ixnod
New Member
Posts: 7 
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Post by ixnod on Oct 16, 2017 2:23:36 GMT
Howdy team! My build is going great so far the mechanical is almost done. After reading a lot of posts i think it will be wise to add the pause and e-stop button. Does anyone have a wiring diagram for the M3 showing whether the buttons are NO or NC. I am assuming they are NO (normally open) but would feel better with confirmation. Thanks!!!
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Post by Bruce on Oct 16, 2017 2:49:39 GMT
Good question! Inquiring minds want to know.
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Post by aforww on Oct 16, 2017 3:24:01 GMT
They are NO. I still have buttons from my box builds I'm trying to offload. Just saying.  |
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Post by Bruce on Oct 16, 2017 5:00:28 GMT
So there is an "E-stop" and a "Hold" signal input. Which one do we want to wire up. One or both?
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Post by aforww on Oct 16, 2017 6:17:32 GMT
For pause, wire to the HOLD pins. I don't even know if EStop works as a true EStop on that version of the board. Never used it. My current EStop is a true stop. It kills power to the whole system.
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Post by Derek the Admin on Oct 16, 2017 13:24:48 GMT
That E Stop labelled on the board is not a true e stop. A true e stop on the m3 would drop the router suddenly. The springs would help stop it, but it's the nature of a belt driven Z. I recommend the pause (feed hold) button for it.
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ixnod
New Member
Posts: 7
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Post by ixnod on Oct 16, 2017 14:32:51 GMT
You guys rock thanks for the quick response!! I had some buttons laying around from work that should work. Thanks for the offer Aforww!
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Post by aforww on Oct 16, 2017 14:53:16 GMT
You guys rock thanks for the quick response!! I had some buttons laying around from work that should work. Thanks for the offer Aforww! Very welcome. |
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Post by Bruce on Oct 17, 2017 1:07:13 GMT
What kind of switches do you have aforww? Another question: does the Resume input need to be wired to reset the Hold signal? or does it reset after the contacts open again on the Hold input? |
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Post by aforww on Oct 17, 2017 1:12:31 GMT
Hold is basically a red square, resume smaller green square. Momentary switches.
You will have to initiate resume from either a button or from UGS . If you go the software route you have to hit pause in UGS and then play.
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Post by Bruce on Oct 17, 2017 12:58:40 GMT
I was looking at something like this: goo.gl/KZYbHk It has two sets of contacts, one NC 10A rated contact that will open and shut off power to the spindle/router and then a second NO contacts to the Hold signal input. I think resetting the system through the software UGS resume button shouldn't be a problem. |
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Post by jennamike on Dec 28, 2018 19:11:47 GMT
reviving this thread.
What is the behavior of grounding the estop pin vs pause. I like the idea of having one circuit for the 110v router side, and another for servos without killing power to the controller. I have a CK, so do not have the z issue with belts.
Also, is there a way on VFDs to have a spindle brake?
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Post by Derek the Admin on Dec 28, 2018 22:41:44 GMT
You can brake the spindle, but you would likely need to a braking resistor.
That pin labelled E-stop on the red board is far from a true e stop. It just resets the control.
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Post by Bruce on Dec 30, 2018 5:50:04 GMT
Commonly referred to as regenerative braking in VFDs. In order to stop a motor on a drive the excess energy now developed from the motor must be sent some place. A resistor is used to dissipate this excess energy.
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