Chapter 4 Operation And Display Panel; Introduction; Led Indicators; Audible Alarm (Buzzer) - Emerson Liebert ITA User Manual

Chapter 4 Operation And Display Panel

This chapter introduces the functions and use of the components on the UPS operation and display panel, and
provides LCD display information, including the LCD screen types, detailed menu messages, prompt windows
message and UPS alarm list.

4.1 Introduction

The operation and display panel is located on the front panel of the UPS. Through the operation and display panel,
you can conduct the operation and control on the UPS and query all the UPS parameters, UPS and battery states,
and alarm message.
As shown in Figure 4-1, the operation and display panel provides LCD, menu buttons (F1 ~ F4, HELP), LED
indicators (inverter indicator and fault indicator), control buttons (FAULT CLEAR, ON, OFF, ALARM CLEAR, EPO).

4.1.1 LED Indicators

The LED indicators are composed of the inverter indicator and the fault indicator. Table 4-1 gives the indicators
description.
Indicator
Inverter indicator
Fault indicator

4.1.2 Audible Alarm (Buzzer)

The UPS operation is accompanied with the following two different kinds of audible alarms shown in Table 4-2.
Sound
One beep every other second
Continuous beep
Figure 4-1 Operation and display panel
Table 4-1 Description of LED indicators
Color State
On
Green Blinking
Off
Blinking
Red On
Off
Table 4-2 Audible alarm description
Sound is generated when the UPS alarm appears, such as AC input failure
Sound is generated when the UPS fault appears, such as fuse or hardware failure
Liebert ITA 16kVA And 20kVA UPS User Manual
®
Chapter 4 Operation And Display Panel
Load power is supplied by the inverter
Inverter on, starting up, synchronizing, or standing by (ECO mode)
Inverter not operating
General fault (such as no battery)
Serious fault (such as inverter fault)
No fault
Meaning
Meaning
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