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Author Topic: Slotted Opto Schematic  (Read 4398 times)

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Slotted Opto Schematic
« on: April 10, 2015, 04:41:23 AM »
I need a schematic of how to wire in an Slotted Opto to read the pulses from my Spindle encoder disc.
I will use Smooth Stepper with Motion Control Break out board.

Can someone help please ?

George
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Re: Slotted Opto Schematic
« Reply #1 on: April 11, 2015, 12:56:27 PM »
I need a schematic of how to wire in an Slotted Opto to read the pulses from my Spindle encoder disc.
I will use Smooth Stepper with Motion Control Break out board.

Can someone help please ?

George
Wot no helpers :-(
One step at a time!

Offline stirling

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Re: Slotted Opto Schematic
« Reply #2 on: April 11, 2015, 01:23:23 PM »
got a datasheet link for the opto?
Re: Slotted Opto Schematic
« Reply #3 on: April 11, 2015, 02:05:08 PM »
Hi Stirling, PDF Attached.

Many thanks

George
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Offline stirling

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Re: Slotted Opto Schematic
« Reply #4 on: April 12, 2015, 05:35:38 AM »
Hi George - see attached. This assumes 5V signaling. This is about as simple as you can do it - see how you get on - but you may need the output shaping with something like a Schmitt trigger.
Re: Slotted Opto Schematic
« Reply #5 on: April 12, 2015, 11:51:08 AM »
Thanks Stirling,

Here is the circuit associated with one of the input pins on the Motion control card.

If I'm correct, all the inputs have Schmdt trigger control, so by hooking up your opto circuit to one of the input pins should do the trick.
Is this arrangement correct.

I was confused because Arturo has a C3 index pulse board specifically for reading pulses from the spindle when threading on the lathe. I can only assume then that his Break out boards do not have the same Schmdt trigger arrangement on his input pins. Wrong or right ??

Thanks

George
« Last Edit: April 12, 2015, 11:53:47 AM by Len-Tikular »
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Offline stirling

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Re: Slotted Opto Schematic
« Reply #6 on: April 12, 2015, 12:38:08 PM »
Thanks Stirling,

Here is the circuit associated with one of the input pins on the Motion control card.

If I'm correct, all the inputs have Schmdt trigger control, so by hooking up your opto circuit to one of the input pins should do the trick.
Is this arrangement correct.

I know nothing about that card but your diagram looks fine.

I was confused because Arturo has a C3 index pulse board specifically for reading pulses from the spindle when threading on the lathe. I can only assume then that his Break out boards do not have the same Schmdt trigger arrangement on his input pins. Wrong or right ??

Can't help you there George because I know nothing of the C3 board.