Datasheet

L-30 Switch Mode Power Supply S8TS
Operation
Maximum Number of Blocks That Can
Be Linked
Basic Blocks can be linked using Bus Line Connectors.
Increasing Output Capacity
N+1 Redundant Systems
To ensure stable operation when there is a failure in one of the
Blocks, use within the derating curve for N+1 redundant systems.
Multi-output Power Supply
Up to 4 Basic Blocks with different output voltage specifications can
be linked.
Selecting Bus Line Connectors
Select Bus Line Connectors according to the linking method as fol-
lows:
Using parallel operation:
S8T-BUS01 (DC line connected)
The S8T-BUS01 Bus Line Connector is equipped with a selector to
prevent erroneous connection of Blocks with different output volt-
age specifications. Slide the selector to the output voltage for paral-
lel operation.
Not using parallel operation:
S8T-BUS02 (DC line not connected)
Mounting and Removing Bus Line
Connectors
Pay attention to the following points to maintain electrical characteris-
tics.
Do not insert/remove the Connectors more than 20 times.
Do not touch the Connector terminals.
To remove the Connectors, insert a flat-bladed screwdriver alter-
nately at both ends.
Wiring Linked Blocks
When linking Blocks together, wire input lines to one Block only, oth-
erwise inputs may be shorted internally resulting in damage to the
Block.
Do not cross-wire Blocks or wire between a Block and another
device. If the rated current is exceeded, Bus Line Connectors may be
damaged.
When Basic Blocks are linked together, it is necessary to wire the GR
terminal of only one Block, not all the Blocks.
Series Operation and ± Output
Using 2 Basic Blocks enables series operation and the use of
± output. An external diode is not required for S8TS-06024@ and
S8TS-03012@ models but is required for S8TS-02505@ models. Use
the following as a rough guide for selecting the diode.
Note: Series operation is possible with different specifications, but the
current that flows to the load must not exceed the rated output
current of any Block.
Models Number of Blocks N+1 Redundant
System
S8TS-06024@ 4 Blocks Yes, 5 Blocks
S8TS-03012@ 4 Blocks Yes, 5 Blocks
S8TS-02505@ No No
24V
12V
Selector
LLNNGR GR
V+V V+V
LLNNGR GR
V+V V+V
S8T-BUS01 S8T-BUS02
AC Line
DC Line
DC line connected
(parallel connection)
DC line not connected
(isolated connection)
Type Schottky barrier diode
Withstand voltage
(V
RRM
)
At least twice the rated output voltage
Current with normal di-
rection (I
F
)
At least twice the rated output current
L
N
L
N
V
+V
Do not wire inputs to more than one
L
N
L
N
L
N
Do not use cross-wire Blocks.