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Messages - AFrank

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1
General Mach Discussion / Re: Mori Seiki retrofit
« on: August 08, 2016, 11:49:23 AM »
With all due respect, I fail to see how I am "building a machine". The machine is already there. I just need to give it a cheap new brain to make chips until I can afford to buy a new machine or do a more professional retro.

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General Mach Discussion / Re: Mori Seiki retrofit
« on: August 08, 2016, 09:22:34 AM »
I had to dump the original servo amps. I just couldn't figure out how they communicated with the control.
I am looking at this drive: http://www.leadshine.com/UploadFile/Down/DCS810V1m.pdf
There are plenty of these available on ebay and they take single ended signals but..... its a leadshine. Has anyone used these?
I figure the spindle encoder is single ended as well? where is the index pulse?
Are there motion controllers out there that take spindle encoder feedback, or will most require an expansion board?
I was originally looking at CS-Labs hardware, but I just cant afford it :(
The unfortunate truth is that im a broke ass college student that can hardly keep enough money in my wallet for a pack of cigarettes.
This retro doesn't have to be with all the best quality hardware. I just need it making chips for me.

I know that I probably sound crazy for considering a job like this. Ive done crazier things before. Money is tight and I just cant afford good machinery. Gotta make due with whats available. I have a buddy that is a wiz with electronics and I know that I will need his help with this project to get it air born but for right now, I need to get a better understanding of the equipment.
 

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General Mach Discussion / Re: Mori Seiki retrofit
« on: August 07, 2016, 10:30:02 PM »
77 mori sl-bb

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General Mach Discussion / Mori Seiki retrofit
« on: August 07, 2016, 10:25:14 PM »
Ive tried every cnc forum that I know and still cant get any feedback. Figured ide try here.

I first want to say that I have near 0 understanding of electronics and cnc systems. I have some minor background knowledge of cnc but not enough to do my own retrofit.

Ive got a 1977 Mori Seiki SL-BB (its essentially an SL-1) that im trying to retro a pc based control to. I bought the machine stupid cheap and the day I got it fully installed, it blew out the control >:(
Ive already removed the old control. Everything is gone except for the servos and encoders. The original spindle motor and drive have been removed. I got an AC Dayton 5hp motor to use for the spindle. Will buy a VFD to run it. I would like someone to tell me what I should use for retrofit hardware. I want to keep the closed look system and use my original encoders (including the spindle encoder). I would like to use an Ethernet motion controller (I hear they are faster and better suited for high precision/industrial environments)
what hardware I currently have:
-both axes are Yaskawa UGCMEM-04DB1SF DC servos. 70v .4-2.6kW. Tacho-generator with pulse encoders.
-servo encoders 500 pulse per rev. A, B & Z channels.
-spindle encoder PC-1024Z-WFT, 1024 pulse per rev. A and B phases. 1 pulse/rev= A phase.
I will attach pics of data plates and the machine itself
 

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