KEYENCE SL-R12EX User Manual
96M13270
IntelligentExtensionUnit
SL-R12EX
InstructionManual
NOTICE
Do not attempt to operate or service this machine
until you have read and understand the
instructions written in this manual.
Contents
Safety Precautions
1. Safety Headings .........................................................................................................................................iii
2. General Precautions .................................................................................................................................. iii
3. Warning .......................................................................................................................................................iv
4. Circuit Design and Wiring ........................................................................................................................... v
5. Testing and Maintenance ............................................................................................................................ v
6. About Standards and Regulations ........................................................................................................... vi
7. Accessories ................................................................................................................................................vi
1 Specifications
1-1 Part Names .......................................................................................................................................... 1-2
1-2 Specifications ..................................................................................................................................... 1-3
1-3 External Dimensions Diagram .......................................................................................................... 1-5
1-4 Power Supply Precautions ................................................................................................................ 1-6
1-4-1 Power Units that Can Be Used as Power Supplies for SL-C Series and SL-R11/SL-R12EX ..... 1-6
1-4-2 Recommended Dedicated Power Supply Unit ............................................................................ 1-6
2 Functions
2-1 Foreword ............................................................................................................................................. 2-1
2-2 Floating blanking function................................................................................................................. 2-1
2-2-1 Floating blanking for 1 beam axis ............................................................................................... 2-1
2-2-2 Floating blanking for 2 beam axes .............................................................................................. 2-2
2-2-3 Floating blanking for 3 beam axes .............................................................................................. 2-2
2-3 Fixed blanking function ..................................................................................................................... 2-2
2-4 Blanking blind protection function ................................................................................................... 2-3
2-5 Muting function .................................................................................................................................. 2-3
2-5-1 Muting function ........................................................................................................................... 2-3
2-5-2 Two-input muting ......................................................................................................................... 2-8
2-5-3 Four-input muting ........................................................................................................................ 2-9
2-5-4 Two-input programmable muting function ................................................................................. 2-12
2-5-5 Four-input programmable muting function ................................................................................ 2-14
2-6 Use of function combinations ......................................................................................................... 2-17
2-7 Status monitor .................................................................................................................................. 2-18
3 Mounting and Installation
3-1 Installation Location .......................................................................................................................... 3-1
3-2 Installation Using a DIN Rail .............................................................................................................. 3-1
3-3 Wall Mounting Using Screws ............................................................................................................ 3-3
3-4 Connection to the SL-U2 and the SL-R11 Recommended Dedicated Power Supply ................... 3-3
ENGLISH
English
i
4 Wiring and setting
4-1 When not using the unit's blanking and muting features............................................................... 4-1
4-1-1 Setting procedure ....................................................................................................................... 4-1
4-2 Floating blanking function................................................................................................................. 4-2
4-2-1 Setting procedure ....................................................................................................................... 4-2
4-3 Fixed blanking function ..................................................................................................................... 4-3
4-3-1 Setting procedure ....................................................................................................................... 4-3
4-4 Blanking blind protection function ................................................................................................... 4-4
4-4-1 Blanking blind protection unit ...................................................................................................... 4-4
4-4-2 Installing the blanking blind protection (BBP) unit and the SL-C Series ..................................... 4-5
4-4-3 Obstacle restrictions .................................................................................................................. 4-7
4-4-4 Connecting the blanking blind protection (BBP) unit and the SLR-12EX.................................... 4-8
4-4-5 Setting procedure ....................................................................................................................... 4-8
4-5 Muting function ................................................................................................................................ 4-10
4-5-1 Muting devices .......................................................................................................................... 4-10
4-5-2 Muting lamps ............................................................................................................................ 4-12
4-5-3 Setting procedure for two-input muting function ....................................................................... 4-15
4-5-4 Setting procedure for four-input muting function ....................................................................... 4-16
4-5-5 Bank switching input devices .................................................................................................... 4-17
4-5-6 Setting procedure for two-input programmable muting function ............................................... 4-18
4-5-7 Setting procedure for four-input programmable muting bank function ...................................... 4-19
4-6 Combinations of functions .............................................................................................................. 4-21
4-6-1 Combination between the Floating blanking function and the Fixed blanking function ............ 4-21
4-6-2
Combination between the Floating blanking function and the Blanking blind protection function ...
4-6-3 Combination between the Floating blanking function and the Muting function ......................... 4-22
4-6-4 Combination between the Fixed blanking function and the Muting function ............................. 4-22
4-6-5 Combination between the Fixed blanking function and the Programmable muting function .... 4-22
4-6-6 Combination between the Blanking blind protection function and the Muting function ............. 4-23
4-6-7
Combination between the Blanking blind protection function and the Programmable muting function ...
4-6-8
Combination between the Floating blanking function, the Fixed blanking function, and the Muting function ...
4-6-9
Combining the Floating blanking function, the Blanking blind protection function, and the Muting function ...
