Goodwe GW15K-SDT-20 - User Manual

Other manuals for Goodwe GW15K-SDT-20

Quick Installation Guide22 pages

Questions and Answers

K
Kevin NewtonSep 9, 2025
What causes an Isolation Fail error on a Goodwe Inverter, and how can I fix it?
- C
  Christopher FieldsSep 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.
T
Timothy DoughertySep 8, 2025
Why is my Goodwe GW15K-SDT-20 showing an Over Temperature error?
- C
  Chelsea WallaceSep 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.
T
Thomas DeanSep 7, 2025
What to do if my Goodwe GW15K-SDT-20 Inverter shows a Utility Loss error?
- T
  Todd JacksonSep 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.
C
Crystal WatsonAug 22, 2025
What to do if my Goodwe GW15K-SDT-20 shows 'Utility Loss'?
- D
  daniel72Aug 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.
L
lisa03Sep 4, 2025
What does 'IFan Fail' mean on my Goodwe GW15K-SDT-20?
- F
  frankbrownSep 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
Thomas EstradaSep 3, 2025
Why is my Goodwe Inverter showing 'AFan Fail'?
- G
  Gabriela WhiteSep 4, 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.
R
Riley BlackSep 2, 2025
What does 'DC Bus High' mean on my Goodwe GW15K-SDT-20?
- K
  kvasquezSep 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.
T
Terry PetersSep 1, 2025
What to do if my Goodwe Inverter displays 'DC inject High'?
- J
  Joseph MartinSep 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.
C
Charles MartinAug 31, 2025
What does 'Ground I Fail' mean on my Goodwe Inverter?
- M
  mark93Aug 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.
Z
Zachary ColeAug 30, 2025
What does 'ARC Fault' mean on my Goodwe GW15K-SDT-20 and how to fix it?
- S
  Shane IbarraAug 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.

Summary

Safety Precautions

General Safety Guidelines

Provides essential safety rules for installation and operation, including PPE and manual adherence.

DC Side Safety

AC Side Safety

Inverter Installation Safety

Highlights safety warnings and symbols related to the physical installation of the inverter.

Personnel Requirements

Installation Guide

Installation Requirements

Details environmental, mounting, and angle requirements for installing the inverter safely and correctly.

Installation Angle Requirements

Installation Tool Requirements

Inverter Mounting and Installation

Physical Inverter Installation Steps

Electrical Connections

Electrical Connection Safety

Emphasizes critical safety warnings and protective equipment for electrical connections.

Grounding (PE) Cable Connection

Details the procedure and specifications for connecting the protective earth (PE) cable.

PV Input Cable Connection

Provides instructions and warnings for connecting the DC input cables from the PV array.

AC Output Cable Connection

Explains how to connect the AC output cable, including AC breaker recommendations.

Equipment Commissioning

Pre-Power On Checks

Lists essential checks before energizing the inverter and grid connection.

Power On Procedure

Describes the sequence for turning on the inverter's power switches.

System Commissioning and Settings

Inverter Parameter Settings via LCD

Guides on navigating the LCD menu for configuring inverter parameters.

Inverter Parameter Settings via App

Maintenance Procedures

Inverter Power Off Procedure

Details the correct steps to safely power down the inverter before performing maintenance.

Troubleshooting Common Issues

Offers guidance on diagnosing and resolving common inverter faults and errors.

Routine Maintenance Schedule

Technical Parameters

Model-Specific Technical Specifications

Detailed technical specifications for various inverter models, including input, output, and protection features.

Goodwe GW15K-SDT-20 Specifications

General

Model	GW15K-SDT-20
Rated Output Power	15000W
THDi	<3%
Protection Degree	IP65
Number of MPPT	2
AC Output Frequency	50/60 Hz
Rated AC Voltage	400 V
Power Factor	0.8 leading to 0.8 lagging
Operating Temperature Range	-25°C to 60°C
Humidity Range	0-100%
Communication	RS485/Optional: Wi-Fi, Ethernet
AC Output Voltage	400 V