SF2-EH48

SF2-EH Robust Light Curtain Product is discontinued Successor SF4B SERIES Type 4 Passes global safety standards! Global safety The SF2-EH series complies with the IEC 61496-1/2 international standards, so that it can be used in different countries throughout the world. • CE marking based on Machine Directive and EMC Directive has been obtained. [Type 4 based on IEC 61496-1/2, EN 61496-1, and Control Category 4 based on EN 954-1] • C-UL US listings (UL 61496-1/2) which are required for use in the United States and Canada have been obtained. • This series is also compatible with equipment conforming to OSHA (1910.212/217), ANSI (B11.1lB11.20) and ANSI / RIA 15.06 regulations. Pursuit of safety It uses two independent CPUs, which mutually check the safety conditions. High reliability fail-safe design is realized by incorporating dual circuits for signal processing and output. • • Further, in order to ensure safety, FMEA (Failure Mode & • • Effects Analysis) has been used to prove safe operation. 422 08/2005 Safety design of the SF2-EH series The sensor unit continually performs self-checking on its internal circuitry, its cable integrity and even checks for interference from extraneous light. In the event of any fault or malfunction, the sensor outputs the same signal (OFF signal) as is produced during actual beam detection operation. SF2-EH Exclusive controller not required Wide area: 1,580 mm
10 m 62.205 in
32.808 ft Since an exclusive controller is not required, there is no need to provide space for it. Further, the PNP output equivalent type can be combined with an optional safety relay unit (SF-AC) to create an intrusion detection system. It realizes a wide sensing area with a protective height of 1,580 mm 62.205 in max. (80 beam channels) and a long operating range of 10 m 32.808 ft. Just one sensor can cover an area where previously 2 sensors had to be used. Sensors connectable in series Wide variety Using the optional cable (SF2-CSL) for series connection, maximum 4 sets of sensors with a total of 192 beam channels can be connected in series. For example, in case of mounting the sensors on the front, as well as, both the sides of a danger region, previously separate wiring was required for 3 sets of sensors. But now, wiring equivalent to that for only 1 set is required, thus saving troublesome wiring and cost. There are 13 models of sensors having a protective height ranging from 220 mm 8.661 in to 1,580 mm 62.205 in (12 to 80 beam channels). The sensors can be selected to suit the monitoring area of the used equipment. Further, PNP output equivalent type, as well as, NPN output equivalent type are available. No interference • Up to 12 sets of sensors can be mounted close together • In case of series connection or parallel connection, interference can be prevented for up to 4 sets, respectively. Further, in case of series and parallel mixed connection, up to 12 sets (total 192 beam channels) can be mounted close together. • Effective aperture angle 2.5  or less • Since the effective aperture angle is narrow ( 2.5  or less), it reduces the effect of reflection from walls, etc., and interference from extraneous light. • Convenient slit mask available • By using the optional slit mask (OS-SF2-H), the amount of beam emitted or received can be restrained to reduce the effect of extraneous light from other sensors, etc. Easy maintenance Solid aluminum case Mounting bracket enables easy beam alignment An optional front protection cover (FC-SF2-H) is available, so that the sensing face of the sensor can be protected in an adverse environment. All models have a solid aluminum case with a thickness of 3 mm 0.118 in. This case is much stronger than previous cases, so that the sensors can be used with even greater confidence. The beam alignment is easy since angle adjustment is possible with the sensor mounting bracket (MS-SF2-1). 