4-7 Status monitor .................................................................................................................................. 4-25
4-7-1 The UNIT indicator .................................................................................................................... 4-25
4-7-2 The BEAM indicator .................................................................................................................. 4-26
4-7-3 Other indicators ........................................................................................................................ 4-27
4-8 Status Display (SL-R12D) ................................................................................................................ 4-28
4-8-1 Indicators on SL-R12D ............................................................................................................. 4-28
4-8-2 Installing the SL-R12D onto a panel ......................................................................................... 4-29
4-8-3 Connection method ................................................................................................................... 4-30
4-21
4-23
4-24
4-24
5 Checklist
5-1 List of Pre-use check Items ............................................................................................................... 5-1
5-1-1 Checking the SL-R12EX installation conditions .......................................................................... 5-1
5-1-2 Checking wiring .......................................................................................................................... 5-1
5-2 List of maintenance check items ...................................................................................................... 5-2
6 Troubleshooting
Troubleshooting .................................................................................................................................... 6-1
7 Revision History
Revision History .................................................................................................................................. 7-1
96M13270
ENGLISH
ii
Safety Precautions
This manual describes handling, operation, and precautionary information for the Intelligent Extension Unit
(SL-R12EX). Read this manual thoroughly before operating the SL-R12EX in order to understand device
features, and keep this instruction manual readily available for reference.
1. Safety Headings
This instruction manual uses the following headings to display important safety information. Strict adherence
to the instructions next to these headings is required at all times.
DANGER
WARNING
CAUTION
Important:
Note:
Tips
➮
Reference:
WARNING
Failure to follow the instructions may lead to death or serious injury.
Failure to follow the instructions may result in significant harm to machine operators, including death.
Failure to follow the instructions may result in failure to the SL-R12EX, or to the
machine to which it is installed.
Provides important precautions and restrictions for proper operation.
Provides additional information for proper operation.
Provides useful information for proper operation.
Provides reference pages.
The SL-R12EX is a special controller unit for the Safety Light Curtain SL-C Series
and the Intelligent Safety Relay Unit SL-R11.
Therefore, be sure to refer to and strictly observe the precautions and warnings
written in the SL-C Series and/or SL-R11 Instruction Manual.
2. General Precautions
ENGLISH
English
•Verify that this device is operating normally in terms of functionality and performance before the start of
work and before the start of device operation.
• KEYENCE is unable to warrant the function or performance of the SL-R12EX if it is used in a manner that
differs from the SL-R12EX specifications contained in this instruction manual or if the SL-R12EX is modified.
• When using the SL-R12EX to protect machine operators from a hazardous zone or a hazard, or using it
as safety equipment for any purpose, always follow the applicable requirements, regulations, and laws
(collectively “regulations”) existing in the country or region where the SL-R12EX is being used. For such
regulations, contact directly the regulatory agency responsible for occupational safety and health in your
country or region.
• Depending on the type of machine to which the SL-R12EX is to be attached, there may be special safety
regulations related to the use, installation, maintenance, and operation of the device, and such safety
regulations must be followed. The responsible personnel must install the SL-R12EX in strict compliance
with such safety regulations.
• The responsible personnel must train the assigned personnel for the correct use, installation, maintenance, and operation of the SL-R12EX. “Machine operators” refers to personnel who have received
appropriate training from the responsible personnel and are qualified to operate the device correctly.
• Machine operators must receive specialized training for the SL-R12EX and must understand and follow
the safety regulations for the country or region in which they are using the SL-R12EX.
• When the SL-R12EX fails to operate properly, machine operators must immediately stop the use of the
device and report this fact to the responsible personnel.
• The SL-R12EX is designed with the assumption that it would be properly installed in accordance with the
installation procedures described in this instruction manual and operated according to the instructions in
this instruction manual. Perform an appropriate installation of the SL-R12EX after conducting a sufficient
risk assessment for the target machine.
• This device should be processed as an industrial waste product when being disposed.
iii
3. Warning
■ Operators
• In order for the SL-R12EX to operate properly, the responsible personnel and machine operators must
follow all procedures described in this instruction manual.
• No person other than the responsible personnel and machine operators should be allowed to install or
test the SL-R12EX.
• When performing electrical wiring, always follow electrical standards and regulations for the country or
region in which the SL-R12EX is being used.
■ Usage environment
• Do not use the device in an environment (temperature, humidity, interfering light, etc.) that does not
conform to the specifications contained in this instruction manual.
• Do not use wireless devices such as cellular phones or transceivers in the vicinity of the SL-R12EX.
• The SL-R12EX is not designed to be explosion-proof. Never use it in the presence of flammable or
explosive gases or elements.
• Do not use the SL-R12EX in the presence of substances, such as heavy smoke, particulate matter, or
corrosive chemical agents, that may induce deterioration in product quality.
■ Target machine
• The SL-R12EX has not undergone the model certification examination in accordance with Article 44-2
of the Japanese Industrial Safety and Health Law. The SL-R12EX, therefore, cannot be used in Japan
as a “Safety Device for Press and Shearing machines” as established in Article 42 of that law.
• The machine on which the SL-R12EX is to be installed must be susceptible to an emergency stop at all
operating points during its operation cycle. Do not use the SL-R12EX for machines with irregular stop
times.
• Do not use the SL-R12EX for power presses equipped with full-revolution clutches.
• Do not use the SL-R12EX to control (stop forward motion, etc.) trains, cars and other transportation
vehicles, aircraft, equipment for use in space, medical devices, or nuclear power generation systems.
• The SL-R11 is designed to protect people or objects from entering a machine’s hazardous zone or
hazard. It cannot provide protection against objects or materials that are displaced from the machine's
hazardous zone or hazard, and so implement additional safety measures such as installing safeguards
when there is the possibility of such displacements.
■ Installation
• Install the SL-R12EX inside an enclosure such as a control panel that offers a rating of at least IP54 in
accordance with the IEC 60529 standard.
• The SL-R12EX is a special controller unit for the Safety Light Curtain SL-C Series and the Intelligent
Safety Relay Unit SL-R11, so be sure to connect it to the SL-C Series and SL-R11 when using it.
