Amplifier-separated Manual Sensitivity Setting Photoelectric Sensor

Transcription

1 -separated Manual Sensitivity Setting Photoelectric Sensor Twin Adjuster Enables Delicate Sensitivity Setting Twin Adjuster Its twin adjuster enables easy optimum setting to suit the application. Twin adjuster Automatic Interference Prevention The amplifier is incorporated with an automatic interference prevention function. Mutual interference does not occur even if two sensors are mounted adjacently. Quick Sensor Head Connection The unique sensor head cable clamping mechanism reduces wiring time to /3 of conventional connection time. Just insert the cables into the amplifier and turn the lever. Even a screwdriver is not required. SU-7/SH Self-diagnosis Output incorporates a self-diagnosis output, which provides a signal in case of unstable operating conditions due to beam misalignment, soiling of lens, etc. -delay Timer An -delay timer which extends the output signal by a fixed period is incorporated. This is useful when the connected device has a slow response time or when small objects are being sensed and the output signal width is too small. Normal operation Timer operation Timer period: T 0ms approx. T 368

2 APPLICATIS Detecting ICs in transparent sticks Detecting small bottles Sensing remaining tape PHOTOELECTRIC SENSORS SH- Tape SH-33R Tape reel Detecting marks SH- SH-3G Detecting transparent glass sheet in cassette Cassette Detecting wafer Wafer Transparent glass sheet SH-7 SH-7 Ultra-slim Type/SH- Ultra-small Type/SH-3 Glass Sheet Detection Sensor/SH-7 Compact size: 0.3cm 3 Thickness: 3mm with indicator An operation indicator, which enables an easy check of the operation at site, has been incorporated. Versatile mounting Diffuse reflective type sensor head Front Operation indicator (Red) Versatile, either top or side <Top > <Side > m long range with red LED beam (SH-33R) Visible red LED beam makes alignment easy. Reliable glass sheet detection Its unique optical system enables stable detection of transparent glass sheet, as well as, specular film deposited glass sheet at the same distance. Sensing range 0.5 to 7.5mm Beamemitting part No dead zone Glass sheet Beamreceiving part Glass sheet SU-7/SH Thru-beam type sensor head Front Side m Repeatability: 0.03mm 0.03mm Glass sheet Not affected by background 369

3 ORDER GUIDE Appearance Model No. s Type Appearance Sensing range Model No. Emitting element Operation indicator SU-7/SH Ultra-small type Ultra-slim type Thru-beam Diffuse reflective Front Side Front Thru-beam Diffuse reflective Glass sheet detection sensor OPTIS 50mm 0.5 to 7.5mm (with transparent glass sheet) Designation Model No. Description Slit mask For SH-3R, SH-3G and ( SH-33R only) For the ultrasmall type only ( ) OS-SS3 MS-SS3- MS-FX- 300mm 00mm 00mm This is a convenient slit mask having four types of slits. Slit size Fitting Mounting bracket for Sensing range m SH-3R SH-3G SH-33R One side 500mm 50mm 750mm "3mm 0.5 3mm Both sides 50mm 5mm 00mm 0.5 3mm 3mm Mounting bracket for the ultra-small sensor head (The thru-beam type sensor head needs two brackets.) m Min. object One side 700mm 70mm,000mm "3mm Both sides 500mm 50mm 750mm 3mm SH- SH-E SH- SH-3R SH-3G SH-33R SH-3R SH-7 Slit mask Infrared LED Red LED Green LED Red LED Infrared LED The sensor head and the slit mask are mounted together. mounting bracket Incorporated Two M3 (length mm) screws with washers are attached. Sensor checker Sensor checker POWER LEVEL Sensor checker (Note) Note: Refer to P.378l for details of the sensor checker. It is useful for beam alignment of thru-beam type sensors. The optimum receiver position is given by indicators, as well as, an audio signal. Two M3 (length 0mm) screws with washers are attached. 370

