APC 420 VA, SC620, 620 VA, 110 VAC user manual Front Display Panel, Operation, On Line

3: OPERATION

	Front Display Panel
110/120 V		230 V

INDICATOR	DESCRIPTION
On Line	The UPS is supplying utility power to the connected equipment.

On Battery

The UPS is supplying battery power to the connected equipment.

Overload

The connected loads are drawing more than the UPS power rating.

Replace Battery

The battery must be replaced.

FEATURE		FUNCTION
Power Button		Press this button to turn the UPS on or off. (Read on for additional capabilities.)
Self-Test		Automatic: The UPS performs a self-test automatically when turned on, and
		every two weeks thereafter (by default). During the self-test, the UPS briefly
		operates the connected equipment on battery.
		Manual: Press and hold the	button for a few seconds to initiate the self-test.
Cold Start	Supply battery power to the UPS and connected equipment in the absence of
	utility voltage (see Troubleshooting). Press the			button for one second and
	release. The UPS will beep briefly and go quiet. Press and hold the button again,
	but for approximately three seconds. The unit will emit a sustained beep. Re-
	lease the button during this beep.

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