S8VM datasheet(35/37 Pages) OMRON

35 / 37 page

S8VM

300/600/1,500-W Models

If the CB pin (pin 5 on CN) and the CBG pin (pin 6 on CN) are con-

nected, the current balance function will operate and parallel opera-

tion will be possible at 80% or less of the total output capacity.

Up to 2 Power Supplies can be connected.

Use 2-conductor shielded cable as connection wire (* 1).

Adjust the output voltage of each Power Supply to the same value

within 1% of the rated voltage or so that the difference in the output

voltage is 100 mV or less, whichever is smaller, using the output volt-

age adjuster (V. ADJ).

Parallel operation is used to increase static capacity. The output volt-

age may drop with sudden load fluctuations.

There may be steps in the rising waveform of the output voltage dur-

ing parallel operation.

Remove the standard supplied connector and prepare a connector

harness separately.

In Case There Is No Output Voltage

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

The possible cause for no output voltage may be that the overload

protection or overvoltage protection has operated. The internal pro-

tection circuit may operate if a large amount of surge voltage such as

a lightening surge is applied to the input.

If there is no output voltage even after checking the following points

please contact your OMRON representative.

Check the overload protected status.

Check whether the load is in overload status or is short-circuited.

Remove the load wires when checking.

Attempt to clear the overvoltage or internal protection

function.

Turn OFF the input power once and leave it OFF for at least 3 min-

utes. Then turn it ON again to see if this clears the condition.

Check whether the +S terminal and

−S terminal are open, i.e., if the

short bar has been removed. (S8VM-100

@@@@/S8VM-150@@@@

only)

Check if the output voltage has been adjusted to more than +20% of

the rated voltage using the output voltage adjuster (V. ADJ).

300/600/1,500-W Models

The possible cause for no output voltage may be that the overcurrent

protection, overvoltage protection, or overheat protection has oper-

ated. Alternatively, the built-in fan may have stopped or the remote

control function may be OFF.

If there is no output voltage even after checking the following five

points, please contact your OMRON representative.

Check the overload protected status.

Check whether the load is in overload status or is short-circuited.

Remove the load wires when checking.

Attempt to clear the overvoltage protection function.

Turn OFF the input power once and leave it OFF for at least 3 min-

utes. Then turn it ON again to see if this clears the condition.

Check whether the +S terminal and

−S terminal are open.

Check if the output voltage has been adjusted to more than +20% of

the rated voltage using the output voltage adjuster (V. ADJ).

Check the overheat protected status.

Turn OFF the input power and leave it OFF until the Power Supply

cools sufficiently. Turn it ON again to see if this clears the condition.

Check if the built-in fan motor has stopped.

Check if the built-in fan motor has stopped. The fan is a consumable

part.

Check the remote control function.

Check if the +RC and -RC pins are open. Make the correct connec-

tions as specified.

Fan Replacement

300/600/1,500-W Models

Consult with OMRON regarding fan replacement. OMRON will

replace fans for a fee. A replacement Fan Unit (S82Y-VM

@@FAN) is

available. Use the curve in the graph below as a rough measure of

replacement timing.

The Power Supply will not conform to safety standards if the cus-

tomer replaces the fan.

Buzzing Noise when the Input Is

Turned ON

50/100/150/300/600/1,500-W Models

A harmonic current suppression circuit is built into the input power.

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

last only until internal operation stabilizes and does not indicate any

problem in the Power Supply.

DIN Rail Mounting

15/30/50/100/150/300/600-W Models

When mounting to a DIN Rail, lower the

S8VM onto the Rail until the Rail stopper

clicks into place, hook section A over the

edge of the Rail and push in the direction of

To remove the S8VM from the DIN

Rail, insert a screwdriver into section

C and pull the S8VM away from the

Rail.

S8VM

CBG

S8VM

CBG

AC (L)

AC (N)

AC (L)

AC (N)

−V

Correct

040

100

Exhaust temperature:

°C

Note: Expected fan service life

Exhaust temperature 45

°C: 45,000 hours

Exhaust temperature 80

°C: 11,000 hours

(A)

(B)

30 mm min.

Rail stopper

(C)

S8VM Datasheet(PDF) 35 Page - Omron Electronics LLC

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