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Controls and Indicators
19
3.0 CONTROLS AND INDICATORS
The operation and display panel, shown in Figure 18, is on the front panel of the Liebert
®
GXT3
™
(see Figures 1 and 2).
Figure 18 Operation and display panel
3.1 Control Buttons
The operation and display panel has two control buttons: On/Alarm Silence/Manual Battery Test and
Standby/Manual bypass.
3.1.1 On/Alarm Silence/Manual Battery Test Button
The On/Alarm Silence/Manual Battery Test button controls output power to connected load(s) and
has three functions (see Table 3).
3.1.2 Standby/Manual Bypass Button
The Standby/Manual Bypass button controls output power to connected load(s) and has two functions
(see Table 4).
Table 3 Functions of On/Alarm Silence/Manual battery test button
Function Operation Description
ON Press the button once for 3 seconds To start the UPS
Alarm Silence
1
Press the button for at least half a second To silence alarms
2
Manual Battery Test
Press the button for at least half a second while
operating in Utility (AC) Mode with no alarms present.
To initiate a manual battery test
1. The low battery and bypass reminder alarms cannot be silenced.
2. After the alarm is silenced, UPS will reactivate the alarm system to alert of additional problems
Table 4 Functions of Standby/Manual Bypass button
Function Operation Description
Manual Bypass
Press the button once and hold it for about
2 seconds
1
To initiate a manual transfer of the connected
loads to the internal bypass, if available
Standby
Press the button twice within four seconds while
the UPS is in Manual Bypass or Battery Mode
2
To shut down the UPS and shut Off all power
to the connected loads
1. f the bypass is not available due to voltage or frequency, pressing this button once will be ignored.
2. Perform all necessary shutdown procedures on connected loads before turning Off the Liebert GXT3.
Liebert
®
GXT3
AC Power System
3000VA
Battery Level Indicators
Load Level Indicators
Bypass Indicator
Inverter Indicator
Battery Indicator
Standby/Manual Bypass Button
On/Alarm Silence/Manual
Battery Test Button
AC Input Indicator
Fault Indicator