167
Type 8692, 8693
english
General Rules - Appendix
General Rules (Appendix)
TABLE OF CONTENTS
1 SELECTION CRITERIA FOR CONTINUOUS VALVES ................................................................................................................................168
2 PROPERTIES OF PID CONTROLLERS ..............................................................................................................................................................170
2.1 P Portion ..............................................................................................................................................................................................................170
2.2 I Portion ...............................................................................................................................................................................................................171
2.3 D Portion .............................................................................................................................................................................................................172
2.4 Superposition of P, I and D Portions ....................................................................................................................................................173
2.5 Implemented PID Controller .....................................................................................................................................................................174
2.5.1 D Portion with Delay .........................................................................................................................................................174
2.5.2 Function of the Real PID Controller ..............................................................................................................................174
3 ADJUSTMENT RULES FOR PID CONTROLLERS ........................................................................................................................................175
3.1 Adjustment Rules according to Ziegler and Nichols (Oscillation Method) .....................................................................175
3.2 Adjustment Rules according to Chien, Hrones and Reswick (Actuating Variable Jump Method) .....................176