ION F-20 Series, User Manual

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3-2
Online Operations
An online UPS provides stable power that is not affected by an unstable main power supply (ex. grid
power). Through the online UPS, grid power can provide a clean, noise-free power supply environment.
The online architecture offers three types of power supply methods depending on the power environment.
(1)
Normal Mode:
When grid power is normal, once Rectifier has been turned on at the main power supply then the
battery is charged in DC/DC mode while the required power is supplied via Inverter at the same time.
(2)
Bypass Mode:
In the event of UPS overload, INV failure or module overheating, the power supply circuit switches
from INV to the bypass output.
(3)
Battery Mode :
When the UPS detects a failure in the main power supply then power is provided from the battery
instead. The touch screen at the front of the module will also display current battery level to remind
the user.
3-3
Manual Bypass Operation
When the manual bypass switch is activated, the load is powered directly from the bypass input. This
operation is useful when maintenance needs to be carried out on UPS since service personnel can
work on the installation without having to cut off the power to the load.
Attention:
•
UPS maintenance can only be performed by authorized and qualified technicians who are
familiar with this UPS.
•
If the UPS is in battery mode, turn on the manual bypass switch may cut off power to the
load.