"Wes" wrote in message
...
"John R. Carroll" wrote:

All of those are, I think. They build the 0i and 18i but the three thru
eleven haven't been in production for a while. You see a 15iMA or B on the
Chiwanese stuff from time to time but the modern builders are using thirty
series hardware.
I see 20 series hardware on CNC lathes once in a while.
Fanuc has some parts for the six but they are more expensive than the
machine in question. The best bet is rebuilding and that isn't exactly
cheap
either. I know guys that buy machines to have spares for their existing
controls. Hitachi Sieki has been out of business for a decade or more.

I bought a shared memory board from Fanuc to fix a popped serial port on a
OTc. I know
there is a second port on that board so I asked them how much to turn that
one on. The
said more than buying a new board we have in stock.

Give these guys a jingle next time.
http://www.memex.ca/index.php?option...tpage&Itemid=1


A firm that is history real concern. I can get parts for an 83 okuma, no
problem. I
suspect if we blow a memory board they can help us.

Maybe, maybe not. Either way you can probably find what you need or fix what
you have. The issue is price.


I'm combining your two posts at this thread level.

It will be important to be sure and back up everything, including the PLC
ladder, before moving the machine or even disconnecting the power. There
is
also a place that sells Fanuc battery replacements. In this vintage, it
isn't uncommon to move one of them 50 feet and have them not run again
without major fiddling around.

Learning to backup that puppy (the Hitachi Seiki) better be the first
thing on the buyers
list.

Knowing the seller, I'm sure a complete back up is already on hand.
I'd still make a fresh one and then load and test it.


The popped memory board was ez stuff until I found out there are
parameters and PC
parameters. I didn't have the latter. The techs that had delt with the
machine for the
previous 10 years never captured them either.

Every so often someone will post to AMC with this exact problem and the old
sages always respond with an admonition to the effect that parameter backups
are the first order of business. Well, I was in one of those "sages" shops
last summer and watched as they spent a month and ten grand getting a Makino
horizontal running again after exactly this memory board failure. The Makino
Pro III is basically a F16 with a layer of Makino stuff on top and this
machine is old enough now (1996 IIRC) that not even Makino was much help.
The guy that used to service these things has moved on or retired, I forget
which. That's the real problem. Getting the machine running again didn't
really take long, it was figuring out how to get in touch with the guy that
knew how that wasn't easy.
It's a kick ass machine until it isn't running. LOL

Less than 2 months after this deal, we moved a Mori Seiki SL25 ~100ft and
guess what? Yup,
can't remember what 9xx series error it was but ram was corrupt.

There is a sort of procedure I've come up with over the years to try and
avoid this situation.
You can't always just pick these things up and plop them down again - even
the bubble memory Fanucs ( like the 6) and Mitsubishi's.
Takes a little time but it's worth the effort.


Oh those backups I made of those machines sure came in handy.

I'll bet you were a hero for a minute or two.
Hehe.

JC