- CONTROLLER OUTPUT IN PERCENT.
Controller output % = current output - minimum output X 100
maximum output - minimum output
- MEASURE VALUE AS PERCENTAGE
Measure value in % = MV - minimum MV X 100
max MV - minimum MV
- SET POINT AS PERCENTAGE VALUE
Set point % = SP - min value X 100
max value - min value
- ERROR AS PERCENTAGE VALUE
Error point % = % SP X MV X 100
max value - min value
- PROPORTIONAL BAND
Proportional band , PB = 100
proportional gain , KP
PB = 100
KP
- CONTROLLER OUTPUT
P = Kp*Ep X P(0)
- POSITIVE ERROR BAND
Positive error band = max permissible positive error X100
temp range
- NEGATIVE ERROR BAND
Negative error band = max permissible negative error X100
temp range
- PROPORTIONAL CONTROLLER
E = SP - MV
P(i) = KP*EP + P(0)
No comments:
Post a Comment