PXR3 Instruction Manual - Coulton Instrumentation

Cooling-side proportional band coefficient (Option: Available for DUAL output only) (Setting range: 0.0 to 100.0)[Description]• This parameter is used for setting the cooling-side proportionalband. (See the figure below.)OutputHeating sideCooling sideCoefficient: 0.5Coefficient: 1.0Coefficient: 2.0• When is set to 0.0 and is set to 0.0 in the dualoutput type, the cooling output is as shown in the figurebelow. The hysteresis is fixed at 0.5%FS.Heating output (Output 1)Cooling output (Output 2)ON 0.5% 0.5% ONHeating-sideproportionalband50Cooling-sideproportionalbandMVOFFHYSSVDBOFFPVProportional band (P)• Before setting the cooling-side proportional band, set theheating-side proportional band to an optimum value. Toselect the two-position control for the cooling side, setto 0.0.Related parameters: (page 23)(page 20)Cooling-side Proportional band (P)=proportional band 2× CoefficientEx) When making the proportional band of 10% of thefull scale with the proportional band (P) being 50%:50%10% = × Coefficient2Consequently, the coefficient is 0.4.[Setting example] Changing the cooling-side proportional band coefficient from 1.0 to 2.5DisplayPV indicationSV indicationPV indication1.2.3.4.5.6.Press and hold the SEL key for three seconds.will be displayed.Press the key to display .Press the SEL key once.The current setting ( ) will be displayed.Operating procedurePress the or keys to flicker and to display .Press the SEL key once. will be displayed and 2.5 will be registered for . After that,the controller will operate with the being 2.5.(Repeat the procedure from 3 to 5 to check the set value.)If you want to display the operation status, press and hold the SEL key for two seconds.The SV will be displayed on the display area.If unoperated state continues, the PV will be displayed.24