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11.
Programming example of the Week Program Editor
11.1
Desired time function
From Monday to Friday the chamber shall maintain a temperature of +20 °C, and during the week-end
(Saturday and Sunday) a temperature of +5 °C.
This program shall automatically run during the whole year, i.e. it shall be programmed just once.
11.2
Proceeding overview
1. Settings in the user level (see chap. 10)
• Set 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).
• Activating the week program timer
• Checking and, if necessary, setting the real time clock
2. Enter the set-points for the week program in Fixed value entry mode (see chap. 6)
Set-points for the example program:
• SP 1 (night / weekend) = 5 °C
• SP 2 (day / week) = 20 °C
3. Enter the time program to the week program editor (see chap. 7)
Program table for the example program:
Day of the week
Time
hh:mm
Channel 1 (temperature)
AM
PM
ON = SP2
OFF = SP1
Monday
S1
06:00
ON
Friday
S1
20:00
OFF
Make sure that no other shift points have been preprogrammed. If so, they must be deleted:
Set the time of the respective shift point to “ --:-- ” using key
11.3
.
Proceeding in detail
1. Settings in the user level:
• Set safety controller to “Limit” and 3 °C above the maximum temperature value of the program
• Activating the week program timer
• Checking and, if necessary, setting the real time clock
KB (E3.1) 08/2012
page 45/84