GoodWe SDT G2 Series Solar Inverter Quick Installation Guide

01 Safety Precautions

General Disclaimer

• This quick installation guide is subject to change due to product updates or other reasons. It cannot replace product labels or safety precautions in the user manual unless specified. All descriptions are for guidance only.
• Read the quick installation guide and user manual thoroughly before installation to understand the product and precautions.
• All installations should be performed by professional and knowledgeable technicians familiar with local standards and safety regulations.
• Check deliverables for correct model, complete contents, and intact appearance. Contact after-sales service if any damage or missing components are found.
• Use insulating tools and wear personal protective equipment (PPE) for personal safety. Wear anti-static gloves, clothes, and wrist straps when touching electronic devices to protect the inverter from damage.
• Strictly follow the installation, operation, and configuration instructions in this guide and user manual. The manufacturer is not liable for equipment damage or personal injury due to non-compliance. For warranty details, visit http://www.goodwe.com.

Safety Disclaimer

! Warning

DC Side

1. Ensure component frames and bracket system are securely grounded.
2. Connect DC cables using provided connectors and terminals. The manufacturer is not liable for equipment damage if other connectors or terminals are used.
3. Ensure DC cables are connected tightly and securely.
4. Measure DC cable with a multimeter to avoid reverse polarity connection. Ensure voltage is within the permissible range.

AC Side

1. Voltage and frequency at the connection point must meet on-grid requirements.
2. An additional protective device (circuit breaker or fuse) is recommended on the AC side. The device's specification should be at least 1.25 times the AC output rated current.
3. The PE cable of the inverter must be connected firmly. Resistance between neutral wire and earth cable should be less than 100Ω.
4. Copper cables are recommended for AC output. Contact the manufacturer for aluminum cables.

Inverter Side

1. Terminals at the bottom of the inverter cannot bear much load to prevent damage.
2. Ensure all labels and warning marks are clear after installation. Do not deface, damage, or cover any label on the device.
3. Warning labels on the inverter are as follows:

Check Before Power ON

02 Product Introduction

Parts

4-10kw Inverter Components:

• 1. Indicator
• 2. LCD (equipped in some models only)
• 3. Button
• 4. PE terminal
• 5. Mounting Plate
• 6. PV Input Terminal
• 7. DC Switch
• 8. Ventilation valve
• 9. Communication Module
• 10. Smart Meter/RS485
• 11. DRED/Remote Shutdown
• 12. AC Output Port
• 13. Fan (equipped in some models only)

12-15kw Inverter Components:

• 1. Indicator
• 2. LCD (equipped in some models only)
• 3. Button
• 4. PE terminal
• 5. Mounting Plate
• 6. PV Input Terminal
• 7. DC Switch
• 8. Ventilation valve
• 9. Communication Module
• 10. Smart Meter/RS485
• 11. DRED/Remote Shutdown
• 12. AC Output Port
• 13. Fan (equipped in some models only)

Dimension

4-10kw:

• Height: 433mm
• Width: 354mm
• Depth: 147mm

12-15kw:

• Height: 433mm
• Width: 354mm
• Depth: 155mm

03 Inverter Installation

Packing List

The packing list includes various components such as connectors, cables, and mounting hardware. Note: 'N' indicates the number of actual accessories may differ depending on the model.

Space Requirements

Ensure adequate space around the inverter for ventilation and maintenance. Minimum clearances:

• Top: 300mm
• Bottom: 800mm
• Left: 200mm
• Right: 200mm
• Front: 300mm

Installation environment requirements:

• Operating Temperature: -30°C to 60°C
• Humidity: 0% to 100% RH
• Ingress Protection: IP65

Angle Requirements:

• The inverter can be mounted vertically or tilted up to 15 degrees. Mounting at an angle greater than 15 degrees is not recommended.

Installing the Inverter

Follow these steps for mounting the inverter:

1. Drill holes for mounting, avoiding water pipes and buried cables in the wall.
2. Attach the mounting bracket to the wall using appropriate fasteners.
3. Mount the inverter onto the bracket.

04 Electrical Connection

Connecting the PE Cable

Ensure the PE cable is connected securely to the grounding terminal. Use copper cable with a cross-sectional area of at least 4mm². The length of the cable (L) should be L1 + (1-2)mm. Tighten the M5 terminal screw to 1.2-2 N·m.

