CNC spindle only runs at a single speed

So in 2018 we got a Laguna IQ CNC which has worked well for us. We have had some issues though where we change feeds and speeds and the router does not seem to work as predictably as we expect. Haven’t thought much of it until now when increasing the RPM and feedrate in CAM felt like it only increased feedrate. After some research I believe our router is just running at a set speed and not listening to the G code. After researching some more I played around with settings on the controller and I seem to be able to use g code to select from a list of 8 speeds and I have set those speeds in the controller but the spindle seems to be ignoring it and running at the same speed as before.

Router is a Laguna IQ and the controller is a RichAuto A11E

Okay I was looking around and found a spindle display on the base unit of the machine. It displays in hertz and controls the rpm of the machine 100hz is 6000 rpm, 400hz is 24000 rpm but I would still like to be able to control it from the g code rather then manually set it with up and down arrows every time the machine is run.

We have a Laguna Swift 4x4, which also has the RichAuto CNC controller

Unfortunately there is no way to change spindle speeds with G Code

The RPM is the display value (400) * 60 (ac frequency)

So 400 x 60 = 24000

Fortunately, most things can be done at 24k RPM. I run all our tools at 24k. Certainly not optimal, but it works well for us

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You can probably hook up a potentiometer to the VFD and control the RPM that way. It’s easier to turn a knob than it is to press and wait for the frequency to change

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