08/2005 423 SF2-EH APPLICATIONS Guarding space around working robot Safeguard for press machine Safeguard for special purpose machine SF2-EH80 SF2-EH80 ORDER GUIDE Sensors Mating cable is not supplied with the sensor. Please order it separately. Model No. Number of Protective PNP output equivalent type NPN output equivalent type beam channels height (mm in) Operating range Appearance 0.3 to 10 m 0.984 to 32.808 ft SF2-EH12 SF2-EH12-N 12 220 SF2-EH16 SF2-EH16-N 16 300 11.811 SF2-EH20 SF2-EH20-N 20 380 14.961 SF2-EH24 SF2-EH24-N 24 460 18.110 SF2-EH28 SF2-EH28-N 28 540 21.260 SF2-EH32 SF2-EH32-N 32 620 24.409 SF2-EH36 SF2-EH36-N 36 700 27.559 SF2-EH40 SF2-EH40-N 40 780 30.709 SF2-EH48 SF2-EH48-N 48 940 37.008 SF2-EH56 SF2-EH56-N 56 1,100 43.307 SF2-EH64 SF2-EH64-N 64 1,260 49.606 SF2-EH72 SF2-EH72-N 72 1,420 55.905 SF2-EH80 SF2-EH80-N 80 1,580 62.205 8.661 Mating cables Mating cable is not supplied with the sensor. Please order it separately. Type Appearance Model No. SF2-CC3 Cable with connector on one end SF2-CC7 SF2-CC10 Cable with connector on both ends Length: 3 m 9.843 ft Weight: 410 g approx. (two cables) 8-core shielded cable, with connector on one end, two cables per set • Cable outer diameter: "6 mm "0.236 in Length: 7 m 22.966 ft • Connector outer diameter: "14 mm "0.551 in max. Weight : 890 g approx. (two cables) • Cable color: Gray (for emitter) Gray with black line (for receiver) • Connecter color: Gray (for emitter) Length : 10 m 32.808 ft Black (for receiver) Weight: 1.2 kg approx. (two cables) SF2-CCJ10 Length: 10 m 32.808 ft Weight: 1.2 kg approx. (two cables) SF2-CSL02 Length: 200 mm 7.874 in Weight: 150 g approx. (two cables) Cable for series connection SF2-CSL05 424 Description 8-core shielded cable, with connector on both ends, two cables per set • Cable outer diameter: "6 mm "0.236 in • Connector outer diameter: "14 mm "0.551 in max. • Cable color: Gray (for emitter) Gray with black line (for receiver) • Connecter color: Gray (for emitter) Black (for receiver) It can connect two sensors in series. 8-core shielded cable, two cables per set • Cable outer diameter: "6 mm "0.236 in Length: 500 mm 19.685 in • Connector outer dimensions: 35 mm 1.378 in max. Weight: 170 g approx. (two cables) • Cable color: Gray (for emitter and receiver) 08/2005 SF2-EH ORDER GUIDE Safety relay unit Appearance Type ( Description Safety relay unit for PNP output type • Complies with Control Categories up to 4 based on EN 954-1 SF-AC (Note) ( Safety relay unit For PNP output type light curtain Model No. Note: Refer to p.500l for further details. Spare parts (Accessories for sensor) Designation Model No. Description Sensor mounting bracket MS-SF2-1 One set of two brackets for both the emitter and the receiver Intermediate supporting bracket MS-SF2-2 One set of two brackets for both the emitter and the receiver Test rod SF2-EH-TR Sensing object ("30 mm "1.181 in) for daily check Sensor mounting bracket Intermediate supporting bracket Four bracket set Eight M4 (length 10 mm 0.394 in) hexagon-socket-head bolts with washers. Set of 2 pcs. each of U-shaped intermediate supporting bracket and L-shaped intermediate supporting bracket Two M4 (length 6 mm 0.236 in) hexagon-socket-head bolts, two M4 (length 10 mm 0.394 in) hexagon-socket-head bolts with washers, two nuts and two plain washers are attached. OPTIONS Applicable beam channels For 12 beam For 16 beam For 20 beam For 24 beam For 28 beam For 32 beam For 36 beam For 40 beam For 48 beam For 56 beam For 64 beam For 72 beam For 80 beam channels channels channels channels channels channels channels channels channels channels channels channels channels Designation Front Model protection FC-SF2-H12 FC-SF2-H16 FC-SF2-H20 FC-SF2-H24 FC-SF2-H28 FC-SF2-H32 FC-SF2-H36 FC-SF2-H40 FC-SF2-H48 FC-SF2-H56 FC-SF2-H64 FC-SF2-H72 FC-SF2-H80 No. cover Slit mask Model OS-SF2-H12 OS-SF2-H16 OS-SF2-H20 