APC 600 - Manual (Page 17)

15
5.0 Operation
5.1 Display features
5.1.1 On Line indicator
The On Line indicator lights when the load is being supplied conditioned
power from the utility service. This indicator blinks during the self-test.
5.1.2 On Battery indicator
The On Battery indicator lights when the load has been transferred to UPS
battery power, and the utility voltage is not within specified limits.
5.1.3 Overload indicator
The Overload indicator lights when the load exceeds the UPS’s rating of
600 VA (400 W).
5.1.4 Low Battery indicator
The Low Battery indicator lights when less than 2 minutes of backup power
are available from the battery (or 5 minutes; see Sec. 5.5.4).
5.1.5 Replace Battery indicator
The Replace Battery indicator lights when the UPS’s battery fails the self-
test. The indicator turns off after a successful self-test.
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LED
indicators
see Sections
5.1.1–5.1.5,
5.2–5.3
Test button
see Sec. 5.1.8, 5.2
Power standby
button
see Sec. 5.1.7
Alarm disable
button
see Sec. 5.1.9, 5.3
Power on
button
see Sec. 5.1.6