
Switch mode Power Supply
S82K
L-23
P
S
Wiring
Carefully wire the input/output terminals while paying attention to
their polarities so as to prevent incorrect wiring.
Battery Charging/Backup
With S82K-
@
09024/-
@
10024/-24024T models, a reduction in lifetime
due to over discharge of the battery can be prevented using the DC
LOW output. (Discharge can be interrupted at 0.75 to 0.9
×
24 V.)
Note: 1.
For details of charging voltages and charging currents, refer
to the specifications for the battery.
2.
In order to prevent overvoltage to the battery, install an ov-
ervoltage protection circuit (90/100-W models).
3.
To protect the battery in the event of incorrect operation,
such as load short-circuiting, be sure to install a fuse or cir-
cuit breaker.
4.
To limit the level of charging current to the battery, install an
overcurrent limit circuit.
With other models, when connecting a battery to the load, install an
overcurrent limit circuit and overvoltage protection circuit.
Series Operation
S82K 90-W/100-W/240-W model can be operated in series.
It must be noted that the + output of the 7.5-W dual output model
cannot be connected in series to its
–
output.
Parallel Operation
S82K 100-W/240-W models can be operated in parallel.
Perform parallel operation with power supplies satisfying the same
specifications.
Note:
When operating the S82K-P10024 or S82K-
@
24024
@
in paral-
lel operation, set the switch to
“
PARALLEL.
”
Refer to the derat-
ing curve for the rated current under this operation.
Parallel Operation Precautions
The length and thickness of each wire connected to the load must
be the same so that there is no difference in voltage drop value
between the load and the output terminals of each Power Supply.
Adjust the output voltage of each Power Supply so that there will be
no difference in output voltage between each Power Supply.
If the S82K-P10024 or S82K-
@
24024
@
models are used in single
operation under the parallel operation setting, the overcurrent pro-
tection will be actuated at an output of 90% to 95% (in current), and
will not allow a 100% output.
If the S82K-P10024 or S82K-
@
24024
@
models are used in parallel
operation under the single operation setting, one of them will oper-
ate at 110% output, causing severe heat derating and shortening
the service life.
14
15
16
+V
V
9
10
11
12
13
Example: Lead Storage Battery Backup Circuit
Fuse/Circuit breaker
DC Low
O
p
O
l
L
+V
V
+V
V
+V
V
+V
V
90-, 100-, and 240-W Models
3-, 7.5-, 15-, 30-, 50-W Models
INPUT
INPUT
INPUT
INPUT
+V
V
+V
V
INPUT
INPUT
Load
100- and 240-W Models
+V
V
+V
V
INPUT
INPUT
Load
3-, 7.5-, 15-, 30-, 50- and 90-W Models