OS-SF2-H24 OS-SF2-H28 OS-SF2-H32 OS-SF2-H36 OS-SF2-H40 OS-SF2-H48 OS-SF2-H56 OS-SF2-H64 OS-SF2-H72 OS-SF2-H80 No. Front Model protection MC-SF2EH-12 MC-SF2EH-16 MC-SF2EH-20 MC-SF2EH-24 MC-SF2EH-28 MC-SF2EH-32 MC-SF2EH-36 MC-SF2EH-40 MC-SF2EH-48 MC-SF2EH-56 MC-SF2EH-64 MC-SF2EH-72 MC-SF2EH-80 No. bracket Note: The model Nos. given above denote a single unit, not a pair of units. Front protection cover Slit mask Front protection bracket Laser alignment tool It protects front lens. The slit mask restrains the amount of beam emitted or received and hence reduces the interference between neighbouring sensors. It is also used in cases when the beam intensity is too strong penetrating through the sensing object. However, the operating range reduces when the slit mask is used. It protects front face from damage due to striking of an object. • SF-LAT-2E • Easy to align the beam axis with the visible laser beam. Operating range • Slit on the emitter side: 4 m 13.123 ft • Slit on the receiver side: 5 m 16.404 ft • Slit on both sides: 2 m 6.562 ft 08/2005 425 SF2-EH SPECIFICATIONS Number of beam channels 12 16 20 24 28 32 36 40 48 56 64 72 80 Model PNP output equivalent type SF2-EH12 SF2-EH16 SF2-EH20 SF2-EH24 SF2-EH28 SF2-EH32 SF2-EH36 SF2-EH40 SF2-EH48 SF2-EH56 SF2-EH64 SF2-EH72 SF2-EH80 Item No. NPN output equivalent type SF2-EH12-N SF2-EH16-N SF2-EH20-N SF2-EH24-N SF2-EH28-N SF2-EH32-N SF2-EH36-N SF2-EH40-N SF2-EH48-N SF2-EH56-N SF2-EH64-N SF2-EH72-N SF2-EH80-N Protective height 220 mm 300 mm 380 mm 460 mm 540 mm 620 mm 700 mm 780 mm 940 mm 1,100 mm 1,260 mm 1,420 mm 1,580 mm 8.661 in 11.811 in 14.961 in 18.110 in 21.260 in 24.409 in 27.559 in 30.704 in 37.008 in 43.307 in 49.606 in 55.905 in 62.205 in Operating range 0.3 to 10 m 0.984 to 32.808 ft 20 mm 0.787 in Beam pitch "30 mm "1.181 in or more opaque object Detection capability 2.5 ° or less [for operating range exceeding 3 m 9.843 ft (conforming to IEC 61496-2 / UL 61496-2)] Effective aperture angle 24 V DC15 % Supply voltage Current consumption 200 mA or less Control outputs (OSSD 1, OSSD 2) (Note 1) Semiconductor output (PNP output equivalent) 2 outputs • Maximum source current: 300 mA • Applied voltage: Same as supply voltage (between control output and V) • Residual voltage: 2.5 V or less (at 300 mA source current) Semiconductor output (NPN output equivalent) 2 outputs • Maximum sink current: 300 mA • Applied voltage: Same as supply voltage (between control output and 0 V) • Residual voltage: 2 V or less (at 300 mA sink current) DC-12 or DC-13 Utilization category ON when all beam channels are received / OFF when one or more beam channels are interrupted (OFF also in case of any malfunction in the sensor or the synchronization signal.) Operation mode Incorporated Protection circuit Emitter Emitting indicator: Green LED (lights up under normal emission) Test input (emission halt) indicator: Orange LED (lights up when emission halts) Fault indicator: Yellow LED (lights up or blinks in fault occurs in sensor) Indicators Response time OFF response: 15 ms or less, ON response: 20 ms or less OSSD ON indicator: Green LED (lights up when control outputs are ON) OSSD OFF indicator: Red LED (lights up when control outputs are OFF) Incident beam indicator: Green / Red LED [lights up in green when all beams are received, lights up in red with intensity proportional to the incident light intensity for reference channel (second channel from cable side)] Fault indicator: Yellow LED (lights up or blinks in fault occurs in sensor) Receiver Incorporated Test input (emission halt) function Interference prevention function Incorporated Environmental resistance Pollution degree ( Series connection: 4 sets max., however total 192 beam channels max. Parallel connection: 4 sets max., however total 192 beam channels max. Series and parallel mixed connection: 12 sets max., however total 192 beam