MK / MKT (E5) 03/2019 page 33/158
5.4 Operating modes
The MB2 program controller operates in the following operating modes:
• Idle mode
The controller is not functional, i.e., there is no heating or refrigeration. The fan is off. The chamber
approximates ambient values.
You can activate and deactivate this operating mode with the “Idle mode” control contact in Fixed value
operating mode (chap. 7.3), time program operation (chap. 9.7.3) and week program operation
(chap.10.6.5).
• Fixed value operating mode
The controller operates as a fixed-point controller, i.e., set-points can be defined, which are then main-
tained until the next manual change (chap. 7.1).
• Timer program operation
Stopwatch function: during an entered duration the controller constantly equilibrates to the setpoints
entered in Fixed value operation mode.
• Time program operation
An entered time program is running. The controller offers 25 program memory places with 100 pro-
gram sections each. The total number of program sections of all programs is unlimited
• Week program operation
An entered week program is running. The controller offers 5 program memory places with 100 switch-
ing points each. The switching points can be distributed over all days of the week.
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