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#1 perry p

perry p

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Posted 05 April 2011 - 03:55 PM

I have a project that requires the use of shaft encoders. I am buying a 1040 with a E1B snap on module. My question is will the E1B module work with a
differential encoder at 5 volts input or will I need to change my encoders?

Thanks

Perry
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#2 Emil

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Posted 05 April 2011 - 04:33 PM

Hi Perry,
No, for sure it will not work with 5V.
You can make simple converter (see attached) or you need ot find encoder with 24V PNP or NPN interface.
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#3 perry p

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Posted 05 April 2011 - 07:07 PM

Hi Perry,
No, for sure it will not work with 5V.
You can make simple converter (see attached) or you need ot find encoder with 24V PNP or NPN interface.


Thanks for your fast response.

I have a Dynapar amplifier that converts 5v differential to 12v pnp or npn. Could I get away with 12vdc or
must I use 24v.

Perry
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#4 Joe Tauser

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Posted 06 April 2011 - 06:44 AM

It won't work with 5V or 12V. Per the datasheet, the -E1B is looking for 24V signals. It's minimum logic 1 is 17 volts. Been there.

You'll need a converter that takes it all the way to 24V or you'll need different outputs on your encoder. If you use a converter, make sure its frequency response is high enough to handle the encoder signal.

Joe T.
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