Spindle encoder wiring check

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22 Sep 2017 12:34 #99254 by Todd Zuercher
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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22 Sep 2017 14:26 - 22 Sep 2017 14:30 #99263 by timmert
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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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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22 Sep 2017 14:36 #99265 by timmert
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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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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22 Sep 2017 14:39 #99267 by timmert
ah ok, the search continues haha

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22 Sep 2017 17:15 #99282 by Clive S
Just a thought but the encoder might be putting 5V out even if the input is 8-30v.

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03 Oct 2017 12:47 #99809 by andypugh
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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10 Nov 2017 10:50 #101591 by timmert
Not sure if I understand it correctly. But would I need an encoder to my z axis?

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10 Nov 2017 11:02 #101593 by andypugh
I am saying that you can add extra hardware to supply an index pulse entirely separately from the existing encoder.

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