Veikong VFD-500-PV Solar Inverter

PostedAugust 12, 2024

UpdatedAugust 12, 2024

ByMbhoni Mashavani

This article describes the connection and setup of the Veikong VFD-500 Solar Inverter, to the Polar Monitoring Gateway.

Steps to follow:

Connect power to the Gateway.
Connect RS-485.
Final checks.
Power on the system.
Configure the Veikong VFD-500-PV Solar Inverter Serial Parameters.

Veikong VFD-500-PV Solar Inverter Connection Setup

1. Connect power to the Gateway.

A. Power the gateway from the external power supply.

Wire the Polar Gateway to a 12-24 V DC power supply. Connect the positive wire to the positive terminal and the negative wire to the negative terminal.

B. Power the gateway from the Veikong VFD-500-PV Solar Inverter.

Wire the Polar Gateway directly to the VSD. Connect the positive wire to the (+24V) terminal and the negative wire to the (COM) terminal.

2. Connect RS-485.

Wire the RS-485 cable to allow communication with the Polar Gateway. Connect A+ to 485+terminal,B- to 485- and G to GND.What is RS-485?

3. Final checks

Before switching on the Gateway and the device, make sure you have completed all the previous steps correctly.

Make sure the wiring is secure – no short circuits.
Ensure that all connections are secure on the device and the gateway.
Re-check the RS-485 twisted pair cable is correctly wired.
Check that the A and B are correctly wired to the device.

4. Power on the system

Now you are ready to go, you can now switch on the Polar Gateway and the Veikong VFD-500-PV controller.

5. Configure Veikong VFD-500-PV Serial Parameters

In order for the Gateway to correctly communicate with the Veikong VFD-500-PV controller, there will need to be some changes made to the communication parameters.

Serial Communication

Name	Description	Parameter	Default	Required
Serial Address	Serial Slave ID	P30.01	1	1
Serial Baud Rate	Baud Rate	P30.02	3 = 9600bps	3=9600bps
Serial Bytes Config	Communication settings	P30.03	0 = 8 bits, no,1	0 = 8 bits, no, 1
Serial Protocol	Communication Protocol	P30.00	0=Modbus	0=Modbus

Remote Control Setup

Name	Description	Parameter	Default	Required
Operation Command Source (AUTO, REMOTE)	Determines the operation frequency source in the “AUTO, REMOTE” mode.	P00.06	0	2
Master Frequency Command Source (AUTO, REMOTE)	Determines the master frequency source in the “AUTO, REMOTE” mode.	P01.00	0	7

You may now sign in to the Polar Portal to monitor the device remotely, the button on the right will take you through a setup process.