kenny powers

I did notice this, but didn't see anything in that application example that seemed to specifically require the T, am I wrong? 

Yes, the technote that contains much of the info I'm using is from QA58907. I think I have a pretty good grasp on it all now, including the tuning requirements, thanks! I'm trying to minimize the amount of unforeseen setup issues ahead of time as this will be a retrofit on a currently in-production line (currently using SEW MD60s). The issue I'm concerned with comes from the above mentioned technote:  Related Anomalies:In firmware version 6.002 and earlier, if the leader drive is run  without the follower drive, when the follower drive is finally run it will try to advance to the position the leader drive moved to while the follower was stopped.  If both leader and follower are run simultaneously the follower will overspeed  by the threshold set up in  Port 10 Parameter 1766 [PReg Vel Limit Pos] or Port 10 Parameter 1768 [PReg Vel Limit Neg] depending on the direction.  To avoid this anomaly, cycle power to the follower drive if the leader was run while the follower was stopped. This anomaly has been corrected in firmware 6.003 and later.

Thanks for the info guys. From what I've read at Rockwell after posting here, as long as the drive's firmware is newer (it will be), the problems that occurred when running the master alone have been taken care of. I tried getting someone at Rockwell to confirm this won't be a problem but I suppose this application is too specific for anyone to know for sure. Also, the drives WILL be using Induction FV mode, so this means inertia tune is needed? I will go read on what this entails.  

I'm about to tackle a project that involves synchronizing two  turntable's rotation together. I will be using two PF755 drives, one with a dual encoder board and the other with a single encoder board. Each table will have a motor with encoder directly mounted to shaft. The master drive will have the dual board and utilize encoder feedback from both table's motors. The slave will only use it's own encoder.   I've found an example somewhat similar on Rockwell's technotes that outlines the parameters I will need to make this happen. There are differences with gearbox ratios on the motors, which the techconnect note also details how to handle. So, the remaining questions I have are: I assume tuning the drive(s) will be necessary. Will a static tune suffice? Also, the technote states the drives will fault if start/stop procedure is not properly followed. The slave drive must be issued the start command before the master, and when stopping the master must stop first. For this application, occasionally the slave table will not be needed. Will running the master alone be a problem?

I think the 1203-USB to DPI adapter is my only option... 

I feel like I should know how to do this, but I'm stumped. After replacing a VFD and attempting to copy params via the HIM module I got a incompatibility fault. The parameter list is very large, I'd rather not attempt to manually program. The drive is using a COMM-R remote IO interface. How do I connect to this with the pc?