Hello, I know this question is way basic, but I have a custom-built second-hand machine and I am having a hard time contacting the spindle's producer.
So, the spindle is manufactured by HSD with the product number Y6162Y0029. The product manual shows 3 different speeds; 18000, 21000 and 24000 RPMs. The CNC controller has 7 stages of spindle speed S1-S7 (S1 being 3000, S2 6000, and so on, up to S7 at 24000 rpm)
This configuration is a little confusing for a beginner, I can not really tell what happens when using S1 to S4. Does it just stay at 18K within this range? I have not seen any spindles which can actually range from 3K to 24K RPMs, so what is the use of this 7 stage speed control? Or does it go below 18K but it is not recommended by the manufacturer?
Any insight on the subject is welcome!