The docs say you can set your endstops to be 24V for inductive sensors. What current can the endstop handle? I have an electromagnet running off the 24V supply, with a MOSFET controlled using the PWM line. I'm wondering if I can set the jumper for 24V switches and then use the +V line on the endstop port to drive the magnet circuit. It would simplify the wiring quite a bit.
Rather wire direct to PSU. Do not forget to protect against transients (add freewheel diode etc) from the electromagnet coil denenergising - dumping that back-EMF into the 24v rail can damage the controller.
Yeah, that's what I'm doing right now -- it just means routing the wire to the other side of the black box. Any reason I can't run my xtension limit switch off the 24v rail, rather than the +V on the xtension port? Provided I set the jumper to 24v operation inside the black box.
You can power a limit switch from elsewhere (not sure why you would though, a 3 core cable directly off the connector is the neatest) (that just powers a pullup, rc filter and LED) Doing funny stuff with wiring just makes future troubleshooting harder and can cause damage Its your Electromagnet you want to wire that we advise against using V+ for
Thanks - I think I can probably reconfigure my system so the limit switch is in a different place and doesn't share any wiring with the magnet driver board. That would be the cleanest solution.
Makes me feel better too star-wiring power and gnd is always safest. Inducing fluctuations into voltage rails cause all kinds of hard to troubleshoot issues. good luck and can't to see what the electromagnets role is sounds like you are building something unique and i have to admit my curiosity has been triggered (;
