S8FSG30024CD-R datasheet(32/34 Pages) OMRON

32 / 34 page

S8FS-G

Backup Operation

Backup operation is possible if you use two Power Supplies of the

same model. Even if one Power Supplies fails, operation can be

continued with the other Power Supply. Make sure that the maximum

load does not exceed the capacity of one Power Supply.

Connect the S8VK-R or external diodes as shown in the following

figure for backup operation. Refer to the S8VK-R datasheet (Cat. No.:

T059) for information on using the S8VK-R.

Use the following information as a guide to the diode type, dialectic

strength, and current.

In Case There Is No Output Voltage

There is a possibility that overload protection, overvoltage protection,

or overheating protection are functioning. The internal protection may

operate if a large amount of surge voltage, such as a lightning inrush,

is applied to the input. In addition, other possible causes for some

models include stoppage of the built-in fan and the remote control

function (OFF). Check the following five points. If there is still no

output voltage, contact your OMRON representative.

• Checking Overload Protection:

Remove the load wires and check whether the load is in an

overload state or is short-circuited.

• Checking Overvoltage or Internal Protection:

Turn the power supply OFF, leave it OFF for at least three minutes,

and then turn it ON again to see if this clears the condition.

• Checking Overheating Protection (300 W/600 W):

Turn OFF the input power supply long enough for the Power

Supply to cool sufficiently and then turn it ON again.

• Checking for Built-in Fan Stoppage (300 W/600 W):

Check whether or not the built-in fan has stopped.

• Confirming Remote Control Operation (Power Supplies with

Remote Control):

Check whether or not the +RC and -RC terminals are open.

Connect the terminals as specified.

Charging a Battery

If you connect a battery as the load, install overcurrent control and

overvoltage protection circuits.

Built-in Fan Replacement

<Only S8FS-G300

@@@/600@@@>

The built-in fan cannot be replaced.

Audible Noise at Power ON

<Only S8FS-G300

@@@/600@@@>

A harmonic current suppression circuit is built into the Power Supply.

This circuit can create noise when the input is turned ON, but it will

last only until the internal circuits stabilize and does not indicate any

problem in the Power Supply.

Type

Schottky Barrier diode

Dielectric strength (VRRM) Twice the output voltage or above

Forward current (IF)

Twice the rated output current or above

-V

INPUT

S8FS-G

S8VK-R

S8FS-G

-V

INPUT

IN 1

IN 2

-V

INPUT

S8FS-G

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