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Goodwe GW8K-DT - User Manual

Goodwe GW8K-DT
74 pages
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User Manual
Grid-Tied PV Inverter
SDT G2 Series
V1.0-2022-01-17

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Questions and Answers

  • J
    Jaime FloydSep 23, 2025
    What does IFan Fail mean on my Goodwe GW8K-DT Inverter?
    • K
      Kathy KlineSep 23, 2025
      An IFan Fail error on your Goodwe Inverter indicates a fault in the internal fan of the inverter. Restart the inverter and check whether the inverter can work normally.
  • R
    Robert CarrAug 25, 2025
    How to fix an 'Over Temperature' error on my Goodwe GW8K-DT?
    • R
      Robert FrancisAug 25, 2025
      If your Goodwe Inverter is showing an 'Over Temperature' error, there are a few things to check: 1. Ensure that the inverter has adequate ventilation and space for heat dissipation. 2. Verify that the ambient temperature is not too high. 3. Confirm that the fans are working correctly and are not blocked.
  • J
    jamie81Aug 25, 2025
    What to do if my Goodwe GW8K-DT Inverter displays 'Isolation Fail'?
    • K
      Kimberly KnappAug 26, 2025
      If your Goodwe Inverter is showing an 'Isolation Fail' error, it could be due to: 1. A short circuit to the ground in the PV system. Check the PV input cables for any breaks. 2. A moist environment affecting the PV system's insulation. Ensure the module frames and metal bracket are securely grounded. 3. Also, check that the AC side is properly grounded.
  • V
    vincentbrooksAug 27, 2025
    What does 'Vac Fail' mean on my Goodwe GW8K-DT Inverter?
    • C
      Caitlin GonzalezAug 27, 2025
      If your Goodwe Inverter shows 'Vac Fail', it means the utility grid voltage is out of the allowed range. Make sure that the grid voltage is within the allowed range. Also, ensure that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are properly and firmly.
  • D
    David ButlerAug 27, 2025
    What causes 'Fac Fail' on a Goodwe GW8K-DT?
    • K
      kanekaraAug 27, 2025
      If your Goodwe Inverter shows 'Fac Fail', it indicates that the utility grid frequency is out of the allowed range. Check whether other electrical devices under the same grid connection point is working normally, and whether the main supply is normal. Ensure the grid frequency is within the allowed range and that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are properly and firmly. If the fault happens occasionally, it may be due to instantaneous utility grid frequency change and does not need to be handled.
  • J
    Jessica ColemanSep 14, 2025
    What does ARC Fault mean on a Goodwe GW8K-DT, and how do I fix it?
    • N
      nfloresSep 14, 2025
      An ARC Fault error on your Goodwe Inverter suggests that the PV string cables are arcing or are in poor contact. Check whether the PV terminals and cables are connected properly. Clear the error messages.
  • P
    Pamela EverettSep 12, 2025
    What should I do if my Goodwe Inverter displays a PV Over Voltage error?
    • P
      Patricia MccoySep 12, 2025
      A PV Over Voltage error on your Goodwe Inverter can occur if excess PV modules are connected in series, causing the open-circuit voltage to be higher than the operating voltage. Check whether the PV string input voltage is consistent with the value displayed on the LCD and verify that the PV string voltage meets the maximum input voltage requirements.
  • N
    nealbrandiSep 13, 2025
    Why does my Goodwe GW8K-DT show a Fac Fail error?
    • W
      wallacedylanSep 13, 2025
      A Fac Fail error on your Goodwe Inverter indicates that the utility grid frequency is out of the allowed range. Check whether other electrical devices connected to the same grid connection point are working normally, and whether the main supply is normal. Make sure that the grid frequency is within the allowed range. Also, ensure that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are properly and firmly connected. Pay attention to the frequency of the fault. If it happens occasionally, the fault may be caused by the instantaneous utility grid frequency change and does not need to be handled.
  • A
    Amber JohnsonSep 5, 2025
    What does 'IFan Fail' mean on my Goodwe GW8K-DT?
    • D
      David ClarkSep 5, 2025
      If your Goodwe Inverter shows 'IFan Fail', it means there is a fault with the internal fan of the inverter. Restart the inverter and check whether the inverter can work normally. For internal fan faults, contact after-sales service.
  • T
    Tammy PetersonSep 2, 2025
    What does 'DC Bus High' mean on my Goodwe GW8K-DT Inverter?
    • A
      Andrew ChaneySep 2, 2025
      If your Goodwe Inverter shows 'DC Bus High', it may indicate an internal fault. Ensure that the software version is the latest one. You can also try restarting the inverter to see if it resolves the issue.

Summary

Safety Precaution

2.1 General Safety

Provides general safety guidelines and precautions for installation and operation.

2.2 DC Side

Details safety precautions related to the DC side connections of the inverter.

2.3 AC Side

Details safety precautions related to the AC side connections of the inverter.

2.4 Inverter Installation

Highlights crucial safety warnings and requirements for inverter installation.

Installation

5.1 Installation Requirements

Specifies the environmental and mounting requirements for installing the inverter.

5.2 Inverter Installation

Details the procedures for mounting the inverter onto the wall.

Electrical Connection

6.1 Safety Precautions

Outlines critical safety measures to be taken before and during electrical connections.

6.2 Connecting the PE Cable

Explains how to correctly connect the protective earth (PE) cable to the inverter.

6.3 Connecting the PV Input Cable

Details the process of connecting the DC input cables from the PV array to the inverter.

6.4 Connecting the AC Output Cable

Provides instructions for connecting the AC output cable to the grid.

Equipment Commissioning

System Commissioning

8.2 Setting Inverter Parameters via LCD

Guides on setting inverter parameters using the LCD interface.

8.3 Setting Inverter Parameters via App

Guides on using the SolarGo app for setting inverter parameters and monitoring.

Maintenance

9.1 Power Off the Inverter

Details the procedure for safely powering off the inverter before maintenance.

9.4 Troubleshooting

Offers methods for troubleshooting common faults and information needed for support.

Technical Parameters

Goodwe GW8K-DT Specifications

General IconGeneral
Rated Output Power8000 W
Max. DC Input Voltage1000 V
Number of MPPTs2
Max. Input Current per MPPT13 A
AC Voltage Range180 - 280 V
THDi< 3%
AC Grid Frequency50/60 Hz
Max. Efficiency98.3%
Euro Efficiency97.5%
DC SwitchYes
Protection DegreeIP65
Warranty5 years
Max. DC Power12000 W
Max. AC Power8800 VA
Rated AC Voltage220 / 380 V
Power Factor0.8 leading to 0.8 lagging
Operating Temperature Range-25°C to 60°C
CommunicationRS485, Wi-Fi, Ethernet
CoolingNatural Convection

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