4 SPECIFICATIS s Item Applicable amplifier Sensing range Sensing object Hysteresis Ultra-slim type Ultra-small type Glass sheet Type Thru-beam Diffuse Thru-beam Diffuse detection Front Side reflective Red LED Green LED Red LED reflective sensor Model No. SH- SH-E SH- SH-3R SH-3G SH-33R SH-3R SH-7 50mm 300mm m 00mm m (Note ) Min. "0.3mm opaque object (under the optimum condition) (Note ) Min. "0.3mm copper wire with 3mm setting distance and at the max. 5% or less of operation distance Min. "mm opaque object with m setting distance and at the optimum (Note 3) Min. "mm opaque object with 00mm setting distance and at the optimum (Note 3) Refer to P.358l for characteristics. Min. "mm opaque object with m setting distance and at the optimum (Note 3) ( ) ( ) ( ) ( ) 00mm (Note ) Opaque, translucent or transparent object 5% or less of operation distance ( 0.5 to 7.5mm with transparent glass sheet 5% or less of operation distance ) mm or more transparent glass, aluminumevaporated mirror, etc. PHOTOELECTRIC SENSORS Repeatability (perpendicular to axis) Operation indicator Environmental resistance Protection Ambient temperature Ambient humidity Ambient illuminance Vibration resistance Shock resistance Emitting element Material Cable Cable extension Weight 0.03mm or less 0.5mm or less 0.mm or less IP6 (IEC) 0 to 60 C (Note ) Storage: 0 to 70 C Red LED lights up when the output of the amplifier is, incorporated on the emitter of the thru-beam type sensor head IP66 (IEC) 35 to 85% RH, Storage: 35 to 85% RH Sunlight:,000?x at the light-receiving face, Incandescent light: 3,500?x at the light-receiving face 0 to 55Hz frequency,.5mm amplitude in X, Y and Z directions for two hours each 500m/s acceleration (50G approx.) in X, Y and Z directions for three times each Infrared LED (modulated) Enclosure: Polycarbonate (glass fiber reinforced) Red LED Green LED Red LED Infrared LED (modulated) (modulated) (modulated) (modulated) Enclosure: ABS, Lens: Polycarbonate 0.089mm (ultra-slim type: 0.057mm ) single core (diffuse reflective type and glass sheet detection sensor: two parallel single core wires) shielded cable, 3m long Enclosure: Polycarbonate Extension up to total 5m (ultra-small type: 0m) is possible with an equivalent cable (thru-beam type: both emitter and receiver). Emitter: g approx. Receiver: g approx. ( ) 5 to 60 C (Note ) Storage: 30 to 70 C 0.03mm or less along axis ( ) 0 to 60 C (Note ) including ( storage ) Emitter: 0g approx. g approx. 0g approx. 5g approx. Receiver: 0g approx. SU-7/SH Accessory mounting screw: sets (SH-: set) Notes: ) The range of the diffuse reflective type sensor is specified for white non-glossy paper (50 50mm) as the object. Notes: ) The optimum condition is the condition when the is adjusted so that the operation indicator just lights up at the given distance in the light received condition. Notes: 3) The optimum stands for the level when the operation indicator just lights up in the light received condition. Notes: ) No dew condensation or icing is allowed. 37

5 SU-7/SH SPECIFICATIS Item Applicable sensor heads Supply voltage Current consumption Sensing output Output operation Short-circuit protection Self-diagnosis output Output operation Short-circuit protection Response time Operation indicator Stability indicator Sensitivity adjuster Automatic Interference prevention function Timer function Ambient temperature Ambient humidity Noise immunity Voltage withstandability Insulation resistance Vibration resistance Shock resistance Material Cable Cable extension Weight Environmental resistance Type Model No. Manual setting amplifier SH-, SH-3, SH-7 to V DC 0% Ripple P-P 0% or less 0mA or less NPN open-collector transistor Maximum sink current: 00mA Applied voltage: 30V DC or less (between output and 0V) Residual voltage:.5v or less (at 00mA sink current) 0.V or less (at 6mA sink current) Selectable either Light- or Dark- with the operation mode switch Incorporated NPN open-collector transistor Maximum sink current: 50mA Applied voltage: 30V DC or less (between self-diagnosis output and 0V) Residual voltage: V or less (at 50mA sink current) 0.V or less (at 6mA sink current) under stable condition ms or less Red LED (lights up when the output is ) Green LED (lights up under stable light received condition or stable dark condition) Continuously variable twin adjusters Incorporated (Two units of sensors can be mounted closely.) Approx. 0ms fixed -delay timer, selectable either effective or ineffective 5 to 60 C (No dew condensation or icing allowed), Storage: 30 to 70 C 35 to 85% RH, Storage: 35 to 85% RH Power line: 0Vp, and 0.5!s pulse width; Radiation: 300Vp, and 0.5!s pulse width (with noise simulator),000v AC for one min. between all supply terminals connected together and enclosure 0MΩ, or more, with 500V DC megger between all supply terminals connected together and enclosure 0 to 55Hz frequency,.5mm amplitude in X, Y and Z directions for two hours each 00m/s acceleration (0G approx.) in X, Y and Z directions for three times each Enclosure: Heat-resistant ABS, Cover: Polycarbonate 0.mm -core cabtyre cable, 3m long Extension up to total 00m is possible with 0.3mm, or more, cable. 0g approx. Accessories I/O CIRCUIT AND WIRING DIAGRAMS I/O circuit diagram Sensor circuit ZD Tr D ZD Tr Color code (Brown) V (Black) Load Sensing output Load 00mA max. (Orange) Self-diagnosis output (Blue) 0V 50mA max. MS-DIN- ( ): No., Adjusting screwdriver: No., Adjuster cap: No. to V DC 0% Wiring diagram to sensor head Terminal No. () Brown lead wire Shield Shield 3 Gray cable (Beam-emitting) Internal circuit Users circuit Symbols... D: Reverse supply polarity protection diode ZD, ZD: Surge absorption zener diode Tr, Tr : NPN output transistor Yellow lead wire Black cable (Beam-receiving) 37

