KEYENCE SL-U2 - 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.
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
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
Lock button
SL-U2
OC
+
-
N
L CA
UTION 100-240V A
C
ONL
Y
SL-U2
OC
+
-
N
L CA
UTION 100-240V A
C
ONL
Y
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.
OC
LED No. 1 2 3 4 5 6
11
100
24
11
35
2-ø4.2 (96.6)
25.8
35.9
111
3.5
EN61000-6-2, EN55011 Class A, FCC Part 15B 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)
2
10 to 55 Hz, 0.7 mm compound amplitude, 20 sweeps each in X, Y, and Z directions
100 m/s 2 (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 MΩ (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 outdoors 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
LIMITATION, 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 THIRD 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.
Copyright (c) 2002 KEYENCE CORPORATION. All rights reserved.
0932E 1094-3 96M0392
Printed in Japan