Denford Triac VMC with ATC Conversion / Fix

[dodgygeeza]

I am not sure what you are going to do with this board, the CSMIO/IP-A does not have any step and direction output, the controller has a 0-10V output that goes to the spindle speed control. If you need isolation because the current spindle has no isolation, then you are better to just throw the spindle away and stick an inverter and ac motor in the system.

Hi, so update time. Mostly there now, busy wiring in the DC Drive input isolator. I just want to check, some of the wiring a bit uncertain about.

This is the board I am using, as recommended by i2i.

http://diycnc.co.uk/spindleV5x.pdf


On the board, I need to provide 24V DC, straight forward, I take from my 24V PSU rails.


I then need to provide the 0-10V output to the old DC drive, check, 2 wires, sorted.


I then need to provide GND, STEP, DIR and Run / Enable.


From my CS Labs unit IP-A, I get an Analog Output.


So, looking at the image below, I take from pin 7 (Analog Out 0) and pin 20 (Gnd) - do these go to the GND and STEP inputs on the board?

What do I use for DIR And Run / Enable then? Are these from my CS Labs unit (24V switched outputs)?

[Chaz]

I am not sure what you are going to do with this board, the CSMIO/IP-A does not have any step and direction output, the controller has a 0-10V output that goes to the spindle speed control. If you need isolation because the current spindle has no isolation, then you are better to just throw the spindle away and stick an inverter and ac motor in the system.

Ye, its just more money though that I dont need to spend.

Ill rather get this working, if someone can help with an isolation option / circuit and then later look to put in a higher speed spindle which will be useful for cutting the items I want to cut.

[i2i]

I am not sure what you are going to do with this board, the CSMIO/IP-A does not have any step and direction output

Chaz send an email to Roy and ask him if the dc-dc converter is 1:1. If so you can probably run the ipa 0-10 through it instead of the generated voltage from the diy cnc board. ( please check this with Roy first )

[Chaz]

Thanks - just done.

Will wire up to be manually set for speed until I get some options.

Could I use the 5V from the Encoder output terminals on the CS Labs unit to allow me to enable the board? I dont have any other 5V supplied that I can use.

[i2i]

remember no touching ground with those wires, and try not to touch the copper bits.....lol

[Chaz]

remember no touching ground with those wires, and try not to touch the copper bits.....lol

Ive taken that board out, not taking a chance with it until confirmed. Sorting home / datum switches now, a bit confusing. Home is X all the way to the left, Y all the way to the person but the datum plate is on the other side.

Is datum not home?

[Chaz]

Ok. clearly not although it uses switches called datum, that is what is confusing. The Triac usermanual confirms the same - home is correct as I have it now.

[Chaz]

Can anyone explain why, when the CS Labs unit has a fault condition, my machine basically drives both X and Y to the positions furtherest from home? How do I stop this from happening?

Also, spindle relay wired, connected to output 6 on the CS Labs digital output but spindle doesnt run. I try M3 and M4, I can see Mach 3 flashing that there is activation, but the actual relay (24V out on output 6) doesnt kick in.

[Chaz]

Actually, I think I know why in the first instance. I need to get enable to work via the controller. Currently the DER (Drive Enable Relay - which cuts power to the drives), is hardwired as its 0V 'on'. That said, why is something controlling it (ie, giving it reference to move), when there is a fault? Some type of failsafe?

[Chaz]

And we have life, although the motor output is being set manually at the moment and still need to sort my machine runs X Y positive when controller resets.