Keyence SL-U2 User Manual download pdf

The SL-U2 is a dedicated power supply unit

designed for use with the Safety Light Curtain SL-C

Series. The SL-U2 can be mounted on a DIN rail.

This Instruction Manual includes explanations of how

to handle the SL-U2 power supply unit as well as

important cautionary information. Please read it

thoroughly before you use the SL-U2 power supply

unit in order to take full advantage of the unit’s

performance and store it so that it is easily

accessible.

Finally, please see that this manual reaches the

person or people who will be operating the power

supply.

See the SL-C Series Instruction Manual for detailed

information about the SL-C Series.

Installation

Safety Light Curtain

Power Supply Unit

SL-U2

External dimensions

Units: mm

The SL-U2’s external dimensions are as indicated

below.

This manual uses the following headings to make

important sections easy to notice and understand.

Always read these sections.

For safe usage

This manual’s format

When using this device under the following

conditions or operating environments, please

consult with your KEYENCE sales representative in

addition to implementing safety measures such as

product operation that allows leeway with respect to

features and use of failsafe provisions.

• Use of the product under conditions not described

in SL-C Series instruction manual.

• Use of the product in applications involving

nuclear power control, railroad facilities, aviation

facilities, vehicles, fuel devices, medical

equipment, and entertainment machinery.

• Use of the product in applications that may have a

significant impact on human life or property, or

that place a high priority on safety.

* Contact one of the Sales Offices listed on the back

of this manual concerning Instruction Manuals.

General precautions

• Verify that this device is operating normally in

terms of functionality and performance before the

start of work and when operating the device.

• Implement safety measures as necessary to

protect against possible damage that may result in

the event that this product fails.

• Proceed with care when modifying the SL-U2, or

when using it in a manner that falls outside of the

ranges indicated in its specifications, since

KEYENCE is unable to guarantee device

functionality or performance in such situations.

• Use this product in combination with other devices

only after careful consideration, since the SL-U2

may fail to satisfy its functionality and performance

capabilities as a result of the conditions and

environment in which it is used.

96M0932

• Turn the power supply off before making any

wire connections.

• Install the unit in a location that is not exposed to

direct sunlight and that is characterized by an

ambient temperature of -10 to +55˚C and by an

ambient humidity of 35 to 85% RH. Avoid

installation in locations prone to rapid

temperature changes.

• Always connect the protective conductor

terminal to the protective earthing line in your

building or other facility.

• Use the power supply unit only inside a control

board.

• Use the following crimp terminals, which are

compatible with M4 terminal screws.

Max. 6.0 mm

How to connect wires

Read the following precautions before connecting any

wires to the unit. Follow these tips when wiring the unit.

(1) Twisting cables will decrease the effects of

induction.

(2) Introducing a 1:1 isolation transformer or noise filter

into the line will decrease power line noise.

(3) Make wire lengths as short as possible. Separate

wires from power lines and signal lines that contain

noise.

Isolation transformer,

noise filter, etc.

D type ground

AC100–240V



10%

(2)(3)

(1)

SL-U2 part names are as indicated below.

Terminal block cover

DC 24 V output terminal

Output indicator

PE terminal

Power supply input

terminal

AC 100 V - 240 V

Lock button

SL-U2

CAUTION

100-240V AC

ONLY

SL-U2

CAUTION

100-240V AC

ONLY

The SL-U2 is installed to the left of the SL-R11 or SL-R12EX.

The connector is covered with a seal to protect it, so remove the seal before making the connection.

The connection methods are as follows.

[1] When mounting on a DIN rail

1. Refer to the figure above, and peel off the power

supply connector seal.

2. Mount both the SL-R11 (SL-R12EX) and SL-U2 to

the DIN rail.

3. Slide one of the units to connect them both together.

4. Slide the SL-U2 connection hooks to fasten the

units together.

[2] When mounting on the wall with screws

1. Refer to the figure above, and peel off the power

supply connector seal.

2. Refer to the figure above, and connect the two units.

3. Slide the SL-U2 connection hooks to fasten the units

together.

4. Use M4 screws tightened to a torque of 0.7 N•m to

mount both of the units to the wall.

*LED indicator patterns are as follows:

LED No. 1 Green ON during voltage output

LED No. 2 Green Output current at least 30%

LED No. 3 Green Output current at least 50%

LED No. 4 Green Output current at least 60%

LED No. 5 Green Output current at least 70%

LED No. 6 Red Overcurrent detected

When the yellow LED No. 5 is on, the current being used is approaching

the power supply’s capacity. Consider the use of an additional power

supply.

LED No.

