Rath Dalton

PiD Control question

2 posts in this topic

Hello,

          I have a function block that uses a PID control to operate a heater (actually a number of them).  The engineer who wrote this is gone and I have no experience with this particular utility.  The voltage on the heater ramps up from zero over a number of seconds (about 10 - 30 seconds).  We need to increase this time but I don't know which variable controls the time.  Would anyone be able to guide me in the right direction?  A PDF of the function block is attached.

Thanks for the help,

Rath  

Filament Control - FB1.pdf

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I'd guess V_SP" the setpoint with warm-up ramp with a value of 58?  Just guessing.

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