Liebert GXTMT Series Installation and User Manual
1-3 kVA UPS
Page ７ V2.11 Emerson Network Power
System Description
3. System Description
Figure 1: Display Panel
Switch Function
ON - Switch
Turn on UPS system:
By pressing the ON-Switch “I” the UPS system is turned on.
Deactivate acoustic alarm:
By pressing this switch an acoustic alarm can be deactivated.
OFF-Switch
When mains power is normal, the UPS system switches to Standby mode by pressing
OFF-Switch “
“. It is then switched to Bypass and the inverter is off. At this moment,
the output sockets are supplied with voltage via the bypass if the mains power is
available.
Display Function
LINE LED
The green LINE LED lights up if mains voltage is applied to the UPS input.
LINE LED blinks when the phase and neutral conductor have been reversed at the
input of the UPS system.
If LINE LED and BATTERY-LED light up, the mains power supply is out of tolerance.
BATTERY LED
The orange-coloured BATTERY-LED lights up when the mains power has failed and
the inverter is being powered by the batteries.
BYPASS LED
The orange-coloured BYPASS LED lights up when the UPS system is supplying
voltage provided by the mains power via the bypass.
INVERTER LED
The green-coloured INVERTER LED lights up if the UPS system is supplying voltage
provided by the mains power via the inverter.
FAULT LED
The red FAULT LED lights up and an acoustic warning signal is issued continuously
when the UPS system is in fault condition. Press the Standby switch in order to turn off
the warning tone.
Display Function
LOAD & BATTERY
CAPACITY LEDs
These LEDs show the load of the UPS system if the mains power is available (normal
operation):
2nd LED 96%-105 % 3rd LED 76%-95 %
4th LED 56%-75 % 5th LED 36%-55 %
6th LED. 0-35 %
In the battery operation, the LEDs indicate the capacity of the batteries:
2nd LED 0-25 % 3rd LED 26%-50 %
4th LED 51%-75 % 5th LED 76%-95 %
6th LED 96%-100 %
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