tm support - ohmic sensing

[noclinkers]

I was on the line at noon today trying to get a problem figured out. Made the point that I needed a reply before closing .... did not get it. Second time this has happened even though tech said they would get back to me both times.
May not seem like a big deal, but it is to me and was the reason I bought a TM. I have been defending Tm on other forums for this reason, but no more!
How hard is it to call back even if you are still working on it?

 

[bigjoe]

did you get his name? post your problem here maybe one of us have had the issue you have and can help you out, this forum is for us to use as well. it can be frustrating I know , my computer skills are not up to par with most it seems. I feel stupid asking some things but hey , I guarantee there are not many people out there that can do what I am trained to do so its all relative. and its true not a lot of love for torchmate out there..

 

[noclinkers]

It has to do with my ohmic sensing. It will not work on a active run, but will pass the troubleshooting test and if I jump the wires on the relay it will work, but as soon as I take the jumpers off it is a no go.

 

[bigjoe]

I have noticed after awhile, that the connection if you want to call it that, between the ohmic wire on your torch and the nozzle doesn't always have continuity. I check with my meter between the two . then take it off and clean it with some sand cloth , bottom of nozzle and sides where it makes contact with the clip . sometimes just unscrewing it and rescrewing it back on is all it takes to make the connection. dirty steel also makes not work properly. hope that's helps

 

[Dnmeistr-LECS]

Good catch Bigjoe, sometimes you get a little resistance between the ohmic clip and shield cap and prevents the electronic circuit from closing.

Ohmic sensing is all about the ground connection between the VFC box and the material. Need to verify that both the VFC and the Accumove box has there own ground wire connected to a location on the table, then with a meter need to check continuity between that location and one of your slats, if you have resistance then you will need to run a ground wire from that location on table to one of your slats.

Turn the relay on under Machine Settings > Advanced > Relay Output, to verify ohmic, you can jump the orange wire to the material and to the slats to see if Ohmic detects. Note: some material has a protective coating on it and unless you grind throgu the mill scale or what have you ohmic will not detect. In that situation you would need to turn Ohmic Off and under Job Setup tell the software where the Top of Material is at.