YME Engineering Course

I. REGULATORY CONTROL FUNCTION BLOCKS
• No-Conversion Output
The manipulated output value (MV) resulted from the controlcalculation
process is No Conversion output.
• Pulse Width Output Conversion
The changes of manipulated output value (∆MV) is output after
converted into a pulse width signal.
• Communication Output Conversion
The manipulated output value (MV) resulted from the controlcalculation
process is converted into the format compatible with the
destination subsystem.
♦ Tight-Shut Function and Full-Open Function
The Tight-shut function fully close an operation valve and the Full-open
function fully open it when a manipulated output value (MV) is 0% or 100
%. With these functions, an actual tight-shut output value (Ms) is set to a
value less than 0% or greater than 100%, fully closing an operation valve.
And an actual full-open output value (Mf) is set to a value less than 0% or
greater than 100%, fully opening the valve. When set “No” to “Tightshut/full-open
Specifications”, these functions are not added.
Figure: Tight-shut function
Define the Tight-shut/full-open specifications, as below.
• Tight-shut/full-open Specifications:
Choose “Yes” or “No.”
The default setting is “Yes.”
• Output Value for tight-shut (Ms):
The actual output value for tight-shut
Setting range is -17.19 to 117.19 % (5 significant figures). Default is
-17.19 % for direct output setting, and -6.25 % for reverse output
setting.
• Output Value for full-open (Mf):
The actual output value for full-open
YME Training Center I-7
CS3KR3-ENG 1 ST Edition Jan 2002