KEYENCE SL-R11 User Manual
96M13268
IntelligentSafetyRelayUnit
SL-R11
InstructionManual
NOTICE
Do not attempt to operate or service this machine
until you have read and understood 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 .....................................................................................................................iv
5. Testing and Maintenance.......................................................................................................................v
6. About Standards and Regulations........................................................................................................v
7. Accessories ............................................................................................................................................ v
1Specifications
Integration with the SL-C ...................................................................................................................... 1-1
1-1 Part Names .......................................................................................................................................... 1-2
1-2 Specifications ..................................................................................................................................... 1-3
1-3 External Dimensions Diagram .......................................................................................................... 1-3
1-4 Power Supply Precautions ................................................................................................................ 1-4
1-4-1 Power Units that Can Be Used as Power Supplies for SL-C Series and SL-R11 ....................... 1-4
1-4-2 Recommended Dedicated Power Supply Unit ............................................................................ 1-4
2 Functions
ENGLISH
English
2-1 Start Interlock ..................................................................................................................................... 2-1
2-2 Restart Interlock ................................................................................................................................. 2-1
2-3 E-STOP Input ...................................................................................................................................... 2-1
2-4 MPCE (Machine Primary Control Element) Monitor ........................................................................ 2-2
2-5 Main/Sub Setting ................................................................................................................................ 2-3
2-6 TEST Input .......................................................................................................................................... 2-3
2-7 FSD Output ......................................................................................................................................... 2-3
2-8 AUX Output ......................................................................................................................................... 2-3
2-9 Relay Replacement and Terminal Block Installation Removal Function ....................................... 2-4
2-10 Status Indicators ................................................................................................................................ 2-4
2-11 Mode Switch Settings ........................................................................................................................ 2-5
2-12 I/O Circuit ............................................................................................................................................ 2-7
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 Recommended Dedicated Power Supply .............................................. 3-3
i
4 Wiring
4-1 Method for Connection to the SL-C Series ...................................................................................... 4-1
4-2 Method for Wiring to the Relay Output Terminal.............................................................................. 4-1
4-2-1 How to Replace the Relay Output Terminal Block ...................................................................... 4-2
4-3 Method for Wiring to Signal Input Terminals.................................................................................... 4-3
4-3-1 Wiring to Start/Restart Input Terminals ....................................................................................... 4-4
4-3-2 Wiring to E-STOP Input Terminals .............................................................................................. 4-5
4-3-3 Wiring to the MPCE Monitor Input Terminal ................................................................................ 4-6
4-3-4 Connecting to Main/Sub Select Input Terminal ........................................................................... 4-7
4-3-5 Wiring to the Test Input Terminal ................................................................................................. 4-8
4-4 About the Light Interference Prevention Connection ..................................................................... 4-9
4-4-1 What is a Light Interference Prevention Connection? ................................................................. 4-9
4-4-2 Parts Required for Connection .................................................................................................... 4-9
4-4-3 Main/Sub Switching Input Setting ............................................................................................... 4-9
4-4-4 Wiring Connections ..................................................................................................................... 4-9
5 Checklist
5-1 List of Pre-use Check Items .............................................................................................................. 5-1
5-1-1 First, Check the SL-R11 Installation Conditions ......................................................................... 5-1
5-1-2 Check the Wiring Before Turning on the Power ......................................................................... 5-1
5-1-3 Check Using an Operation Test While Machine is Stopped ....................................................... 5-1
6 Maintenance
6-1 Regular Inspections ........................................................................................................................... 6-1
6-1-1 Output Relay Inspection .............................................................................................................. 6-1
6-1-2 E-STOP Function Check ............................................................................................................. 6-1
6-2 Relay Circuit Board Replacement ..................................................................................................... 6-1
7Troubleshooting
Troubleshooting .................................................................................................................................... 7-1
8Revision History
Revision History .................................................................................................................................. 8-1
96M13268
ENGLISH
ii
Safety Precautions
This manual describes handling, operation, and precautionary information for the Intelligent Safety Relay
Unit (SL-R11). Read this manual thoroughly before operating the SL-R11 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.
ENGLISH
English
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-R11, 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-R11 is a special controller unit for the Safety Light Curtain SL-C Series.
