Liebert GXT3-5000/6000RT208
SL-23188_REV1_08-10
9
Guide Specifications
2.2.3 Display and Controls
2.2.3.1 General
The UPS shall be provided with a microprocessor-based control and a status display section designed for
convenient and reliable user operation. The monitoring functions such as status and alarm indicators shall be
displayed on a front-panel LED display.
2.2.3.2 System Indicators
The UPS shall include five individual LED status indicators and three rows of LEDs to indicate UPS load and
battery capacity. An audible alarm shall be used in conjunction with the visual indicators to indicate to the
operator a change in UPS operating status.
All audible alarms can be silenced, with the exception of low battery, bypass reminder and missing batteries at
startup alarms. Once silenced, the audible alarm shall not sound until a new alarm condition is present. Standard
LED indicators are described below:
Load Level indicators:
10 total: 4 green and 1 amber, for each of the L1 and L2 outputs. The Load
Level indicators shall display the approximate load level at all times.
Battery Capacity indicators:
5 green LEDs. The Battery Capacity LEDs shall display the approximate
level of battery reserves.
Fault indicator:
1 red LED. The Fault indicator LED shall illuminate if the UPS detects an internal
problem. One or more of the Battery Capacity indicators may be illuminated to aid in diagnostics.
AC Input indicator:
1 green LED. The AC Input indicator LED shall be illuminated when utility power
is available and falls within the input specification.
UPS ON indicator:
1 green LED. The On Inverter indicator LED shall be illuminated when the UPS
inverter is operating and supplying power to connected loads.
On Bypass indicator:
1 amber LED. The On Bypass indicator LED shall be illuminated when the
bypass source is supplying power to connected loads.
On Battery indicator:
1 amber LED. The On Battery indicator LED shall be illuminated when the AC
Input is out of the acceptable operating range.
2.2.3.3 On-Standby-Off Controls
UPS startup and shutdown operations shall be accomplished by the ON and STANDBY push buttons on the front
panel of the UPS. The ON push button shall be a means to turn the UPS on and shall also serve as a means to
manually test the battery. The STANDBY push button shall allow manual transfers of the load from the inverter
to bypass power. Pressing the STANDBY push button in Bypass or Battery mode shall completely shut down the
UPS and its connected load.
2.3
ON-LINE BATTERY TEST
The UPS shall feature an automatic battery test with the factory default test interval set at every 2 weeks. The
battery test shall ensure the capability of the battery to supply power to the inverter while loaded. If the battery
fails the test, the UPS shall display a warning alarm to indicate the internal batteries need replaced and resume
operation without disturbing the load. The battery test feature shall be user accessible by the push button on the
front of the unit.
