Search found 3703 matches

by cncsnw
Sun Feb 25, 2024 2:06 am
Forum: Centroid Acorn CNC Controller
Topic: M3/M4 lost control <outputs left in forced off mode>
Replies: 7
Views: 127

Re: M3/M4 lost control

I wonder if the problem might be because you used the Alt-i display to force OUT5 (among other outputs) OFF.... Keith: maybe the "simplified" PLC diagnostic utility could use some extra training wheels, wherein when it is closed, it prompts the user and offers to restore PLC control of all...
by cncsnw
Fri Feb 23, 2024 9:12 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hardinge CHNC4 Retrofit
Replies: 129
Views: 69974

Re: Hardinge CHNC4 Retrofit

That looks correct. If you translate "red" to "1", and "green" to "0"; then read them from right to left; you will see that those are binary values counting from 1 to 8. That is consistent with what your current PLC program expects. You just need to position t...
by cncsnw
Fri Feb 23, 2024 9:08 pm
Forum: Centroid Hickory CNC Controller
Topic: my haas mini to hickory controller spindle motor question
Replies: 10
Views: 154

Re: my haas mini to hickory controller spindle motor question

Then, as long as the motor either drives the spindle directly, or drives the spindle at a 1:1 ratio using a toothed timing belt, then you can do spindle orientation using the motor encoder, with a drive like the Delta C2000. That requires, of course, that the spindle motor encoder is truly a quadrat...
by cncsnw
Fri Feb 23, 2024 6:49 pm
Forum: Centroid Hickory CNC Controller
Topic: my haas mini to hickory controller spindle motor question
Replies: 10
Views: 154

Re: my haas mini to hickory controller spindle motor question

Does your machine have changeable gears (i.e. high range / low range) between the spindle motor and the spindle? If your machine does have changeable gears between the spindle motor and the spindle, then is the spindle encoder connected to the motor, or is the spindle encoder connected to the machin...
by cncsnw
Fri Feb 23, 2024 2:52 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: All-in-one circular interpolation undersized by 20 thousands.
Replies: 2
Views: 60

Re: All-in-one circular interpolation undersized by 20 thousands.

If you have 0.0200" backlash, then you have a mechanical issue you need to fix. Software backlash compensation is not going to work well in a machine that sloppy. First, though, you should do some test cuts to see whether your problem is backlash; or whether your problem is scaling (revs/inch);...
by cncsnw
Fri Feb 23, 2024 2:47 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hardinge CHNC4 Retrofit
Replies: 129
Views: 69974

Re: Hardinge CHNC4 Retrofit

There are too many variables involved when you try to translate CNC10 PLC logic into CNC11/CNC12 logic. You do not know for certain whether the old CNC10 logic was written for current-sourcing inputs or current-sinking inputs; and you have to account for the fact that, in CNC10, a closed input was c...
by cncsnw
Fri Feb 23, 2024 3:21 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hardinge CHNC4 Retrofit
Replies: 129
Views: 69974

Re: Hardinge CHNC4 Retrofit

One thing I can do, is adjust the magnet to get the proper reading when the turret moves. That is worth doing. With your wiring, you will get all four inputs green if the rotor is between positions. You need to make sure that it has not gone that far -- i.e. that you still have one, two, or three r...
by cncsnw
Thu Feb 22, 2024 1:39 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Hardinge CHNC4 Retrofit
Replies: 129
Views: 69974

Re: Hardinge CHNC4 Retrofit

Reversing the sense of your inputs, from current-sourcing to current-sinking, would require PLC modifications. Right now, that is probably not worth doing. I only went into all that as a way of explaining why, when you are looking on the Alt-i screen for a given turret value in INP19-INP22, you do n...