Ramp may be set to 1% which means all active motors jump to a fixed speed as fast as they can. I'm not sure which maximum parameters you are referring to. The speed for active motors depends on the run time that is set. I'll have to ask your maximum rotation limitation to our firmware developer. As part of the release regression test, I run 100 rotations for the slider. Pan would have the same motor rotation limitations as the slider or tilt, which is related to the number of encoder counts that can be stored. I know you can have 20 pan revolutions but off hand I don't know what that maximum number is. You can achieve continuous looping by setting Ramp to 1%. The only acceleration you would see is the motors jumping to their constant velocity as fast as they can.
Feel free to contact me at email@example.com if you have additional questions. I'll check with our firmware developer on the maximum revolution questions you've asked.