Omron S8TS DATASHEET

f or flexible power and system integrity

S8TS SERIES

Advanced Industrial Automation

Building-block power supply
with system back-up options

Omron’s S8TS is a revolution in design. The unique ‘building-block’

concept of the S8TS offers the flexibility, reliability, standardisation and

redundancy that control panel builders have been looking for in DC

power supplies. And to ensure that your system maintains a continuous

supply of power, Omron’s S8TS series, along with the DC back-up and

buffer blocks, guarantee the integrity of your system at all times!

Omron’s revolution

in power supply design!

Omron’s S8TS is the most flexible power supply system on the market

offering a standardised, cost-effective power supply solution. Its three

output types (5, 12 and 24VDC) allow you to configure more than

100 power supply configurations. Each ‘plug-together’ power unit allows

you to create collectives of 2.5, 5, 7.5 or 10A in 12 or 24VDC output

voltages. And a 5VDC, 5A block is also available. The standard sized,

DIN-rail mounting units make initial panel layout a simple operation.

As your load requirements change, increasing or decreasing your

power output capacity takes just minutes to achieve. These units,

at just 42 mm wide, can be added as required

up to a maximum of 10 Amps per group.

DC back-up unit

The S8T DC-BU-01 is an innovative DC battery back-up unit that
can be easily added to the S8TSpower supply to ensure system
integrity at all times. There’s no wiring required with this unit;
it simply plugs into the right or left side of the power supply
block. Once in place, this back-up block ensures continuous
power to your system for up to 4 minutes (at 8A), so that no
valuable production time is lost in the event of a power failure.
The S8T DC-BU-01 takes its input from 2 x 12V batteries, which
are connected in series and mounted on a battery holder.
The external battery is wired to the topside of the DCback-up
block, while the DC output is on the lower side.

Buffer unit

The S8T-DCBU-02 buffer blockis the perfect solution for
preventing stoppages in equipment operation, data loss and
other problems resulting from a momentary power loss.
This buffer block provides a back-up power source for at least
500ms (at 2.5A) to 1s (at 1A). Up to four of these blocks can
be connected in parallel to increase the back-up time and
current handling capacity. It connects to the S8TS in a simple
click-on action via the S8T-BUS03 bus connector. It can also
be used with other Omron’s power supplies. This maintenance­free buffer block is one of the most cost-efficient ways
of protecting your system!

Connecting it all together

Omron has developed unique busconnectors as a way
of connecting the S8TS series. The connectors allow you
to connect the input voltage internally to all linked power
supply units. Three types of bus connectors are available.
With the parallel bus connector (S8T-BUS01) you can connect
12 or 24VDC units together to provide a power supply capacity
of 60 to 240W for standard operation. The isolated bus
connector (S8T-BUS02) lets you create a single, collective power
supply block with mixed output voltages (24, 12 or 5VDC).
And the input circuit continues through the connector, keeping
the wiring simple and reliable. The bus connector S8T-BUS03
is used for the DC Back-Up system to connect S8TS 24Voutput
blocks to the DC back-up block(S8T-DCBU-01), and to connect
the buffer unit (S8T-DCBU-02).

Reliability built into your system!

Thanks to the unique building blockconcept of the S8TS you
can design in redundancy protection (N+1) into your power
supply by adding an extra unit. If one of the units fails, this
additional unit takes up the shortfall of the current requirement
until the defective power block isreplaced. A defective unit
is easyto locate via its LED status indicator.
Building in this kind of redundancy improves the reliability
of your system and is vital in continuous production
environments where a power failure - no matter how short –
can disrupt a whole process.

Environmentally friendly

Omron’s policy of environmental awareness is reflected
in these products. The soldering in all of the S8TS models
is lead-free.

• Omron’s quality and reliability built-in

-Designed and tested to Omron’s renowned high
standards, each product in this range meets all relevant
international standards and provides consistently
superb quality throughout its working life.

•Total hardware supplier

- Omron’s huge product portfolio ensuresthat
there’s always a product available to handle your
specific application!

•Complete solutions provider

- Omron’s drive for continuous development and use of
innovative technologies, combined with its strict quality­first policy and just-in-time delivery of components and
solutions, makes us the ideal business partner foreven
the most demanding user.

S8T-BUS 01 S8T-BUS 02 S8T-BUS 03

Battery and holder S82Y-TS01 (for S8T-DCBU-01) LC-R123R4PG (for S8T-DCBU-01)

World-wide compatibility

Each S8TS unit accepts an input voltage of between 85 and
264VAC (47 to 63Hz), making it suitable for connecting to the
mains supply of many countries. The S8TS is CE marked and
approved to the latest European legislation regarding noise
and emissions, so it can be used in all new systems, as well
as a replacement for old or failed units. The S8TS is approved

to the applicable UL and CSA standards, so it can be used
in both domestic and export markets. In addition, the S8TS
range complies with the latest European regulations
amendment regarding Power Factor Correction
(EN61000-3-2 and EN61000-3-2 A14) and SEMI F47-0200
for the S8T-DCBU-02.

