On 10/7/2016 3:28 AM, Klemen Zhivko wrote: > OK got answered on linuxcnc forum that: > > " > For CPC 12 -14 they have relay in torch that can contact 120VAC, 1A, but > generally speaking I can put 5V, 50ma to this 12 pin of cpc (instead so > huge 120VAC, 1A), and connect 14 pin to my digital in (5v) on board. > When relay triggers in plasma torch (14 should go to 5V) and I measure this > 14 line as 5V on my digital input pin on 5V compatible linuxcnc computer. > " > So here I attach adapted picture for anybody having same concerns. > > Now I would "only" like to get confirmation from @cdsteinkuhler that using > P_503 port, pins > P503_1 as 5V digital IN as for ENCODER from 5V signal of (thcad 10V)
This is fine. > P503_2 as 5V digital OUT for PLASMA START This might not work. These pins are protected against 5V levels, but only have the drive capability of the BBB I/O pin (which is 3.3V and a few mA). If this is not a high-speed signal, I would suggest using one of the low-power FET outputs. These are "open-drain" style outputs and can handle voltages up to 12V. > P503_3 as 5V digital IN for for TRANSFER (cnc start moving) > is OK. This is fine. -- Charles Steinkuehler char...@steinkuehler.net -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
