Configuring Deye/SunSynk/Sol-Ark inverter

Connect and configure Deye/SunSynk/Sol-Ark inverters

Overview

SolarAssistant connects to these inverters via a physical cable. It does not use or integrate with the WiFi dongle you might already have. You can set your inverter settings from SolarAssistant, but note certain inverter models have a read only RS485 port due to the inverter firmware. Please see the table below for detail:

Supplier	Model	Setting adjustments
Deye SunSynk Turbo Energy	5kW and 8kW single phase	✓ All ports
	16kW single phase	✓ RS232/WiFi port only
	8kW and 12kW 3 phase	✓ RS232/WiFi port only
	5kW to 50kW 3 phase high voltage	✓ All ports
Sol-Ark	8kW, 12kW	✓ All ports
Sol-Ark	15kW	✓ RS232/WiFi port only

Step 1 - Connect inverter monitoring cable

These inverters have two ports that can be used for monitoring. You can connect multiple inverters to a single SolarAssistant device as long as the inverters are configured as a parallel installation. Each inverter will require it's own USB cable. When connecting multiple inverters, SolarAssistant will show a combined view while still making individual inverter available.

Option A - Inverter WiFi/RS232 port

A USB serial cable can be plugged into WiFi RS232 port located on the bottom of the inverter. This is a normal USB serial cable available from most electronic stores.

When using this option, you will not be able to use the standard Deye/SunSynk/Sol-Ark dongle as the dongle can only be connected to this port.

Deye RS232 DB9 interface Deye WiFi RS232 port

Option B - Inverter RS485 port

A purpose built USB RS485 cable can be plugged into the RS485 port located on the inside the inverter. This is an RS485 cable with a specific RJ45 pinout that can be purchased in our online store.

If you buy any random USB RS485 RJ45 cable on Amazon, Ebay, Takealot, etc. which doesn't specifically state that it supports the Deye inverter, it will most likely not work.

Deye RS485 cable Deye RS485 port

The labelling of the RS485 monitoring port is sometimes not intuitive. Please see the list below for the correct port.

Deye/SunSynk/Turbo Energy 5K

Note the latest 5kW models doesn't have a separate CAN port. The BMS port is used for SolarAssistant monitoring and battery CAN communication at the same time. See the 2 in 1 BMS port

Deye/SunSynk 8K

Deye/SunSynk 16K

Note with the latest 16kW models/firmware the BMS port is used for SolarAssistant monitoring and battery CAN communication at the same time. See the 2 in 1 BMS port

Deye/SunSynk 3 phase

Note with the latest 3 phase models/firmware the BMS port is used for SolarAssistant monitoring and battery CAN communication at the same time. See the 2 in 1 BMS port

Sol-Ark 8k

Sol-Ark 12k

Sol-Ark 15k and 12k Outdoor

The BMS port is used for SolarAssistant monitoring and battery CAN communication at the same time. See the 2 in 1 BMS port

Step 2 - Configure SolarAssistant to connect to a Deye/SunSynk/Sol-Ark

On the SolarAssistant configuration page, select "Deye, SunSynk, Sol-Ark" as your inverter model.

Select the USB port where your inverter is connected. If you have multiple inverters, you need to multi-select multiple USB ports.

Click connect: