encoder power source

[SeanJ]

I have been speccing a motion system. 

We have to get it up and running ASAP so we've just ordered what I thought was all the necessary components.  I've started doing my wiring diagram now.

The first thing I noticed, is the encoder requires a power supply

780251-01 Quad Encoder NEMA 23, 1000 Counts/Rev

Electrical
Resolution ........................................... 1000 counts/revolution
Input voltage ....................................... 5 V ±10%
Input current........................................ 100 mA max (65 mA typical)
with no output load
Channel configuration......................... Quadrature A, B, and Index

My question is this:  I have a Danaher driver and the UMI 7772.  Can the encoder get it's power from either of these or do I need a seprate power supply.  Does the encoder come with its own ac/dc converter power supply?  Does anyone know of a recommeneded power supply?

Thanks,

Sean

[MahdiehG · Accepted solution]

Hi SeanJ,

You can indeed use your UMI 7772 to power your NEMA 23 Encoder. You will need to use a 24V power supply with this module as illustrated in this document (page 3): https://www.ni.com/docs/en-US/bundle/372324c/resource/372324c.pdf

Please refer to this link for information regarding your encoder: http://www.ni.com/pdf/products/us/cat_steppersandencoders.pdf

At the bottom of page 7 of this document you should see a table for the wire description of the encoder. As you can see the white wire will be your power input which you need to connect to your UMI 7772. Please refer to https://www.ni.com/docs/en-US/bundle/373359c/resource/373359c.pdf for more information on the UMI 7772. On page 39 you will see a table for the feedback connector pin assignment. Pin 4 will provide a +5V output to use for your encoder. Based on this you can connect the brown wire of your encoder to pin 1 of the UMI, the yellow wire to pin 14 and the COM wire to any of the digital ground lines.

I hope this helps , please let me know if you have any other questions.

[SeanJ]

Hi Mahdieh,

Thanks,that's exactly the info I was looking for. 

Sean