How can we help?
< All Topics

WEG CFW11 Variable Speed Drive

This guide will show you how to connect the Polar Monitoring Gateway to the WEG CFW11 Variable Speed Drive. It will also take you through the setup and parameters required on the WEG CFW11 to ensure communications to the Polar 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 CFW11 Serial Parameters

WEG CFW11 Connection Setup

WEG CFW11 VSD - Wiring Diagram
Wiring Diagram
1. Connect power to the Gateway.
Power Polar Gateway

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.

2. Connect RS-485.

Wire the RS-485 cable to allow communication with the Polar Gateway. Connect  A+ => B+ (1) and B- => A- (2).

3. Final checks
Before you switch on the Gateway and the device make sure you have done everything correctly in the previous steps.
  • Make sure the wiring is secure – no short circuits.
  • Check if the power cables are not loosely wired to the Gateway.
  • Check if the power cables are not loosely wired to the device.
  • Re-check the RS-485 twisted pair cable is correctly wired.
4. Power on the system

Now you are ready to go, you can now switch on the Polar Gateway and the WEG CFW11.  

5. Configure CFW11 Serial Parameters
In order for the Gateway to correctly communicate with the WEG CFW11 controller, there will need to be some changes made to the communication parameters. 

Note: It is critical to change the default settings to reflect the table below.

Serial Communication Setup

Serial AddressSerial Slave IDP030811
Serial Baud RateBaud RateP03100=96000=9600
Data FormatCommunication settingsP03113=8bits,no,20=8bits,no,1
Serial ProtocolModbus Communication protocolP03122=Modbus RTU2=Modbus RTU
Master Frequency CommandStart/Stop the VSD RemotelyP0-2001

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.

Table of Contents
Copyright © 2023 Polar Monitoring