光線式プレス機械及びシャー(紙断裁機)の安全装置 Safety Light Curtain for Press/Shearing Machines SL-CHG Series 取扱説明書 Instruction Manual KEYENCE CORPORA CORPORATION 1-3-14, Higashi-Nakajima, Higashi-Yodogawa-ku, Osaka, 533-8555, Japan PHONE: +81-6-6379-2211 FAX: +81-6-6379-2131 AFFILIATED COMPANIES KEYENCE CORPORATION OF AMERICA KEYENCE (MALAYSIA) SDN BHD PHONE: 03-252-2211 PHONE: 201-930-0100 FAX: 03-252-2131 FAX: 201-930-0099 KEYENCE DEUTSCHLAND GmbH PHONE: 06102-36 89-0 FAX: 06102-36 89-100 KEYENCE (THAILAND) CO., LTD.
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-CHG is Used ........................................................................................................
Safety Precautions This instruction manual describes handling, operation, and precautionary information for the Safety Light Curtain (“SL-CHG”) for press/shearing machines. Read this instruction manual thoroughly before operating the SL-CHG 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-CHG 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-CHG. • When performing electrical wiring, always follow electrical standards and regulations for the country or region in which the SL-CHG is being used.
■ Installation • The SL-CHG must be installed only after securing the minimum safety distance between the SL-CHG and the hazardous zone or hazard as established by the applicable regulations of the country or region in which the SL-CHG is being used. • Choose locations for the installation of SL-CHG 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-CHG Series and SL-R11G are “safety components” defined in the EU Machinery Directive (2006/42/EC) Annex V. The SL-CHG Series and SL-R11G comply with the following Directives and EN Standards, and have been certified by TÜV Product Service GmbH.
7. Package Contents Confirm that the package includes the main unit and the following accessories. ■ Accessories • Intermediate support bracket for installation *Two sets of supports are supplied with the SL-C36HG through to the SL-C64HG. Four sets of supports are supplied with the SL-C52HG through SL-C64HG. 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-CHG Series and optional units. For component locations and appearances, ➮ see the “1-4 Dimensional Drawings” (page 1-5). 1 1-1-1 Main System and Cables When using the SL-CHG stand-alone SL-C HG Transmitter Status indicator (on both sides) Dete ctio n zo ne SL-C HG Receiver SL-P7 (P) G (7 m (22.97 ft.)) cable for transmitter (gray) SL-P7 (P) G (7 m (22.
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-CHG. 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-CHG plug - bare wires SL-P7G (NPN Type 7m (22.97 ft.)) SL-P7PG (PNP Type 7m (22.97 ft.)) (Transmitter/receiver set) ø6 33 1 SL-CHG plug - M12 connector SL-PC5G (NPN 5m (16.4 ft.)) SL-PC5PG (PNP 5m (16.4 ft.)) SL-PC10PG (PNP 10m (32.81 ft.)) (Transmitter/receiver set) ø6 47 ø14 M12 connector - M12 connector SL-CC10G (NPN 10m (32.81 ft.)), SL-CC10PG (PNP 10m (32.81 ft.)), (Transmitter/receiver set) ø6 41.
Chapter 1 Overview and Specifications 1-3 Specifications SL-CHG specifications by model 1 Model No. of beam axes Beam axis interval Detection zone Current Transmitter consumpReceiver tion Transmitter Weight Receiver SL-C08HG SL-C12HG SL-C16HG SL-C20HG SL-C24HG 12 16 20 24 8 20 mm (0.79") 140 mm (5.51") 220 mm (8.66") 300 mm (11.81") 380 mm (14.96") 460 mm (18.11") 55 mA 58 mA 61 mA 62 mA 68 mA 67 mA 69 mA 71 mA 73 mA 76 mA Approx. 165 g Approx. 210 g Approx. 255 g Approx. 300 g Approx. 345 g Approx.
Chapter 1 Overview and Specifications 1-4 Dimensional Drawings With the E-to-E mounting bracket (OP-42370) installed (Unit:mm) 50.4 (1.98") 28 (1.1") (1.1") 27.9 26.4 (1.04") (1.04") 26.4 39.7 (1.56") 28 (1.1") (0.57") 14.6 (0.2") 5 3.5 (0.14") 1 (0.2") 5 D D (1.1") 28 28 (1.1") (0.04") 1 (1.52") (0.08") 38.5 (0.41") 10.5 (0.08) 2 3.5 (0.14") (0.04")1 (0.79")20 A B 38.5 14.5(0.57") (1.52") (0.08") 2 3.5 (0.14") A 20 (0.79") (0.12") 3 36 (1.42") (0.43") 11(0.12") 3 4 (0.16") (0.
