Andrew Evenson
Member
Zezito,
Actually, the SCR firing packages we use have a onboard PID controller, which interfaces with the firing circuit to fire the SCR's(e.g. controls the firing angle). It is this PID controller we send our reference signal too, not the direct circuitry that controls the firing angle. I dont believe a PLC would be fast enough to do current control. Curent just has too fast of a time constant.
Andrew
Actually, the SCR firing packages we use have a onboard PID controller, which interfaces with the firing circuit to fire the SCR's(e.g. controls the firing angle). It is this PID controller we send our reference signal too, not the direct circuitry that controls the firing angle. I dont believe a PLC would be fast enough to do current control. Curent just has too fast of a time constant.
Andrew