channels max. ) 3 (Industrial environment) Degree of protection IP65 (IEC) Ambient temperature 10 to55 C 14 to131 F (No dew condensation or icing allowed), Storage:25 to70 C 13 to158 F 30 to 85 % RH, Storage: 30 to 95 % RH Ambient humidity Sunlight: 20,000 ?x at the light-receiving face, Incandescent light: 3,500 ?x at the light-receiving face Ambient illuminance 1,000 V AC for one min. between all supply terminals connected together and enclosure Dielectric strength voltage Insulation resistance 20 MΩ, or more, with 500 V DC megger between all supply terminals connected together and enclosure Vibration resistance 10 to 55 Hz frequency, 0.75 mm 0.030 in amplitude in X, Y and Z directions for two hours each 300 m/s2 acceleration (30 G approx.) in X, Y and Z directions for three times each Shock resistance Infrared LED (Peak emission wavelength: 870 nm 0.034 mil) Emitting element Enclosure: Aluminum, Cap: ABS Material 8-core (0.3 mm24-core, 0.2 mm24-core) shielded cable, 0.5 m 1.640 ft long, with a connector at the end m Use together with the optional mating cable Cable Extension up to total 27 m 88.583 ft is possible, for both emitter and receiver, with optional mating cables. Cable extension Weight (Total of emitter and receiver) 1.1 kg approx. 1.3 kg approx. 1.5 kg approx. 1.7 kg approx. 1.9 kg approx. 2.2 kg approx. 2.4 kg approx. 2.6 kg approx. 3.1 kg approx. 3.5 kg approx. 4.0 kg approx. 4.4 kg approx. 4.9 kg approx. MS-SF2-1 (Sensor mounting bracket): 1 set for emitter and receiver, MS-SF2-2 (Intermediate supporting bracket): (Note 2), SF2-EH-TR (Test rod): 1 pc. Accessories • • • • Notes: 1) OSSD stands for ‘Output Signal Switching Device’. Notes: 2) MS-SF2-2 (intermediate supporting bracket) is attached with sensors having 24, or more, beam channels. The number of attached intermediate supporting brackets is different depending on the sensor as follows. SF2-EH24(-N), SF2-EH28(-N), SF2-EH32(-N), SF2-EH36(-N), SF2-EH40(-N), SF2-EH48(-N), SF2-EH56(-N): 1 set SF2-EH64(-N), SF2-EH72(-N), SF2-EH80(-N): 2 sets 426 08/2005 SF2-EH I/O CIRCUIT AND WIRING DIAGRAMS NPN output equivalent type I/O circuit diagram Wiring diagram CAUTION Use a safety relay unit or an equivalent safety control circuit for FSD. m1 Non-voltage contact or NPN open-collector transistor • Test input (emission halt input) Low (0 V): Emission High (V or open): Emission halt Output waveform (when output is ON) • When the sensor is in the light received condition (ON state), the receiver self-diagnoses the output circuit. For this purpose, the output transistor goes to the OFF state periodically. (Refer to the figure of output condition given at the right.) If the OFF signal is fed back, the receiver judges the output circuit as normal. If the OFF signal is not fed back, the receiver judges that the output circuit or the wiring is abnormal, and the output is maintained in the OFF state. The frequency or the period for which the output transistor turns OFF does not change even for the maximum connected set No. of 4 sets connected in series. Pulse width (width of 1 in the figure): 200 !s Take care of the input response time of the equipment connected to the sensor, since there is a possibility of the equipment malfunctioning due to the sensor OFF signal. 08/2005 427 SF2-EH I/O CIRCUIT AND WIRING DIAGRAMS PNP output equivalent type I/O circuit diagram Wiring diagram CAUTION Use a safety relay unit or an equivalent safety control circuit for FSD. m1 Non-voltage contact or NPN open-collector transistor • Test input (emission halt input) Low (0 V): Emission High (V or open): Emission halt Output waveform (when output is ON) • When the sensor is in the light received condition (ON state), the receiver self-diagnoses the output circuit. For this purpose, the output transistor goes to the OFF state periodically. (Refer to the figure of output condition given at the right.) If the OFF signal is fed back, the receiver judges the output circuit as normal. If the OFF signal is not fed back, the receiver judges that the output circuit or the wiring is abnormal, and the output is maintained in the OFF state. The frequency or the period for which the output transistor turns OFF does not change even for the maximum connected set No. of 4 sets connected in series. Take care of the input response time of the equipment connected to the sensor, since there is a possibility of the equipment malfunctioning due to the sensor OFF signal. 