Forum Migration Notice
Update (2026-01-21): The user forums are now in read-only mode pending the data migration.

Update (2026-01-12): The user forums will be put into read-only mode on the 21st of January, 00:00 CET, to prepare for the data migration.

We're transitioning to a more modern community platform by beginning of next year. Learn about the upcoming changes and what to expect.

Ramp down speed for turtable

gregf
gregf ✭
in RAPID Programming
Hello all,
I have a robot controlling an external axis which is a turntable.
We can manage the continuous rotation speed ramp up with the IndCmove function and \Ramp. However it seems to only modify the increase of speed, for example from 20 rpm to 50 rpm. If I want to change the decrease of speed, for example in some cases I want to go from 50 rpm down to 20 rpm in 10 sec and for another case in 30 sec, nothing changes if I change \Ramp.
It looks like Ramp only has an impact when we increase the turntable speed. 
Any idea why?

Thanks

Comments

  • lemster68
    lemster68 ✭✭✭
    Ramp will DECREASE the deceleration, as well as acceleration.  Maybe omit Ramp on the slowing down, or play with the values.  As far as I know, there is no dynamic braking involved.  Our tables take quite a while to slow down from high speed, I suppose from the inertia.
    Lee Justice

Categories

In this Discussion