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www.heliosps.com
SR100Hi Series
-
100 W DC UPS
2. INTRODUCTION:
The
SR100Hi
power supply is designed to provide DC power to lead acid batteries for critical back up applications.
3. SR100Hi Series
-
SYSTEM BLOCK DIAGRAM
The
No
-
Break
™
DC
-
SR100Hi
power supply is designed to provide DC power to lead acid batteries for critical back up appli-
cations.
4. OPERATION OF ELECTRONIC CIRCUIT BREAKER (ECB) FOR PROTECTION OF BATTERY CIRCUIT & BATTERY
The ECB will operate on overcurrent as above & is also activated for the low voltage disconnect function on mains fail (no input pow-
er). It will reset when input power is restored, or can be manually reset by briefly shorting the
BAT
-
and
LOAD
-
terminals together
when there is no input power.
Max. allowable
load amps
(x I rated)
8
7
2.5
2ms
300ms
Time
ECB automatically resets
I
PSU
= 1x I
rated
7x I
rated
for 300ms max.
2.5 x I
rated
until battery fully dis-
charged
Short circuit condition,
ECB trips within 2ms
8
6
2ms
300ms
Time
6x I
rated
for 300ms max.
I
PSU
= 0
Short circuit condition,
ECB trips within 2ms
1.5 x I
rated
until LV disconnect
operates
1.5
Max. allowable
load amps
(x I rated)
B
LOAD +
I
LOAD
AC MAINS
POWER
OK LED
BATTERY
SYSTEM
OK LED
MAINS FAIL /
POWER SUPPLY
FAIL ALARM
BATTERY
SYSTEM
FAIL ALARM
LED
OFF
ALARM
OFF
LOAD
-
BATTERY
-
NORMAL OPERATION
LOAD CURRENT < PSU MAX CURRENT
ELECTRONIC
BREAKER
CIRCUIT
POWER CONVERSION
BATTERY
MANAGEMENT
& ALARM
CIRCUIT
BATTERY
CURRENT
SENSE
OUTPUT VOLTAGE, CURRENT
LIMIT & BATTERY CHARGE
CURRENT CONTROL
I
CHARGE
BATTERY TEMP.
SENSOR
REVERSE
POLARITY
FUSE
LED
ON
ALARM
OFF
Mains On
No Mains
Содержание SR100Hi Series
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