CTI 2500 - PID loop programming

electro89

Member
Join Date
Mar 2012
Location
Canada
Posts
106
I'm having trouble programming a PID loop in 505 workshop. Are there any examples out there of how to program this, or how it even works? I got a document that was made by Siemens explaining everything, but it doesn't really show examples.

My application is a conveyor belt feeding material into a crusher. The belt is run by a VFD (reading frequency) and the crusher is run by a 40A soft starter (reading current). We want to be able to set a setpoint current and have the belt speed up/slow down to maintain this current. The higher the current, the lower the frequency, and vice-versa.
 

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