Therefore, be sure to refer to and strictly observe the precautions and warnings
written in the SL-C Series Instruction Manual.
2. General Precautions
•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-R11 if it is used in a manner that
differs from the SL-R11 specifications contained in this instruction manual or if the SL-R11 is modified.
• When using the SL-R11 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-R11 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-R11 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-R11 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-R11. “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-R11 and must understand and follow the
safety regulations for the country or region in which they are using the SL-R11.
• When the SL-R11 fails to operate properly, machine operators must immediately stop the use of the
device and report this fact to the responsible personnel.
• The SL-R11 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-R11 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-R11 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-R11.
• When performing electrical wiring, always follow electrical standards and regulations for the country or
region in which the SL-R11 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-R11.
• The SL-R11 is not designed to be explosion-proof. Never use it in the presence of flammable or explo-
sive gases or elements.
• Do not use the SL-R11 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-R11 has not undergone the model certification examination in accordance with Article 44-2 of
the Japanese Industrial Safety and Health Law. The SL-R11, 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-R11 is to be installed must be susceptible to an emergency stop at all
operating points during its operation cycle. Do not use the SL-R11 for machines with irregular stop times.
• Do not use the SL-R11 for power presses equipped with full-revolution clutches.
• Do not use the SL-R11 to control (stop forward motion, etc.) trains, cars and other transportation vehi-
cles, 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-R11 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-R11 is a special controller unit for the Safety Light Curtain SL-C Series, so be sure to connect it
to the SL-C Series when using it.
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-R11 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-R11 in the same duct as high-voltage
electrical or power lines or in parallel with such lines.
• Do not extend transmitter and receiver cables over a maximum distance of 30 meters (98.43 ft.).
• Install the mechanism used to reset the interlock (switches, etc.) in a position from which the condition of
the entire hazardous zone can be checked. Do not install the reset mechanism in a position where it can
be operated within the hazardous zone.
• The control outputs (OSSD for SL-C Series or FSD for SL-R11) of the two systems provided in the SL-C
must both be used to build a safety system. Building a safety system with just one of these systems
cannot stop the machine due to a control output malfunction and can result in a serious accident, including serious injury or death to the machine operator.
• The AUX relay output provided in the SL-R11 is not an output for the safety system, so it cannot be used
as a control output (so called FSD) to stop the machine. If using the AUX relay as a relay output to build a
safety system and stop the machine, it could result in the serious injury or death of the machine operator.
• The FSD relays provided in the SL-R11 can be replaced, but when making the replacement, the replacement relay circuit board (OP-42364) provided by KEYENCE must be used. If another relay is used for
replacement, the SL-C Series or SL-R11 might malfunction, or a serious accident causing the serious
injury or death of the machine operator might occur.
• When wiring the SL-R11 output terminal to the machine control circuit of a machine containing the SL-C,
check with the machine manufacturer to make sure the wiring is appropriate for the machine being used
to ensure that the machine can be stopped correctly. If the wiring is not done correctly for the machine, a
serious accident, such as serious injury or death to the machine operator could result.
ENGLISH
iv
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-R11, and before the machine start-up.
• If the SL-C or SL-R11 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 and SL-R11.
• The responsible personnel must perform maintenance procedures as established in this instruction
manual at least once every six months to ensure safe device operation.
6. About Standards and Regulations
1) The SL-C and SL-R11 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 and SL-R11 have not received the model certification examination in accordance with
Article 44-2 of the Japanese Industrial Safety and Health Law. Therefore, the SL-C Series and SLR11 cannot be used in Japan as a “Safety Devices for Presses and Shearing machines” as established in Article 42 of that law.
ENGLISH
English
3) The SL-C Series and SL-R11 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-R11) and following accessories.
Instruction Manual (this manual) 1 copy
v
Chapter 1 Specifications
1 Specifications
Integration with the SL-C
SL-C Series+ SL-R11 (Intelligent Safety Relay Unit) + SL-U2 (Dedicated power supply unit)
Detection zone
SL-PC5P (5m (16.4 ft.)) cable for transmitter (gray)
* 10 m (32.81 ft.) SL-PC10P cable
1
SL-R11 intelligent safety relay unit
SL-U2 dedicated power supply unit
SL-U2: The UL certified, recommended dedicated power supply unit
SL-PC5P (5m (16.4 ft.)) cable for receiver (black)
* 10 m (32.81 ft.) SL-PC10P cable
1-1
ENGLISH
Chapter 1 Specifications
1-1 Part Names
This chapter gives the names of the SL-R11 parts.
