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Section 2 • Operational Descriptions
Single Screw Compressor PLC Operation Manual • Vilter/Emerson • 35391CM
-LOWER PROPORTIONAL BAND
-LOWER PROPORTIONAL DEADBAND
+UPPER PROPORTIONAL DEADBAND
+UPPER PROPORTIONAL BAND
TARGET
MAX LOAD PER
INTERVAL (%)
LOAD INTERVAL
CYCLE TIME
(SECONDS)
MAX LOAD PER
INTERVAL (%)
UNLOAD INTERVAL
CYCLE TIME
(SECONDS)
COMMANDED CAPACITY
SLIDE VALVE POSITION
ACTUAL
PRESSURE
Figure 2-3. Operational Diagram - Capacity Slide, Discharge Pressure (Example)
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