check failure?
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  Jaclyn SummersAug 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.

Huawei SUN2000-25KTL-M5 Specifications

General

Model	SUN2000-25KTL-M5
Rated Output Power	25 kW
Max. DC Voltage	1100 V
Input Voltage Range	200 V - 1000 V
Start Voltage	200 V
MPPT Voltage Range	200 V - 1000 V
Number of MPP Trackers	2
Rated AC Power	25 kW
Max. Apparent AC Power	27.5 kVA
Rated AC Frequency	50 Hz / 60 Hz
Max. Output Current	36 A
Total Harmonic Distortion (THD)	< 3%
Max. Efficiency	98.6%
MPPT Efficiency	99.9%
DC Connection	MC4
Protection Class	IP65
Operating Temperature Range	-25 °C to +60 °C
Relative Humidity (Operating)	0% - 100%
Operating Altitude	4000 m
Display	LED indicators
Protection Level	IP65
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
Cooling	Natural convection
Communication	RS485
Cooling Method	Natural convection