428 08/2005 Pulse width (width of 1 in the figure): 200 !s SF2-EH I/O CIRCUIT AND WIRING DIAGRAMS PNP output equivalent type SF-AC wiring diagram (Control category 4) Set the test input polarity selection switch of SF-AC to the ‘NPN’ side. Notes: 1) The shielding wire and 0 V (blue) of the SF2-EH series are connected in the their bodies. Notes: 2) If using the equipment with the manual reset, wire X1 to X2 as per the illustration above. If using with the automatic reset, disconnect X2 wire and connect it to X3. In this case, reset button is not required. Notes: 3) Use a momentary-type switch for the reset button. 4) Refer to p. XXX for master/slave selection input. PRECAUTIONS FOR PROPER USE Refer to the applicable regulations for the region where this device is to be used when setting up the device. In addition, make sure that all necessar y measures are taken to prevent possible dangerous operating errors resulting from earth faults. Wiring • Make sure that the power supply is off while wiring. • Verify that the supply voltage variation is within the rating. • If power is supplied from a commercial switching regulator, ensure that the frame ground (F.G.) terminal of the power supply is connected to an actual ground. • In case noise generating equipment (switching regulator, inverter motor, etc) is used in the vicinity of this sensor, connect the frame ground (F.G.) terminal of the equipment to an actual ground. • Do not run the wires together with high-voltage lines or power lines or put them in the same raceway. This can cause malfunction due to induction. 08/2005 Others • Do not use during the initial transient time (5 sec.) after the power supply is switched on. • Avoid dust, dirt and steam. • Take care that the sensor does not come in direct contact with water, oil, grease, or organic solvents, such as, thinner, etc. • Take care that the sensor is not directly exposed to fluorescent light from a rapid-starter lamp or a high frequency lighting device, as it may affect the sensing performance. 429 SF2-EH PRECAUTIONS FOR PROPER USE Safety distance • Do not utilize this sensor in ‘PSDI Mode’, in which the sensor is utilized as an activator for machinery. • To use this product in the U.S.A., refer to OSHA 1910. 212 and OSHA 1910. 217 for installation, and in Europe, refer to EN 999 as well. Observe your national and local requirements before installing this product. • Calculate the safety distance correctly, and always maintain a distance which is equal to or greater than the safety distance, between the sensing area of this sensor and the dangerous parts of the machinery. If the safety distance is miscalculated or if sufficient distance is not maintained, there is a danger of serious injury or death. • Before designing the system, refer to the relevant standards of the region where this device is to be used and then install this device. • This catalog is a guide to select a suitable product. Be sure to read the instruction manual attached to the product prior to its use. • Make sure to carr y out the test run before regular operation. • This safety system is for use only on machinery in which the dangerous parts can be stopped immediately, either by an emergency stop unit or by disconnecting the power supply. Do not use this system with machinery which cannot be stopped at any