• The SL-C**L Series with the detection capability of ø45 mm (1.77") cannot be used in combination with
the SL-R12EX.
■ Function
• When floating blanking function is carried out, the SL-C series cannot keep the original detection
capability. The detection capability of the SL-C**F Series varies among ø14 mm (0.55"), ø24 mm
(0.94"), ø34 mm (1.33"), and ø44 mm (1.73") according to the exact settings used. The detection
capability of the SL-C**H Series varies among ø25 mm (0.98"), ø45 mm (1.77"), ø65 mm (2.56"), and
ø85 mm (3.35") according to the exact settings used. Therefore you must accurately calculate the new
safety distance and install the SL-C Series at the minimum safety distance separately from the
hazardous zone or hazards.
• When fixed blanking function is carried out, it may create a hazardous zone allowing human approach
between the obstacle and the SL-C Series against which the SL-C Series provides no protection. Be
sure to install additional safety protective equipment.
• Enabling the blanking blind protection function does not necessarily remove all hazardous zones
allowing human approach. Depending on the target machine, installation of the blanking blind protection
unit may result in the creation of one or more hazardous zones allowing human approach. Be sure to
read “4-4 Blanking blind protection function” (➮4-4) in this manual before installing or using this unit.
This function can only be used in the SL-C**H Series with the detection capability of ø25 mm (0.98").
• The muting function deactivates the light curtain's safety functions while the light curtain detects the
input signal from one or more muting devices (sensors, switches, etc.). The muting devices (sensors,
switches, etc.) that are used to carry out the muting function as well as the method to install them must
satisfy all the conditions described in this instruction manual as well as the applicable requirements
imposed by all laws, regulations, standards, and ordinances in effect in the country and region where
the SL-R12EX is to be used. Failure to follow this warning results in significant harm to machine operators, including serious injury or death.
ENGLISH
iv
• The following conditions must be considered before installing muting devices (sensors, switches, etc.) to
carry out the muting function.
1. The muting function of the light curtain is only permitted during the nonhazardous portion of the
machine cycle.
2. Muting devices must not get active and the light curtain (SL-C Series) must not go to the muting state
even if a person inadvertently approaches the light curtain's detection zone.
• Setting the muting function and muting device configuration must be restricted to an extremely limited
number of the responsible personnel.
• Any personnel other than the responsible personnel must not easily change the position at which the
muting devices are installed. When the muting devices are moved, the procedure must require the
use of specialized tools and must be performed under the responsibility of the responsible personnel.
• Customers who carry out the muting function bear sole responsibility for complying with the requirements imposed on that function. KEYENCE makes no guarantee regarding damage arising from installation, orientation, usage, or maintenance not in accordance with what is described in this instruction
manual, or from the failure to follow all applicable legal regulations in effect in the country and region in
which the SL-R12EX is used.
• The muting lamp or the SL-R12D must be installed prior to carrying out the muting function on the SL-C
Series. The muting lamp or the SL-R12D must be installed at the location where it can always be clearly
and easily visible for the machine operators or the responsible personnel in case of normal machine
operation, setting or alignment for muting or maintenance, etc.
• If it is necessary to install 2 or more muting lamps in order to satisfy the above requirements, the muting
lamps must be installed so that they are connected in series to the LAMP terminal on the SL-R12EX
terminal block. The SL-R12D cannot be used with the other muting lamps simultaneously. Therefore,
the other muting lamps must be installed instead of using the SL-R12D.
ENGLISH
English
4. Circuit Design and Wiring
• Always turn off the device power when performing electrical wiring.
• Follow electrical standards and regulations for the country or region in which the SL-R12EX is being used
when performing the electrical wiring. Only qualified persons should perform wiring.
• Do not place any cables or electrical lines used in wiring the SL-R12EX in the same duct as high-voltage
electrical or power lines or in parallel with such lines.
• The length of the cables from the blanking blind protection unit (SL-C08SB/SL-C16SB) transmitter and
receiver to the SL-R12EX must not exceed 30 m (98.43 ft.).
5. Testing and Maintenance
• Always perform testing in accordance with the test procedures after maintenance, adjustment, or calibration of the target machine or the SL-R12EX, and before the machine start-up.
• If the SL-C, SL-R11 or SL-R12EX does not operate properly when tested in accordance with the test
procedures established in this instruction manual, do not operate the machine.
• Periodically examine the machine to verify that all brakes, other stop mechanisms, and control devices
operate reliably and accurately in addition to checking for SL-C, SL-R11 and SL-R12EX.
• The responsible personnel must perform maintenance procedures as established in this instruction
manual at least once every six months to ensure safe device operation.
v
6. About Standards and Regulations
1) The SL-C Series and SL-R11/SL-R12EX comply with the following UL (Underwriters Laboratories
Inc.) Standards and have received Canada-U.S.-Listing certification from UL.
• UL61496-1 (Type 4 ESPE - Electro-Sensitive Protective Equipment)
• UL61496-2 (Type 4 AOPD - Active Opto-Electronic Protective Device)
2) The SL-C Series and SL-R11/SL-R12EX have not received the model certification examination in
accordance with Article 44-2 of the Japanese Industrial Safety and Health Law. As a result, the SLC Series and SL-R11/SL-R12EX cannot be used in Japan as a “Safety Devices for Presses and
Shearing machines” as established in Article 42 of that law.
3) The SL-C Series and SL-R11/SL-R12EX have been designed in consideration of the following
standards and regulations. For details regarding the following standards, contact the third-party
certification organization, such as UL.
