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<p>initial page creation</p> <p><b>New page</b></p><div>== Overview ==<br /> <br /> Optical encoders made by Renco, a company that ended up being acquired by Heidenhain. There are incremental (with index) ones, as well as ones featuring UVW &quot;hall sensor&quot; channels for 3-phase commutation.<br /> <br /> == Replacement Parts ==<br /> <br /> == Online Resources ==<br /> <br /> [https://web.archive.org/web/20061016065032/http://www.renco.com/106022.htm RENCO RM21 Modular Encoder P/N 83403-001 REV A] (Wayback Machine)<br /> <br /> [https://download.datasheets.com/pdfs/2006/12/29/c/cs/rnc/ds/rm21%20modular%20encoder%20.pdf RENCO RM21 Modular Encoder P/N 83403-001 REV A] (PDF saved from above webpage)<br /> <br /> [https://web.archive.org/web/20061016065118/http://www.renco.com/106029.htm RENCO RCM21 Commutation Encoder P/N 83409-001 REV A] (Wayback Machine)<br /> <br /> [https://07f344a58728d44ae3b8-5318c1cebe9381a36fe5ed41911f264b.ssl.cf5.rackcdn.com/Eric/A/AD/RCM21%201999.pdf RENCO RCM21 Modular 2.1 Inch Commutation Encoder 77643-001 REV E]</div>

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