
38
User Manual 10H52188UM51 - Rev. 1 - 09/2011
Operation and Display Panel
Liebert NXC
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 UPS operation control 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).
Figure 4-1 Operation and display panel
4.1.1
LED Indicators
The LED indicators are composed of inverter indicator and fault indicator. Table 4-1 gives the indicators description.
Table 4-1 Description of LED indicators
Indicator Colour
State
Meaning
Inverter indicator
Green
On
Load power is supplied by the inverter
Blinking
Inverter on, starting up, synchronizing, or standing by (ECO mode)
Off
Inverter not operating
Fault indicator
Red
Blinking
General fault (such as no battery)
On
Serious fault (such as inverter fault)
Off No
fault
4.1.2
Audible Alarm (Buzzer)
The UPS activity is accompanied with the following two different kinds of audible alarms shown in Table 4-2.
Table 4-2 Audible alarm description
Sound Meaning
One beep every second
Sound is generated when the UPS alarm appears, such as AC input failure
Continuous beep
Sound is generated when the UPS fault appears, such as fuse or hardware failure
LCD
Menu buttons
Control buttons
Fault indicator
Inverter indicator