M&M RWB series - Page 44

Standard Screw Compressor - RWB Series
3-10
M&M R
EFRIGERATION
I
NC
.
Time Proportional Control Strategy Diagrams
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Load Deadband
Unload Deadband
Unload Bandwidth
Load Bandwidth
Control Setpoint
Pressure Difference
Below Setpoint
Pressure Difference
Above Setpoint
No Slide Valve Movement
No Slide Valve Movement
Slide Valve Movement Time
Computed Based on
Pressure Difference
Slide Valve Movement Time
Computed Based on
Pressure Difference
Continous Load
Continous Unload
Short Pulse
Long Pulse
Slide Valve
Movement Time
Pressure Difference from Setpoint
Deadband Bandwidth