<Corresponding standards>
• OSHA 29 CFR 1910.212
• OSHA 29 CFR 1910.217
• ANSI B11.1 - B.11.19
• “Guidelines for Comprehensive Safety Standards of Machinery”, July 31, 2007, number 0731001 issued
by, Ministry of Health, Labor, and Welfare in Japan.
7. Accessories
Confirm that the package includes the main unit (SL-R12EX) and following accessories.
Instruction Manual (this manual) 1 copy
ENGLISH
vi
ENGLISH
English
vii
Chapter 1 Specifications
1 Specifications
Composition
SL-C Series+ SL-R11 (Intelligent Safety Relay Unit) + SL-R12EX (Intelligent Extension Unit) + SL-U2
(Dedicated power supply unit)
SL-PC5P (5m (16.4 ft.)) cable for transmitter (gray)
* 10 m (32.81 ft.) SL-PC10P cable
SL-R11 intelligent safety relay unit
SL-R12EX intelligent extension unit
SL-U2 dedicated power supply unit
SL-C Series
1
Detection zone
SL-PC5P (5m (16.4 ft.)) cable for receiver (black)
* 10 m (32.81 ft.) SL-PC10P cable
T R
SL-U2: The UL certified, recommended dedicated power supply unit
* The SL-C**L Series with the detection capability of ø45 mm (1.77") cannot be used in combination with
the SL-R12EX.
ENGLISH
1-1
1
Chapter 1 Specifications
1-1 Part Names
This chapter gives the names of the SL-R12EX parts.
Front view
Hole for mounting screw
(for M4)
12345678
MUTE A
C A1 A2
PMB A
12345678
C A1 A2 A3
T R
UNIT BEAM
4
3
2
1
TEACHING
MUTE B
SET/TEACH
C B1 B2
PMB B
C B1 B2 B3
Blanking blind protection
unit connector (receiver)
CLEAR/
MODE
BLOCKED
STATUS
113-128
16
16
97-112
15
15
81-96
14
14
65-80
13
13
49-64
12
12
33-48
11
11
17-32
10
10
1-16
9
9
8
8
7
7
6
6
5
5
4
4
3
3
LAMP
2
2
PROG.
1
1
RUN
BLANKING
FIXED
FLOATING
B.B.P
1
P.M.
2
BANK
3
Connection hooks
Blanking blind
protection unit
connector
(transmitter)
Function switch
cover screw
Status monitor
SL-R12D status
display connector
Function switches
Input terminal
No. FUNTION UP DOWN
1
Fixed
1beam
2
Enable Disable
2beams
Floating
3
3beams
4
Mute
5
Enable Disable
Programmable
6
Mute Blanking
Inputs
4in 2in
7
MODE SWITCH
Blanking Blind Protect
8
W W/O
Front view
12345678
12345678
T R
UNIT BEAM
4
3
2
1
TEACHING
SET/TEACH
PROG.
RUN
113-128
97-112
81-96
65-80
49-64
33-48
17-32
1-16
CLEAR/
BLOCKED
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BLANKING
FIXED
FLOATING
B.B.P
P.M.
BANK
MODE
STATUS
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
KEYENCE CORPORATION
SL-R12EX
For use with SL-R11 only.
RATED CURRENT 110 mA
TYPE OF ESPE TYPE 4
MADE IN JAPAN
No.
Hole for mounting screw
(for M4)
Side
SL-U2
mounting
holes
SL-R11
mounting
holes
Input terminal
SL-R11 connector
Bottom
Rear
DIN rail
mating area
Din rail
lock pin
ENGLISH
English
SL-U2 connector
*Covered by tape at
time of shipment.
1-2
1-2 Specifications
Chapter 1 Specifications
Model
Power supply
Current consumption
Muting
device inputs
Inputs
Bank
switching
inputs
Muting lamp output
Protective structure
Ambient temperature
Storage ambient temperature
Environmental
specifications
Material
Weight
Approved
standards
Relative humidity
Storage ambient humidity
Vibration
Shock
EMC
Safety
EMS
EMI
Max. input voltage
Input rating
Min. ON voltage
Min. OFF current
Common wiring
Max. input voltage
Input rating
Min. ON voltage
Min. OFF current
Common wiring
Permissible timing
lag between 2 inputs
SL-R12EX
Supplied from SL-U2
Max. 110 mA (24 V DC, including SL-R12D)
26.4 V DC
24 V DC, 2.3 mA
19 V
0.5 mA
A1 and A2 are common; B1 and B2 are common.
26.4 V DC
24 V DC, 1.6 mA
19 V
0.5 mA
A1, A2, and A3 are common; B1, B2, and B3 are common.
Max. 200 ms
24 V DC, 15 to 300 mA
IP20 (IEC60529) Must be installed inside a control panel with at least an IP54 rating.
-10 to +55 °C (No frost)
-10 to +60 °C (No frost)
35 to 85% RH (No condensation)
35 to 95% RH
10 to 55 Hz, 0.7 mm (0.03") compound amplitude, 20 sweeps
each in X, Y, and Z directions
100 m/s2 (Approx. 10G) 16 ms pulse, in X, Y, Z directions 1,000 times each axis
Polycarbonate
Approx. 300 g
UL61496-1
FCC Part15B Class A
UL61496-1 (type 4 ESPE)
UL508
1
1-3
ENGLISH
Chapter 1 Specifications
1
Model
Detection zone
Beam axis interval
Operating distance
Detection capability
Effective Aperture Angle
Response time
Power supply
Current consumption
Light source
Operation form
Protective structure
Ambient temperature
Storage ambient temperature
Environmental
specifications
Material
Weight
Relative humidity
Storage ambient humidity
Ambient light
Vibration
Shock
Main unit case
Upper case/Lower case
Overlay
SL-C08SB, SL-C16SB
Depends on sensors used.
