Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
04/22/05 19:23
Read: times


 
#92201 - HOT( hydraulik OT), Happily WEOT too
Responding to: ???'s previous message
Hi Raghu,


speed[time in sec)]
Start - 600[5] - 1000[4] - 600[3] - ramp up 4100[5]- ramp dn 2300[2]- 600[1] - stop
And during the above the pressure also cycles in its own independent loop.


Just curious Raghu , what is this application ?
In hydraulics the principal is always to control the flow for speed control and keep the pressure uncontrolled, subject to a maximum set.Obviously because if the speed drops say because of a load change ( increase ), you have to boost the pressure to bring up the speed. And vice versa for load/force control i.e. control the pressure and leave the flow uncontrolled.


Thomas

List of 11 messages in thread
TopicAuthorDate
Simple PID controller schematic            01/01/70 00:00      
   Why Analog Whynot Direct Digital Control            01/01/70 00:00      
      Why not DDC ?            01/01/70 00:00      
         RE:            01/01/70 00:00      
            Unique loads            01/01/70 00:00      
               Nothing as good as Analog.            01/01/70 00:00      
                  Copy of drawing            01/01/70 00:00      
               HOT( hydraulik OT), Happily WEOT too            01/01/70 00:00      
                  Pump develops flow and ...            01/01/70 00:00      
   Well Done            01/01/70 00:00      
      The next step..            01/01/70 00:00      

Back to Subject List