Posted 30 May 2023 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 Share this post Link to post Share on other sites
Posted 31 May 2023 I'd guess V_SP" the setpoint with warm-up ramp with a value of 58? Just guessing. Share this post Link to post Share on other sites