Beam axis interval: 20 mm (0.79"), Lens diameter: 5.0 mm (0.2")
0.3 to 9 m (0.98 to 29.53 ft.) *Limited by operating distance of sensors used.
ø 25mm (0.98")
Max. ±2.5° (When operating distance is at least 3 m (9.84 ft.))
24 ms (including sensor and SL-R11 response speed)
Supplied from SL-R12EX
Transmitter: Max. 50 mA (24 V DC)
Receiver: Max. 50 mA (24 V DC)
Infrared LED (850 nm)
Turns on when light is received from all light beams (except when
the blanking function is used)
IP65 (IEC60529)
-10 to +55 °C (No frost)
-10 to +60 °C (No frost)
35 to 85% RH (No condensation)
35 to 95% RH
White incandescent lamp: 5,000rx or less Sunlight: 20,000rx or less
10 to 55 Hz, 0.7 mm (0.03") compound amplitude, 20 sweeps each in X, Y, and Z directions
100 m/s2 (Approx. 10G) 16ms pulse, in X, Y, Z directions 1,000 times each axis
Aluminum
Zinc die-cast
Polycarbonate
SL-C08SB: Transmitter approx. 165 g, Receiver approx. 180 g
SL-C16SB: Transmitter approx. 255 g, Receiver approx. 280 g
ENGLISH
English
Model
Power supply
MUTE lamp brightness Min.
Area
Protective structure
Ambient temperature
Environmental
specifications
Material
Weight
Approved
standards
Storage ambient temperature
Relative humidity
Storage ambient humidity
Vibration
Shock
EMC
Safety
EMS
EMI
SL-R12D
Supplied from SL-R12EX
Min. 200 cd/m
2
3 cm
IP65 (IEC60529) Applies to display only when mounted so device
is embedded in a panel.
-10 to +55 °C (No frost)
-10 to +60 °C (No frost)
35 to 85% RH (No condensation)
35 to 95% RH
10 to 55 Hz, 0.7 mm (0.03") compound amplitude, 20 sweeps
each in X, Y, and Z directions
100 m/s2 (Approx. 10G) 16ms pulse, in X, Y, Z directions 1,000 times each axis
Polycarbonate
Approx. 60 g (excluding cables)
UL61496-1
FCC Part15B Class A
UL61496-1
UL508
2
1-4
1-3 External Dimensions Diagram
Chapter 1 Specifications
SL-U2
11 (0.43")
2-ø4.2
35 (1.38")
24
(0.94")
(0.43")
11
100
(3.94")
(96.6 (3.8"))
SL-C08SB
(0.14")
26.4
(1.04")
SL-R12EX
3.5
3.5
25.8
(1.02")
35.9 49.8
35.9
(1.41")
111
(4.37")
85.5
(112)
(135)
2-ø4.2
(4.88")
124
15.4
(0.61")
68 (2.68")
60 (2.36")
27
(1.06")
11 (0.43")
49 (1.93")
12.5 (0.49")
135
(5.31")
SL-R12D
72
(2.83")
Bottom
58
(2.28")
48
(1.89")
34
(1.34")
(0.3")
(65 (2.56"))
7.5
21.7
(0.85")
Panel cut dimensions
4-M3
depth 5
ø29.2
(1.15")
9.6 (0.38")
5.6 (0.22")
17
(0.67)
(1.34")
Panel
thickness
1 to 5 mm
(0.04 to 0.2")
34
ø30
(1.18")
29
(1.14")
4-ø3.4
+1
0
58
(2.28")
1
SL-C16SB
28
(1.1")
5.5 (0.22")5.5 (0.22")
26.4
(1.04")
28
(1.1")
5.5 (0.22")5.5 (0.22")
10.8 (0.43")
151 (5.94")
311 (1.02 ft.)
4.5 (0.81")
10.8 (0.43")
ENGLISH
4.5 (0.18")
1-5
Chapter 1 Specifications
1-4 Power Supply Precautions
1
1-4-1
The power supply units that can be used as the power supply for SL-C Series, SL-R11 and SL-R12EX must
completely satisfy the following requirements in order to satisfy the requirements of UL61496-1 for the SL-C
Series, SL-R11, and SL-R12EX.
(a) Rated output voltage is 24V DC ±10%.
(b) The power supply to be used shall be a dedicated power supply for the SL-C Series, SL-R11 and/or SL-
(c) The power supply output must satisfy the requirements for a Class 2 Circuit or Limited Voltage/Current
(d) The power supply must comply with the laws, regulations, and standards covering electrical safety,
(e) The output hold time is 20 ms min.
Power Units that Can Be Used as Power Supplies for SL-C Series and SL-R11/SL-R12EX
R12EX and shall not be used to supply power to other devices.
Circuit as prescribed by UL508. (This requirement applies only when the SL-C Series, SL-R11 and/or SLR12EX is to be used in North America.)
electromagnetic compatibility (EMC), etc., for the country or region in which the SL-C Series, SL-R11 and/
or SL-R12EX will be used.
1-4-2 Recommended Dedicated Power Supply Unit
The SL-U2 is offered as the SL-C Series, SL-R11 and SL-R12EX dedicated power supply. The SL-U2 is a
power supply that completely satisfies the above requirements.
