touch probe problem

J

jmschneider

jmschneider
This is my second machine. I have setup everything and connected to the masso everything seems to be running properly until I encountered the following.



The probe wire for touch off works by showing high and low signal when being touched together, but when I clip one of the wires to the spindle it kills the power and resets the masso.



I am using the masso with a 12v 3a power supply with ground, and it runs a gecko drive with its own 48v power supply with ground. The only other powered item is the VFD which has its own 220 20a line directly to it. with the 3 wires to the spindle.



Has anyone experienced this? Otherwise homing with limit switches, turning on and off spindle with masso and the e-stop all works as it should.



Thank you.
 
cncnutz

cncnutz

CNCnutz
Staff member
Hi jmschneider

I imagine that the wire you are connecting to the spindle is the positive of the power supply and the machine is grounded.

Use a meter to confirm that the lead you are clipping to the cutter is ground.
Confirm that the body of the machine is not live.

Watch this video on the correct way to set up the touch plate.

If you still can't get it to work please provide a wiring diagram of exactly how yours is connected.
Cheers
Peter
 
J

jmschneider

jmschneider
Hi Peter,

Thank you I love your videos by the way I have been a long time subscriber.

I watched your video and other relating to this. Im a bit at a loss as this does seem like it is to be simple. I wanted to clean up and check all my connections again before replying.

I have uploaded how I connected my devices, in a drawing.

Things to note are. The CNC has the gecko drive and and 48v power supply. the only things connected to it are the motor db plugs and the shield wires for the motor wires.

I then interfaced the motore wires with a db25 connector to the masso for the step and direction wires and the ground on pin 25.

Other than that all other connections are made on the masso

The masso has the estop and limit switches connected and all those are behaving like they should, I can home the machine, the estop works and I can jog around the motors. I have calibrated etc.

I have confirmed that the green ground wires from the power supplies have been connected to the wall plugs ground on both the masso power supply and the gecko power supply. (I have not linked the ground from the masso supply to the gecko power supply but rather they have the own plug in which the ground prong is present) However I was not sure how to test the table itself for continuity with the multimeter I have

In the diagram you will see that I have wired up the probe per the video with the probe assigned to pin 16 and then a feed from V+ into the same pin#, the alligator clip side of the plug I have connected to the V- portion of the power supply. However when I touch the two together, it seem to short and restart my masso controller.

I wish I knew a bit more about the testing of the pieces and thought it may be a ground loop, however I have heard with a ground loop there would be all kinds of problems and I am not having any other problems with exception to this probe.



I look forward to any advise and have uploaded the basics on how I have it wired. (excuse the craftsmanship)



Jesse
 

Attachments

  • wiring.jpg
    wiring.jpg
    3.6 MB · Views: 33
You must log in or register to reply here.
Top