I want to hook up a relay to control my spindle. Just on/off.
I am assuming a 5V relay, what kind of amperage rating do I need for the contacts? I use a dremel tool for the spindle, but I dont know how much current it draws. The biggest I can find is 3A, all the rest are 500mA or less.
Has anyone done this? Any suggestions on how to hook it up?
Jeff Davis (HomeCNC)
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Thanks for that,
Any suggestions on how to hook it up?
BTW if you do use a coil type relay, don't forget the reverse emf diode across the coil. (typically a 1N4007).
I have little knowlege about this type of thing and I would like it to work right from the start with no blowing things or me up.
That link showed none in stock and none on order. I guess a trip to an electrical warehouse might get me what am looking for.
digi-key part #Z193-nd 12volt dc switch contact 110v 15a Relay
Mintz, you got me all excited. Unfortunately that is a 12 volt coil, I need 5V coil.
I like the shaft couplers at stepperworld, anyone have experience with them? Are they sloppy or tight?
CO, Its looks like you may have to go with a printed circuit type relay after all, I could not find any 5v with terminal connection.
Omron has a PC type G2R1-DC5 10amp contact, available from Electrosonic for Can$5.10, Electrosonic has an office in montreal.
Thanks for that.
check with any electronic suppliers around your town i used an NTE RS3-1010-51R SSr 10amp rating origanally started with a dremal but bumped up to a craftsman rotozip copy has like a 5amp rating on the motor used pin 1 for the control with turbocnc you might look on xylos fourm too i think theres some info on it
stepperworld.com,extras page has a relay for $22 is what I use. 5 volt logic will drive it.