3Dof sim

Oh, I was referring to Lucian's post and his picture of ac relay, @SeatTime posted his comment while I was writing mine, did not see it. His 40A dc relay seems better option than one in my link.

So how do i wire this ac relay to my motors?

And whats bad about ac relays?

@SeatTime you use 3 of them right? Why its not good to use the relay i bought for ac? Why do i need dc?

The AC relays will work, just not for as long, as the high current DC back emf (when used in anger) destroys the contacts . So if you are going to buy them, why not chose something designed for the job. DC relays are designed to handle these high DC 'break' currents for allot longer. My sim actually has five DC power supplies (for five motors), so I have five relays. They rarely get used in anger.

And you can switch of all of them whit a push of a button if yes please help me with a wiring diagram on monday i will by 3 pf this relays they are good right?

I was informed with the Standard Non Solid state relays that the potential for them to "lock on" is much greater, I Also don't see Solid State relays being any more expensive than a standard Automotive relay.

If you can get a suitably rated solid state for the same money go for it.

I want the right thing is that ok the picture i posted?

And how do i wire them to shutdown whit one push of the button

Ye thats the diagram i shoud you for a couples days ago but i cant figure that out.

How about if i connect all psu to this and if something goes wrong i pull the switch and all psu goes out of electriciry?

if you are going to use psu for powering your sim you can use switches as @Slider has done in his tuto.
http://www.xsimulator.net/community/threads/how-to-modify-a-server-power-supply-for-12v.5774/
its simple to do and not much ampere going threw these connectors .
don't know if its good switching off power from JRK or MM while they are connected to simtools or there configuration program or what else can be used. here i need some help too @bsft and @Pit can really answer to this

with the jrk, as they get their power from 5v USB, they can have the 12v shut off, but you may need to reset the jrk in the utility program.
I still have not got a clear answer as to why he wants to shut the power completely off unless it is just in case something breaks.

Switching off the Ard/MM is no problem. I use a mushroom emergency button, which shuts down the PSU's directly.

JRK's Do NOT require a reboot if you turn the power off mid game, I have 100% confirmed this with my Kill switch set up, I've used it many of times in Online MP race's where you Cant Stop the motion or Hit ESC, So i Hit the kill switch, wait for the motion to settle and pop the switch back on and resume.

Also with MM it is ok to shut down 12V from motors and leave arduino on when ever you wish, comes back alive no prob. But shutting down arduino crashes Simtools.

Edit. Ah, should read more carefully, Pit allready covered this.

Agreed, I have to precise my posting above, the Arduino is connected to the Notebook, so the power (5V) is always on and by association the MM is connected to the Ard. So they are always "on" even if I shut down the PSUs to stopthe motors. BTW the new SMC3 code allows to attach a separate pot to control the motion output. This output can to be used like a volume control so no shutdown of the motors is needed while playing. Only at the end of your track day

there, I am wrong

Thats pretty cool i must say, Handy in those "hack online MP races" where you can barely get off the Start/Finish strait. Turn it right down, Get off the start and turn back on once your settled into a position.