1 2 3 4 5 6

100

2-ø4.2

(96.6)

25.8

35.9

111

3.5

EN61000-6-2, EN55011 Class A, FCC Part15B Class A

EN60950, EN50178, UL60950, UL508

135VA

35 to 85% RH (no condensation)

10 ms or less

About 240 g

Model

System

Input power supply voltage

Overvoltage category

Output voltage

Ripple/noise

Output capacity

Environment

SL-U2

Switching type

AC100 to 240V



10% (50/60Hz)

DC24V



10%, Class2

240 mVp-p or less

1.8 A

AC 1,500 V, 1 min. (between all external terminals and case)

10 to 55 Hz, 0.7 mm compound amplitude, 20 sweeps each in X, Y, and Z directions

100 m/s

(about 10 G), 16 ms pulse, 1,000 iterations each in X, Y, and Z directions

-10 to +55˚C (no freezing)

At least 50 M

Ω

(DC 500 V mega, between all external terminals and case)

Power consumption

Instantaneous stop time

Weight (excluding dedicated brackets)

Pollution Degree

Withstand voltage

Vibration resistance

Shock resistance

Insulation resistance

Ambient temperature

Ambient humidity

Approved

Standard

Safety

EMC

*Tightening torque: 5.1 lb-in

Wire Rating: AWG #22 - 14, stranded wire only,

Copper wire only, 60˚C or higher

Failure to follow the instructions noted under this

heading may result in damage to the product.

CAUTION

Specifications

Part names

Wiring

CAUTION

* Install while being careful of

the connectors

Instruction Manual

WARRANTIES AND DISCLAIMERS

(1) KEYENCE warrants the Products to be free of defects in

materials and workmanship for a period of one (1) year from the

date of shipment. If any models or samples were shown to

Buyer, such models or samples were used merely to illustrate the

general type and quality of the Products and not to represent that

the Products would necessarily conform to said models or

samples. Any Products found to be defective must be shipped to

KEYENCE with all shipping costs paid by Buyer or offered to

KEYENCE for inspection and examination. Upon examination by

KEYENCE, KEYENCE, at its sole option, will refund the purchase

price of, or repair or replace at no charge any Products found to

be defective. This warranty does not apply to any defects

resulting from any action of Buyer, including but not limited to

improper installation, improper interfacing, improper repair,

unauthorized modification, misapplication and mishandling, such

as exposure to excessive current, heat, coldness, moisture,

vibration or outd

oors air. Components which wear are not

warranted.

(2) KEYENCE is pleased to offer suggestions on the use of its

various Products. They are only suggestions, and it is Buyer’s

responsibility to ascertain the fitness of the Products for Buyer’s

intended use. KEYENCE will not be responsible for any damages

that may result from the use of the Products.

(3) The Products and any samples (“Products/Samples”)

supplied to Buyer are not to be used internally in humans, for

human transportation, as safety devices or fail-safe systems,

unless their written specifications state otherwise. Should any

Products/Samples be used in such a manner or misused in any

way, KEYENCE assumes no responsibility, and additionally Buyer

will indemnify KEYENCE and hold KEYENCE harmless from any

liability or damage whatsoever arising out of any misuse of the

Products/Samples.

(4) OTHER THAN AS STATED HEREIN, THE

PRODUCTS/SAMPLES ARE PROVIDED WITH NO OTHER

WARRANTIES WHATSOEVER. ALL EXPRESS, IMPLIED, AND

STATUTORY WARRANTIES, INCLUDING, WITHOUT

MITATION, THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE, AND NON-

INFRINGEMENT OF PROPRIETARY RIGHTS, ARE EXPRESSLY

DISCLAIMED. IN NO EVENT SHALL KEYENCE AND ITS

AFFILIATED ENTITIES BE LIABLE TO ANY PERSON OR

ENTITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE,

SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING,

WITHOUT LIMITATION, ANY DAMAGES RESULTING FROM

LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF

INFORMATION, LOSS OR INACCURACY OF DATA, LOSS OF

PROFITS, LOSS OF SAVINGS, THE COST OF PROCUREMENT

OF SUBSTITUTED GOODS, SERVICES OR TECHNOLOGIES, OR

FOR ANY MATTER ARISING OUT OF OR IN CONNECTION

WITH THE USE OR INABILITY TO USE THE PRODUCTS, EVEN

IF KEYENCE OR ONE OF ITS AFFILIATED ENTITIES WAS

ADVISED OF A POSSIBLE THI

RD PARTY’S CLAIM FOR

DAMEGES OR ANY OTHER CLAIM AGAINST BUYER. In some

jurisdictions, some of the foregoing warranty disclaimers or

damage limitations may not apply.

0932E 1094-3 96M0392

Printed in Japan

1 2

Summary of Contents

Page 1 - Instruction Manual

The SL-U2 is a dedicated power supply unit designed for use with the Safety Light Curtain SL-C Series. The SL-U2 can be mounted on a DIN rail.T

SL-U296M0932–1SL-U2OC+-NLCAUTION100-240V ACONLYSL-U2OC+-NLCAUTION100-240V ACONLYOC111002411352-ø4.2(96.6)25.835.91113.5˚保証について1保証期間2保証範囲1094-3 96M09

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Keyence SL-U2 User Manual

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