1
SL-C Series connector,
SL-C Series connector,
"T" side
"R" side
Mode switch
cover fastener
See Instruction Manual.
See Instruction Manual.
Front view
Hole for mounting screw
(for M4)
T R
T R T R
Mode switches
POWER
RESTART
POWER
FSD-ON
FSD-ON
FSD-OFF
FSD-OFF
INTERLOCK
INTERLOCK
LOCKOUT
LOCKOUT
RESTART
TEST
TEST
MPCE
MPCE
E-STOP1
E-STOP1
E-STOP2
E-STOP2
CAUTION
CAUTION
Electric shock
Electric shock
Relay circuit board
replacement screw
Signal input
terminal block
Hole for mounting screw (for M4)
See Instruction Manual.
Front view
POWER
RESTART
FSD-ON
TEST
FSD-OFF
MPCE
INTERLOCK
E-STOP1
LOCKOUT
E-STOP2
CAUTION
Electric shock
Te rminal
replacement
screws
Relay output
terminal block
ENGLISH
English
SL-R12EX connector
*Covered by tape at
time of shipment.
SL-U2 connector
*Covered by tape at
time of shipment.
Connector for the
light interference
prevention connection
*Covered by tape at
time of shipment.
Side
Rear
SL-U2,
SL-R12EX
mounting
holes
Bottom
DIN rail
mating area
Din rail
lock pin
1-2
1-2 Specifications
Chapter 1 Specifications
Model
Safety Light Curtain
Rating
Power supply voltage
Current consumption
Output FSD1, 2
SL-R11
SL-C Series
24V DC ±10% ripple (P-P) 10% max.
150mA max. (for SL-R11 only)
230 V AC 4 A, 30 V DC 2 A (resistive load)
230 V AC 2 A, 30 V DC 1 A (cos ø=0.3) (inductive load)
AUX
125 V AC 0.5 A, 30 V DC 2 A (resistive load)
125 V AC 0.25 A, 30 V DC 1 A (cos ø=0.3) (
Lifespan
Mechanical life: 10 million times min.
Electrical life: 100,000 times min.
Response time FSD1, 2, AUX
Response time during E-STOP input
Environmental
Protective structure
specifications
Ambient temperature
Storage ambient temperature
Relative humidity
Storage ambient humidity
Vibration
24ms (including sensor response time)*
20ms
IP20 (IEC60529) (Install in control panels equal to or
greater than IP54)
-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 double amplitude width 0.7 mm, 20 sweeps
each for X, Y, Z directions
Shock
100 m/s
2
(Approx. 10G) 16ms pulse, in X, Y, Z directions
1,000 times each axis
Material
Weight
Approved EMC EMS
standards
*
EMI
1
Safety
Polycarbonate
380 g max.
UL61496-1
FCC Part 15B Class A
UL61496-1 (type 4 ESPE)
UL61496-2 (type 4 AOPD)
UL508
*1 Evaluated in combination with the SL-C Series
*2 The OFF → ON return time is 150 ms.
inductive
2
1
load)
1-3 External Dimensions Diagram
SL-U2 SL-R11
25.8
111
(4.37")
3.5 (0.14")
49.8
(1.96")
35.9
(1.41")
(ø0.17")
2-ø4.2
35 (1.38")
11 (0.43")
24
(0.94")
11
(0.43")
100
(3.94")
(96.6 (3.8"))
3.5
(0.14")
(1.02")
35.9
(1.41")
(112 (4.41"))
(102.3 (4.03"))
83.8 (3.3")
(ø0.17")
2-ø4.2
124
(4.89")
48 (1.89")
11 (0.43")
23 (0.91")
37
(1.46")
23 (0.91")
135
(5.31")
ENGLISH
1-3
Chapter 1 Specifications
SL-U2
24V DC
100 to
240 V AC
+
–
PE (GND)*
SL-U2
OC
+
-
N
L
CAUTION
100-240V AC
ONLY
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 and SL-R11 must completely
satisfy the following requirements in order to satisfy the requirements of UL61496-1 for the SL-C Series and
SL-R11.
