Goodwe SDT G2 Series - User Manual

Goodwe SDT G2 Series

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User Manual

Grid-Tied PV Inverter

SDT G2 Series

V1.0-2022-01-17

Table of Contents

Other manuals for Goodwe SDT G2 Series

Quick Installation Guide22 pages

Questions and Answers

D
Donna SinghSep 9, 2025
What causes an Isolation Fail error on a Goodwe Inverter, and how can I fix it?
- S
  Susan OlsonSep 9, 2025
  An Isolation Fail error on your Goodwe Inverter may be caused by a short-circuited PV system to the ground. Check whether the PV input cables are broken. It can also happen if the PV system is in a moist environment and the circuit is not well insulated to the ground. Verify that the module frames and the metal bracket are securely grounded, and check whether the AC side is properly grounded.
J
Jonathan RomeroSep 8, 2025
Why is my Goodwe Inverter showing an Over Temperature error?
- J
  jenkinsbrandySep 8, 2025
  An Over Temperature error on your Goodwe Inverter can occur if the inverter is installed in a place with poor ventilation. Check the installation environment and space of the inverter, ensuring that the ventilation meets heat dissipation requirements. The ambient temperature may also be too high; make sure that the fans are working properly and are not covered or blocked. Also, check whether the operating ambient temperature is too high.
F
Frederick JarvisSep 7, 2025
What to do if my Goodwe SDT G2 Inverter shows a Utility Loss error?
- A
  aarmstrongSep 7, 2025
  If your Goodwe Inverter displays a Utility Loss error, it could be due to a utility grid power failure. Check if other electrical devices connected to the same grid connection point are working normally and if the main supply is normal. It could also be due to a disconnected AC circuit or AC breaker, so ensure that the upstream switches of the inverter are connected. Also, verify that the phase sequence of the AC cables are correctly connected, and the neutral wire and PE cable are properly and firmly connected.
A
Aaron TorresAug 22, 2025
What to do if my Goodwe Inverter shows 'Utility Loss'?
- M
  Michelle CohenAug 22, 2025
  If your Goodwe Inverter displays a 'Utility Loss' error, it could be due to several reasons. First, check if there is a power failure in the utility grid by checking other electrical devices. Second, ensure that the AC circuit or AC breaker is properly connected. Finally, verify that the phase sequence of the AC cables is correctly connected, and the neutral wire and PE cable are firmly connected.
M
Mariah AdkinsSep 4, 2025
What does 'IFan Fail' mean on my Goodwe SDT G2 Inverter?
- L
  Lori PittmanSep 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.
K
Kathleen ChungSep 3, 2025
Why is my Goodwe Inverter showing 'AFan Fail'?
- M
  Matthew BellSep 3, 2025
  If your Goodwe Inverter displays 'AFan Fail', it indicates a fault in all of the inverter's fans. Restart the inverter and check whether the inverter can work normally. Also, make sure that the fans are working properly and are not covered or blocked.
D
Daniel RodriguezSep 2, 2025
What does 'DC Bus High' mean on my Goodwe SDT G2?
- L
  lbartonSep 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.
K
Kimberly GoodSep 1, 2025
What to do if my Goodwe SDT G2 displays 'DC inject High'?
- M
  Michael HowardSep 1, 2025
  If your Goodwe Inverter shows 'DC inject High', it means the DC injection exceeds the allowed range. Check whether the software version is the latest one. Restart the inverter and check whether the inverter can work properly.
A
Ashley NicholsAug 31, 2025
What does 'Ground I Fail' mean on my Goodwe Inverter?
- H
  holly18Aug 31, 2025
  If your Goodwe Inverter displays 'Ground I Fail', it indicates that the input insulation impedance to the ground is decreasing during operation. Check if the inverter's working environment meets the requirements; for example, high humidity on rainy days can cause this. Also, ensure that the components and the AC side are properly grounded.
M
Mr. Brent FrostAug 29, 2025
What does 'ARC Fault' mean on my Goodwe Inverter and how to fix it?
- C
  Caitlin McdonaldAug 30, 2025
  If your Goodwe Inverter is showing an 'ARC Fault', it could be due to the PV string cables arcing or being in poor contact. Check whether the PV terminals and cables are connected properly. If the fault occurs frequently, contact after-sales service.

Goodwe SDT G2 Series Specifications

General

Number of MPPT	2
AC Frequency	50/60 Hz
DC Switch	Yes
Protection Degree	IP65
Nominal AC Voltage	230V
Communication	RS485
Operating Temperature Range	-25°C to 60°C
Model	SDT G2 Series

Summary

About This Manual

Applicable Models

Lists the inverters covered by this user manual.

Target Audience

Defines the intended professional readership for the manual.

Symbol Definitions

Explains the meaning of warning and notice symbols used.

Manual Updates

Notes that the manual content may be updated without prior notice.

Safety Precautions

General Safety Guidelines

Outlines universal safety rules for inverter installation and operation.

DC Side Safety

Covers crucial safety measures specific to the DC electrical side.

AC Side Safety

Details safety precautions for the AC electrical connection.

Inverter Installation Safety

Addresses safety considerations during the physical installation process.

Personnel Safety Requirements

Specifies the necessary qualifications and protective measures for personnel.

Product Introduction

Application Scenarios

Describes the typical usage environments and configurations of the inverter.

Supported Grid Types

Lists the various types of electrical grids the inverter can connect to.

Inverter Appearance Overview

Provides a general overview of the inverter's physical design and features.

Check and Storage

Pre-Receiving Inspection Procedures

Steps to verify product condition and model before accepting delivery.

Package Contents (Deliverables)

Details all items included in the inverter package.

Storage Environment Guidelines

Recommends conditions for safe storage of the inverter.

Installation

Installation Site Requirements

Specifies environmental and structural conditions for proper installation.

Inverter Installation Process

Outlines the steps and considerations for mounting and installing the inverter.

Electrical Connection

Electrical Connection Safety Precautions

Critical safety measures before and during electrical connections.

PE Cable Connection Procedure

Step-by-step guide for connecting the protective earth (PE) cable.

PV Input Cable Connection

Instructions for connecting the DC input cables from PV modules.

AC Output Cable Connection

Guidance on safely connecting the AC power output cable to the grid.

Communication Cable Connection

Procedures for connecting communication cables for system monitoring.

Equipment Commissioning

Pre-Commissioning Checklist

Essential checks to perform before powering on the equipment.

Inverter Power-On Procedure

Sequence for safely energizing the inverter and connecting to the grid.

System Commissioning

Indicator and Button Functions

Explains the meaning of LEDs and buttons on the inverter.

LCD Parameter Configuration

Guide for setting inverter parameters using the LCD interface.

App-Based Parameter Configuration

Instructions for configuring the inverter via a mobile application.

Maintenance

Inverter Power-Off Procedure

Steps to safely disconnect power from the inverter for maintenance.

Inverter Removal Procedure

Instructions for safely detaching and removing the inverter.

Inverter Disposal Guidelines

Information on environmentally sound disposal of the inverter.

Troubleshooting Faults

Advice on diagnosing and resolving common inverter issues.

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