<Approved standards>
Standard No.
EN60950
Safety EN50178
standard UL60950 (R/C)
UL508 (Listing)
EN55011 Class A
EMC standard EN61000-6-2
FCC Part 15B Class A
ENGLISH
English
SL-U2
SL-U2
OC
+
24V DC
PE (GND)*
240 V AC
(*) The PE terminal is a protective conductor terminal that must be connected to a protective earthing
conductor in the building.
100 to
–
100-240V AC
CAUTION
ONLY
+
Connection hooks
-
L
N
1-6
<Specification>
Chapter 1 Specifications
Model
System
Input power supply voltage
Overvoltage category
Output voltage
Ripple/noise
Output capacity
Environment
Pollution degree
Withstand voltage
Vibration resistance
Shock resistance
Insulation resistance
Power consumption 135VA
Supply voltage interruption 10 ms or less
Weight (excluding dedicated brackets)
WARNING
Ambient temperature
Relative humidity
For the power supply used for the SL-C Series, SL-R11 and SL-R12EX, always
use a power supply that can fully satisfy the above requirements or use recommended SL-U2 power supply. Otherwise, the UL61496-1 requirements may not be
satisfied and the SL-C Series, SL-R11 and SL-R12EX may not be recognized as a
safety component.
Switching type
100 V AC to 240 V AC ±10 % (50/60 Hz)
2
24 V DC ±10 %, Class 2
240 mVp-p or less
1.8 A
-10 °C to +55 °C (non-freezing)
35 % to 85 % RH (non-condensing)
2
1,500 V AC, 1 min. (between all external terminals and case)
10 to 55 Hz, 0.7 mm (0.03") compound amplitude, 20 sweeps each in X, Y, and Z directions
100 m/s2, 1,000 iterations each in X, Y, and Z directions
At least 50 MW (500 V DC mega, between all external terminals and case)
Approx. 240 g
SL-U2
1
1-7
ENGLISH
1
Chapter 1 Specifications
MEMO
ENGLISH
English
1-8
Chapter 2 Functions
2 Functions
2-1 Foreword
This section describes the functions that are provided by the SL-R12EX. These functions allow you to
configure various settings related to the detection performance of the SL-R11 and SL-C Series devices that
are connected to the SL-R12EX and can be set for individual SL-C Series beam axes. For this reason,
references throughout this text to “detection capability” and “beam axes” should be understood to refer to the
detection capability and beam axes of the SL-C Series.
2-2 Floating blanking function
When this function is carried out, the SL-C series cannot keep the original
WARNING
detection capability. The detection capability of the SL-C**F Series varies among
ø14 mm (0.55"), ø24 mm (0.94"), ø34 mm (1.33"), and ø44 mm (1.73") according
to the exact settings used. The detection capability of the SL-C**H Series varies
among ø25 mm (0.98"), ø45 mm (1.77"), ø65 mm (2.56"), and ø85 mm (3.35")
according to the exact settings used. Therefore you must accurately calculate the
new safety distance and install the SLC Series at the minimum safety distance
separately from the hazardous zone or hazards. When installing the SL-C Series
onto/into a machine, always follow the instructions in the SL-C Series Instruction
Manual. Failure to follow this warning may result in significant harm to machine
operators, including serious injury or death.
2
Normally, the FSD turns OFF-state when an obstacle blocks even a
single SL-C Series beam axis. When this function is enabled, the FSD
keeps ON-state in the event that only a preset number (between 1 and
3) of beam axes are blocked. Only when the number of beam axes
blocked by the objects exceeds that preset number, the FSD turns
OFF-state.
In order to carry out this function, the SL-C Series need not be a single
transmitter/receiver pair. This function can be set for all beam axes on
all SL-C Series units connected in series. (See the right diagram.)
See “4-2 Floating blanking function” (➮4-2) for more information about
how to set or configure this function.
This function can be configured in one of three ways, as indicated
below.
<Example configuration>
: Zone where floating blanking
function is active
Connected
in series
2-2-1 Floating blanking for 1 beam axis
The FSD keeps ON-state when only 1 beam axis is blocked, and turns OFF-state when 2 or more beam
axes are blocked. Note that for the SL-C**F Series the detection capability is ø24 mm (0.94"), and for the SLC**H Series the detection capability is ø45 mm (1.77").
ENGLISH
●: Object blocking beam axis
FSD keeps ON-state
●: Object blocking beam axis
FSD is OFF-state
●: Object blocking beam axis
FSD is OFF-state
2-1
2
Chapter 2 Functions
2-2-2 Floating blanking for 2 beam axes
The FSD keeps ON-state when 1 or 2 beam axes are blocked, and turns OFF-state when 3 or more beam
axes are blocked. Note that for the SL-C**F Series the detection capability is ø34 mm (1.33"), and for the SLC**H Series the detection capability is ø65 mm (2.56").
2-2-3 Floating blanking for 3 beam axes
The FSD keeps ON-state when 1, 2, or 3 beam axes are blocked, and turns OFF-state when 4 or more
beam axes are blocked. Note that for the SL-C**F Series the detection capability is ø44 mm (1.73"), and for
the SL-C**H Series the detection capability is ø85 mm (3.35").
2-3 Fixed blanking function
ENGLISH
English
WARNING
Normally, the FSD keeps the ON-state only when all beam axes are
clear of any obstruction (that is, when there are no obstacles present
in the detection zone). The Fixed blanking function is enabled only for
the beam axes in the zone initially specified by the user and allows the
FSD to keep ON-state when an obstacle blocks the beam axes in that
zone.
