SA1E: Photoelectric Switches. Through-beam Type. Polarized Retroreflective Type. 30 ma

Similar documents
MX1C: Self-Contained Laser Displacement Sensors

Sensors. Industrial Automation Catalog Section - U906. Analog Distance Sensors SA1D

Sensors. Industrial Automation Catalog Section - U906. Miniature Self-Contained Photoelectric Sensors SA1C

Distance: SA1D. Analog Distance Detection Sensors

FEATURES. 15 m ft. 4 m ft. 2 m ft. 100 mm in. 600 mm in. 15 m ft. 4 m ft. 2 m ft. 100 mm 3.

Distance: MX1C. Self-Contained Laser Displacement Sensors

NA1-PK3 SERIES. Compact Size Picking Sensor. Boasts a compact, pocket lighter size enabling universal installation

NA1-PK3 SERIES. Compact Size Picking Sensor. Boasts a compact, pocket lighter size enabling universal installation

Emitting and receiving element pitch: 10 mm in

Compact Photoelectric Sensor

Cylindrical Photoelectric Sensor

USER S MANUAL. EX-20 Series. Amplifier Built-in Ultra-compact Type Photoelectric Sensor

Sensors. Fork/Slot: SR21. Fork/Slot: SR Micro-processor Based Slot Sensors For Labeling & Packaging

Ultraminiature Photoelectric Switches with Self-contained Amplifier

Sensors. Color: S65-V. Application Sensors. Color: S65-V Compact 50 x 50

USER S MANUAL. EX-30 Series. Amplifier Built-in Type Threaded Miniature Photoelectric Sensor

Easy to replace. A pigtailed type sensor with connector (CY- -J), which is easy to replace, is also available. Environment resistant

Sensors. Contrast: TL46. Contrast: TL Digital Contrast Sensor with Metal Housing

Universal Sensors. Tubular: S51 Series. M18 Photoelectric Sensors

NA1-11. Small / Slim Object Detection Area Sensor. Cross-beam scanning system to detect slim objects

E3S-CR62/67. Ideal for detecting transparent glass and plastic containers. Transparent bottle sensor. Features

Industry's standard of transparent object detection sensor

Long Range Metal Body Sensor

Built-in Amplifier Photoelectric Sensor

General-Purpose Photoelectric Sensors with Self-Contained Amplifier

Sensors. Luminescence: LD46. Luminescence: LD UV LED Emission Sensors

Long Range Metal Body Sensor

Built-in Amplifier Photoelectric Sensor

HPJSeries HPJ. Ultraminiature Photoelectric Sensors with Self-contained Amplifier

Z4D-F. LED-type Micro Displacement Sensor with Many Features in a Compact Body. Micro Displacement Sensor. Ordering Information.

Sensing method Through-beam Retroreflective Diffuse reflective Convergent-beam Appearance Side-view Flat Side-view Flat Side-view

Long sensing range. Most suitable for conveyor lines and parking lot applications. 10 m ft (Red LED)

Operating mode. distance. 7 m Light ON Dark ON (selectable) 2 m [100 mm] (See note 1.) 100 mm (wide view)

Ultra-slim Body Picking Sensor NA1-PK5 SERIES NA1-5 SERIES. Even a slim hand is detectable by the 25 mm in pitch beam area sensor

Distance-setting Photoelectric Sensor

NA DigiParts GmbH. Small / Slim Object Detection Area Sensor

Triple Beam Adjustable Range Reflective Photoelectric Sensor Amplifier Built-in. panasonic.net/id/pidsx/global

USER S MANUAL. NX-5 Series. Power Supply Built-in Compact Multi-voltage Photoelectric Sensor

NA1-11. Small / Slim Object Detection Area Sensor. Cross-beam scanning system to detect slim objects. Letters or business cards detectable!

SUPER-SLIM PHOTOELECTRIC SENSORS. The sensor is suitable to detect small and high-speed traveling objects.

Emitting and Receiving Element Pitch: 10mm

CX-20 SERIES. General purpose photoelectric sensor with full basic performance. Compact Photoelectric Sensor OTHER SUNX PRODUCTS

Sensing method Through-beam Retroreflective Diffuse reflective Convergent-beam Appearance Side-view Flat Side-view Flat Side-view

Triple Beam Adjustable Range Reflective Photoelectric Sensor Amplifier Built-in

Ultra-slim Body Picking Sensor NA1-PK5 SERIES NA1-5 SERIES. Even a slim hand is detectable by the 25 mm in pitch beam area sensor

10 to 30 VDC (10% max. permissable ripple peak-to-peak)

40 mm Beam Pitch General Purpose Area Sensor NA40 SERIES

High-speed Fiber Optic:

Ultra-slim Body Picking Sensor NA1-PK5 SERIES NA1-5 SERIES. Even a slim hand is detectable by the 25 mm in pitch beam area sensor

Sensors. Compact: S60 Series. Compact: S60 Series. Multifunction Optoelectronic Sensors

Standard type. Basic type. 1 Stability indicator (green) 2 Operation indicator (orange) 4 Operation mode switch. 5 Power indicator (green)

Triple Beam Adjustable Range Reflective Photoelectric Sensor Amplifier Built-in

Photoelectric Switches for Harsh Environments

Amplifier-separated Manual Sensitivity Setting Photoelectric Sensor

General Purpose & Slim Body Area Sensor NA2-N SERIES. Slim body 13 mm in Maximum sensing height 540 mm in

General-Purpose Photoelectric Sensor

Distance-setting Photoelectric Sensor

CX-440SERIES. Hysteresis 2 % & Difference in sensing range between white and black 1 %

LED Collimated Beam Sensor LA-300 SERIES. LED collimated beam type which is as accurate as a laser sensor, but much safer.

Connections Appearance Sensing method Sensing distance Operating mode Model Plug-in connector Horizontal Through-beam 30 m Light-ON

40 mm Beam Pitch General Purpose Area Sensor. Failure monitoring

Twin adjuster enables delicate sensitivity setting

E3S-BT11 E3S-BR11 E3S-BD11

CX-400SERIES. World Standard. Strong, High and Less are the keywords understood internationally COMPACT PHOTOELECTRIC SENSOR. Amplifier Built-in

LED Collimated Beam Sensor LA-300 SERIES. LED collimated beam type which is as accurate as a laser sensor, but much safer.

E3Z-LS. Distance-settable Photoelectric Sensor. Ordering Information. Sensors. Accessories (Order Separately)

Amplifier Built-in Cylindrical Photoelectric Sensor

Sensing method Appearance Sensing distance Operation mode Model. Emitter E3S-2LE4 Through-beam *1. 2 m. 0.1 to 2 m. 300 mm. 2 m

EQ-500 SERIES. Long sensing range 2.5 m ft. Series expanded to include the new 1 m ft long sensing range and DC-voltage types!

New industry standard sensor

SS-A5 SERIES SH SERIES

EX-40 SERIES. Convergent Reflective Photoelectric Sensor. