96M13267 Safety Light Curtain SL-CHS Series Instruction Manual NOTICE Do not attempt to operate or service this light curtain or product until you have read and understood the instructions written in this manual.
Contents Safety Precautions 1. 2. 3. 4. 5. 6. 7. 1 Safety Headings ........................................................................................................................................ iii General Precautions ................................................................................................................................. iii Warning ............................................................................................................................................
3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 4 Wiring Wiring Methods .................................................................................................................................. Power Requirements .......................................................................................................................... When Only the SL-CHS is Used ........................................................................................................
Safety Precautions This instruction manual describes handling, operation, and precautionary information for the Safety Light Curtain (“SL-CHS”). Read this instruction manual thoroughly before operating the SL-CHS in order to understand the 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.
3. Warning ■ Operators • In order for the SL-CHS 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-CHS. • When performing electrical wiring, always follow electrical standards and regulations for the country or region in which the SL-CHS is being used.
■ Installation • The SL-CHS must be installed only after securing the minimum safety distance between the SL-CHS and the hazardous zone or hazard as established by the applicable regulations of the country or region in which the SL-CHS is being used. • Choose locations for the installation of SL-CHS transmitters and receivers so that they are not subject to the effects of light reflected from glossy surfaces in the area. • Use the same models (same beam axis) for transmitter/receiver pairs.
6. About Standards and Regulations 1) The SL-CHS Series and SL-R11(E) 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-CHS Series and SL-R11(E) have not received the model certification examination in accordance with Article 44-2 of the Japanese Industrial Safety and Health Law.
7. Package Contents Confirm that the package includes the main unit and the following accessories. ■ Accessories • Intermediate support bracket for installation * Two pieces of supports are supplied with models SL-C36HS through SL-C48HS. Four pieces of supports are supplied with models SL-C52HS through SL-C64HS. Intermediate support bracket A Intermediate support bracket B * Two connectors are also available grouped as a set (OP-42373).
Chapter 1 Overview and Specifications 1 Overview and Specifications 1-1 Component Names and Units This section describes each part of the SL-CHS Series and optional units. For component locations and appearances, ➮ see the “1-4 Dimensional Drawings” (page 1-7). 1 1-1-1 Main System and Cables When using the SL-CHS stand-alone T: Transmitter R: Receiver SL-CHS Series Transmitter Status indicator (on both sides) Dete ctio n zo ne SL-CHS Series Receiver SL-P7N/P (7 m (22.97 ft.
Chapter 1 Overview and Specifications 1-2 Mounting Brackets and Cables This section offers an explanation of safety light curtain mounting brackets and cables. Mounting brackets and cables are optional equipment for the SL-CHS. 1 1-2-1 Mounting Brackets Normal mounting bracket A OP-42347 (1 set of 2 brackets) Normal mounting bracket B OP-42348 (1 set of 2 brackets) Normal mounting bracket C OP-42349 (1 set of 2 brackets) Includes 6 M3 screws (R=7). Includes 6 M3 screws (R=7).
Chapter 1 Overview and Specifications 1-2-2 Cables SL-CHS plug - bare wires SL-P7N (NPN Type 7 m (22.97 ft.)) SL-P15N (NPN Type 15 m (49.21 ft.)) SL-P7P (PNP Type 7 m (22.97 ft.)) ø6 34 (1.34") SL-CHS plug - M12 connector 1 (Transmitter/receiver set) SL-PC5N (NPN 5 m (16.4 ft.)) SL-PC5P (PNP 5 m (16.4 ft.)) SL-PC10P (PNP 10 m (32.81 ft.)) (Transmitter/receiver set) ø6 47 ø14 M12 connector - M12 connector SL-CHSC10NT (NPN 10 m (32.81 ft.) Transmitter), SL-CHSC10NR (NPN 10 m (32.81 ft.
Chapter 1 Overview and Specifications 1-3 Specifications Specifications (Detection capability of 25 mm (0.98") diameter type) 1 Model No. of beam axes Detection capability Beam Axis Pitch/Lens Diameter Detection zone Protection zone Current Transmitter consumpReceiver tion Transmitter Weight Receiver SL-C08HS SL-C12HS SL-C16HS SL-C20HS SL-C24HS SL-C28HS SL-C32HS 8 12 16 20 24 28 32 ø25 mm (0.98") (when the blanking function is not used) 20 mm (0.79") / ø5 mm (0.19") 140 mm (5.51") 220 mm (8.
Chapter 1 Overview and Specifications Common specifications Model SL-CHS Series 0.3 to 9 m SL-C**HS Operating distance Max. ±2.5° (When operating distance is 3 m (9.84 ft.
Chapter 1 Overview and Specifications 1-4 Dimensional Drawings With the E-to-E mounting bracket ( OP-42370 ) installed 1 ( Unit: mm ) 39.7 28 50.4 28 27.9 26.4 26.4 17.5 17.5 5 5 D D 28 1 3.5 14.6 28 38.5 1 10.5 3.5 2 38.5 14.5 2 3.5 20 A B 20 3 36 11 3 3 36 15 4 3 28 A B 4 C 28 C 50.4 D D 5 10.6 17.5 3-M3 Depth:4.5 5 10.6 4.5 12 17.5 14 8 17.5 15.
Chapter 1 Overview and Specifications E-to-E mounting bracket ( OP-42370 ) (24) 50 3 3 1.5 Intermediate support brackets ( OP-42373 ) (50.4) 49 4 36 (21.2) 2 1 2.5 3.5 38.5 1 5 4.5 28 36 20 28 Normal mounting bracket A, outward-facing (OP-42347) With Normal mounting bracket A installed 29 (1.14") 18 (0.71") 27.5 (1.08") 21(0.83") 5 (0.2") (0.31") 8 2(0.08") 19 (0.75") 22 (0.87") (46.5) (1.83") 12 (0.47") (0.42")10.6 5 (0.2") (19.5)(0.77") (0.47") 7.5 (0.3") 11.5 (0.
Chapter 1 Overview and Specifications Normal mounting bracket B (OP-42348) With Normal mounting bracket B installed 29 (1.14") 18 (0.71") 1 (62.5) (2.46") 14.5 (0.57") 10.6 (0.42") 5 (0.2") 7.5 (0.3") 14.5 (0.57") 5 (0.2") (0.72") (18.5) 14.5 (0.57") 7.5 (0.3") 2 (0.08") (0.42")10.6 (18.5)(0.72") 14.5 (0.57") 7.5 (0.3") (0.24") 6 7.5 (0.3") 14.5 (0.57") 19 (0.75") 14.5 (0.57") 7.5 (0.3") (0.24") 6 27.9 (1.1") 7.5 (0.3") (0.24")6 19 (0.75") 29 (1.14") (0.31") 19 (0.75") 29 (1.
Chapter 1 Overview and Specifications Thin type mounting backet (OP-51698) With thin mounting bracket installed 1 (30.9) (32.4) 28 2 1.1 1.1 22 5 5 5 5 10.6 (6.8) (10.2) 22 (32.4) 10.6 1.1 (6.8) 5 22 (6.8) 17.5 28 31.5 * When installing the normal mounting bracket on the machine, use the M4 screws shorter than 3.8 (0.15") mm. 8 5 L-shaped mounting bracket (OP-42371) With the L-shaped mounting bracket installed 60(2.36") 52(2.05") 44(1.73") 30(1.18") 5.2 (0.2") 8(0.31") 28 (1.
Chapter 1 Overview and Specifications With the protection bar installed Example standard mounting bracket installation Bracket A M6 hexagonal bolt (5mm (0.2") diagonal) M3 (R=7) Bar 1 Bar support 15 (0.59") 15 (0.59") Intermediate support bracket C C B 15(0.59") B 15(0.59") D A A 5 (0.2") 16(0.63") 16(0.63") (48.5) (1.91") This installation uses M3 (r=7) screws in the locations marked with . With the protection bar installed 60(2.
Chapter 1 Overview and Specifications 1-5 Functions 1-5-1 Status Indicator 1 LOCKOUT 8 7 6 5 4 3 2 1 ON/OFF FUNCTION 1. Lockout indicator (orange) 2. Bar LED (green / red) 3. Output status indicator (green / red) 4. Function indicator (orange) 1. Lockout indicator If the SL-CHS control circuit detects an error, the SL-CHS goes to lockout condition and the status indicator turns orange.
Chapter 1 Overview and Specifications 1-5-2 Lockout Status Bar LED Indicator 1 If the SL-CHS Series goes into a lockout condition, the lockout indicators on all SL-CHS Series units connected in series (➮see “Series connection” (page 3-4) for more information about in-series connection) turn ON. Also, part of the 8-segment bar LEDs in the SL-CHS begins to flash, and the operator can see in what part the trouble occurred by checking the LED flashing status in the following table.
Chapter 1 Overview and Specifications 1-5-4 NPN and PNP Outputs The SL-CHS has two types of OSSD outputs: PNP output and NPN output. KEYENCE has a PNP output cable and a NPN output cable for use as dedicated OSSD output cables, The OSSD output type can be switched by selecting one of these cables. These cables are identified by the color of the connector connected to the SL-CHS and by the tag attached to the cable as follows.
Chapter 1 Overview and Specifications MEMO 1 English ENGLISH 1-14
Chapter 2 Installation and Assembly 2 Installation and Assembly 2-1 Detection Zone and Installation • To install the SL-CHS correctly, check the operating distance, detection zone and protection zone of the SL-CHS to be used. [Detection zone by model] Detection zone: The zone where the SL-CHS detects the test piece when it partially enters Protection zone: The zone where the SL-CHS Series detects the test piece when it enters entirely.
Chapter 2 Installation and Assembly (Unit: mm) axis Beam Detection Detection Protection Model Beam interval axis capability Length zone zone SL-C08HS 150 (5.91") 140 (5.51") 185 (7.28") SL-C12HS 230 (9.06") 220 (8.66") 265 (10.43") SL-C16HS 310 (12.20") 300 (11.81") 345 (13.58") SL-C20HS 390 (15.35") 380 (14.96") 425 (16.73") SL-C24HS 470 (18.50") 460 (18.11") 505 (19.88") SL-C28HS 550 (21.65") 540 (21.26") 585 (23.03") SL-C32HS 2 SL-C36HS 20 (0.79") SL-C40HS SL-C44HS 630 (24.8") 620 (24.
Chapter 2 Installation and Assembly 2-1-1 Mounting Direction and Position Direction of transmitter and receiver: (1) Install so that the projection surface of the transmitter and the receiving surface of the light receiver are parallel when they face each other. (2) Install the SL-CHS so that the indicators on each transmitter and receiver face one another and are located at the same height.
Chapter 2 Installation and Assembly Mounting position of transmitter and receiver: Correct position • The hazardous zone or hazards within the machine are accessible only through the SL-CHS detection zone. • While the machine is running, the machine operator's body always stays on the opposite side of the hazardous zone or hazard. 2 Incorrect installation • The machine operator can access the hazardous zone or hazards without passing through the SL-CHS detection zone.
Chapter 2 Installation and Assembly 2-2 Safety Distances Install the SL-CHS after calculating and verifying the necessary safety distances. • Minimum safety distance The minimum safety distance refers to the minimum distance that the light curtain must be separated from the hazardous zone or hazard in order to stop the machine before people or objects can reach the hazardous zone or hazard.
Chapter 2 Installation and Assembly 2-2-1 ISO13855 Formula: S = K x T + C.....
Chapter 2 Installation and Assembly 2-2-2 ANSI B11.19-2010 Equation: Ds=K x T + Dpf Ds: Safety Distance (inch) K: The maximum speed that an individual can approach the hazard T: The total time that it takes for the hazardous motion to stop, or for the hazardous portion of the machine cycle to be completed.
Chapter 2 Installation and Assembly 2-3 Mounting Procedure 2-3-1 Connecting Cable Installation This section explains how to install the connecting cables to the SL-CHS. • Connect the transmitter cable (having the grey shield) to the transmitter cable connecter as shown below. Similarly, connect the receiver cable (having the Black cable shield) to the receiver cable connector. (Recommended tightening torque is 0.5N•m) Use two screws to secure the cable connector.
Chapter 2 Installation and Assembly 2. Thin type mounting bracket A (OP-51698) tightenig methods Secure the mounting bracket using three screws as shown below. M3 (r=7) 1 2 The sensor can be rotated to the left and right when these 2 screws (M3:R=2.5) are loosened, allowing adjustment of the beam axis. (Use a recommended tightening torque of 1 N•m for these screws.) 3. 2 E-to-E mounting bracket (OP-42370) assembly and tightenig methods 1. Mount bracket A on the SL-CHS. 2.
