Vertiv Liebert ITA2-08KRT208, User Manual

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Vertiv | Liebert
®
ITA2
™
User Manual | 10
Figure 6 Battery Mode
1.5.4 Auto Restart Mode
Auto restart mode, when enabled (default setting), allows the UPS to automatically restart and
provide conditioned, protected power to the connected equipment after the UPS shut down due
to a depleted battery due to an extended power outage. The Liebert ITA2 has a built-in auto
restart delay of 10 seconds after power is restored that allow the input source to startup other
equipment in the building first and stabilize. The UPS will begin recharging the battery during the
10 second delay.
1.5.5 Eco Mode—Single UPS
Eco Mode is an energy-saving operation mode in which UPS efficiency approaches 99% that can
be used to reduce power consumption. In Eco Mode, the load is powered by bypass if the bypass
voltage is normal; when the bypass voltage is outside the specified range, the load will be
powered by inverter.
1.5.6 Fault State
In Normal Mode, the UPS will transfer to Bypass Mode if the inverter fails or if UPS
overtemperature occurs. In Battery Mode (with no bypass utility), the UPS will shut down and
stop output power if the inverter fails or if a UPS overtemperature occurs. In UPS Fault state, the
alarm indicator (red) will be On, the buzzer will beep continuously and the fault information will be
displayed on the LCD.
NOTE
The battery has been fully charged before shipment. However, transportation and storage will
inevitably cause some capacity loss. Therefore, it is required to charge the battery for 5-8 hours
before putting the UPS into operation for the first time to ensure the adequate battery backup
time.
NOTE
In Eco Mode, if the bypass failure or abnormal bypass voltage notification appears when the
output is not overloaded, the UPS will transfer to Normal Mode. However, if the bypass failure or
abnormal bypass voltage notification appears when the output is overloaded, the UPS will shut
down the bypass.
Battery
Charger
Bypass
Input
Mains
Input
Inverter
UPS
Output
Rectifier/PFC
Static
Switch