I'm looking for an incremental rotary encoder for use with a 1769-HSC module. I really just need to be able to calculate the RPM of the shaft it's connected to (shouldn't exceed a few hundred RPM), and was looking at a Red Lion solution (http://www.alliedelec.com/search/productdetail.aspx?SKU=70030292#tab=overview) but am uncertain if it will be compatible. My concern is the 40mA NPN output current, when the 1769-HSC has in input current max of 15mA (Am I possibly misinterpreting this?). Does anyone have another brand they have had success with in the past? Thanks.