Chapter 2 Installation and Assembly 5. Intermediate support bracket (OP-42373) mounting method To prevent a malfunction of SL-CS32HS to SL-CS64HS due to vibration, mount an intermediate support bracket in one or two intermediate positions as appropriate. Mount the bracket correctly by following the instructions below. For information regarding the mounting position, ➮ see the “1-4 Dimensional Drawings” (page 1-5). 1. Mount the intermediate support bracket A on the SL-CHS. 2.
Chapter 2 Installation and Assembly 2-3-3 Protection Bar Installation This section describes the procedure used to install the protection bar. (The protect bar cannot be used combined with and thin type mounting bracket (OP-51698).) 1.
Chapter 2 Installation and Assembly 3. Tighten the bolt with the hexagon socket enough to hold them in place. 4. Tighten the bolts with the hexagon sockets with a mounting torque of 7 N•m while holding the beveled area at the end of the bar (10 mm (0.39") diagonally) in place with a wrench. 5. Then use M3 (r=7) screws to attach the bar brackets to the SL-CHS unit. Make sure the bar is not skewed. 6. Use M3 (r=10) screws with standard mounting brackets A, B, and C, as well as with L-shaped mounting brackets.
Chapter 2 Installation and Assembly 2-3-4 Installation Distance from Glossy Surfaces • Installation Distance Not Affected by Glossy Surface If the ambient light is reflected by glossy surfaces around the SL-CHS, the SL-CHS Series may not operate correctly and it may not detect an object approaching the SL-CHS detection zone. To avoid such a problem, check the following during an SL-CHS installation. Dangerous Safe A=3.0 ° A=3.
Chapter 2 Installation and Assembly 2-3-5 Light Interference Prevention Method This section explains how to install multiple units of the SL-CHS Series units without using the light interference prevention cables prescrided in this instruction manual.
Chapter 3 Wiring 3 Wiring 3-1 Wiring Methods This section explains how to wire the SL-CHS Series components. WARNING • When using the PNP output, do not short-circuit the control output cable (OSSD) to +24V. Otherwise, the output will always remain ON, which is dangerous. • When using the NPN output, do not short-circuit the control output cable (OSSD) to 0V. Otherwise, the output will always remain ON, which is dangerous.
Chapter 3 Wiring 2. Recommended Dedicated Power Supply Unit The SL-U2 is offered as the SL-CHS dedicated power supply. The SL-U2 is a power supply that completely satisfies the above requirements. Standard No. Safety UL60950 (R/C) standard UL508 (Listing) EN55011 Class A EMC standard EN61000-6-2 FCC Part 15B Class A 3 (*)The PE terminal is a protective conductor terminal that must be connected to a protective earthing conductor in the building.
Chapter 3 Wiring 3-3 When Only the SL-CHS is Used For PNP output Receiver Transmitter SL-P∗P cable for Transmitter/gray SL-P∗P cable for Receiver/black RS-485(A) orange RS-485(B) orange/black Light interference prevention cable (output /+) (gray)* FSD1 Light interference prevention cable (output /-) (gray/black)* Shield 0 V (Blue) OSSD2 (white) OSSD1 (black) +24 V (brown) +24 V (brown) Test input (purple)* Main/sub switching input (pink)* 0 V (blue) Shield Light interference prevention cab
Chapter 3 Wiring 3-4 For SL-PC Cable (main unit plug - M12 connector) 1. Cable length M12 connector 5 6 4 8 7 1 Main unit connector 3 2. Cable 3 2 M12 connector Terminal No. Transmitter Receiver of connector 1 Main/sub select input OSSD2 2 +24 V +24 V 3 Test input OSSD1 4 Light interference prevention input (+) Light interference prevention output (+) 5 RS-485 (A) RS-485 (A) 6 RS-485 (B) RS-485 (B) 7 0V 0V 8 Light interference prevention input (–) Light interference prevention output (–) 1.
Chapter 3 Wiring 3-6 Connection for Light Interference Prevention (Parallel Connection) As shown in the figure below, using the light interference prevention function allows the parallel connection of 2 or more sets of the SL-CHS Series and prevents light interference in the respective the unit of the SL-CHS Series. This connection method is called a light interference prevention connection. (See the figure below.) In this case, each of the parallel-connected SL-CHS units operates independently.
