Lumel RE82 User Manual

Lumel RE82 User Manual Manual pdf 60 page image

6013.3. Control of the Set Point Value ProgramWhen the sPmd parameter is set on prg, the controllercontrols the object in compliance with the set point value changingin time acc. to the given program. Before starting the controlwith the changeable set point value, one must select the requiredprogram (parameter /prg).To start the program, one must press and ,push-buttons when the stop or End inscription appears on the lowerdisplay (fig. 27).The lighted dot in the right corner of the lower display, means thatthe programming control is lasting. During the program duration,one can display parameters of the realized program, i.e. program status,program number, number of the operating segment, the numberof cycles which still remains to carry out, time which goes byin the segment, time which remained to the end of the segment,time which remained to the program end.After finishing the program the dot is gone out, or the program is rene-wed, if the number of the program repetition Cy/n is higher than 1.After finishing the control, auxiliary outputs are in the state definedby parameters – output state for the segment set as the program end.When the parameter hold (locking in the program) is set on lo, Hior band and the locking value hldu in the operating segmentis higher than zero then, the size of the control deviation is controlled(set point value minus measured value). For hold=lo the locking isactive, when the measured value is below the set point value diminis-hed by the locking value. For hold=Hi the locking is active, whenthe measured value exceeds the set point value by the locking value.For hold=band the locking is active, as for the upper and lowerlocking. If the locking is active then, the counting of the set point valueis interrupted, and the dot in the right corner is flickering. The controllercontrols acc. to the last calculated set point value.