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Proface HMI “Modbus RTU” Danfoss FC51 Tutorial

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FC51 inverter with special design for close installation to save maximum space. The outstanding typical features of Danfoss inverters are still maintained. Compact design The VLT® Micro is 40% more compact than its class of inverters.

Today will guide you to use HMI Proface to directly control Danfoss FC51 inverter by Mobdus communication through RS485 port integrated on FC51.

Danfoss FC51 & GP4402WW “Connection Diagram”

Danfoss FC51 Modbus Parameters Settings

In addition to the basic parameters of the inverter (frequency, voltage, current…) we need to install the following communication parameters

Control Registers Address
Note: GP4402WW HMI Address = “400001 (dec) + Device Address”

>>> Motor Control Address = 400001 + 49999 = 450000

  • Set Word 450000 = 47C (hex) or 1148 (dec) >>> Forward Run
    = 847C (hex) or 33916 (dec) >>> Reverse Run
    = 43C (hex) or 1084 (dec) >>> Stop
    = 4BC (hex) or 1212 (dec) >>> VFD Reset

>>> Frequency Setting Address = 400001 + 50009 = 450010
>>> Reference Set = 0 to 16384(dec) ~ (0 to 100%)

Monitoring Registers Address

Proface GP4402WW Modbus Configuration

We need to set the same communication parameters as installed in Danfoss FC51

HMI Programming

+ Control Panel

+ VFD “Auto ON” bit

+ VFD “Running” bit

+ VFD “Alarm” bit

+ VFD Reset Alarm

+ Frequency Setting

+ Motor Forward Run

+ Motor Reverse Run

+ Stop Command

+ Frequency Output

Video Tutorial


Related Software and Documents

>>> Download GP-ProEX for HMI Proface Programming Software

>>> Download Danfoss FC51 Programming Guide PDF

>>> Download Danfoss FC51 Design Guide PDF

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If you have any questions about making the connection between HMI Proface and Danfoss FC51 VFD, please comment below the article, will answer you as soon as I read the comment.

Best Regards!

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  • I followed the instructions and I am getting an error message as soon as I turn on the HMI, “received data has been framing error”. I have double-checked everything. The shielded two conductor wire is only 2 feet long. Do you have any suggestions?

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