Spindle encoder wiring check

Todd Zuercher
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22 Sep 2017 12:34 #99254 by Todd Zuercher

Replied by Todd Zuercher on topic Spindle encoder wiring check

They always have an A and B pulse. They may or may not have an index pulse. But the encoder will have to be connected to the spindle in a 1:1 ratio in order to make use of the index pulse on the encoder. If your current setup has a separate index pulse you can continue to use it with the new encoder.

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timmert
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22 Sep 2017 14:26 - 22 Sep 2017 14:30 #99263 by timmert

Replied by timmert on topic Spindle encoder wiring check

Thanks Todd!
I need to find an encoder with index pulse, because it saves some work adding a second encoder for only the index pulse
It's 1:1 belt connection
'Edit

robokitsworld.com/sensors/encoders/rotar...-10000cpr-with-index

This would work I think

Last edit: 22 Sep 2017 14:30 by timmert.

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tecno
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22 Sep 2017 14:32 #99264 by tecno

Replied by tecno on topic Spindle encoder wiring check

Power Supply: 8-30V

You need 5VDC

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timmert
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22 Sep 2017 14:36 #99265 by timmert

Replied by timmert on topic Spindle encoder wiring check

Stupid question but not possible to use an external power supply instead of the power on the mesa board? ( i have 12v and 24v in my controls).

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tecno
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22 Sep 2017 14:38 #99266 by tecno

Replied by tecno on topic Spindle encoder wiring check

Mesa encoder input is 5V so you need 5V encoder not 8-30V.
You supply 5V from Mesa board to encoder

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timmert
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22 Sep 2017 14:39 #99267 by timmert

Replied by timmert on topic Spindle encoder wiring check

ah ok, the search continues haha

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Clive S
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22 Sep 2017 17:15 #99282 by Clive S

Replied by Clive S on topic Spindle encoder wiring check

Just a thought but the encoder might be putting 5V out even if the input is 8-30v.

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andypugh
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03 Oct 2017 12:47 #99809 by andypugh

Replied by andypugh on topic Spindle encoder wiring check

It might, or perhaps open-collector or similar. But the data sheet simply does not say.

There are some 24V NPN output encoders on eBay, those might work, if the encoder inputs have pull-ups.

eBay also has lots of very cheap 5V AB-only encoders for about £7. At that price using a keyway on the spindle for the Z-phase looks tempting.

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timmert
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10 Nov 2017 10:50 #101591 by timmert

Replied by timmert on topic Spindle encoder wiring check

Not sure if I understand it correctly. But would I need an encoder to my z axis?

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andypugh
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10 Nov 2017 11:02 #101593 by andypugh

Replied by andypugh on topic Spindle encoder wiring check

I am saying that you can add extra hardware to supply an index pulse entirely separately from the existing encoder.

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