Plasmac THC

Hi Guys, I introduced myself a while back. I bought the spaceship plasma a while back from rod.. Table has been running well but lately I have been trying to cut some thinner material and I cant seem to get the thc to operate? I have it selected on the main screen but the lead screw for the height of the torch never moves once it has started cutting? Any ideas where to start looking? when I run a cut the active light never comes on.  Thank you

Thanks... Unfortunately while trying this I must have accidentally clicked on something?? Table is now going haywire... i turn it all on and try and home all and the torch height goes up and just keeps hitting the bump stop as do x and y.. the whole table is shaking violently. I have literally no idea what happened, I did open a few menus looking for the VAD but I didn't change anything.

I think Tommy is right about the feed override. I never used it..

But back to your problems. First shut the PC down and power off the control box, then restart both.
From the PC, open a terminal window and type
ping 10.10.10.10
​​​​​​If you get a reply, the Mesa card is still there
Hit home all and if it works, all good! It was the way you held your tongue!
If it goes crazy, hit estop!
Grab a multimeter and measure the voltage between the 2 busbars and work out which one is + and which one is -
The left one from memory is -24v (or 0 volts for the purists!) and the right one is +24v. Do you have 24 v?
Let's start with the Z axis home switch  at the top of travel.
If you review the tables I gave you, the Z axis shared home switch is attached to TB6 pin 9 (counting from the top of the 7i76e board). That is input 08
Now open halshow and locate hm2_7i76e.0.7i76.0.0.input-08 and watch it
With a steel ruler or a screwdriver, trigger the prox sensor. Does the light on the sensor change state? (It can be blown and still fire this light)
If the light does not come on and no other prox sensors light up, it's possible the +24v  or -24V on the DB9 cable is faulty. 
In fact when I think of this, if that was broken, none of the sensors would work which could explain the issue you have...

Look at  halshow. Does the pin  change state? If it doesn't, there is a fault somewhere.
You may need a helper to do the next bit. Trigger the sensor again and with your multimeter, check you have 24v between the 0 volts bus bar and the TB-9 connector on the 7i76e? If you haven't, then it's likely the sensor is faulty.
You might also like to check for 24V at the DB9 connector on the base of the enclosure (can't remember which one goes to the gantry) but it has wires on every terminal when II look at the table in the docs I gave you. The sensor is on pin 8 - CTS

Finally, I cover checking pins etc in my video and it gives a systematic way to trouble shoot when connecting sensors, the same applies to troubleshooting
​​​​
Please report results.

Wow.. thanks so much rod for the comprehensive response.. I’ll go through this tomorrow and respond. Really appreciate the help.

Oops, I forgot the video

YOu have all the documentation to trouble shoot so good luck!

tommylight wrote:

Also, make sure you are using the right config. This i do mess up quite often! 

This is a Spaceship. There is only one config  

But yes, I think the most likely thing was a DB9 connector was bumped out of its socket. Probably up on the gantry where it enters a metal jiffy box!

This is where saving your config and documentation in Google Drive helps!
Even after you sell your machine....