S8VM datasheet(34/37 Pages) OMRON

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S8VM

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,

inrush current is added to the total current. 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)

Default Setting: Set at the rated voltage

Adjustable Range: Adjustable with output voltage adjuster (V.ADJ) on

the front panel of the Power Supply from

−20% to 20% of the rated

output voltage (

−10% to 20% of the rated voltage for S8VM-

@@@24A@/P@). Turning clockwise increases the output voltage and

turning counterclockwise decreases the output voltage.

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 beyond the allowable voltage range

(up to +20% of the rated voltage) depending on the operation of the

output voltage adjuster (V.ADJ). When adjusting the output voltage,

check the output voltage of the Power Supply and be sure that the

load is not damaged.

When increasing the output voltage to more than +20% of the rated

value using the output voltage adjuster (V. ADJ), the overvoltage

protection function may operate.

(S8VM-

@@@24A@/P@ Only)

Turn the output voltage adjuster (V.ADJ) slowly. When decreasing the

output voltage quickly, or when adjusting the output voltage to less

than

−10% of the rated value, the undervoltage alarm function may

operate.

Ripple

(S8VM-15224C Only)

The rated ripple noise voltage was measured using a measuring cir-

cuit that conforms to the JEITA standard RC-9131A.

Dielectric Strength

When testing the dielectric strength, some testing devices will apply

a much higher voltage than expected. Always check the applied

waveform before testing the dielectric strength.

Remote Sensing Function

100/150-W Models

If the

+S and −S terminals are opened by removing the short bar, the

overvoltage protection function will be activated and the output volt-

age will be cut off.

300/600/1,500-W Models

The stability and accuracy of the output will deteriorate if the

+S and

− S pins are open. Always connect the +S and −S pins.

Series Operation

Two Power Supplies can be connected in series.

The (

±) voltage output can be accomplished with two Power Sup-

plies.

Series Operation

Note: 1. If the load is short-circuited, a reverse voltage may be ap-

plied inside the Power Supply unit, and this may possibly

cause the deterioration or damage of the Power Supply unit.

Connect the diode as shown in the figures. Use the following

guidelines to select the diode to be connected.

2. Though Power Supplies having different specifications can

be connected in series, the current flowing through the load

must not exceed the smaller rated output current.

Parallel Operation

15/30/50/100/150-W Models

The Power Supply is not designed for parallel operation.

S8VM

Coaxial cable

1.5 m 50

Ω

Oscilloscope

Frequency band

100 MHz

R: 50

Ω

C1: 4700 pF

C2: 22 uF

C3: 0.47 uF

Load

+V +S −V −S

−V

15W/30W

Correct

50W/100W/150W/300W/600W/

1,500W

Correct

Output Voltage (

±)

Correct

Type

Schottky Barrier diode

Dielectric strength

(VRRM)

Twice the rated output voltage or

above

Forward current (IF) Twice the rated output current or

above

−V

AC (L)

AC (N)

AC (L)

AC (N)

−V

AC (L)

AC (N)

AC (L)

AC (N)

−V

AC (L)

AC (N)

AC (L)

AC (N)

−V

AC (L)

AC (N)

AC (L)

AC (N)

−V

Incorrect

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