Re: retrofitting an older CNC (shizuoka AN-S)

Thanks for all the input. it's been very helpful. I am far less confused than I was a few days ago. I know what my options are at least. I think the most cost effective, and ultimately the most powerful/versatile, will be to try to get the existing controller fully online. I had the day to play around with it, and have learned a few things. First I am slowly learning the controller. The manual is a bit arcane, and as my experience with CNC is limited at best, deciphering what are instructions for someone versed with CNC and production machining is a bit of a challenge.

So far all that I can find wrong with this machine is that the Z axis is faulting. It is getting nowhere near the limit switches, and the longer the machine is on the shorter the Z needs to move before it faults. If the machine is cold I can get it to home, override the z axis and run the machine through any of the 25 or so programs still in the memory of the controller. The specific error I am getting once the machine is warmed up is:



Emergency stop.

Z servo error

Loss of feedback or no motion on Z axis.



There is motion so it must be in the feedback

Does this sound like a bad tach or encoder? Could it be in the drive?

I�m going to call baldor (the maker of the drives and the servos) and see what they can tell me.



doug98105 mentioned that factory (I assume Dynapath) still offered tech support. If you can post a phone # or url please.



I�m hopeful that if I can resolve this Z axis fault that this is most of what I�m up against as I so far haven�t found anything else. Except maybe a little too much noise in the Z ball screw.



Thanks.





Peter-

pdh@...

(remove knowspam to reply)





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