What is a decent spindle relay ?

[John11668]

Following on from my recent query about unwanted spindle pulsing, I will take advice from there and get a separate spindle relay.
I would like one which is robust but gives me the opportunity to vary speed so will need to provide a 0-10v signal to the VFD.

I did buy a CP0-10V https://www.cnc4you.co.uk/Breakout-b...Pump?search=cp but it did not live long.
I don't know whether it failed , or whether I broke it , but if I ask them then it is bound to be the latter. Not sure if I would fancy the same again.

What other options would folks suggest ?

Maybe as part of the discussion I will raise an issue which occurred yesterday when VFD came up with 0PF2 (lost phase fault) whenever I stopped the spindle . It was stuck at 99.9hz and my manual pot seemed to be reluctant to turn it down. I reckon the pot had gone on the blink and by working it back and forth a bit I got it to control again.
Maybe there is a better solution than a cheap wire wound pot????