ACE Series Rack-Mount • 05145651A 11
Table 1. Interpreting LEDs in Operation Mode
Name
Numb
er
Color
Explanation (if lit)
ON
16
Green
Output voltage available at the rear outlets.
AC Input
1
Red
Line voltage is too high; UPS battery provides all power.
2
Green
Line voltage is normal; AC input provides all power.
3
Green
Line voltage is lower than normal; AC input provides all power.
4
Red
Line voltage is too low; UPS battery provides all power.
Site Wiring Fault
5
Red
Ground wire connection doesn’t exist, or the line and neutral wires are reversed in the socket.
Battery Charge
6
Green
Batteries are fully charged.
7
Green
Battery charge is approximately 2/3 of full charge.
8
Green
Battery charge is approximately 1/3 of full charge.
9
Red
Low battery charge; there are approximately 3-5 minutes of battery backup remaining. If the
battery shuts down before AC input is restored, the load also shuts down.
Battery Service
10
Red
Potential battery failure.
Load Level
11
Red
Load current exceeds full load.
12, 13, 14
Green
The amount of load current or watts. Each LED represents 1/3 of a full load rating. When all three
LEDs are green, the load is approximately full.
Communication
15
Green
The UPS has received a command from a computer to establish communication.
(Flashing)
Data is being transferred via the Communication Port.
Putting the UPS in Standby Mode
To put the UPS in Standby mode, press the OFF/Standby button. In
Standby mode, the battery recharges when necessary, but power is no
longer available at the rear receptacles.
Initiating the Self-Test
Press the Test/Alarm Reset Button for three seconds to initiate the self-
test. During the test, individual LEDs turn on as various parts of the
UPS are checked. If the UPS finds a problem, an LED turns on to
indicate where the problem is. For more information, see Section 5,
Troubleshooting.
NOTE
Batteries must be at least 90% charged (LEDs 6, 7, and 8 must be on) and the unit must be off battery, to
perform the self-test.
Summary of Contents for ACE Series
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