Chapter 1 Overview and Specifications 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") 1 (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 (0.45") 27 12 (1.06") (0.24") 6 27.9 (1.1") (0.42")10.6 (0.47") (1.06")27 12 (0.3") 7.5 6 (0.24") 7.5 (0.3") (0.75") 19 29 (1.14") 5 (0.2") (0.77")(19.5) (0.31") (0.69") 17.
Chapter 1 Overview and Specifications L-shaped mounting bracket With the L-shaped mounting bracket installed 60(2.36") 52(2.05") 44(1.73") 30(1.18") 5.2 (0.2") 28 (1.1") 8(0.31") 20 (0.79") 28 (1.1") 20 17.5 (0.79") (0.69") 9(0.35") 5(0.2") 40(1.57") 26 (1.02") 5.2 (0.2") 60(2.36") 52(2.05") 44(1.73") 30(1.18") 26 (1.02") 16 25 (0.98") (0.63") 20(0.79") 1 8(0.31") 8 (0.31") .8 ) R1 .07" (0 23(0.91") 28(1.1") 16 (0.63") t=1.0 30(1.18") 44(1.73") 12 (0.47") 16 (0.63") 14 (0.55") 18 (0.
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-CHG control circuit detects an error, the SL-CHG goes to lockout condition and the status indicator turns orange.
Chapter 1 Overview and Specifications 1-5-2 Lockout Status Bar LED Indicator If the SL-CHG Series goes into a lockout condition, the lockout indicators on all SL-CHG 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-CHG 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 1 The SL-CHG 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-CHG and by the tag attached to the cable as follows.
Chapter 2 Installation and Assembly 2 Installation and Assembly 2-1 Detection Zone and Installation • To install the SL-CHG correctly, check the operating distance, detection zone of the SL-CHG to be used. [Detection zone by model] Detection zone: The zone where the SL-CHG detects the test piece when it partially enters 2 b a Detection zone c a: Beam axis interval (20 mm (0.79")) b: Beam axis width (5 mm (0.2") dia) c: Detection capability (25 mm (0.98") dia) Be sure to use the 25mm (0.
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-CHG 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-CHG detection zone. • While the machine is running, the machine operator's body always stays on the opposite side of the hazardous zone or hazard. Incorrect installation • The machine operator can access the hazardous zone or hazards without passing through the SL-CHG detection zone.
Chapter 2 Installation and Assembly 2-2 Safety Distances Install the SL-CHG after calculating and verifying the necessary safety distances. • Minimum safety distance The minimum safety distance refers to the minimum distance that the light curtain for press/shearing machines 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 Structural Standards for Power Press Machinery (Japan only) 1. The safety distance formula (reference) The safety distance formula described in the “Structural Standards for Power Press Machinery” (Japanese Ministry of Health, Labor, and Welfare Notification No. 116, issued December 26, 1977) based on the provisions of Article 42 of the Industrial Safety and Health Law is noted below for your reference.
Chapter 2 Installation and Assembly The transmitter/receiver pair installed to directly protect the length (zone) achieved by adding the press machinery's stroke length and the amount the slide can be adjusted is called the “primary beam axis”, while transmitters and receivers installed for other purposes are called the “supplementary beam axes”.
Chapter 2 Installation and Assembly 2-2-3 EN999 (ISO13855) Formula: S = K x T + C.....
Chapter 2 Installation and Assembly 2-2-4 ANSI B11.19-2003 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-CHG. • 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 2-3-2 Fixing the Mounting Brackets WARNING 2 The installation holes for screws on mounting brackets for the SL-CHG are slotshaped so that they are larger than the actual screw size with which they are intended to be used. This additional space can be used to adjust the position in which the device is installed.
Chapter 2 Installation and Assembly 2. E-to-E mounting bracket (OP-42370) assembly and tightenig methods 1. Mount bracket A on the SL-CHG (Use a recommended tightening torque of 0.7 N•m). 2. Fix bracket B to bracket A using two screws (Use a recommended tightening torque of 0.7 N•m). 3. At the opposite side of bracket A from the side where bracket B is mounted, slide in bracket C, determine its angle, and fix it using a screw (Use a recommended tightening torque of 0.7 N•m).
