Configuring a custom VFD and spindle

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey all,

I just got a private message of someone wanting to use a H100 VFD, asking if it is supported by Onefinity. The answer is, the settings for the compatible V70 VFD are in the 1.0.9 source code but no entry to select it as ‘tool-type’ .

What you can do easily and at once on your Onefinity Controller is create a custom ModBus VFD in the Tool Configuration Tab .

The H100 is compatible with the V70, so you can use the V70 settings to create a custom VFD program in the Onefinity Controller. The V70 settings needed to achieve this are shown here.

Further Reading

@Aiph5u

Explanation: Every VFD that supports ModBus communication protocol should have a chapter in its technical documentation that describes the addresses and data that it uses to receive commands from the CNC controller over the serial line or to report its condition or errors back in the other direction. In your VFD manual, you find them under “Chapter 9 Communication protocol”. Every VFD should have such a description. Unfortunately, they are not standardized. But with this documentation, you can tell the Onefinity Controller which code is used for let the spindle run, let it stop, set the speed, report the speed, etc., by entering the values found in the VFD documentation. The values in the table I gave you above are the values your VFD uses, they were just translated from hexadecimal to decimal. If you enter them the way it is described under Custom ModBus VFD, your Onefinity Controller will be able to communicate with your VFD.