The device will have Rx and Tx connectors to connect to the VFD terminals with the same labels. There are a couple ways you can do this, but the recommended way would be to use an FTDI USB device which converts a USB to a serial com port. Connect the RX and TX lines to your computer. net 3.5 framework and install it: Follow the pdf that comes with the library file, but here is a synopsis of what you need to do (I also added a lot more information that may be useful during this process as the manual does not cover the main connections that need to be done): You will need to program your VFD so that it knows how to communicate with mach3 and the computer (go into the programming mode of the VFD and change these parameters): - PD001 - value 2 - Enables with communication aspect of the VFD - PD002 - value 2 - Enables frequency control from the communcations port - PD163 - value 1 - VFD address - PD164 - value 1 - Baud rate of 9600 (speed of the communication) - PD165 - value 3 - 8N1 RTU - 8 bits (that's the size of the word that gets communicated), N (No parity or no error checking) and 1 (1 stop bit) Copy the dll file to the PlugIns folder of mach3. You can find this file at the mach3 support forum here: You will also need to download the Microsoft. The first thing you will need is the dynamic link library to pair with mach3 called the Huanyang VFD Mach3 PlugIn. The following are instructions on how to connect the VFD to Mach3 via this RS-485 serial connection. You will need to connect the VFD to the computer via a serial conection (in this case, it is the RS-485 protocol). However, you can connect the VFD to the computer so the CNC control program can control the spindle during the CNC Machine operation. The control panel has the ability to control all aspects of the spindle including Speed, Torque, limits, etc. The VFD can be controlled independently using the control panel on the VFD. It is not necessary to connect the spindle VFD (Variable Frequency Drive also called an Inverter) to the computer or CNC motion electronics. How do I connect my spindle to mach3 so mach3 can control it Current Solution
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