Hi @U007D
As a complete beginner to CNC and VFDs, I went with the Hitachi too for same reason @TMToronto mentioned - apparently the manual is much better than what comes with the cheaper Asian versions. I’ve been able to (slowly) read through parts that seem relevant and mostly be able to make sense of it. You might find these features of the Hitachi helpful (probably the main ones for me so far):
- pretty clear wiring diagrams
- Sensorless Vector Control. Better low-end torque. CNCDepot recommends the Hitachi for their FM series spindles for that very reason https://www.cncdepot.net/product-page/fm-series-spindles
- The “Spindle Pause Feature” thanks to @Aiph5u and @Alphonse . Hitachi VFD Connection - #29 by Aiph5u
@MikeH started a great post which was basically what allowed me to consider the Hitachi option. Hitachi VFD Connection
I’ve been able to go from zero knowledge to a basic working set-up, so for me, at least, I think the Hitachi was worth it, and seems to be a better option for any possible future upgrades. Of course, this is my first VFD ever, so I’m no expert!