If you need any safety/limit switches let me know I have a bucket full of industrial osiswitches by telemechanique.
I have a VFD on my M300 and have wired all the original switches through it tracing the wires is not hard the hard bit I found was working out how to get the VFD configured to work on the original switches
I pretty much started from scratch except for the existing limit / microswitches. The Harrison Group on groups.io has a file section that includes a typical diagram to set up for single phase, but it isn’t really that complex.
Here is my panel, I replaced the terminal blocks with some Weidmuler ones from RS. Schneider VFD from Inverter Supermarket. Old capacitor to provide pseudo three phase for coolant pump. 24 V contactor for emergency stop (along with a 24V power supply that provides power for the control circuits, and will power some LED lighting. I wanted the VFD in the panel, as once they are programmed there is no need to see them. To get it to fit I cut a section out of the panel and welded it so that I had somewhere to fix the VFD. You obviously need a VFD narrow enough to do this, as well as a VFD that doesn’t need side ventilation.
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Original estop button replaced, and pot added to allow speed control of VFD. Pilot light replaced with a light/ momentary switch. The momentary switch is used to latch the contactor on to power the VFD. So if there is a power cut or you hit the estop, you have to press this button to re-energise the VFD. There is also some start protection built into the VFD. Foot brake switch is wired to the VFD to trigger a coast stop. If you hit the brake, you don’t want the VFD fighting the brake with a ramp down time.
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