Emerson 480V Buzzer location, Sections of the LCD, UPS system, LCD menu, information, messages

Operator Control and Display Panel

8.4Audible Buzzer

The buzzer produces three types of sounds:

•Single beep - when any control button is pressed

•Single beep repeating every two seconds - the system has a general alarm

•Continuous - the system has a serious fault

If the buzzer makes no sound, the system may be operating properly, or an alarm may have been silenced manually.

Figure 49 Buzzer location

Buzzer

LED1

LED2 LED4 LED5

LED3

STATUS

Liebert NX		2007-01-06		09:20:37
80kVA-3X3		Single		Normal
	Main	Bypass	Output
L-N current (A)		L 1-N/L2	L2-N/L3	L3-N/L1
		71.4	70.8	71.3
Frequency (HZ)		59.9	59.9	59.9	EPO
L-L voltage (V)		480	480	480
PowerFactor		0.99	0.99	0.99	INVERTER OFF	FAULT CLEAR
Input disconnect closed			01-06 09:15
Output disconnect closed			01-06 09:15		SILENCE ON/OFF
Bypass abnormal			01-06 09:15
				?	INVERTER ON
F1	F2	F3	F4	HELP

8.5LCD Overview

The LCD on the front panel has five main sections, as shown in Figure 50. Press the F1 key below the LCD to scroll through these sections.

•UPS System Information - view UPS name and model, date and time, overall status (see Table 18).

•LCD Menu - choose a category of data items to appear below the menus (see Table 19).

•Data and Settings - view data items for the selected menu (see Table 19).

•Current Status Messages - check any active UPS event and alarm messages (see Appendix A).

•Navigation Key Icons - look at the icon above each navigation key to determine how the key operates when pressed (see 8.6 - Navigation Keys).

The LCD displays alarm information in real time. After appearing in the current status section of the LCD, status messages are stored in the history log—512 records can be stored and retrieved.

Figure 50 Sections of the LCD

	Liebert NX		2007-01-06			09:20:37	UPS system
LCD menu	80kVA-3X3		Single			Normal	information
		Main	Bypass		Output
			L1-N/L2 L2-N/L3			L3-N/L1
	L-N current(A)		71.4	70.8		71.3
Data and settings	Frequency(HZ)		59.9		59.9	59.9
	L-L voltage(V)		480		480	480
	PowerFactor		0.99		0.99	0.99
Current status	Input disconnect closed				01-06 09:15
	Output disconnect closed				01-06 09:15
messages	Bypass abnormal				01-06 09:15		Navigation
						?
	F1	F2	F3		F4	HELP	key icons
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