Operation Description Of Hmi - Liebert DM User Manual

3.3.5 Operation Description Of HMI

Initial Interface
The LCD will display alternately 'F01' and the bigger one of condensing pressure 1 and condensing pressure 2 when
the fan speed controller is powered on initially. The 'F01' is the maximum pressure logo. However, the pressure value
will be displayed as '88.8' on the LCD upon the following occasions:
1. The pressure sensor is not installed,
2. The short jumper cap of current pressure sensor is not installed.
3. The pressure sensor is disabled.
The show order is shown in the following figure (the '16.1' is only an example, and the actual value is determined by
the sampling result).
Main Menu Interface
Press the ESC key on the initial interface, the main menu interface will appear on the LCD. The main menu interface
includes the analog main menu interface, current alarm main interface, historical alarm main menu interface and
configuration main menu interface. Press the UP key and DOWN key to select the different main menu interface, and
press the ENT key to enter the submenu of the current main menu on the main interface. The switching operation
processes and orders of the main menus are shown in the following figure.
Analog main
menu interface
F01
DOWN key
- -
F A
UP
Current alarm
key
main interface
Liebert_DM 16kW Air Conditioner User Manual
16.1 F01
DOWN key
- - - -
H
UP
Historical alarm main
key
menu interface
DOWN key
UP key
Chapter 3 Electrical Installation
16.1
DOWN key
- -
C
UP
Configuration main
key
menu interface
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