point in its operation cycle. Sensing area • Make sure to install this product such that any part of the human body that passes through the sensing area is detected before it reaches dangerous machine parts. If the human body is not detected, there is a danger of serious injury or death. • Do not use any reflective type or retroreflective type arrangement. Correct mounting method • Safety distance is calculated based on the following equation when a person moves perpendicular (normal intrusion) to the sensing area of the sensor. (Please check the latest standards for the equation.) For use in Europe (as per EN 999) • Equation 1 D KTC • D: Safety distance (mm) Minimum required distance between the surface of the sensing area and dangerous part of machine. • K: Intrusion speed of operator’s body or objects (mm/sec.) Normally, taken as 2,000 (mm/sec.) for calculation. • T: Response time of total equipment (sec.) T TmTSF2 Tm: Maximum halt time of device (sec.) TSF2: Response time of the SF2-EH series 0.015 (sec.) • C: Additional distance calculated from the size of the minimum sensing object of the sensor (mm) Note that the value of C is not less than or equal to 0. C 8(d14) d: Minimum sensing object diameter 30 (mm) 1.181 (in) For use in U.S.A. (as per ANSI B11.19) • Equation 2 Wrong mounting method 430 D K(TsTcTSF2Tbm)Dpf • D: Safety distance (mm) Minimum required distance between the surface of the sensing area and dangerous part of machine. • K: Intrusion speed {Recommended value in OSHA is 63 (inch/sec.) [c1,600 (mm/sec.)]} ANSI B11.19 does not define the intrusion speed (K). When determining K, consider possible factors including physical ability of operators. • Ts: Halt time calculated from the operation time of the control element (air valve, etc.) (sec.) • Tc: Maximum response time of the control circuit required for the brake to function. (sec.) • TSF2: Response time of the SF2-EH series 0.015 (sec.) • Tbm: Additional halt time tolerance for the brake monitor (sec.) Tbm Ta(TsTc) Ta: Setting time of brake monitor (sec.) When the machine is not equipped with a break monitor, it is recommended that 20 % or more of (Ts Tc) is taken as additional halting time. • Dpf: Additional distance calculated from the size of the minimum sensing object of the sensor (mm) Dpf 78.2 mm 3.079 in Dpf 3.4(d0.276) (inch) Dpf 3.4(d7) (mm) d: Minimum sensing object diameter 1.2 (inch)c30 (mm) Note that the value of Dpf is not less than or equal to 0. 08/2005 SF2-EH PRECAUTIONS FOR PROPER USE Influence of reflective surface Mounting of intermediate supporting bracket (MS-SF2-2) Install the sensor by considering the effect of nearby reflective surfaces and take suitable countermeasures. Failure to do so may cause the sensor not to detect, resulting in serious injury or • Keep the minimum distance given below, between the sensor and a reflective surface. Side view Distance between emitter and receiver, L Top view Allowable setting distance, D 0.3 to 3 m 0.984 to 9.843 ft 0.16 m 0.525 ft 3 to 10 m 9.843 to 32.808 ft Ltan $ $ 3  L0.052 (m) 0.171 (ft) 1 Choose the mounting direction for the L- and U-shaped intermediate supporting brackets based on the mounting direction (side or back), and temporarily tighten the mounting brackets with the hexagon-socket-head bolt (M4, length 10 mm 0.394 in). Tighten it securely, after beam alignment. The tightening torque should be 1.2 N m or less. 2 Clasp the body of the sensor with the U-shaped intermediate supporting bracket, and temporarily tighten with the hexagon-socket-head bolt (M4, length 6 mm 0.236 in) for position adjustment. Tighten it securely, after beam alignment. The tightening torque should be 1.2 N m or less. Note: The effective aperture angle for this sensor is 2.5  (with L
