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Veikong VFD

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

Steps to follow:

  1. Connect power to the Gateway.
  2. Connect RS-485.
  3. Final checks.
  4. Power on the system.
  5. Configure the Veikong VFD-500-PV Solar Inverter Serial Parameters.
 
                                   Veikong VFD-500-PV Solar Inverter Connection Setup
External Connection E
Internal Connection I
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

NameDescriptionParameterDefaultRequired
Serial AddressSerial Slave IDP30.0111
Serial Baud RateBaud RateP30.023 = 9600bps3=9600bps
Serial Bytes ConfigCommunication settingsP30.030 = 8 bits, no,10 = 8 bits, no, 1
 Serial Protocol
Communication ProtocolP30.000=Modbus0=Modbus

                                          Remote Control Setup

                  
Name DescriptionParameterDefaultRequired 
Operation Command Source (AUTO, REMOTE)Determines the operation frequency source in the “AUTO, REMOTE” mode.P00.060 2
Master Frequency Command Source (AUTO, REMOTE) Determines the master frequency source in the “AUTO, REMOTE” mode.P01.000 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.

First Time Account Setup
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