Binder KB 23, Operating Manual

Page: 51 / 87

KB 23 / KB 23-UL (E3.1) 02/2019 page 51/87
12. Programming example of the Program Editor
12.1 Desired time function
From Monday to Friday the chamber shall maintain a temperature of +20 °C / 68°F , and during the week-
end (Saturday and Sunday) a temperature of +5 °C / 41°F .
This program shall automatically run during the whole year, i.e. it shall be programmed just once.
12.2 Proceeding overview
1. Settings in the user level (see chap. 10)
•
Setting the safety controller to “Limit” and 3 °C above the maximum temperature value of the
program
The temperature set-point of the safety controller (over temperature protection class 3.1) is displayed
and can be changed. You can enter an absolute value in case of setting “limit”, or a relative value in
case of setting “Offset”. Select setting “Limit” and enter a value by 3 °C above the maximum value (i.e.,
23 °C /
73.4°F ).
•
Setting the maximum section duration (Prg. Time) to 999 hs. 59 min.
The maximum length of a program section can be set – in common for all program sections – to 99 hs
59 min or to 999 hs 59 min. Select setting 999:59.
When changing the maximum duration setting, pre-existing programs will be deleted in
the program editor.
•
Switching off the tolerance limits function
Select setting “0” meaning tolerance limits off. Thus an interruption of the program course during the
heating-up or cooling-down phases during the rapid “set-point step” phase is avoided.
•
Deactivating the week program timer
Deactivate the week program timer before entering a program (factory setting). Otherwise, any setting
of the operation lines in the program editor is ineffective.
2. Entering the time program to the program editor
Program table for the example program:
Section
SEC
Temperature
set-point
[ °C]
TEMP
Section length
[hh.mm]
TIME
Fan speed
[%]
FAN
operation lines
O.LINE
S01 20 119:59 100 000
S02 20 000:01 100 000
S03 5 047:59 100 000
S04 5 000:01 100 000
Make sure that there are no more program sections (S05 etc.) existing due to previous
programming. If so, they must be deleted (see chap. 8.4)