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Chapter 4 Operator Control And Display Panel 27

Liebert APM Modular UPS User & Installation Manual

4.1.4 LCD And Menu Keys

The operator control and display panel provides an LCD and five menu keys (F1, F2, F3, F4, F5). The menu keys are

described in Table 4-5.

Table 4-5 Menu key description

Function 1

Function 2

F1 F2 F3 F4

ESC

Escape

Left

Right

Down

Enter

Key F5

HOME

Providing 320×240 dot matrix graphic display, the user-friendly and menu-driven LCD allows you to easily browse

through the input, output, load and battery parameters of the UPS, learn current UPS status and alarm information,

perform functional setting and control operation. The LCD also stores up to 512 historical records that can retrieve for

reference and diagnosis.

4.2 LCD Screen Types

4.2.1 Start Screen

Upon UPS start, the UPS executes self-test, and the start screen appears and remains approximately 15 seconds, as

shown in Figure 4-2.

F2 F3 F4

Figure 4-2 Start screen

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Emerson Liebert APS Installationshandbuch Seite 35