6 PRECAUTIS FOR PROPER USE This product is not a safety sensor. Its use is not intended or designed to protect life and prevent body injury or property damage from dangerous parts of machinery. It is a normal object detection sensor. Always use the sensor head and the exclusive amplifier together as a set. Cable extensiton for sensor head If the attached sensor head cables need to be extended, use two single core shielded cables of at least equivalent quality. If a joint terminal or connector is used for extension, refer to the figures below. (The shielded extension cable must be of ".5mm outer diameter.) This distance should be as short as possible. Beamemittinreceiving Beam- cable cable NG Beamemittinreceiving Beam- cable cable NG Connection with joint terminal The beam-emitting cable and the beam-receiving cable should be separated from each other as much as possible. Connection with metal connector The beam-emitting cable and the beam-receiving cable must not be connected to one metal connector. Use two separate metal connectors. Beamemitting cable Beamreceiving cable OK Beamemittinreceiving Beam- cable cable OK Refer to P.80l for general precautions and P.360l for precautions for sensor head. Trimming sensor head cables Trim the ends of sensor head cables as follows. mm 8mm 5mm In case of the reflective type sensor heads, with two parallel cables, the beam-emitting cable must be longer than the beam-receiving cable as shown below. Note: Do not solder the cable ends. Beam-emitting cable (Gray) Beam-receiving cable (Black) 0mm mm PHOTOELECTRIC SENSORS Connection to sensor head Rotate the cable lock lever approx. 60 clockwise. Insert the black beam-receiving cable s yellow inner wire into Terminal No. and the outer woven shield wire into Terminal No Rotate the cable lock lever approx. 90 counterclockwise. (The beamreceiving cable is hooked up.) Press the beam-receiving cable into the rubber retainer. 5 Insert the gray beam-emitter cable s brown inner wire into Terminal No. and the outer woven shield wire into Terminal No Rotate the cable lock lever back to the LOCK position. (The beamemitter cable is hooked up.) 7 Press the beam-emitter cable into the rubber retainer. 6 7 SU-7/SH 373

