IGBT module replacement questions

[Cgmaster1]

First let me say I am not an electronics technician by any means. I do have the equipment to test and make repairs and know just enough to be dangerous.
Posted in another section as well.

I have a YAsakawa VFD that has a bad IGBT module.

The old IGBT is 2MBI200N-060-10. I Know what everything means except for the -10 at the end.

After reading It looks like this is an old model and there are several newer modules. I have found Fuji 2mbi200u2a-060-50 new for about the same price. Supposedly the ones  I have in my VFD are like 2nd generation and the fuji 2mbi200u2a is a 5th generation.  Can I use this as a replacement? IF I do do I need to replace all 6 modules? I am fairly new to working on electronics but am a fast learner. I have been reading through Fuji's information but could not find a definite answer. In addition the -50 at the end I could not find what it means.

I plan to replace all 6 but want to know if I keep the old ones for backups if one goes bad in the future.

[duak]

One would have to go over the data sheets and compare the specs for any differences.  I would bet the new parts are faster and perhaps more efficient and may require some adjustment in gate drive characteristics. The -10 vs -50 might mean packaging or pinout variations.

I recently repaired a Yaskawa spindle drive with a dead output six pack.  The first replacement lasted a month.  It took a while to find, but one of the Mitsubishi hybrid drivers on the PCB was out of spec and was giving an anomalous drive signal to the output devices.  I don't have any schematics or repair info from Yaskawa but I managed to simulate the drive signals to the output stage and then used an oscilloscope to find the blinky driver.  I then tested the drive at low voltage before putting it back in the machine and firing it up for real.  Does your VFD's PCB have 6 or 12 black rectangular parts about an inch square?

I would save all the parts.  Do you know how to check for a shorted IGBT with an ohmmeter?  Also, you mentioned six modules but they are different - have some been replaced already or are they as they left the factory?  Many Yaskawa VFDs are regenerative and have one set of modules for the converter and another for the inverter and perhaps they used different types.

I got the replacement parts from some place in New York state thru ebay.  They seem to have a bunch of parts for repairing Yaskawa drives.