For example, if an obstacle blocks the beam axes of the SL-C Series,
the FSD turns OFF-state (see the right diagram.) In contrast, if the
light curtain is configured to enable fixed blanking, the FSD keeps ONstate when an obstacle blocks these pre-set beams. It allows the
target machine to continue the normal operation. Conversely, if the
obstacle is removed from the detection zone while this function is
carried out, the FSD turns OFF-state and it causes the machine stop.
Note that enabling this function may create hazardous zones, allowing
human approach against which the SL-C Series provides no protection. It is required to install additional safety protective equipment like
a cover designed to prevent human approach.
In order to carry out this function, the SL-C Series need not be a
single transmitter/receiver pair The function can be configured to be
operational for all beam axes on all SL-C Series units connected in
series. (See the right diagram.)
See “4-3 Fixed blanking function” (➮4-3) for more information about
how to set or configure this function.
When this function is carried out, it may
create a hazardous zone allowing human
approach between the obstacle and the SL-C
Series against which the SL-C Series provides no protection. (See the right diagram.)
Be sure to install additional safety protective
equipment, such as a safe guard, for this
zone. When installing the SL-C Series into/
onto a machine, always follow the instructions
in the SL-C Series Instruction Manual. Failure
to follow this warning may result in significant
harm to machine operators, including serious
injury or death.
Obstacle
: Hazardous zone allowing
human approach
<Example configuration>
Obstacle
Obstacle
Obstacle
: Zone where fixed blanking
function is active
Connected
in series
2-2
2-4 Blanking blind protection function
Chapter 2 Functions
WARNING
This function is an advanced improvement of the fixed blanking function.
It can be used to eliminate the hazardous zone allowing human approach
that arises when the conventional fixed blanking function is enabled.
(Subject to the above warning.)
A blanking blind protection unit (SL-C08SB or SL-C16SB) is required in
order to enable this function. As shown in the right diagram, the blanking
blind protection unit is placed on either side of the obstacle so that the SL-C
Series transmitter faces the blanking blind protection unit's receiver, and the
blanking blind protection unit's transmitter faces the SL-C Series receiver,
with all beam axes aligned. This configuration may eliminate the hazardous zones allowing human approach that are created by the obstacle.
Be sure to read “4-4 Blanking blind protection function” (➮4-4) carefully
for more information about how to set and install this unit before use.
Enabling the blanking blind protection function does not necessarily remove all
hazardous zones allowing human approach. Depending on the target machine,
installation of the blanking blind protection unit may result in the creation of one or
more hazardous zones allowing human approach. Be sure to read “4-4 Blanking
blind protection function” (➮4-4) in this manual before installing or using this unit.
When installing the SL-C Series into/onto a machine, always follow the instructions
in the SL-C Series Instruction Manual. Failure to follow this warning may result in
significant harm to machine operators, including serious injury or death.
2-5 Muting function
SL-C Series
Obstacle
Blanking blind protection unit
2
2-5-1 Muting function
• The muting function deactivates the light curtain's safety functions while the light
DANGER
curtain detects the input signal from two or more muting devices (sensors,
switches, etc.). The muting devices (sensors, switches, etc.) that are used to carry
out the muting function as well as the method to install them must satisfy all
conditions described in this instruction manual as well as the applicable requirements imposed by all laws, regulations, standards, and ordinances in effect in the
country and region where the SL-R12EX is to be used. Failure to follow this
warning results in significant harm to machine operators, including serious injury
or death.
• The following conditions must be considered before installing muting devices
(sensors, switches, etc.) to carry out the muting function.
1. The muting function of the light curtain is only permitted during the nonhazard-
ous portion of the machine cycle.
2. Muting devices must not get active and the light curtain (SL-C Series) must
not go to the muting state even if a person inadvertently approaches the light
curtain's detection zone.
These are minimum requirements. Always follow the regulations in effect in the
country and region where the SL-R12EX is used.
In addition, you must take note of the following information if you carry out the
muting function.
• Muting of the light curtain shall be accomplished in such a manner that no
single component failure shall prevent the normal stop command and shall
prevent subsequent machine cycles until the failure is corrected. (ANSI B11.19)
• Setting the muting function and muting device configuration must be restricted
to an extremely limited number of the responsible personnel.
• Any personnel other than the responsible personnel must not easily change
the position at which the muting devices are installed. When the muting devices are moved, the procedure must require the use of specialized tools and
must be performed under the responsibility of the responsible personnel.
ENGLISH
2-3
Chapter 2 Functions
The muting function supported by the SL-C Series can be classified into two types.
I)A muting function where the safety functions of all beam axes, including those on SL-C Series units
connected in series, are disabled when the signals from the muting devices are ON (active).
II)A muting function (called as the programmable muting function) where the safety functions of pre-defined
beam axes are disabled when the signals from the muting devices are ON (active).
For all beam axes for which either of the functions described in I and II is enabled, the FSD keeps ON-state
even when those beam axes are blocked by the detection capability.
Both of the functions described in I and II above support either 2 or 4 input signals from the muting devices,
comprising the 4 types of muting function described below.
2
Examples of 2-input muting
See the pages starting with “2-5-2 Two-input muting” (➮2-8) for detailed time charts of this function.
