S8JX
11
Overload Protection
The Power Supply is provided with an overload protection function
that protects the power supply from possible damage by overcurrent.
When the output current rises above 105% min. of the rated current,
the protection function is triggered, decreasing the output voltage.
When the output current falls within the rated range, the overload
protection function is automatically cleared.
(Reference value)
If an excessive current flows for 5 s or more, the output will be turned
OFF and simultaneously the protection-ON alarm indicator will be lit.
To reset the S8JX, turn OFF the power, leave the S8JX for at least
three minutes, and then turn it ON again.
Note: 1.
When a load is connected that has a built-in DC-DC
converter, the overload protection may operate at startup
and the power supply may not start.
2.
Internal parts may occasionally deteriorate or be damaged
if a short-circuited or overcurrent state continues during
operation.
3.
Internal parts may possibly deteriorate or be damaged if the
Power Supply is used for applications with frequent inrush
current or overloading at the load end. Do not use the Power
Supply for such applications.
Overvoltage Protection
Consider the possibility of an overvoltage and design the system so
that the load will not be subjected to an excessive voltage even if the
feedback circuit in the power supply fails. When an excessive voltage
that is approximately 130% of the rated voltage or more is output, the
output voltage is shut OFF, preventing damage to the load due to
overvoltage. Reset the input power by turning it OFF for at least seven
minutes and then turning it back ON again.
Consider the possibility of an overvoltage and design the system so
that the load will not be subjected to an excessive voltage even if the
feedback circuit in the Power Supply fails. When an excessive voltage
that is approximately 130% of the rated voltage or more is output, the
output voltage is shut OFF, preventing damage to the load due to
overvoltage. Reset the input power by turning it OFF for at least seven
minute and then turning it back ON again.
(Reference value)
Note:
Do not turn ON the power again until the cause of the
overvoltage has been removed.
Overheat Protection
If the internal temperature rises excessively as a result of fan failure
or any other reason, the overheat protection circuit will be triggered to
protect the internal parts and simultaneously the protection-ON alarm
indicator will be lit. Reset the input power by turning it OFF for at least
three minutes and then turning it back ON again.
Inrush Current, Startup Time, Output Hold Time
Note:
A maximum startup time of 500 ms is required. Construct a
system configuration that considers the startup time of other
devices.
15-/35-/50-/100-/150-W Models
300-W Model
600-W Model
50
Intermittent operation
0
Load rate (
%
)
100
O
u
tp
u
t
v
oltage (
V
)
50
Intermittent operation
0
Load rate (
%
)
100
O
u
tp
u
t
v
oltage (
V
)
50
O
u
tp
u
t interr
u
pted
0
Load rate (
%
)
100
O
u
tp
u
t
v
oltage (
V
)
15-/35-/50-/100-/150-W Models
300-/600-W Models
600-W Model
O
u
tp
u
t
v
oltage (
V
)
O
v
er
v
oltage protection
Operating
V
aria
b
le range
Rated o
u
tp
u
t
V
oltage
0
V
Start
u
p time
Hold time (20 ms min.)
AC inp
u
t
v
oltage
AC inp
u
t
c
u
rrent
O
u
tp
u
t
v
oltage
Inr
u
sh c
u
rrent on inp
u
t application
90
%
96.5
%
Inp
u
t O
N
Inp
u
t OFF
Содержание S8JX -
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