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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 CFW500 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.
WEG CFW11 VSD RS-485

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

3. Final checks
Before you switch on the device make sure you have done everything correctly in the previous steps.
 
  • Make sure the power is OFF while doing the cable wiring.
  • Re-check if there are 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 Variable Speed Drive.
  • Re-check the RS-485 twisted pair cables is correctly connected A+ => B+ and B- => A-.
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

Name

Description

Parameter

Default

Required

Serial Address

Serial Slave ID

P0308

1

1

Serial Baud Rate

Baud Rate

P0310

9.6

9.6

Serial Interface Bytes Configuration

Communication settings

P0311

1

8bits,no,1

1

8bits,no,1

Serial Interface protocol

Communication protocol

 

 

 

Master Frequency Command

To start/stop the VSD from the Polar Portal

00-20

0

1

 

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.

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