Sanyo E11A202U User Manual

Page of 47
 
− 8 − 
 
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 (for E11A202U001)
 
 
 
C ontrol
 
Circuit
 
Fuse 
B ypass  Breaker 
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  
M C CB
 
Fi
lte
r
 
Fuse 
Ch
ar
ge
r
 
AC
 
O utput
OU TPU T1 
B reaker 
F
ilt
er
 
 
 
Note: 
As for 
E11A202U001J, 
shape and the 
number of 
receptacles are 
different.