Centroid Community CNC Support Forum

Acorn Bench Test was successful, update to Pro software and now...I have an area that I was going to bench test all the new stuff but, l I may move everything closer to the mill and try spinning the existing motors. In reality I have so many things to do that I should probably focus on cleaning thin...

The power supply that comes with Acorn is ONLY to be used for Acorn logic. Not contactors. Supply your own power supply for those. Please spend time studying the Acorn system schematic, if you want to do it right. Marty Is the Acorn system schematic online or does it come with the Acorn? The docs I...

I'm thinking about power supply requirements; The Acorn comes with a PS that provides 5vdc and 24vdc. I expect the 24 vdc can be used to supply contactors - I would like to know if there is a limit to how many. Should I expect to need dedicated power supply? What about 5vdc. I don't know what needs ...

Here is what I'm starting with...for those that like pictures. The original retrofit is bare bones and the current attempt is to get back to a system that is closer to industrial quality.

One of the reasons I would like to use 220 single phase is to reduce the number of voltages coming into the cabinet. The VFD may be in round two as I have a rotary converter - it's just noisey. What I'm hearing is that if you get a higher HP VFD it would be work on a 5HP motor... Acorn will be here ...

I have no understanding of post processors...I have one I used for Mach3 - I should open it up and take a look...however when I evaluate it what should I be looking at?

If I was going to look at VFDs what would you suggest for running single phase 220. Motor info The Motor is a General Numerics maybe a bit unusual 2.2 KW continuous 3.7KW 15 minutes 11amp Continuous 15 amp - 15 minutes 1500-8000 RPM 3 phase 4 pole Volts 200 Type A06B-1002-B600 #2000 I'll be reviewin...

Perhaps you should ask yourself under what circumstances you believe the spindle speed needs to be deadly accurate? You are talking about achieving a recommended surface speed at the cutter somewhere in a range of 2 or 3 to 1. Many VFDs can be set up to compensate for slip frequency so that the spi...

The spindle encoder on the Acorn is what enables rigid taping. It DOES NOT close close the loop with the VFD. If you have an encoder connected, Acorn will display the exact rpm the spindle is running, but it will not adjust the analog output to make the actual speed = programmed speed. If your VFD ...

I'm reviewing the doc for Acorn connections and am wondering about the P10 connection from Spindle encoder. If I add an encoder to the spindle this is what enables rigid tapping? Currently I have a Unidrive VFD running open loop and have an encoder I will add to be able to run closed loop vector - I...