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VDL (E3.1) 10/2020 Page 79/196
8.4 MB2 controller operating modes
The MB2 program controller operates in the following operating modes:
• Fixed value operating mode
The controller operates as a fixed-point controller, i.e., set-points for temperature and pressure can be
defined, which are then maintained until the next manual change (chap. 10.1.1).
• 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 for temperature and pressure is running. The controller offers 25 program
memory places with 100 program sections each. The total number of program sections of all programs
is unlimited
• Week program operation
An entered week program for temperature and pressure is running. The controller offers 5 program
memory places with 100 switching points each. The switching points can be distributed over all days of
the week.
8.4.1 MB2 controller menu structure
Use the navigation icons in the screen footer in
Normal display to access the desired controller
functions.
The available functions depend on the current au-
thorization level “Service”, “Admin” or “User”
(chap. 12.1. This is selected either during login or
can be available without password protection.
Main menu: program settings, further information, “Service” submenu.
The “Settings” submenu allows general configuration of the controller.
chap. 8.4.2
List of active alarms chap. 16.2
Access to the event list chap. 13.5
Setpoint entry for Fixed value operation, Standby mode, turning on/off
temperature and/or pressure control, safety controller settings
chap.
10.1.1,
11.5, 14.2.2
Start/ pause/ cancel an already entered, respectively a running time
program or start / cancel an already entered, respectively a running
week program
chap. 18.1,
18.2, 19.1
Unless noted otherwise, the figures show the functional range, which is available for the user with “Admin”
authorization level.
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