deye – Qilowatt https://docs.qilowatt.eu/en/ Thu, 30 Oct 2025 10:03:53 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://docs.qilowatt.eu/wp-content/uploads/2025/08/cropped-cropped-527027273_25002846699317774_491633004174988328_n-32x32.webp deye – Qilowatt https://docs.qilowatt.eu/en/ 32 32 Deye / Sunsynk / Sol-Ark https://docs.qilowatt.eu/en/docs/deye-sunsynk-sol-ark/ Thu, 28 Aug 2025 17:37:08 +0000 https://docs.qilowatt.eu/docs/deye-sunsynk-sol-ark/ Introduction
Deye, Sunsynk and Sol-Ark inverters can be connected to the Qilowatt system using a Modbus module. This guide explains the necessary settings, wiring connections, and how to start the module.

Prerequisites

• A technician has verified that the inverter is operating correctly
• The inverter is able to charge batteries from the grid and, if permitted, sell energy back to the grid
• Battery maximum power limits are taken into account
• A Modbus R1 or R2 module is available
• Required tools and a communication cable (CAT5 or CAT6)

Step-by-step Guide

Inverter settings

1. Open Deye inverter menu.
2. Configure the following settings:
• Modbus SN (address): 01
• Master/Slave: Slave
• Modbus baudrate: 9600
• Time of Use: activated

Installing the module

1. Install the MODBUS module according to the installation manual.
2. Connect the communication cable (CAT5 or CAT6) from the module’s RS485 A and B terminals to the corresponding inverter port.

⚠️ Important!
• If the inverter mainboard has a DRM port:
Connect the MODBUS R2 module terminals A and B to the inverter BMS port pins:
• Pin 1 → B+
• Pin 2 → A-
If the BMS port is already in use by the battery, use the Y-splitter included in the installation kit.

• If the inverter does not have a DRM port:
Connect the MODBUS R2 module terminals A and B to the inverter Modbus port pins:
• Pin 7 → A-
• Pin 8 → B+

Starting the module

1. Switch on the circuit breaker of the MODBUS R1 / R2 module (or insert the fuse).
2. Check if the module’s white LED indicator starts flashing rapidly.
3. Connect the module to your home WiFi network → Connecting the device to WiFi.
4. Place the module in a location with a strong WiFi signal.
5. If needed, use a WiFi range extender.

Result

The inverter is successfully connected to the Qilowatt system. The Modbus module transmits data and enables device control and optimization.

If it Doesn’t Work

• If the LED indicator does not light up, check the connections and circuit protection.
• If communication does not work, verify that the Modbus address and baudrate are set correctly.
• If the module does not connect to WiFi, follow the guide → Resetting WiFi settings
• If the issue persists, contact our team: support@qilowatt.eu.
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