Chapter 2 Installation and Assembly 2-3-3 Protection Bar Installation This section describes the procedure used to install the protection bar. 1. Part names • Bar 1 bar • Bar bracket A 2 • Intermediate support bracket • Bar support bracket 2 brackets • Screws M3 X L7 6 screws M3 X L10 6 screws 2 brackets for the 28 beam axis type (SL-C28HG) only Bolt with hexagon socket (Diagonally: 5mm (0.
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 (L=7) screws to attach the bar brackets to the SL-CHG unit. Make sure the bar is not skewed. 6. Use M3 (L=7) 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-CHG, the SL-CHG Series may not operate correctly and it may not detect an object approaching the SL-CHG detection zone. To avoid such a problem, check the following during an SL-CHG 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 SL-CHG units without using the light interference prevention cables prescrided in this instruction manual.
Chapter 2 Installation and Assembly MEMO 2 English ENGLISH 2-16
Chapter 3 Wiring 3 Wiring 3-1 Wiring Methods This section explains how to wire the SL-CHG Series components. WARNING 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-CHG dedicated power supply. The SL-U2 is a power supply that completely satisfies the above requirements. Standard No.
Chapter 3 Wiring 3-3 When Only the SL-CHG is Used For PNP output & , " + & ' () * % & ' () % Light interference prevention cable (output /+) (gray)* ! Light interference prevention cable (output /-) (gray/black)* # # $ % $ % " ! Light interference prevention cable (input /+) (gray)* Light interference prevention cable (input
Chapter 3 Wiring 3-4 For SL-PC Cable (main unit plug - M12 connector) 1. Cable length 3. M12 connector 5 6 4 8 7 1 Main unit connector 2. Cable 3 2 3. 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 SL-CHG units and prevents light interference in the respective SL-CHG units. This connection method is called a light interference prevention connection. (See the figure below.) In this case, each of the parallel-connected SL-CHG 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-CHG 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 PNP PNP output circuit Transmitter Light interference prevention cable input " % # $ " % - & ' ! Receiver Orange Light interference prevention cable output ! & ' ! " ( ) Ω OSSD (PNP) Max.
Chapter 3 Wiring • Waveforms of control outputs The SL-CHG 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-CHG and, if the OFF state signal is fed back, the SL-CHG determines that the output circuit operates normally.
Chapter 4 Checklist 4 Checklist 4-1 Post-Installation Itemized Checklist When the installation of the SL-CHG is complete, the responsible personnel shall verify the SL-CHG’s operation in accordance with the checklist shown below. The checklist below covers the minimum items required for using the SL-CHG. The check items required may vary depending on the machine installed for the SL-CHG and the regulations for the country or region in which the SL-CHG will be used.
Chapter 4 Checklist 3. Check Using an Operation Test with the Machine Stopped With the machine stopped, turn on the power of the SL-CHG 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 5. Test Results Confirmation ❏ If the SL-CHG or the machine to which the SL-CHG 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-CHG does not function as described in the test procedure, do not attempt to operate the machine to which the SL-CHG has been installed.
Chapter 4 Checklist ❏ The test piece can be detected regardless of its location as long as it is in the detection zone. ❏ If the SL-R11G restart interlock function is enabled, when the test piece is removed, confirm that ❏ ❏ ❏ the bar LEDs on the SL-CHG light up green, the output status indicator lights up red, and the SLR11G interlock indicator lights up yellow.
Chapter 4 Checklist 4-2-2 Regular Inspection The responsible personnel must perform a regular inspection at least once every six months. For the regular inspection, add the following checklist to the checklist given in 4-2-1 “Inspection Prior to Daily Operation” (➮ page 4-3). Note that the checklist below covers the minimum test items required in using the SL-CHG Series.
Chapter 5 Troubleshooting 5 Troubleshooting LOCKOUT 8 When either the Safety Light Curtain SL-CHG or the Intelligent Safety Relay Unit SLR11G 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-CHG. 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-CHG has its transmitter and receiver ends reversed. Connect the cable properly as described in section 2-4-1 “Connecting Cable Installation” (➮2-9) in the SL-CHG 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-CHG manual.
Chapter 6 Appendix 6 Appendix 6-1 Glossary (1) ESPE (Electro-Sensitive Protective Equipment) This is an assembly of devices and/or components working together for protective tripping or presence-sensing purposes and comprising as a minimum a sensing device, controlling/monitoring devices and OSSD.
Chapter 7 Revision History 7 Revision History First Edition Second Edition Third Edition Fourth Edition Nov. 2003 Dec. 2003 Oct. 2004 Feb.
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.
1282E 1031-4 96M1282 Printed in Japan