Chapter 3 Wiring 3-7 Series Connectin and Light Interference Prevention Connection (Parallel Connection) The series and parallel light interference prevention connection can be combined as shown below. This function is valid if the number of SL-CHS in a series connection and connected via a light interference prevention cable is 12 or less, and if the total number of beam axes is 192 or less.
Chapter 3 Wiring 3-8 I/O Circuits Light interference prevention cable input Ω OSSD (PNP) Max. load 300 mA Orange 3 OSSD (PNP) OSSD (NPN) Orange/Black OSSD (PNP) Light interference prevention cable output OSSD (NPN) White Gray/Black * When test input will not be used, connect it to 0 V. If it is left disconnected, light transmission will stop. When not using the light interference prevention connection, connect the main/sub switching input to 0 V.
Chapter 3 Wiring • Waveforms of control outputs The SL-CHS performs a self-diagnosis test for the output circuit when all beam axes are clear of any obstruction and the OSSD is in an ON-state. This self-diagnosis function periodically turns OFF the OSSD output. The OSSD output is monitored by the SL-CHS and, if the OFF state signal is fed back, the SL-CHS determines that the output circuit operates normally.
Chapter 4 Checklist 4 Checklist 4-1 Post-Installation Itemized Checklist When the installation of the SL-CHS is complete, the responsible personnel shall verify the operation of the SL-CHS Series in accordance with the checklist shown below. The checklist below covers the minimum items required for using the SL-CHS. The check items required may vary depending on the machine installed for the SL-CHS and the regulations for the country or region in which the SL-CHS will be used.
Chapter 4 Checklist ❏ If 2 or more sets of the SL-CHS Series are used - a series connection or light interference prevention connection is used to prevent light interference. See “3-6 Connection for Light Interference Prevention” (➮ page 3-5) and take measures to prevent light interference among each SL-CHS units. 3.
Chapter 4 Checklist 5. Test Results Confirmation ❏ If the SL-CHS or the machine to which the SL-CHS has been installed fails any part of the above test, operation should be ceased until satisfactory test results are obtained. ❏ A record of the test results must be maintained. WARNING If the SL-CHS does not function as described in the test procedure, do not attempt to operate the machine to which the SL-CHS has been installed.
Chapter 4 Checklist 2. Check Using an Operation Test with the Machine Stopped With the machine stopped, turn on the power of the SL-CHS and carry out the following tests using the test piece included in the package. If the floating blanking function is active, do not use the attached test piece, but use a proper test piece that conforms to the description given in the SL-R12EX manual.
Chapter 4 Checklist 4. Test Results Confirmation ❏ If the SL-CHS or the machine to which the SL-CHS has been installed fails any part of the above test, operation should be ceased until satisfactory test results are obtained. ❏ A record of the test results must be maintained. WARNING If the SL-CHS does not function as described in the test procedure, do not attempt to operate the machine to which the SL-CHS has been installed.
Chapter 5 Troubleshooting 5 Troubleshooting LOCKOUT 1. Lockout indicator 8 When either the Safety Light Curtain SL-CHS or the Intelligent Safety Relay Unit SLR11(E) experiences an error, it is possible to determine the cause of the error by referring to the state of the bar LED display on the SL-CHS. When the lock-out indicator (orange) is flashing, the device can be returned to normal operation by turning it off and then on again once the cause of the problem has been rectified.
Chapter 5 Troubleshooting Bar LED display status Transmitter Receiver Description Causes and solutions • The cable connected to the SL-CHS has its transmitter and receiver ends reversed. Connect the cable properly as described in section 2-3-1 “Connecting Cable Installation” (➮2-8) in the SL-CHS manual. • The OSSD is shorted with the power supply’s 0 V or 24 V leads, or 2 OSSDs are shorted. Wire the system properly as described in section 3-1 “Wiring” (➮3-1) in the SL-CHS manual.
Chapter 6 Revision History 6 Revision History First Edition Second Edition Revised 1st Edition 6 English ENGLISH 6-2 6-1 Nov. 2005 Feb. 2011 Nov.
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.
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