Goodwe GW6.5K-ET User Manual (English)

Other manuals for Goodwe GW6.5K-ET

Questions and Answers:

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Elizabeth RuizSep 4, 2025
What does Grid 10min Overvoltage mean on Goodwe Inverter?
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  Thomas SchneiderSep 4, 2025
  A 'Grid 10min Overvoltage' error on your Goodwe Inverter indicates that the moving average of the grid voltage over 10 minutes exceeds safety requirements. If this occurs occasionally, it may be a temporary issue with the utility grid, and the inverter should recover automatically. If the problem occurs frequently, check whether the grid voltage is within the permissible range. If it exceeds the permissible range, contact the local power company. If the grid voltage is within the permissible range, you may need to modify the grid overvoltage rapid protection threshold after obtaining consent from the local power company.
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daniel67Sep 3, 2025
Why am I getting an Abnormal Ground error on my Goodwe Inverter?
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  miguelpatelSep 3, 2025
  An 'Abnormal Ground' error on your Goodwe Inverter can be caused by two main issues: either the PE cable of the inverter is not properly connected, or the L and N cables are connected reversely when the output of the PV string is grounded. To resolve this, first, check whether the PE cable of the inverter is connected properly. Second, check whether the L and N cables are connected reversely if the output of the PV string is grounded.
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Justin TaylorAug 23, 2025
Why Goodwe GW6.5K-ET Inverter ET did not start up with PV only?
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  Christopher NelsonAug 23, 2025
  If your Goodwe Inverter ET doesn't start up with PV only, ensure the PV voltage is greater than 180V (230V is needed to enter on-grid mode). Also, verify that the polarities (+/-) are correctly connected between the ET and PV panels and not reversed.
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Lauren WalkerSep 1, 2025
What does Grid Rapid Overvoltage mean on Goodwe Inverter?
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  Priscilla WilliamsSep 2, 2025
  A 'Grid Rapid Overvoltage' error on your Goodwe Inverter indicates an abnormal or ultra-high grid voltage. If the problem occurs occasionally, it may be a temporary issue with the utility grid, and the inverter should recover automatically. If the problem occurs frequently, check whether the grid voltage is within the allowed range. If it exceeds the permissible range, contact the local power company. If the grid voltage is within the permissible range, you may need to modify the grid overvoltage rapid protection threshold after obtaining consent from the local power company.
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James ReedAug 31, 2025
What causes an Abnormal GFCI 30mA error on a Goodwe Inverter?
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  jwebbSep 1, 2025
  An 'Abnormal GFCI 30mA' error on your Goodwe Inverter indicates that the input insulation impedance has become low during operation. If this occurs occasionally, it might be due to a cable issue, and the inverter should recover automatically once the problem is resolved. However, if the problem occurs frequently or persists, check whether the impedance between the PV string and PE is too low.
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Lynn IrwinAug 30, 2025
What to do for Grid Undervoltage error on Goodwe Inverter?
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  bellmiaAug 30, 2025
  A 'Grid Undervoltage' error on your Goodwe Inverter means the grid voltage is lower than the permissible range, or the duration of low voltage exceeds the LVRT requirement. If the problem occurs occasionally, the utility grid may be temporarily abnormal, and the inverter will recover automatically. If it occurs frequently, check if the grid voltage is within the permissible range and contact the local power company if it is not. If the grid frequency is within range, consider modifying the undervoltage protection threshold, LVRT, or disabling the undervoltage protection function after getting approval from the local power company. Also, check the AC circuit breaker and output cables to ensure they are securely and correctly connected.
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Ryan MccartyAug 30, 2025
What does Grid Overfrequency mean on Goodwe GW6.5K-ET Inverter?
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  Joseph HarrisAug 30, 2025
  A 'Grid Overfrequency' error on your Goodwe Inverter indicates that the grid frequency exceeds the local grid standard. If this occurs occasionally, it may be a temporary issue with the utility grid, and the inverter should recover automatically. If the problem occurs frequently, check whether the grid frequency is within the permissible range and contact the local power company if it exceeds that range. If the grid frequency is within the permissible range, you may need to modify the overfrequency protection threshold or disable the overfrequency protection function after obtaining consent from the local power company.
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Rodney RodriguezAug 29, 2025
What does Grid Underfrequency mean on Goodwe GW6.5K-ET Inverter?
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  Lance AndersonAug 29, 2025
  A 'Grid Underfrequency' error on your Goodwe Inverter indicates that the grid frequency is lower than the local grid standard. If this occurs occasionally, it may be a temporary issue with the utility grid, and the inverter should recover automatically. If the problem occurs frequently, check whether the grid frequency is within the permissible range and contact the local power company if it exceeds that range. If the grid frequency is within the permissible range, you may need to modify the underfrequency protection threshold or disable the underfrequency protection function after obtaining consent from the local power company, or close the “Grid Underfrequency” function.
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Kimberly GardnerAug 28, 2025
How to fix a Grid Overvoltage error on my Goodwe Inverter?
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  mcfarlandaaronAug 28, 2025
  A 'Grid Overvoltage' error on your Goodwe Inverter indicates that the grid voltage is outside the acceptable range or the duration of high voltage exceeds the HVRT requirement. Here's what you can do: 1. If this occurs occasionally, it might be a temporary grid abnormality. The inverter should automatically recover once the grid returns to normal. 2. If it happens frequently, check if the grid voltage is within the permissible range. If it exceeds this range, contact your local power company. 3. Also, ensure the AC circuit breaker and output cables are securely and correctly connected.
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Marcus JimenezAug 27, 2025
What to do if my Goodwe Inverter shows 'Low Insulation Res.'?
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  Tony HigginsAug 27, 2025
  A 'Low Insulation Res.' error on your Goodwe Inverter typically means one of two things: either the PV string is short-circuited to PE, or the PV system is in a moist environment with poorly insulated cables. To resolve this: 1. Check if the resistance of the PV string to PE exceeds 50k?. If not, identify and fix the short circuit. 2. Verify that the PE cable is correctly connected. 3. If the resistance drops on rainy days, reset the ISO via the SolarGo app.

Goodwe GW6.5K-ET Specifications

General

Model	GW6.5K-ET
Rated Output Power	6500 W
Max. DC Input Voltage	1000 V
Number of MPPT Trackers	2
Rated AC Output Power	6500 W
Max. AC Apparent Power	6500 VA
Max. AC Output Current	28.3 A
Nominal AC Voltage	230 V
AC Voltage Range	180 - 280 V
Nominal Grid Frequency	50 / 60 Hz
Total Harmonic Distortion (THD)	< 3%
Max. Efficiency	98.3 %
Euro Efficiency	97.5 %
DC Switch	Yes
Protection Degree	IP65
Cooling Method	Natural convection
Warranty	5 years
Operating Temperature Range	-25 °C to +60 °C
Communication	RS485 / WiFi
MPPT Voltage Range	200-800 V
Power Factor	> 0.99 (adjustable ±0.8)