Vertiv Tech EXS 0080kTK16FN01000, Руководство пользователя

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Vertiv | Liebert EXS 80kVA UPS | User Manual 9
Overview
Battery Mode
Upon mains failure or voltage is out of range, the rectifier and internal charger will stop running, and the battery
will supply power to the load through the inverter. When the mains is recovered, the system returns to the normal
mode without any manual intervention, and the power to the load is not interrupted.
In Battery mode, the run indicator (green) is ON, alarm indicator (yellow) is ON, and the buzzer beeps every
second. The ‘Current’ page in LCD will display ‘On Battery’.
• The battery has been fully charged before delivery. However, some loss of capacity is inevitable during
transportation and storage. Therefore, it is important to charge the battery for eight hours before the
UPS is first put into operation to ensure it can provide adequate backup time.
• The battery cold start function may also be used to start the UPS from the Battery mode (provided it
is fully charged) in the event of a mains failure. This means that the battery power can be used inde-
pendently to improve the system availability to a certain extent.
Figure 1-4 Schematic Diagram of Battery Mode
Bypass Mode
If the overload overtime, inverter or rectifier failure occurs during the UPS operation in Normal mode, the UPS will
be transfered to Bypass mode, i.e., the load is powered by the bypass source, which comes directly from the mains
input. If the rectifier is normal, the battery will be charged by internal charger.
In Bypass mode, the run indicator (green) is ON, alarm indicator (yellow) is ON, and the buzzer beeps every
second. The ‘Current’ page in LCD will display ‘On Bypass’.
Figure 1-5 Schematic Diagram of Bypass Mode
Output switch
Inverter Rectifier
UPS output
Battery
Inverter switch
Bypass input switch
Bypass input UPS
output Output switch
Bypass automatic switch