Retro fit Shizuoka B-3V

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Neuhorst
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Retro fit Shizuoka B-3V

Post by Neuhorst »

Hello I am just bought my first old cnc mill and going to retrofit it. I just wanted to post my plans here and get some feed back and guidance from the community. I have already spoke with Liviu by email and phone he was very helpful so I got a start wih his help. The machine I bought is a Shizoka B-3V from 1984. It has Fanuc yellow cap servos 5M on the X&Y and 10M on the Z. For the spindle it has a Fuji motor that I am worried about being a problem. I emailed automation direct about getting a motor driver that can run on single phase and was told they can't hep me because the motor is Japanese spec 160 volt. The plan so far is to try remove the Fanuc 6M control system and try sell it. I live in the country so trying to do everything single phase to avoid a 3phase converter. I think the allin1dc looks like the easiest way to go, just have to figure out the spindle driver motor.
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Neuhorst
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Re: Retro fit Shizuoka B-3V

Post by Neuhorst »

Sorry for the upside down motor driver label. But in my gallery in my phone the pic is the right way nd itflipped upside when I attached it and I tried to flip it upside down are try again but this time it did up load upside I don't understand.

I forgot to add I have a Dell all-in-one computer I plan on using for the control pendant.


Neuhorst
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Re: Retro fit Shizuoka B-3V

Post by Neuhorst »

I can't seem to find the spec sheets for the Fanuc yellow tops or the Fuji spindle motor and driver can somebody post them or point me in the right direction.


martyscncgarage
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Re: Retro fit Shizuoka B-3V

Post by martyscncgarage »

Replace the spindle motor with a standard 3 phase motor. Use a GS3 drive from Automationdirect.com
I believe Fanuc Yellow tops are DC brush motors. May have encoders in them. Not sure. Take pictures of them and their label.
A friend of mine had a coment with Yellow Top Fanucs and they were DC brush and I "think" he said they had 1000 line, line driver/differential encoders.

You may be able to reuse the motors and use All in One DC.
OR
Replace the motors with EASTUN and go with OAK.
You may need I/O expansion to integrate the ATC
How does the turret work? Geneva drive or?

Marty
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Re: Retro fit Shizuoka B-3V

Post by Muzzer »

Assuming you can connect it up to a 110-0-110 (ie 220V) supply, I can't see what the problem is. You just need a std 230V input VFD and program it to give 160V at rated speed. A school kid could do this - you will be telling it what voltage is written on the name plate (160V), what the corresponding speed (6000rpm) and frequency (200Hz) are. Or if it asks how many poles, it's a 4 pole machine. Japanese volts are the same as US or EU ones. Don't know what those boys at AD have been smoking but perhaps they are in the wrong job.

Don't even think about changing motors. That's a very nice, top quality motor you've got there - it's designed for operation over a wide range of speeds, to be driven by a VFD and balanced up to 6000rpm. Changing that for some single speed Chinesium import would be butchery and a sacrilege. It would be like fitting wooden wheels to a Porsche.

I've got a 1983 Shizuoka AN-SB which has a very similar motor. Mine's actually by Hitachi but also runs a wide speed range (300-6000) and was designed to be driven by a VFD. The original Hitachi VFD wasn't programmable without a special dongle and needed to see all 3 phases, so I bought a Yaskawa V1000 that takes 230V single phase and drives it perfectly. Mine is 180V at 6000rpm, so a very similar voltage spec to yours. The spindle motor is the only thing that needed a VFD. I run my 3-phase coolant pump directly from 230V single phase using a motor run cap (7uF? I forget) to create the 3rd phase. All the other stuff like the servos and controller are basically single phase anyway.


martyscncgarage
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Re: Retro fit Shizuoka B-3V

Post by martyscncgarage »

Muzzer,
His motor is 5.5kw continuous. He is not likely he's going to find a single phase input VFD. Perhaps there is a chance the Fuji will run on single phase but at reduced output. Otherwise he'd have to find a much larger VFD to drive it on single phase input. Maybe one rated for 10+ hp.

I never thought about telling the drive the motor nameplate voltage was much less than the incoming line voltage. Makes sense, I never had the opportunity. Thanks for that info.

I suppose another option is a rotary phase converter designed and sized for CNC use. American Rotary comes to mind, but it will be expensive. (And not his first choice)

How would you approach it Muzzer?
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Centroid_Liviu
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Re: Retro fit Shizuoka B-3V

Post by Centroid_Liviu »

Neuhorst wrote: Fri Aug 10, 2018 7:22 pm I can't seem to find the spec sheets for the Fanuc yellow tops or the Fuji spindle motor and driver can somebody post them or point me in the right direction.
The Fanuc Yellow Caps servomotors were DC. You can run 5M and below at full peak with the ALLIN1DC. You can run the 10M with the ALLIN1DC at about 80% of its peak. If it says "Pulse Coders" on the data-plate you can re-use the existing encoders. Otherwise its just a matter of installing new encoders.

The below is also a helpful info sheet about the entire product line.
Fanuc Yellow Cap.JPG
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martyscncgarage
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Re: Retro fit Shizuoka B-3V

Post by martyscncgarage »

Centroid_Liviu wrote: Mon Aug 13, 2018 9:00 am
Neuhorst wrote: Fri Aug 10, 2018 7:22 pm I can't seem to find the spec sheets for the Fanuc yellow tops or the Fuji spindle motor and driver can somebody post them or point me in the right direction.
The Fanuc Yellow Caps servomotors were DC. You can run 5M and below at full peak with the ALLIN1DC. You can run the 10M with the ALLIN1DC at about 80% of its peak. If it says "Pulse Coders" on the data-plate you can re-use the existing encoders. Otherwise its just a matter of installing new encoders.

The below is also a helpful info sheet about the entire product line.
Fanuc Yellow Cap.JPG
Thanks for clarifying Liviu. Good for me to know as well.
Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ


Neuhorst
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Re: Retro fit Shizuoka B-3V

Post by Neuhorst »

Thank you Liviu, Muzzer and Marty. And Marty thank you for taking the time to make your YouTube videos I recently found your channel and have subscribed.

I am happy with my servos they seem pretty straight forward. So I want to get my spindle figured out so i can start ordering parts. So my main goal is to run on single but if i have to go with a 3 phase converter so be it. The reason being i plan on moving from my garage to city shop so i feel a 3 phase converter would be something i might buy and then have sitting around after i move.

I found on automation direct a GS4-2020 it is 7.5hp from single phase service and has built in PLC. I want to figure out if it can handle orientating the spindle for tool changing. I feel it doesn't have that option but maybe through the PLC I could up with a way to orientate the spindle.

I tried a quick look at the yaskawa drivers but they seem to be only 3 phase. But i am away at work and havent had the time to properly research them. Does anybody know of any other brands that i could look at.

If i go with getting a 3 phase converter could i use my old fuji driver that is already on the machine? If i go this route it would mean i would have 3phase power to run my spindle lube pump, way lube pump and coolant pump.
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Neuhorst
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Re: Retro fit Shizuoka B-3V

Post by Neuhorst »

Anyone know why my photos are coming out upside down. I am using my phone does that have something to do with it.
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