Goodwe ET Series User Manual

Goodwe ET Series

80 pages

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User Manual

V1.1-2022-12-20

Hybrid Inverter

ET Series / ET Plus Series

5.0-10.0kW

AC-Coupled Inverter

BT Series

5.0-10.0kW

Table of Contents

Other manuals for Goodwe ET Series

Quick Installation Guide18 pages

Connection Manual3 pages

Questions and Answers:

A
Anthony ClarkAug 27, 2025
What does Grid Overfrequency mean on Goodwe Inverter?
- E
  Erica AdamsAug 27, 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.
A
Ashley MarshallAug 27, 2025
What to do for Grid Undervoltage error on Goodwe ET?
- S
  Stephanie OneillAug 28, 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.
D
Deborah HarperAug 28, 2025
What causes an Abnormal GFCI 30mA error on a Goodwe ET Inverter?
- D
  dlutzAug 28, 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.
B
Brandon ValdezAug 28, 2025
What does Grid Rapid Overvoltage mean on Goodwe Inverter?
- L
  loripetersonAug 28, 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.
S
Steve MclaughlinAug 29, 2025
How do I fix a PV Input Overvoltage error on my Goodwe ET Inverter?
- E
  Eric EvansAug 29, 2025
  A 'PV Input Overvoltage' error on your Goodwe Inverter means that too many PV panels are connected in series in the PV string. Check the serial connection of the PV array, ensuring that the open circuit voltage of the PV string does not exceed the inverter's maximum operating voltage.
C
Carlos MorrisonAug 29, 2025
Why am I getting an Abnormal Ground error on my Goodwe Inverter?
- T
  Tiffany VegaAug 29, 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.
C
Charles HobbsAug 30, 2025
What does Grid 10min Overvoltage mean on Goodwe ET Inverter?
- B
  Bryan ReynoldsAug 30, 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.
D
Devin SanchezAug 30, 2025
What causes a DC Arc Fault on a Goodwe ET?
- R
  ryan51Aug 30, 2025
  A 'DC Arc Fault' on your Goodwe Inverter can be caused by a DC terminal that is not firmly connected or a broken DC cable. Consult the Quick Installation Guide and verify that all cables are properly connected.
A
Autumn RobinsonAug 31, 2025
How to fix String1 PV String Reversed error on Goodwe Inverter?
- J
  Jacqueline AdamsAug 31, 2025
  If your Goodwe Inverter displays a 'String1 PV String Reversed' error, it means the PV string is connected in reverse. To fix this, check whether the PV1 and PV2 strings are connected reversely.
W
Wendy LawrenceAug 31, 2025
What does Large DC of AC current L1 mean on Goodwe ET?
- T
  Timothy JohnsonAug 31, 2025
  A 'Large DC of AC current L1' error on your Goodwe Inverter means the DC component of the output current exceeds the safety range. If the problem is caused by an external fault like a utility grid exception or frequency exception, the inverter will recover automatically after solving the problem. If the problem occurs frequently and the PV station cannot work properly, contact the dealer or the after-sales service.

Goodwe ET Series Specifications

General

Type	Hybrid Inverter
Number of MPPTs	2
THDi	<3%
Nominal AC Voltage	230V
AC Voltage Range	180V to 280V
Operating Temperature Range	-25°C to 60°C
Communication Interfaces	RS485, WiFi

Summary

Safety Precautions

General Safety Guidelines

Inverter and Battery Safety

Installation

Installation Requirements

Inverter Installation Procedures

Step-by-step guide for safely moving and mounting the inverter.

Electrical Connection

Safety Precautions

System Wiring Diagrams

Illustrates typical wiring diagrams for different grid configurations.

Cable Connections

Equipment Commissioning

Pre-Commissioning Checks

Power On Procedure

Step-by-step guide to safely power on the inverter system.

System Commissioning

Indicators and Buttons

Configuration and Monitoring

Maintenance

Powering Off and Removal

Troubleshooting Guide

Provides solutions for common faults and errors encountered with the inverter.

Routine Maintenance Schedule

Technical Parameters

ET/ET Plus Series Specifications

Detailed technical specifications for ET and ET Plus series inverters.

BT Series Specifications

Detailed technical specifications for BT series inverters.

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