7 SU-7/SH PRECAUTIS FOR PROPER USE Mounting Stopper Attached amplifier or 35mm width DIN rail Fit the front part of the amplifier on the attached amplifier (MS-DIN-) or a 35mm width DIN rail. Press down the rear part of the amplifier on the attached amplifier (MS-DIN-) or the DIN rail to fit it. m To remove the amplifier, pull the stopper backwards. When the amplifier is fixed with screws and nuts, the tightening torque should be 0.58N m or less. Refer to P.80l for general precautions and P.360l for precautions for sensor head. M3 (length 0mm) screw with washers MS-FX- (Optional) Wiring The self-diagnosis output is not incorporated with a shortcircuit protection circuit. Do not connect it directly to a power supply or a capacitive load. Others Do not use during the initial transient time (30ms) after the power supply is switched on. Self-diagnosis function The sensor checks the incident light intensity, and if it is reduced due to dirt or dust, or beam misalignment, an output is generated. Time chart Sensing condition Sensing output (operation indicator) (in the Light- mode) Stability indicator Self-diagnosis output Timer operation mode switch setting Timer operation mode selection OFD OFD OFD OFD Insufficient beam intensity Sensing mode selection MODE MODE MODE MODE 3 Timer operation If the timer operation mode switch is set to OFD, approx. 0ms fixed delay timer operation is obtained. This function is useful if the output signal is so short that the conntected device cannot respond. Sensing condition Operation Light- normal operation Light- -delay Dark- normal operation Dark- -delay Insufficient beam interruption Stable light received level Sensing output threshold level Stable dark level (Lights up) (Lights off) Lights up Lights off The self-diagnosis output transistor stays in the state during stable. When the output changes, if the incident light intensity does not reach the stable light received level or the stable dark level, the self-diagnosis output becomes. Further, the self-diagnosis output changes state when the output changes from Light to Dark state. (It is not affected by the operation mode switch). 3 In case of insufficient beam interruption, there will be a time lag before the self-diagnosis output turns. Operation of timer operation mode switch T T T Beam received Beam interrupted T Timer period: T 0ms approx. 37

8 PRECAUTIS FOR PROPER USE Sensitivity adjustment The amplifier incorporates a coarse adjuster and a fine adjuster. The adjuster and the adjustment procedure are different depending on whether a coarse setting is to be done or a fine difference is to be sensed. Hence, adjust to the optimum as per the procedure given below. Coarse adjuster STB. SENS. GND OUT COARSE ( ) FINE ( ) Fine adjuster N7EO JAPAN OFD MODE Refer to P.80l for general precautions and P.360l for precautions for sensor head. Thru-beam Diffuse reflective For fine Light received condition Emitter Emitter Sensing object Receiver Receiver Sensing object Emitter Emitter Dark condition Sensing object Sensing object Receiver Receiver PHOTOELECTRIC SENSORS Coarse Step 3 Adjustment Set the fine adjuster at MAX. and the coarse adjuster at MIN. Under the light received condition, turn the coarse adjuster gradually clockwise. Find out the at which the sensor enters the Light state operation. Under the dark condition, turn the coarse adjuster further clockwise until the sensor enters the Light state operation. Once it changes state, turn the coarse adjuster gradually counterclockwise to determine the point b where the sensor re-enters the Dark state operation. Set the adjuster at the center between the and b. Coarse adjuster MIN. in the light received condition A MIN. in the dark condition A B Optimum A B Fine adjuster MAX. At MAX. position Fine Step 3 5 Adjustment Set the fine adjuster at the center and the coarse adjuster at MIN. Under the light received condition, turn the coarse adjuster gradually clockwise until the sensor enters the Light state operation. Next, turn the fine adjuster counterclockwise until the sensor returns to the Dark state operation. Once it changes state, turn the fine adjuster gradually clockwise to determine the where the sensor re-enters into the Light state operation. Under the dark condition, turn the fine adjuster further clockwise until the sensor enters the Light state operation. Once it changes state, turn the fine adjuster gradually counterclockwise to determine the point b when the sensor re-enters the Dark state operation. Set the fine adjuster at the center between the and b. Coarse adjuster MIN. in the light received condition MIN. Leave at above setting Fine adjuster Center Center in the light received condition Center A in the dark condition A B Optimum A B SU-7/SH 375

9 DIMENSIS (Unit: mm) Stability indicator (Green) Operation indicator (Red) Cable lock lever Assembly dimensions with attached amplifier Coarse adjuster Fine adjuster MS-DIN- Refer to P.366l for dimensions for sensor head 3.8 (Accessory for ) Operation mode switch Timer operation mode switch Adjuster cap ".8 cable 3m long " 35 t Material: Cold rolled carbon steel (SPCC) (Uni-chrome plated) 7 MS-DIN- 3.5 Attached amplifier ( ) "3.5 mounting holes Suitable for 35mm width DIN rail SU-7/SH MS-FX (Optional). 3 0 t "3.5 holes -M3 0.5 (Burring). t. Material: Cold rolled carbon steel (SPCC) (Uni-chrome plated) Two M3 (length 0mm) screws with washers are attached. 376