Emerson U /400/S/6P, U/300/S/12P, U /400/S/12P, 400KVA Buzzer, Control Buttons, LCD And Menu Keys

28	Chapter 4		Operator Control And Display Panel
		LED		State	Description
				Steady green	UPS output ON and normal
		Load LED		Steady red	UPS output ON and overloaded
				OFF	UPS output OFF
		Alarm LED		Steady green	Normal operation
				Steady yellow	UPS warning (for example, AC input failure)
		(STATUS)
				Steady red	UPS fault (for example, fuse or hardware failure)

4.1.2 Buzzer

The operator control and display panel provides a buzzer. UPS activity is accompanied by the following sounds.

	Table 4-2 Audible alarm description
Single beep		Direct access key acknowledgement
One beep per second		UPS warning. For example, AC input failure
Continuous beep		Fault. For example, fuse or hardware failure

4.1.3 Control Buttons

The operator control and display panel provides four control buttons, as described in Table 4-3.

		Table 4-3 Description of control buttons
Control button		Description
INVERTER ON		Pushing this button turns on the inverter.
		Note: If the inverter is not ready, pushing this button cannot turn on the UPS
INVERTER OFF	During UPS operation, pushing this button turns off the inverter and transfers the load to the bypass
FAULT CLEAR		In case the UPS shuts down due to fault, after eliminating the alarm conditions, pushing this button clears
		the fault
SILENCE		When an alarm is active, pushing this button silences the audible alarm. When a new alarm occurs
		afterwards, the buzzer will give audible alarm again. When there is no audible alarm, pushing this button
ON/OFF
		initiates the audible alrm test

Note

To activate the above control buttons, you are required to press and hold the buttons for approximately 2 seconds until a beeping sound is heard.

4.1.4 LCD And Menu Keys

The operator control and display panel provides an LCD and five menu keys (F1, F2, F3, F4, HELP). The menu keys are described in Table 4-4.

Table 4-4 Menu key icons and their meaning

Key	F1	F2	F3	F4	HELP
Function 1					?
	Shift	Left	Right	Enter	Help
Function 2	ESC
	Escape	Up	Down

The user-friendly and menu-driven LCD allows you to easily browse through the input, output, load and battery parameters, 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.

As shown in Figure 4-2, the LCD primary screen is divided into five windows: system information window, menu window, UPS data window, and current record window. Pressing the F1 key scrolls through the user-operable windows.

HIPULSE U UPS Single Module And “1+N” (Expandable) 160/200/300/400kVA User Manual