Sanyo SANUPS E11A102A - Manual (Page 11)

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4. Overview
The SANUPS E11A is a stationary-type uninterruptible power supply designed to provide
high-quality, stable AC power to critical equipment that requires continuous,
uninterrupted power.
The UPS is comprised of rectifier, charger, inverter, battery, and utility power transfer
(bypass) circuits. In the event of failure of the AC utility power source, AC output to the
load is sustained by the inverter converting DC power from the batteries. When the utility
power recovers, inverter operation continues while the batteries are recharged. The UPS
is therefore able to supply completely uninterrupted AC power to connected loads without
even momentary power loss.
UPS Block Diagram
C ontrol Circuit
Fuse
B ypass Fuse Bypass C ircuit AC Input
Inverter
Batteries
Rectifier
External
Batteries
D C / DC
Converter
LA N I / F (option)
PC I/F
CARD I/F
M AIN
SW
Fi
lte
r
F
ilt
er
Fuse
Ch
ar
ge
r
AC O utput
＜