Omron S8JX Series Manual page 9

Installation Environment
Do not use the Power Supply in locations subject to shocks or
vibrations. In particular, install the Power Supply as far away as
possible from contactors or other devices that are a vibration source.
Install the Power Supply well away from any sources of strong, high-
frequency noise and surge.
Operating Life
The life of a Power Supply is determined by the life of the electrolytic
capacitors used inside. Here, Arrhenius Law applies, i.e., the life will
be cut in half for each rise of 10 ° C or the life will be doubled for each
drop of 10 ° C. The life of the Power Supply can thus be increased by
reducing its internal temperature.
Ambient Operating and Storage
Environments
Store the Power Supply at a temperature of − 25 to 65°C and a
humidity of 25% to 90%.
The Internal parts may occasionally deteriorate or be damaged.
Do not use the Power Supply outside the derating range (i.e., under
conditions indicated by the shaded area (
diagram on page 4.)
Use the Power Supply at a humidity of 25% to 85%.
Do not use the Power Supply in locations subject to direct sunlight.
Do not use locations where liquids, foreign matter, or corrosive gases
may enter the interior of the Product.
Overcurrent Protection
Internal parts may possibly deteriorate or be damaged if a short-
circuited or overcurrent state continues during operation.
cause of the short-circuited or overcurrent state as quickly as possible.
Internal parts may possibly deteriorate or be damaged if the Power
Supply is used for applications with frequent inrush current or over-
loading at the load end. Do not use the Power Supply for such appli-
cations.
Dielectric Strength Test
If a high voltage is applied between an input and the case (PE), it will
pass though the LC of the built-in noise filter and energy will be
stored. If the high voltages used for dielectric strength testing are
turned ON and OFF with a switch, timer, or similar device, impulse
voltage will be generated when the voltage is turned OFF and
internal parts may possibly be damaged. To prevent the generation
of impulse voltages, reduce the applied voltage slowly with a variable
resistor on the test device or turn the voltage ON and OFF at the
zero-cross point.
When performing the test, be sure to short-circuit all the output
terminals to protect them from damage.
Insulation Test
When performing the test, be sure to short-circuit all the output
terminals to protect them from damage.
Inrush Current
When two or more Power Supplies are connected to the same input,
the total current is the sum of the currents for each Supply. Select
fuses and circuit breakers giving sufficient consideration to the fusing
or operating characteristics so that fuses will not burn and breakers
will not break due to inrush current.
Output Voltage Adjuster (V.ADJ)
The output voltage adjuster (V.ADJ) is set to the rated voltage as the
factory setting.
Adjustment range: The rated voltage can be adjusted using the
The output voltage adjuster (V.ADJ) may possibly be damaged if it is
turned with unnecessary force. Do not turn the adjuster with
excessive force.
After completing output voltage adjustment, be sure that the output
capacity or output current does not exceed the rated output capacity
or rated output current.
The output voltage may increase above the adjustable voltage range
(rated voltage +15%) depending on the operation of the output
voltage adjuster (V.ADJ). When adjusting the output voltage, make
sure that the Power Supply output voltage will not damage the load.
DIN Rail Mounting
To mount the Power Supply on a DIN rail, hook portion (A) of the
Power Supply onto the rail and press the Power Supply in direction
) in the derating curve
(B).
Remove the
To dismount the Power Supply, pull down portion (C) with a flat-blade
screwdriver and pull out the Power Supply.
output voltage adjuster (V.ADJ) on the front panel
to between − 10% to15%. Turning to the right will
raise the output voltage and turning to the left will
lower the output voltage.
Switch Mode Power Supply
(A)
(B)
30 mm min.
(C)
S8JX
9