PLUS+1 User Forum

PLUS+1™ Software => Code sharing => Topic started by: Marbek_Elektronik on March 20, 2012, 03:44:07 PM

Title: stopping a PVE slowly
Post by: Marbek_Elektronik on March 20, 2012, 03:44:07 PM
HI,
the normal way to stop a valve of a crane, for example, is to use a time ramp.
If the time ramp is long enough the crane would stop slowly and does not produce a swinging of the machine.
But if the time is to long, the way of the crane is to long after the user wants to stop it.

Now my idea: Does anybody know another function then a time ramp?
What is the best way to stop a valve?
(I have PVEA to drive the valve)

Thanks.
Title: Re: stopping a PVE slowly
Post by: jsaluk on March 24, 2012, 05:38:00 PM
consider changing to a pressure control spool for the swing function.  Generally provides smoother control since you would be controlling torque rather than speed.  PVEA function block and ramps can still be applied
Title: Re: stopping a PVE slowly
Post by: Marbek_Elektronik on April 01, 2012, 09:40:16 AM
There are PVEA and PVEH installed. I can't change this.
So the valves are volume controlled.
I need an algorithmus to stop the valve comfortable but without to large way after I bring the Joystick in neutral position.