Denford Triac VMC with ATC Conversion / Fix

**Chaz** · 09-07-2015

Originally Posted by i2i

it's fed with either 5v or 12v, pretty sure it's 5v. It's basically a three wire proximity switch, gnd, supply, and output. It will give you a switched output relative to the supply voltage.

So does that basically activate when the proximity sensor is happy? So its a locator device?

**i2i** · 09-07-2015

there's a point on the disc that is removed, this activates the sensor when it passes it. The logic in the macro needs to see this twice for one tool position

**Chaz** · 17-07-2015

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)?

**Clive S** · 17-07-2015

Chas I don't see an image!!

**i2i** · 18-07-2015

Gnd. Gnd
Step. This is a 5v logic level pulse and is normally a configured output from the parallel port that gives 2000 pulses for full output, which will be 10v dc.
Dir. This is a 5v logic level relay.
Run. This is a 5v logic level relay.

The board is basically a DC isolated frequency to voltage converter with two added relays

**dodgygeeza** · 18-07-2015

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.

Originally Posted by Chaz

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** · 18-07-2015

Originally Posted by Clive S

Chas I don't see an image!!

Sorry, I copied / pasted the post and was surprised as I could see it. Clearly no one else can ;p

See below.

**Chaz** · 18-07-2015

Originally Posted by 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.

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** · 18-07-2015

Originally Posted by 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

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** · 18-07-2015

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.