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Messages - ianober

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11
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 11:56:32 PM »
When I check the normally closed wire voltage and the sensor LED is OFF, voltage output is 0V ion the normally closed wire.  When I rotate the spindle and the sensor LED is on I get 5V output on the normally closed wire.  Without the 5V regulator I would get about 22V.

12
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 11:54:48 PM »
In Pic 2 your can see it, grounded to the 24 volt output terminal block.

13
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 11:21:10 PM »
For some reason attachments are not working for me, Ill keep trying.

Finally, man, I am having one hell of a night.

14
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 11:13:17 PM »
ok Rich, check the settings and all looks good.  Here are some pics and the XML file.

15
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 09:29:00 PM »
So Rich, I hooked up the sensor to the 24 volt supply on my driver board.  The output of the the NC wire when the sensor is activated was ~22volts, a little high.  So I got a small regulator from Radio Shack and stepped the output down to 5 volts exactly.  I checked pin 15 with everything powered up and spun the spindle till the sensor LED came on and the pin was getting 5 volts exactly.  But when I went in the Mach 3 Diags the LED was not lighting up.  I tried this on both the Timing option and the Limit Option.  Do I have something configed wrong in Mach?  I tried reading in the manual to no avail for setup info, perhaps I missed something.

16
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 07:18:58 PM »
Yeah, thats how I got it hooked up Rich and Mach3 wasn't seeing anything.  I will do like you said and see if there is any voltage coming out of the 2 or 4 wire when the spindle LED activates when I get home.  If it is more than 5 volts then perhaps Mach3 does not see it.

17
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 06:39:39 PM »
I see your point Rich.  I also gathered from the diagram that one of the 4 or 2 wires needs to be grounded back to the negative.  Well that was not the case in my setup.  I have one of those wires terminating in the 15 port.  Should I run a jumper wire from the 15 port back to the 12 V power supply ground to complete the circuit?  I was thinking that is why I am not getting a reading.

18
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 06:22:59 PM »
Do you think that it matters that the ground from my driver board and the ground from my sensor power supply are not shared?  The driver board is powered by its own supply and the sensor is being powered by a converted PC power supply.

19
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 04:40:05 PM »
To add, the sensor I have is a proximity sensor.  Model number IS12-Y4-N-OC-DC.  I looked up the specs here: http://eurospecdirect.com/DataSheet/cs12_sensor.pdf  It looks like either of the NC or NO wires, which ever I am using, needs to be grounded.  It also looks like the sensor can take 24 volts so that means I can use my driver board as it has a 24 volt output for a fan.

20
General Mach Discussion / Re: RPM and counting ?
« on: April 02, 2010, 01:10:50 PM »
There is a small strip of steel that has been screwed onto the spindle so it reads each revolution.  I have the pins configured properly as far as I know.  As I rotate the spindle the sensor is picking up the strip mounted on the spindle so I know the sensor is working.  It has a little LED on the back of it that lights up when the spindle plate passes.  The problem is that the signal is not getting into Mach3.

As I said before I am using 2 different power supplies, is this a problem?  I am using a separate PC power supply for the spindle sensor (12V) and I am using my driver board on its own.  The driver board does not have a 12 volt output, thats why I need the PC power supply.  My question I guess is does the ground need to be shared between the 2 power supplies for this setup to work?

I dont have my sensor info in front of me but I will post it ASAP.

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