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:
- Connect power to the Gateway.
- Connect RS-485.
- Final checks.
- Power on the system.
- Configure the CFW11 Serial Parameters
WEG CFW11 Connection Setup
1. Connect power to the 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
- 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
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 | 0=9600 | 0=9600 |
| Data Format | Communication settings | P0311 | 3=8bits,no,2 | 0=8bits,no,1 |
| Serial Protocol | Modbus Communication protocol | P0312 | 2=Modbus RTU | 2=Modbus RTU |
| Master Frequency Command | Start/Stop the VSD Remotely | P0-20 | 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.