Emerson Liebert GXT-MT User Manual page 13

Liebert GXTMT Series
1-3 kVA UPS
4) Turn On the UPS:
4.1) With utility power connected:
Press "I" button continuously for more than 1 second to turn on the UPS. Then the UPS will get into
self-test status first. After having finishing the self-test, the UPS will get into the inverter mode, at
this time, the Utility Power LED, Inverter LED, and Load and Battery Capacity LEDs will light up.
4.2) Without utility power connected:
Even though utility power is connected to the UPS, the UPS still can be turned on by just simply
pressing "I" button continuously for more than 1 second. Then the UPS will get into self-test
status first. After having finishing the self-test, the UPS will get into the inverter mode, at this time,
Battery LED, Inverter LED, and Load and Battery Capacity LEDs will light up.
Note: The default setting for bypass mode is no output after UPS is connecting utility power
and breaker is turned on. This can be configured by monitoring software.
5) Test Function:
Test the function of the UPS system by either pressing the On-Switch "I" or disconnecting the input
of the UPS system from the power supply.
6) Turn Off the UPS:
6.1) In Inverter Mode:
Press " " button continuously for more than 1 second to turn off the UPS. Then the UPS will get into
self-test status first. After having finished the self-test, the UPS will get into bypass mode and the
Utility Power LED and Bypass LED will light up. At this time, the UPS might has output. Disconnect
the utility power to turn off the output.
6.2) In Battery Mode:
Press " " button continuously for more than 1 second to turn off the UPS. Then the UPS will get into
self-test status first. After having finished the self-test, the UPS will be turned off completely.
7) Audible Alarm Mute Function:
If the alarm is too annoying in battery mode, you may press "I" button continuously for more than 1
second to clear it. Moreover, the alarm will be enabled when the battery is low to remind you to
shutdown the load soon.
8) Operation Procedure of External Battery for Long Backup time Model
•
Use the battery pack with voltage: 36Vdc for GXT1000L-MT (3 pcs of 12V batteries), 96Vdc for
GXT2000L-MT / GXT3000L-MT (8 pcs of 12V batteries). Connection of batteries more than or
less than required will cause abnormality.
•
One end of the external battery cord is a plug for connecting the UPS and the other end has 3
(or 2) open wires for connecting the battery pack.
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