A Question on Ohmic Sensing

All things related to the Centroid Acorn Plasma system.

Moderator: cnckeith

Post Reply
TAS99
Posts: 15
Joined: Thu Jul 21, 2022 7:16 pm
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

A Question on Ohmic Sensing

Post by TAS99 »

I've wired the ohmic sensor as shown in S15108, defined Output4 as Ohmic Enabled and conducted a successful continuity check from the tip of the torch to T In on the TX board but when I touch the tip to ground I do not see the Plasma T IN led turn green as described on page 15 of the Plasma Users Manual.

Have I missed a step? Any suggestions?

Any help would be appreciated.

Tom
Joey
Posts: 102
Joined: Tue Aug 17, 2021 10:51 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by Joey »

Hello Tom
Do you have the THC set to "THC Installed" in the profile manager's, "THC Config" settings?
TAS99
Posts: 15
Joined: Thu Jul 21, 2022 7:16 pm
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by TAS99 »

Yes, "THC Installed" is set to Yes and Green.

Tom
TAS99
Posts: 15
Joined: Thu Jul 21, 2022 7:16 pm
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by TAS99 »

It works now but I'm not sure why.

I had a job loaded - the Bear test that's provided - I closed it and loaded No Job. Tested again and it works as expected.

??

Tom
Joey
Posts: 102
Joined: Tue Aug 17, 2021 10:51 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by Joey »

So, you have properly set the Wizard to assign "Torch touch Disconnect" in the proper output definition that matches the Output relaynumber that the Torch tip wire passes through on its way to the "Tin" input of the TX Board? Could you throw some pictures up of the Wizard, Output Relay board and the "TX" Board. Also The Divided voltage connected to the TX is needed for a complete torch touch circuit.
Joey
Posts: 102
Joined: Tue Aug 17, 2021 10:51 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by Joey »

Is this A new setup? Depending on the Series of events the settings might not have applied to the job that was loaded yet? Be sure to run the Calibration Job before starting other Jobs.
TAS99
Posts: 15
Joined: Thu Jul 21, 2022 7:16 pm
Acorn CNC Controller: No
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by TAS99 »

Yes, it's a new setup and I was following the installation as the manual described. I'll be sure to do the calibration test before starting anything. I only loaded that job to take a look at the G code. I'm not at the point of actually running a job but I hope to soon.

Tom
Joey
Posts: 102
Joined: Tue Aug 17, 2021 10:51 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: none

Re: A Question on Ohmic Sensing

Post by Joey »

Alright Tom!
looks like you are definitely getting close then! Feel free to post pictures of your progress so we can look things over and 3rd party verify that everything looks right. Excited to see the machine up and cutting.
Joey
Post Reply