ABB IRB 6400 retrofitting

Ok i see, u r talking about the IRAM256-2067A2.
There are some of that modules from china but they're costly.

I repaired few inverter and drives and most of the time they use integrated igbt bridges (except some ABB stuff), because designing a proper igbt driver stage + discrete igbt bridge is not so easy. Maybe exists an pseudo equivalent to that IRAM.
I definitely have to take a deeper look to the project.

I can order few pcb's, order a paste mask, clean the rust from mine pick&place and reflow oven and flash some micro.

So you confirm me that drive works well, comparably to standard industrial drive? I saw the videos on Youtube and seemed good!

Freak wrote: So you confirm me that drive works well, comparably to standard industrial drive? I saw the videos on Youtube and seemed good!

I have no real experience with industrial drives, and not all that much with the STMBL.

I have 2 x 8i20 in my lathe, 3 x 8i20 and 1xSTMBL in my mill and 5 other STMBLs waiting for the right project. That's the sum total of my experience.

But if you have a PnP machine, making your own STMBL is probably less intimidating. Some people have hand-built them, but most have regretted starting.

andypugh wrote: Some people have hand-built them, but most have regretted starting.

ahaha I know that feeling... Ok that's great and you noticed some performance difference between 8i20 and STMBL?

Doing a rapid search I find IKCM30F60GA to be a good candidate for IRAM replacement.

Just a brief update: I'm editing the stmbl schem-pcb-firmware to accomodate a much efficient and powerful on-semi integrated bridge (FNB34060T) and bigger caps.
So i had to modify the temperature reading, shunt resistors and other minor changes, but this bridge can delivery 4kW of power, with the same pcb form factor!
As soon I'll have the first prototype ready I'll post some news!

very nice.
I use the stmbl on a fairly large okuma lathe (ac servos).
They work very nicely once setup.
I don't use the lathe for production though so don't push them too hard.

@Freak,
nice, thank you.