1. Using 2 retro-reflective photoelectric sensors (Keyence model PZ-M61, etc.) as muting devices
(1) (2) (3)
Safe zone Hazardous zone
Sensor A1
Workpiece
Sensor A2
SL-C Series
Sensor A1 OFF ON OFF
Sensor A2 OFF ON OFF
SL-C Series state
Safe zone Hazardous zone
Reflector
Reflector
Sensor A1 Sensor A1
Workpiece
Sensor A2
SL-C Series
Reflector
Reflector
(1) (2) (3)
Safety functions enabled Safety functions disabled Safety functions enabled
(Normal operation) (Muting function enabled) (Normal operation)
Safe zone Hazardous zone
Sensor A2
SL-C Series
Reflector
Workpiece
Reflector
ENGLISH
English
* In the example described above, 2 muting devices are installed so that the location where their beam
axes intersect falls within the hazardous zone. This prevents the muting function from being active even if
a person inadvertently passes the point where the beams intersect.
2-4
2. Using 2 cam switches as muting devices for a mechanical presses, etc.
(1) (2) (3) (4) (5)
Switch A1
SL-C Series state
Switch A2
Cam
Sensor A1 OFF ON ON OFF OFF
Sensor A2 OFF ON ON ON OFF
Machine state Bottom dead center Rising
A2
A1
(1) (2) (3) (4) (5)
Safety functions enabled Safety functions disabled Safety functions enabled
(Normal operation) (Muting function enabled) (Normal operation)
A1
A2
A2
A1
Top dead Starting to
center fall
Chapter 2 Functions
A2
A1
Falling
2
WARNING
The SL-R12EX has not received the model certification examination in accordance
with Article 44-2 of the Japanese Industrial Safety and Health Law. As a result, the
SL-R12EX cannot be used in Japan as a “Safety Device for Presses and Shearing
machines” as established in Article 42 of that law.
When using the SL-C Series, including SL-R11 and SL-R12EX with mechanical
press equipment in the United States, check the regulations stipulated in
OSHA1910.217 and ANSI B11.1, B11.2, and B11.3, and be sure to follow those
regulations in both the installation and use.
2-5
ENGLISH
Chapter 2 Functions
Examples of 4-input muting
See the pages starting with “2-5-3 Four-input muting” (➮2-9) for detailed time charts of this function.
1. Using 4 thrubeam photoelectric sensors (KEYENCE model PZ-M51, etc.) as muting devices
2
(1) (2)
Sensor A1
Workpiece
(3) (4)
Safe zone Hazardous zone
Sensor A2
SL-C Series
Safe zone Hazardous zone
A2
Sensor
Sensor A1
Workpiece
Sensor B1
Sensor B2
Sensor B1
Sensor B2
Sensor
Workpiece
Sensor A1
Sensor
Sensor B2
B 1
Sensor
Safe zone Hazardous zone
A 2
Sensor
A1
SL-C Series
Safe zone Hazardous zone
Sensor A2
Sensor B1
Workpiece
B 2
ENGLISH
English
SL-C Series
(5) (6)
Sensor A1
Safe zone Hazardous zone
Sensor A2
Sensor B1
Sensor B2
Workpiece
SL-C Series
Sensor A2
Sensor A1
SL-C Series
Safe zone Hazardous zone
Sensor B1
Sensor B2
Workpiece
SL-C Series
2-6
State (1) (2) (3) (4) (5) (6)
Sensor A1 OFF ON ON ON OFF OFF
Sensor A2 OFF OFF ON ON OFF OFF
Sensor B1 OFF OFF OFF ON ON OFF
Sensor B2 OFF OFF OFF ON ON ON
SL-C Series state
* Muting device location in the above examples
(Normal operation) (Muting function enabled) (Normal operation)
Safety functions enabled Safety functions disabled Safety functions enabled
Chapter 2 Functions
Safe zone Hazardous zone
Sensor A2
Sensor A1
Workpiece
L
See “4-5 Muting function” (➮4-10) for information about how to set or configure these functions.
In order to carry out this function, you must install muting devices (sensors, switches, etc.) and a muting
lamp (SL-R12D is recommended). See “4-5-1 Muting devices” (➮4-10) for information about muting device
requirements and “4-5-2 Muting lamps” (➮4-12) for information about muting lamp requirements.
The information presented up to this point is intended as an example of typical requirements. The satisfaction of these requirements must not be understood as being equivalent to the satisfaction of all regulations
imposed on the muting function (including methods of installation and use) being used by the customer.
Therefore, KEYENCE does not guarantee the validity and/or accuracy for use, installation and orientation
methods of the muting devices that the customers made. Accordingly, customers intending to carry out the
muting function must check the all applicable regulations in effect in the country and region where the SLR12EX is used.
S
SL-C Series
D2 D3
Sensor B1
Sensor B2
D1
As indicated in the diagram to the left, L represents the
workpiece length, while S indicates the speed of the
workpiece as it approaches the light curtain's detection
zone.
When installing the muting devices, the following conditions must be fully satisfied.
D1: The distance between A1 and B2
D2: The distance between A1 and A2
D3: The distance between B1 and B2.
L: The length of the workpiece
S: The speed of the workpiece
(1) D1 < L
(2) D2 < S X 3 (seconds)
(3) D3 < S X 3 (seconds)
2
WARNING
Customers who carry out the muting function bear sole responsibility for complying
with the requirements imposed on that function. KEYENCE makes no guarantee
regarding damage arising from installation, orientation, usage, or maintenance not
in accordance with what is described in this instruction manual, or from the failure
to follow all applicable regulations in effect in the country and region in which the
SL-R12EX is used.
ENGLISH
2-7
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