![]() |
Would this rotary encoder work with a glass-scale board? - Printable Version +- Forum (https://forum.yuriystoys.com) +-- Forum: General Discussion (https://forum.yuriystoys.com/forumdisplay.php?fid=5) +--- Forum: General Help and Support (https://forum.yuriystoys.com/forumdisplay.php?fid=3) +--- Thread: Would this rotary encoder work with a glass-scale board? (/showthread.php?tid=586) |
Would this rotary encoder work with a glass-scale board? - MidniteMachinist - 07-14-2020 Apologies... I know enough about electronics to get myself into trouble, but not back out again. Would this encoder work with a TouchDRO board for glass scales? And if so, am I correct in assuming that it would actually have 14400 PPR (quadrature)? Would I need to add pull-up resistors? Encoder in question here RE: Would this rotary encoder work with a glass-scale board? - Yuriy - 07-14-2020 It looks like it will work. You won't get 14400 PPR (technically speaking) but that will be the resolution. It will require a pull-up resistor, since the encoder is NPN. Regards Yuriy RE: Would this rotary encoder work with a glass-scale board? - MidniteMachinist - 07-14-2020 Thanks, Yuriy. So I need to add a 2k resistor from Vcc to each of the A and B outputs, correct? What about the complimentary (A- and B-) outputs? - RE: Would this rotary encoder work with a glass-scale board? - Yuriy - 07-15-2020 Modern 5V encoders use positive signal on both lines (primary and complementary), so you'd want pull-up resistors on both sets. The board comes will pull-down resistors installed, but if you give me some heads-up I can order one without those resistors. I'd use something around 50K for pull-up resistors in that case. If you use 2k with the 47K that come on the board, that would still work, but it just add "chaos factor". Regards Yuriy RE: Would this rotary encoder work with a glass-scale board? - MidniteMachinist - 07-15-2020 50k on both sets it is, then. This is for an existing setup... So no special orders necessary. Just adding a rotary table readout for the W axis on my mill. Thanks again for the help. |