What's new
What's new

Fanuc - What does this board doo?

Ox

Diamond
Joined
Aug 27, 2002
Location
Northwest Ohio
A16B-01300-0221

This is a sub-spindle drive, and the drive is apparently bad.
Throwing alarm 12

12Excessively large current flowed into the DC link of the main circuit.

So, I am considering buying a used unit, or sending this in for rebuilding.
But when I look them up, most units doo not have this aux board, yet the drive has all the same model numbers.

My guess is that this is a "phase synch" board to allow a sub to not just spin the same speed, but to line up in C [for lack of better term] for example - gripping hex bar in both spindles. This is just my guess...

I am wondering if a guy dare buy a unit without this board, and add this one to it.
But then how doo we know that this board isn't the whole problem.
(per the alarm - I'm guessing not - IF it is related to the phase synch feature, but IDK)

If this board was added to another drive, I'm guessing that there may be some dip switch changes to be made. (???)


  • A16B13000221
  • DISCONTINUED BY MANUFACTURER
  • PC BOARD PCB
  • SIG CONV. CK



----------------------------

Think Snow Eh!
Ox
 

Attachments

  • DSCN2473.jpg
    DSCN2473.jpg
    96.3 KB · Views: 104
  • DSCN2470.jpg
    DSCN2470.jpg
    89.7 KB · Views: 85
Give these guys a ring at 434-971-1394 for a controller of that vintage. They are a 70 mile trip for me on back roads. Turn around times are usually a couple days without extra charges and they have never failed me and charge a lot less than places like T.I.E.

Fanuc Part Exchange, Repair & Testing Specialist
 
Yeah, but I get someone like that on the horn for specific info, I feel obligated to buy from them.
Thus why I am asking here first.

I just called them [per your rec] last week for a Siemens motor rebuild, but the voice there said "Fanuc only".
So I ended up sending it to a TIE facility in Detroit.


------------------

Think Snow Eh!
Ox
 
That's a pretty obscure board. I have the "S type" description manual and it's not in there. Alarm 12 is 90% of the time a shorted transistor module in the high power side of the drive. If you get a replacement drive, you will need to set the parameters from the old drive into the new using the 4 button panel on the drive. There will be some jumpers that need to be compared and set as needed and you should put your original ROM chip on the new unit. The oddball board should then work on the new drive.

If it were me, I'd check for a shorted module and replace that before going with a new drive. I'd say it is extremely unlikely that the alarm 12 has anything to do with the oddball board. Sometimes a bad main board on the drive will toast a module and cause alarm 12, but pretty rare. More frequently the failure of a module causes damage to the drive main board. Then when you replace the toasted module the alarm changes to 2 for speed deviation.
 
I was considering opening it up to see if that was the trouble as well.
Thank you for that.
I will go ahead and give that a go.
I have had decent luck in the past by changing those out and everything else OK.

Except yesterday on my Phase Perfect.
Blew the new ICBM, LGBT, BLM, RNC, IRA, NAFTA, or whatever that plastic puck with warrs is ....


----------------

Think Snow Eh!
Ox
 
I was considering opening it up to see if that was the trouble as well.
Thank you for that.
I will go ahead and give that a go.
I have had decent luck in the past by changing those out and everything else OK.

Except yesterday on my Phase Perfect.
Blew the new ICBM, LGBT, BLM, RNC, IRA, NAFTA, or whatever that plastic puck with warrs is ....


----------------

Think Snow Eh!
Ox

What size PP? I have a few spare IGBTs for them and could send you one if its the correct one. It's not uncommon for them to take the gate driver with them when they go bad as they often fail closed.

If you attempt to repair the drive I would also check the gate driver.

I am far from an expert but if you want some help attempting to repair them shoot me a PM and I'll send you my number.
 
Have you given Tennessee Industrial a call? There's a guy there named Tim Sullivan that's pretty good. And they have a warehouse full of Fanuc stuff.

Automation Parts | Repairs| Robotics | TIE Industrial



I am very aware of Tim and I have him on speed dial.
...OK - so his direct e-mail is in my address book.

But - like I said above - I don't want to contact someone like him until I am expecting to go that route.

I am used to paying $1500 for rebuilt 2 axis servo drives. But then one day I needed an Alpha version of this same amp, and expecting it to be in the $1500 neighborhood, after he helped me diagnose it (or at least qualify that it DOES appear to be this amp) they quoted me >$3000 for a rebuilt spindle drive.

UGH!

So I found a nice one on Ebay only an hour+ away for my expected price range, and it was actually only a cpl years old.
So that is where we went...

But then the next time I checked back in with Tim, he asked me about what happened with the spindle drive that we quoted to you last time?

I am really wanting to avoid that again!
Not that I haven't done a lot of business with them over the years, but still ....

And I have a motor at their Detroit facility now and expect that I will likely send more stuff that direction in the future.
(Motors and non-Fanuc stuff)



-----------------

I am Ox and I approve this h'yah post!
 
Except yesterday on my Phase Perfect.
Blew the new ICBM, LGBT, BLM, RNC, IRA, NAFTA, or whatever that plastic puck with warrs is ....


----------------

Think Snow Eh!
Ox


Careful... Blow an LGBT and it's a slippery slope...
 
I am used to paying $1500 for rebuilt 2 axis servo drives. But then one day I needed an Alpha version of this same amp, and expecting it to be in the $1500 neighborhood, after he helped me diagnose it (or at least qualify that it DOES appear to be this amp) they quoted me >$3000 for a rebuilt spindle drive.

UGH!

So I found a nice one on Ebay only an hour+ away for my expected price range, and it was actually only a cpl years old.
So that is where we went...

But then the next time I checked back in with Tim, he asked me about what happened with the spindle drive that we quoted to you last time?

T.I.E. actually called me a week after they quoted me on something and I just told them the truth. They wanted $1600 for a dual axis drive repair and without paying expediting charges quoting a 14 day lead time. I got it done for $1,000 in 2 days, at CNC Electronics. They seem to have gotten more aggressive with marketing lately.
 
Nothing against them other than I found a place that can usually beat their prices and lead times by quite a bit, who hasn't done me wrong yet. As for done me wrong I wouldn't use Radwell if they repaired items free of charge.


Bad experience (1? more?) with them?


--------------

I am Ox and I approve this h'yah post!
 








 
Back
Top