GB
2.4.4
Controller
The controllers are regulating units for the adjustment of refrigeration functions and operating data. They enable
readouts of system messages and diagnostic data. The controllers have a service interface which enables various
configurations. There is also a connection for collective fault indications
Pos
Control panel
1
Green LED light
LCD display
2
(4-digit)
3
BACK button
4
SCROLL UP button
SCROLL DOWN
5
button
6
SET button
Cooling units with a multi-controller (MC) have a control panel with a green LED light (1) and an LCD display (2).
They are located on the unit cover. Permanent illumination of the green LED light (1) while the mains voltage is
connected indicates fault-free operation. System information is displayed in the LCD display. The following system
information can be displayed:
LCD display
In case of an operating fault or a malfunction, the gray LED light (1) begins to blink and the LCD (2) displays error
numbers alternating with the temperature. For details, see
Operating Manual DTT 6601 Multicontroller (MC) 086100037 © Pfannenberg GmbH
1
2
Figure 8 - Multi-Controller (MC) control panel
Function
-
Displays the operating mode:
Permanently illuminated = fault-free / blinking = operational fault
-
Displays system information:
Temperature measuring unit, energy function, operating mode, system data,
error number and menu settings / menu items / menu level.
-
Activation of menu settings.
-
Jump back to the next higher menu level.
-
SCROLL UP through the menu items or display elements, in the current menu
level.
-
SCROLL DOWN through the menu items or display elements, in the current
menu level.
-
Selection of the current menu item.
-
Jump to the next lower menu level.
System information
Display – Temperature (°C/°F) of the regulating sensor in normal operating status.
Display – Stop mode execution. Door is open.
Alternating display with temperature and stop mode, with fault Er00. Display: StoP
Er00Temperature.
Display – Energy function execution, activated in energy-saving mode
Alternating display with temperature display (°C/°F).
Display – Error number when a fault occurs.
In case of a fault, the error number (Er01-Er15) is displayed alternating with
temperature (°C/°F). Exception, fault ER00: Display StoP Er00Temperature.
4
3
Error
messages .
5
6
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