Fanuc retrofit retaining original AC servo motors and drives

PCW:
I am switching to Fanuc A06B-6050 analog servo drives. Should I be able to drive these from a 7i48?

Todd:
Thanks, I hadn't looked at that whole section of cards. I assume I just need a 7i44 RS422 daughter card to talk to them?
Yes, the Fanuc I/O is 24 volt, but I was planning to use opto-isolators to interface to the 5 volt. The serial cards will simplify that.

Yes, a 7I48 will work, another option is (instead of 7I48+7I44)
7I52 for 6 encoder input and
6 Sserial channels:
--> 7I83 for analog
--> 7I84 or 7I84D for digital

This has the advantage of isolation of the analog outputs

Thanks. That looks like a good option. There is no speed performance problem with sending all the analog commands through serial?

No, there are no significant delays with sserial (at least relative to 1 to 4 KHz servo thread)