(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 and/or SL-R11 and
(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
shall not be used to supply power to other devices.
Circuit as prescribed by UL508. (This requirement applies only when the SL-C is to be used in North
America.)
electromagnetic compatibility (EMC), etc., for the country or region in which the SL-C Series and/or SLR11 will be used.
1-4-2 Recommended Dedicated Power Supply Unit
The SL-U2 is offered as the SL-C Series dedicated power supply. The SL-U2 is a power supply that
completely satisfies the above requirements.
<Approved standards>
Standard
EN60950-1
Safety EN50178
standard UL60950-1 (R/C)
UL508 (Listing)
EN55011 Class A
EMC standard EN61000-6-2
FCC Part 15B Class A
ENGLISH
English
(*) The PE terminal is a protective conductor terminal that must be connected to a protective earthing
conductor in the building installation.
1-4
<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
Supply voltage interruption
Weight (excluding dedicated brackets)
WARNING
Ambient temperature
Relative humidity
For the power supply used for the SL-C Series and SL-R11, 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 and SL-R11 may not be recognized as a safety component.
SL-U2
Switching type
AC 100 to 240 V ±10 % (50/60 Hz)
II
DC 24 V ±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
AC 1,500 V, 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 MΩ (DC 500 V mega, between all external terminals and case)
135VA
10 ms or less
Approx. 240 g
1
1-5
ENGLISH
1
Chapter 1 Specifications
MEMO
ENGLISH
English
1-6
Chapter 2 Functions
ON
OFF
ON
OFF
Start/restart input
FSD
35ms Max.
ON
FSD
ON
OFF
OFF
20ms Max.
35ms Max.
Start/restart input
E-STOP input
2 Functions
2-1 Start Interlock
This function keeps the FSD turned off when the power to the SL-R11 is turned on. At this time, the FSD will
not turn on even when the SL-C Series connected to the SL-R11 is clear of any obstruction in the detection
zone. In order to cancel the start interlock status (in other words, to turn the FSD ON to allow the machine to
start), the start/restart input must be input when there are no obstacles in the detection zone. This will cause
the FSD to turn on, allowing the cancellation of the start interlock status.
Using this function prevents the machine from being automatically started when the power is turned on, or
when the start switch, etc., is pressed after safety has been confirmed.
➮
For details, See page 4-4 “4-3-1 Wiring to Start/Restart Input Terminals”.
2-2 Restart Interlock
The FSD turns off when an obstacle interrupts the detection zone, and this function keeps the FSD turned off
even after the obstacle is removed from the detection zone. In order to cancel the restart interlock status (in
other words, to turn the FSD ON to allow the machine to restart), the start/restart input must be input when
there are no obstacles in the detection zone. This will cause the FSD to turn on, allowing the cancellation of
the restart interlock status.
This function prevents the machine from automatically starting even when the obstacle detected by the SL-C
Series is removed from the detection zone, so after the safety check is completed, the machine can be
restarted by pressing the start switch, etc.
➮
For details, See page 4-4 “4-3-1 Wiring to Start/Restart Input Terminals”.
Start/restart input timing chart
2
2-3 E-STOP Input
E-STOP input refers to 2 normally closed signal inputs that are used to rapidly stop the machine when the
emergency stop switch or similar button is operated. The SL-R11 has a terminal (E-STOP1 and E-STOP2
input terminals) for receiving the input signal from the emergency stop switch (or similar button) operation, so
the machine can be emergency stopped via the SL-R11. SL-R11 requires the start/restart input in order to
return to the normal operation from an emergency stop state. That is why the SL-R11 requires the start/
restart input to cancel the interlock state in addition to the manual restart of E-STOP signal input.
This function not only makes emergency stopping possible when danger is detected by the SL-C, but can
also cause the FSD provided in the SL-R11 to be operated by E-STOP input from an emergency stop switch,
etc., so it can be used to make output systems uniform.
➮
For details, See page 4-5 “4-3-2 Wiring to E-STOP Input Terminals”.
E-STOP input
2-1
ENGLISH
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