Sree Posted July 27, 2018 Report Share Posted July 27, 2018 Hi, I am using SM43JR20 but I couldn't find any information about the type of encoder signals that is safe to be connected to the PLC. If possible can you suggest some shaft encoders that can be connected to this PLC model? Thanks in advance Sreerag Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted July 30, 2018 MVP 2021 Report Share Posted July 30, 2018 I typically use a quadrature encoder (has two outputs - A and B ) with a sourcing 24V signal. These are available from many manufacturers. Do you have a specific one you're looking at? Joe T. 1 Quote Link to comment Share on other sites More sharing options...
Sree Posted July 30, 2018 Author Report Share Posted July 30, 2018 Broadcom Incremental Encoder 256 ppr 12000rpm 4.5 → 5.5 V dc is the one I am looking at. I have a 5 V source with me. Will it work ? Quote Link to comment Share on other sites More sharing options...
MVP 2021 Joe Tauser Posted August 1, 2018 MVP 2021 Report Share Posted August 1, 2018 No. The PLC IO module needs 24V for the "1" state. You'll need a high speed converter to step the voltage up. Try using Dr. Google to find something, or I've been known to roll my own on a small piece of perf board- The output will be inverted, but that doesn't matter for counting pulses. Joe T. 1 Quote Link to comment Share on other sites More sharing options...
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