Battery holder with on/off switch and fuse

185.7 x 222.25 x 82 mm

Valve regulated Lead-Acid battery (Panasonic)

Two batteries are required for one back-up system

12V / 3.4Ah

Model S8T-DCBU-01 S8T-DCBU-02

Input voltage
Output voltage (current)
Parallel operation
Bus connectors
Terminal
Other functions

Dimensions (W x H x D)

24 to 28VDC

22VDC (at 24V input); 25.8VDC (at 28Vinput)

Yes (4 max.)

S8T-BUS03 (not included)

READY indicator, READYoutput,

Back-up indicator, Back-up output

24 to 28VDC (from S8TS)

24VDC (normal) / 21 to 27.4VDC (back-up)

-

S8T-BUS03 (included)

Over-charge protection, Over-discharge protection,

Over-current protection, Remote back-up on/off input

Screw terminal type

43 x 120 x 120 mm

Model S8TS-06024-E1 S8TS-03012-E1 S8TS-02505 S8TS-06024F-E1 S8TS-03012F-E1 S8TS-02505F

S8TS series specifications

Input voltage 100–240VAC (85–264VAC)
Power 60 W 30 W 25 W 60 W 30 W 25 W
Output voltage 24VDC (2.5A) 12VDC (2.5A) 5VDC (5A) 24VDC (2.5A) 12VDC (2.5A) 5VDC (5A)
(current)
Output adjust 22-28V 10.8-13.2V 4.5-5.5V 22-28V 10.8-13.2V 4.5-5.5V
Parallel operation Yes (4 max.) Yes (4 max.) No Yes (4 max.) Yes (4 max.) No
N+1 redundant Yes Yes No Yes Yes No
system (4 + 1 = 5 max.) (4 + 1 = 5 max.) (4 + 1 = 5 max.) (4 + 1 = 5 max.)
DC back-up Yes No No Yes No No
connection
Bus connectors S8T-BUS01 + S8T-BUS02 (included) - S8T-BUS01 + S8T-BUS02 (included) ­Terminal Screw terminal type Connector terminal type
Other functions Over-current protection / Over-voltage protection, Under-voltage indicator / Under-voltage open collector output
Dimensions (W x H x D) 43 x 120 x 120 mm

In a process-controlled
environment any
disruption in power could
result in huge data losses.
An S8TS system can
provide continuous power
to vital areas and prevent
data loss in the event
of a power failure.

In the chemical and
bio-chemical industries,
indicators like Omron’s
K3MA series closely
monitor the temperature
and pressure of hazardous
chemical containers.
The S8TS ensures that
these indicators keep
working, even if there’s
a power failure.

The S8TS provides

continuous power
to safety sensors (like
Omron’s F3SN) so that

personnel are always

protected in hazardous

environments like

automotive production

lines, even if there’s

a power failure.

If power fails in a factory

automation system,
employees need to see at
a glance what the system

status is. The S8TS system

can provide continuous

power to the HMI (like

Omron’s NS terminal),

so that personnel have

continuous access to all

relevant data.

Any power outage,

no matter how short, can

cause huge problems in

precise production
processes like microchip
manufacturing. The S8TS

offers a very reliable,

cost-effective, continuous

power solution.

Using the S8TS to power
an alarm system with
sensors will ensure that
burglars on your premises
will always be detected,
even if they sabotage
the power cables.

OMRON EUROPE B.V.

Wegalaan 67-69, NL-2132 JD, Hoofddorp, The Netherlands. Tel: [phone] Fax: [phone] www.europe.omron.com

For the Middle East, Africa and other countries in Eastern Europe, Tel: [phone] www.europe.omron.com

Authorised Distributor:

Automation and Drives

• Programmable logic controllers • Networking

• Human-machine interfaces • Inverter drives • Motion control

Industrial Components

• Electromechanical relays • Timers • Counters • Sockets

• Programmable relays • Low voltage switch gear • Power supplies

• Temperature & process controllers • Solid-state relays

• Panel indicators • Level controllers • Industrial switches • Pushbutton switches

Sensing and Safety

• Photoelectric sensors • Proximity sensors • Rotary encoders

• Vision systems • RFID systems • Safety switches

• Safety relays • Safety sensors

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Although we strive for perfection, Omron Europe BV and/or its subsidiary and affiliated companies do not warrant

or make any representations regarding the correctness or completeness of the information described in this document.

We reserve the right to make any changes at any time without prior notice.

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