Centroid Community CNC Support Forum

To answer cncsnw's question "Are you certain..." the answer is I'm not certain of anything with the input circuitry (obviously). I only thing I do get that is that there is 24v to the inputs section of the acorn board. So that the current flows from 24v thru my limit switches back to commo...

On further analysis I connected the DRV output from the VFD to Input 6 on the Acorn. I set Input 6 in the Wizard to VFDUpToSpeed . After restarting everything I checked the voltage from VFD - DRV to Common: 0v if spindle off, 24v if spindle on. Same voltages at Input 6: spindle off = 0v, spindle on ...

Answered my own last question use new v4.20 input: VFDUpToSpeed on an unused Input.

Now to select VFD output.

John

Thanks to all for the responses. To Gary, that's what I was after but I'm not sure of the details. From the Huan Yang VFD manual: It shows output terminals as: DRV Multi-Output 1 (Optical couple output) UPF Multi-Output 2 (Optical couple output) output ==> DC24V/100mA Multi-Output 3 (N/O or N/C) out...

Obviously you can hear or see if the spindle is rotating. But my question is specifically if or how you can tell via program code if the spindle is on. Seems Acorn neither knows or cares if the spindle is moving. With the power to the VFD/spindle off you can MDI "M3 S500" and Acorn will re...

Thanks all for the help.
Works fine now.
Got to study that Wizard some more!
Only doc I see specific to the wizard is acorn_wizard_input_output_plc_functions.pdf. Correct?

Just reading up on v4.20.1 now, I like the VCP editing capability.

John

Using Acorn CNC v.18 pro, report attached. Using MDI send this command: G1 X4 F80. Gantry moves correctly but the feedrate output at the top of the screen shows 100% 50 ipm. No matter what speed I send it's always 50 ipm. Tried the feed rate override icon on the VCP, doesn't change the speed. Also t...

Fantastic Marty, it works. I guess it should have been a clue having to hit "F" twice. I looked all over the documentation and could not find any explanation of those top and bottom lines. Where is that information? All I see is Alt-I to get to PLC Diagnostics screen but nothing else. Than...

Attached wizard input page and Alt-I screen. Am I correct that when sending "M3 S<rpm>" the associated relay should energize and the light come on? It does not. But if I key in CTRL ALT F after selecting #4 output the relay does come on. Actually I should say I have to press "F" ...

Marty, we're making progress. Turns out it's not the VFD parameters since I had all the same values you had. I did change to using your revised schematic FC to COM and FB to Spindle OK. But here is I think the main problem: When I jumped DCM to FOR and used a battery I got spindle movement. So I got...