3 m 9.843 ft) as required by IEC 61496-2 / UL 61496-2. However, install this sensor away from the reflective surfaces, assuming an effective aperture angle of  3  to provide for misalignment, etc., during installation. Mounting • The minimum bending radius of the cable is R35 mm R1.378 in. Mount the sensor considering cable bending radius. Mounting of sensor mounting bracket (MS-SF2-1) • Choose the mounting direction for the sensor mounting bracket based on the mounting direction (side or back), and temporarily tighten the brackets with the two hexagonsocket-head bolts with washers for adjusting the mounting angle (M4, length 10 mm 0.394 in). Tighten it securely, after beam alignment. The tightening torque should be 1.2 N m or less. Note: The above drawing shows the intermediate supporting bracket mounted on the emitter. In case of mounting on the receiver, note that the intermediate supporting bracket is upside down. Mounting of cable for series connection (SF2-CSL) 1 Remove four M4 screws (length 10 mm 0.394 in) on the main sensor and the sub sensor as given below. 2 As shown below, mount the cable for series connection at the place on the main sensor and the sub sensor from where the screws have been removed. 08/2005 431 SF2-EH PRECAUTIONS FOR PROPER USE Test input (emission halt) function Connection • The emission is halted when the test input (emission halt input) wire (pink) is connected toV or kept open. The test input (emission halt input) is useful for a start-up check since the sensing output can be switched ON / OFF without the sensing object. mSignal condition Non-voltage contact or NPN open-collector transistor Series connection [4 sets max. (192 beam channels max.) connectable] • When the danger region can be approached from two or more directions, multiple sets of emitters and receivers should be connected in series. When a beam of any set is interrupted, the output turns OFF. • Test input (emission halt input) Low (0 V): Emission High (V or open): Emission halt Note: When test input (emission halt) function is not used, make sure to connect the test input (emission halt input) wire (pink) to 0 V. Interference prevention function • Interference can be prevented between 4 sets max. (192 beam channels max.) for series connection, 4 sets max. (192 beam channels max.) for parallel connection, and 12 sets max. (192 beam channels max.) for series and parallel mixed connection. In this case, connect the respective interference () (gray) and interference () (gray / black) of the adjacent sensors. Sensor A Sensor B Parallel connection [4 sets max. (192 beam channels max.) connectable] • In case there are two, or more, danger regions which can be approached from a single direction only, multiple sets of emitters and receivers can be connected in parallel by connecting their interference prevention wires to individually monitor the danger regions. Since the outputs are separate, only the output of the sensor whose beams are interrupted is turned OFF. Sensor A Sensor B Master / slave selection input • In case of parallel connection, or series and parallel mixed connection, before switching on the power supply, connect the master / slave selection input (violet) of Sensor A, as master, to 0 V and connect the master / slave selection input (violet) of Sensor B, as slave, toV or open. The master / slave selection is done only once at the time of switching on of the power supply. If selection is done after switching on of the power supply, it does not change. Further, if the master / slave selection input is kept open when the sensor is set as slave, ensure to insulate it. • In case of series connection or when using 1 set, connect the master / slave selection input (violet), as master, to 0 V. Sensor A Serial / parallel mixed connection [12 sets max. (192 beam channels max.) connectable] • In case there are two, or more, danger regions which can be approached from two or more directions, multiple sets of emitters and receivers can be connected in series