Rockwell Servo Travel Modes

[Dustin11H3]

Can anyone explain the different Rockwell servo travel modes to me? I see three options under the setup: unlimited, limited, and cyclic.


I understand that unlimited is unlimited travel and the servo will continue to run it's position as far as you'll let it.
I also understand cyclic meaning you can setup the axis to rollover back to zero at a set position (say 360 degrees).


Where I'm confused is the limited mode. I don't understand what it's for nor have I figured it out through experimentation. I reach out to RA support (they didn't know and are getting back to me), Google, and RA Knowledgebase to no avail. Any insight would be appreciated.

 

[lanman]

From 'Integrated Motion On The Ethernet/IP Network" reference manual, page 499

Unlimited travel is for axes that run continuously without limit but are not cyclic.

Cyclic travel is for axes whose position repeats as part of a
product cycle.

Limited travel is for axes that have imposed limits to their travel, usually due to
mechanical limitations