Acorn board new project

[Fbujold@gmail.com]

I am done with the controller mechanical (housing) aspects of things. I am starting the wiring. The Acorn controller will be connected to Gecko gr214v drivers. From the various posts I read, I have the options of going to the db25 or the screw type "H" connectors. From the looks of it i could go both ways. Where I get confused is the "pull-up"/open PNP/5V push / pull logic". Motors voltage will be 48 Volts.

How does the limit switches logic operates? Beeing in series the contoller cannot know which axis is tripped. (Just curious)

Also, I noticed there is a cold joint/corrosion on the back of the board where the Seed risers are connected. I have not yet powered the board but I have a concern it might affect the contoller's interface. Please advise
While registering i was asked for the board serial number. Cannot find it nowhere.

[CentroidFrog]

Hello and welcome to the forums,
1. Stepper drives are connected to the DB25 port, generally using a DB25 breakout board.
And AC servo drives are connected at the screw terminals.
This is covered on page 34 of the Acorn install manual: https://www.centroidcnc.com/centroid_di ... df#page=35
2. You're correct; when wired in series there's no real way of knowing which one was tripped exactly.
When tripped as a limit switch you'll need to use the limit switch defeat button to move the machine off of the switch.
With this in mind you may consider using 1 input per axis for the home/limit switches rather than 1, if you have the open inputs that is.
3. This doesn't look like anything to be concerned with.
A little hard to tell from the pictures but that may just be some flux used for soldering.

[suntravel]

You can find the serial number if you power up the board in the CNC12 screen, or in a report generated.

If you purchase a license you have to send a report anyway

Go step by step from the installation manual and it is easy to setup your CNC..

I prefer one input for each axis for a HomeLimit Sensor.

Uwe