Why is my Goodwe SDT G2 Inverter showing 'PV Over Voltage'?
If your Goodwe Inverter displays 'PV Over Voltage', it means that too many PV modules are connected in series, causing the open-circuit voltage to exceed the operating voltage. Check whether the PV string input voltage is consistent with the value displayed on the LCD and meets the maximum input voltage requirements.
What causes 'Fac Fail' on a Goodwe SDT G2 Inverter?
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.
What does 'Vac Fail' mean on my Goodwe SDT G2 Inverter?
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.
What to do if my Goodwe Inverter displays 'Isolation Fail'?
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.
How to fix an 'Over Temperature' error on my Goodwe SDT G2?
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.
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 |
Lists the inverters covered by this user manual.
Defines the intended professional readership for the manual.
Explains the meaning of warning and notice symbols used.
Notes that the manual content may be updated without prior notice.
Outlines universal safety rules for inverter installation and operation.
Covers crucial safety measures specific to the DC electrical side.
Details safety precautions for the AC electrical connection.
Addresses safety considerations during the physical installation process.
Specifies the necessary qualifications and protective measures for personnel.
Describes the typical usage environments and configurations of the inverter.
Lists the various types of electrical grids the inverter can connect to.
Provides a general overview of the inverter's physical design and features.
Steps to verify product condition and model before accepting delivery.
Details all items included in the inverter package.
Recommends conditions for safe storage of the inverter.
Specifies environmental and structural conditions for proper installation.
Outlines the steps and considerations for mounting and installing the inverter.
Critical safety measures before and during electrical connections.
Step-by-step guide for connecting the protective earth (PE) cable.
Instructions for connecting the DC input cables from PV modules.
Guidance on safely connecting the AC power output cable to the grid.
Procedures for connecting communication cables for system monitoring.
Essential checks to perform before powering on the equipment.
Sequence for safely energizing the inverter and connecting to the grid.
Explains the meaning of LEDs and buttons on the inverter.
Guide for setting inverter parameters using the LCD interface.
Instructions for configuring the inverter via a mobile application.
Steps to safely disconnect power from the inverter for maintenance.
Instructions for safely detaching and removing the inverter.
Information on environmentally sound disposal of the inverter.
Advice on diagnosing and resolving common inverter issues.
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