1100A SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-12
MITSUBISHI ELECTRIC 1100 SERIES UPS
C) Battery operation:
Load power supplied by UPS battery.
Figure 1.3
Single Line Diagram - Battery Operation
Referring to Figure 1.3: In the event of AC input source failure or interruption, the UPS
converter will de-energize and the UPS battery will immediately discharge and supply DC
power to the inverter to maintain continuous AC power to the load. This operation will
continue until:
a) The battery capacity expires and the inverter turns off, or
b) Input power is restored after which the converter will power the inverter and critical load
and simultaneously recharge the batteries.
A fully charged battery will provide power for the specified time at the rated load, or longer,
at a reduced load.
When power is restored after a low battery shutdown, the UPS converter automatically
restarts operation, the charger recharges the batteries and the Inverter is automatically
restarted without operator intervention. Load is automatically assumed by the inverter
without operator intervention.
UPS Module
AC
input
CB3
CONVERTER /
CHARGER
Output
52C
Static Transfer
Switch
52S
72B
MCCB
User
supplied
CB
52RC
INVERTER
Power Flow
Not in Use
BATTERY
Built-in or external Battery