Connecting the AC Cable

Prepare the AC cable according to the specifications:

• 4-10kW: Cable diameter 13mm ≤ ∮ ≤ 18mm, cross-sectional area 4mm² ≤ S ≤ 10mm²
• 12-15kW: Cable diameter 18mm ≤ ∮ ≤ 25mm, cross-sectional area 6mm² ≤ S ≤ 16mm²

Follow these steps for connecting the AC cable:

1. Strip the cable to the specified length (75mm).
2. Assemble the connector components.
3. Insert the L1, L2, L3, N, and PE wires into the corresponding terminals of the connector.
4. Secure the wires with the provided screws, tightening to 0.6 N·m. Ensure proper connection of L1, L2, L3, N, and PE.
5. Connect the assembled AC cable connector to the inverter's AC output port.

Connecting the DC Cable

Prepare the DC cables:

• Cable diameter: 4-5mm
• Recommended cross-sectional area: 2.5mm² ≤ S ≤ 4mm²
• Stripping length: 7-8mm

Follow these steps for connecting the DC cables:

1. Prepare the DC connectors (positive and negative).
2. Crimp the terminals onto the DC cables.
3. Assemble the DC connectors.
4. Use a multimeter to measure the DC voltage and check the polarity of the connectors before plugging them into the inverter's PV input terminals (PV1, PV2). Ensure a 'click' sound indicates a secure connection.

Connecting the DRED Cable (6PIN)

Contact after-sales service for the DRED terminal if needed. DRED function is off by default; enable it via the SolarGo App if required.

Follow these steps for connecting the DRED cable:

1. Prepare the DRED cable (6.5mm stripping, 25mm overall length).
2. Assemble the 6-PIN connector components.
3. Connect the DRED cable to the connector and tighten the M2 screw to 0.3-0.4 N·m.
4. Connect the DRED cable to the inverter's DRED port.

DRED Cable Pinout:

Connecting Smart Meter and RS485 Cable (6PIN)

Follow these steps for connecting the Smart Meter and RS485 cable:

1. Prepare the cable (6.5mm stripping, 25mm overall length).
2. Assemble the 6-PIN connector components.
3. Connect the cable to the connector and tighten the M2 screw to 0.3-0.4 N·m.
4. Connect the cable to the inverter's RS485/Meter port.

RS485/Meter Cable Pinout:

Connecting Remote Shutdown/RS485 Cable (2 PIN)

Follow these steps for connecting the Remote Shutdown/RS485 cable:

1. Prepare the cable (6.5mm stripping, 25mm overall length).
2. Connect the wires to the 2-PIN connector.
3. Assemble the connector components.
4. Connect the cable to the connector and tighten the M3 screw to 0.6-0.8 N·m.
5. Connect the cable to the inverter's Remote Shutdown port.

Remote Shutdown/Meter Cable Pinout:

Installing the Communication Module

NOTICE: Remove the communication module using the unlock tool. The manufacturer is not liable for port damage if the module is removed without the unlock tool. Communication modules may have slight visual differences but are installed similarly. The following shows how to install a WiFi module.

05 Power On

Follow these steps to power on the inverter:

1. Connect the solar panels to the inverter's DC input terminals.
2. Connect the inverter to the AC grid.
3. Turn on the DC switch.
4. Turn on the AC breaker.

Power ON sequence:

• Turn on DC switch (1), then AC breaker (2), then the inverter (3).

Power OFF sequence:

• Turn off the inverter (1), then AC breaker (3), then DC switch (2).

Check the LED indicators on the inverter for status.

06 Commissioning

Commissioning via LCD

If the inverter is equipped with an LCD, select the country/region accordingly:

• Short press the button to navigate.
• Long press for 2s to confirm selection.
• Follow the on-screen prompts to set the country/region, inverter model (e.g., GW10KN-DT), and warehouse information.
• The system may default to '60Hz LV Default' after 10 seconds of inactivity or prompt for 'Set OK'.

Commissioning via SolarGo APP

Download the SolarGo App from Google Play or the App Store.

1. Connect your smartphone to the inverter via Bluetooth or Wi-Fi (within 10m for Wi-Fi, 5m for Bluetooth).
2. Open the SolarGo App and add the inverter. If the device is not listed, refresh the list.
3. Initial passwords: Bluetooth/WiFi: 12345678. For 4G/GPRS, use the QR code on the equipment or the last 8 digits of the inverter SN.
4. Navigate to 'Basic Setting' and configure parameters such as Safety Code, Time, Password, and Grid Type.

Monitoring via SEMS Portal App

Download the SEMS Portal App from Google Play or the App Store.

1. Create a plant by entering the plant name, email, address, and classification (e.g., Battery storage).
2. Input plant capacity and battery capacity if applicable.
3. Add equipment (inverter) by scanning the QR code or entering the SN manually.
4. Monitor energy generation, income, and other parameters through the app.

User Manual

For more detailed instructions, scan the QR code provided to access the SDT G2 Series User Manual.