S8JXG05012CD Datasheet, PDF (45/59 Pages) Omron Electronics LLC – Switch Mode Power Supply

S8JX
Overvoltage Protection
50-/100-/150-W Models
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 three
minutes and then turning it back ON again.
300-/600-W Models
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 and simultaneously the alarm indicator will be lit. Reset
the input power by turning it OFF for at least three minute and then
turning it back ON again.
(Reference value)
Rated output
Voltage
Overvoltage protection
Operating
Variable range
Overheat Protection
300-/600-W Models
If the internal temperature rises excessively as a result of fan failure
or any other reason, the overheat protection circuit will be triggered to
shut OFF the output voltage 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
Input ON
AC input
voltage
Input OFF
AC input
current
Inrush current on input application
90%
96.5%
Output
voltage
Startup time
Hold time (20 ms min.)
Note: A maximum startup time of 1,000 ms is required. Construct a
system configuration that considers the startup time of other
devices.
0V
Note: Do not turn ON the power again until the cause of the
overvoltage has been removed.
Output peak current (300-W 24V, 600-W 24V
Models)
The following conditions should be satisfied for the peak current
value.
• t1 ≤ 10 s
• Ip ≤ rated peak current
• lave ≤ rated current
Duty=
t1
t1+t2
×100 [%] ≤ 35% (180 to 240 VAC)
[A]
Ip: peak current
lave: average current
t1
t2
Note: 1. Do not hold peak load current over 10 seconds.
In addition, you should not use duty cycle under conditions
beyond above figure.
It may cause damage in its power supply.
2. Please derate peak load current depending on ambient
temperature and mounting orientation.
3. Please keep the average current of peak load cycle from
becoming more than the rated value.
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