INFICON Guardian EIES Controller - Manual (Page 137)

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Guardian Co-Deposition Controller Operating Manual
Continue to Start the process and adjust PID until steady-state response is smooth
and the step response is reasonably controlled. It’s not necessary to totally
eliminate ringing during the step if the steady-state response is smooth.
Preconditioning will minimize step changes.
Once PID terms are established for a material, they will typically be similar for other
materials. Only the P Term and preconditioning power levels may need adjustment.