perry p Posted April 5, 2011 Report Share Posted April 5, 2011 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 Quote Link to comment Share on other sites More sharing options...
Emil Posted April 5, 2011 Report Share Posted April 5, 2011 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. 2 Quote Link to comment Share on other sites More sharing options...
perry p Posted April 5, 2011 Author Report Share Posted April 5, 2011 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 Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted April 6, 2011 MVP 2021 Report Share Posted April 6, 2011 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. Quote Link to comment Share on other sites More sharing options...
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