Control panel wire gauge question?

[Clive S]

Ding Dong Ding Dong.!! . . . . 24Vdc is correct for these drives Clive they only Take 30Vdc Max so don't want to release the Magic smoke.!!

Yes I had checked that out in the early post. I was just saying its a shame to use such low voltage drivers. ..Clive

[Dwayne Dibbley]

OK updated to V3 now and I have added the e-stop / latch relay connections? removed the 9v and 12v PSU to avoid confusion at this point and ill upgrade the fans to 24v and run off the Din Rail PSU. Am i close correct with the relay / contactor connections?

Thanks again

[Dwayne Dibbley]

Ive attached a schematic of what i think the latch circuit looks like:

S1 = Go push button NO
S2 = E-Stop NC
S3 = Stop Button NC
RY1 = double pole latch relay NO ( can you also do the same with a single pole? )
RY2 = contractor DC coil

Thanks

[Clive S]

Surly a stop button should not be the same as E-stop. ..Clive

[Dwayne Dibbley]

Surly a stop button should not be the same as E-stop. ..Clive

Where would you place a stop button to release the latch? or not required?

[JAZZCNC]

Where would you place a stop button to release the latch? or not required?

When you press E-stop or the stop button then latch is dropped because power is removed from relay. So in your schematic E-stop and Stop are the same.

Same in Mach3 if you press Stop while machine is moving then consider it just the same as pressing E-stop button. You will lose position and need to Re-home before continuing. Only Feedhold is safe controlled stop.

[Dwayne Dibbley]

OK, attached a new version where on pressing the Go/Reset the latch relay joins A-B over the go button to keep the circuit live, and at the same time A-B energizes the DC coil in the Contactor powering the Stepper PSU / VFD. Hitting the E-Stop breaks the 24v circuit and the latch is released along with the contactor?

Does that sound / look about right?

Thanks