and parallel mixed combination. For the sensors connected in series, the output turns OFF if the beams of any of these sensors are interrupted. For the sensors connected in parallel, the output of only the sensor whose beams are interrupted turns OFF. Sensor A Sensor B Sensor B 432 08/2005 SF2-EH DIMENSIONS (Unit: mm in) SF2-EH(-N) Sensor Assembly dimensions Mounting drawing for the sensor on which the sensor mounting brackets and the intermediate supporting brackets are mounted 59 2.323 Emitter Model No. Receiver A B C Emitter D SF2-EH12(-N) 220 8.661 312 12.283 342 13.465 362 14.252 SF2-EH16(-N) 300 11.811 392 15.433 422 16.614 442 17.402 SF2-EH20(-N) 380 14.961 472 18.583 502 19.764 522 20.551 SF2-EH24(-N) 460 18.110 552 21.732 582 22.913 602 23.701 E Receiver F 322 12.677 G H 280 11.024 SF2-EH28(-N) 540 21.260 632 24.882 662 26.063 682 26.850 362 14.252 320 12.598 SF2-EH32(-N) 620 24.409 712 28.031 742 29.213 762 30.000 402 15.827 360 14.173 SF2-EH36(-N) 700 27.559 792 31.181 822 32.362 842 33.150 442 17.402 400 15.748 SF2-EH40(-N) 780 30.709 872 34.331 902 35.512 922 36.299 482 18.976 440 17.323 SF2-EH48(-N) 940 37.008 1,032 40.630 1,062 41.811 1,082 42.598 562 22.126 520 20.472 SF2-EH56(-N) 1,100 43.307 1,192 46.929 1,222 48.110 1,242 48.898 642 25.276 600 23.622 SF2-EH64(-N) 1,260 49.606 1,352 53.228 1,382 54.409 1,402 55.197 488 19.213 976 38.425 446 17.559 892 35.118 SF2-EH72(-N) 1,420 55.905 1,512 59.527 1,542 60.709 1,562 61.496 542 21.339 1,084 42.677 500 19.685 1,000 39.370 SF2-EH80(-N) 1,580 62.205 1,672 65.827 1,702 67.008 1,722 67.795 595 23.425 1,190 46.850 574 22.598 1,148 45.197 Note: MS-SF2-2 (intermediate supporting bracket) is attached with sensors having 24, or more, beam channels. The number of attached intermediate supporting brackets is different depending on the sensor as follows. SF2-EH24(-N), SF2-EH28(-N), SF2-EH32(-N), SF2-EH36(-N), SF2-EH40(-N), SF2-EH48(-N), SF2-EH56(-N): 1 set SF2-EH64(-N), SF2-EH72(-N), SF2-EH80(-N): 2 sets 08/2005 433 SF2-EH DIMENSIONS (Unit: mm in) MS-SF2-1 Sensor mounting bracket (Accessory) Material: Cold rolled carbon steel (SPCC) (Uni-chrome plated) Four bracket set Eight M4 (length 10 mm 0.394 in) hexagonsocket-head bolts with washers and eight spring washers are attached. MS-SF2-2 Intermediate supporting bracket (Accessory) U-shaped intermediate supporting bracket L-shaped intermediate supporting bracket 20 0.787 Material: Cold rolled carbon steel (SPCC) (Uni-chrome plated) Set of 2 pcs. each of U-shaped intermediate supporting bracket and L-shaped intermediate supporting bracket Two M4 (length 6 mm 0.236 in) hexagon-socket-head bolts, two M4 (length 10 mm 0.394 in) hexagon-socket-head bolts with washers, two nuts and two plain washers are attached. Material: Cold rolled carbon steel (SPCC) (Uni-chrome plated) Note: MS-SF2-2 (intermediate supporting bracket) is attached with sensors having 24, or more, beam channels. The number of attached intermediate supporting brackets is different depending on the sensor as follows. SF2-EH24(-N), SF2-EH28(-N), SF2-EH32(-N), SF2-EH36(-N), SF2-EH40(-N), SF2-EH48(-N), SF2-EH56(-N): 1 set SF2-EH64(-N), SF2-EH72(-N), SF2-EH80(-N): 2 sets MC-SF2EH- Front protection bracket (Optional) Model No. MC-SF2EH-12 MC-SF2EH-16 MC-SF2EH-20 MC-SF2EH-24 MC-SF2EH-28 MC-SF2EH-32 MC-SF2EH-36 MC-SF2EH-40 MC-SF2EH-48 MC-SF2EH-56 MC-SF2EH-64 MC-SF2EH-72 MC-SF2EH-80 A 220 H 8.661 322 300 11.811 402 15.827 380 14.961 482 18.976 460 18.110 562 22.126 540 21.260 642 25.276 620 24.409 722 28.425 700 27.559 802 31.575 780 30.709 882 34.724 940 37.008 1,042 41.024 1,100 43.307 1,202 47.323 1,260 49.606 1,362 53.622 1,420 55.905 1,522 59.921 1,580 62.205 1,682 66.220 72 2.835 Note: The intermediate supporting bracket for protection bar is an accessory for units with beam axis of 40 or above. Use it if there is a large amount of bending of the bar. 434 12.677 08/2005