Spindle Frequency?

[Danny Barber]

I bought and installed a new 3hp water-cooled spindle with an inverter to run it. Inverter is https://www.valinonline.com/products/esv222n02yxb . Now whenever I switch the spindle on it triggers my limit switches (in Mach3) and I can only reset it when the spindle is not running. Would adding a line reactor to the inverter help? Spindle and limit switch wiring is all shielded and properly grounded.

I'm virtually at a standstill. Any help?

[Ole Anderson]

A water cooled spindle? What the heck is that? Any pictures?

[David Falkner]

Is your VFD in the same enclosure with your other electronics, Danny? It could be noise in general from the VFD. Are the limit switches mechanical or electronic (proximity) sensing?

David

[Art Mann]

A line reactor is certainly a good idea. I can't imagine what would be tripping the limit switches if it isn't dirty power. Variable frequency drives are notoriously noisy, electronically.

[David Falkner]

A water cooled spindle? What the heck is that? Any pictures?

A lot of us use water cooled spindles. They're quiet, cool running, and efficient. Ours is a 3kW (4HP).

032 - Z axis complete.jpg

David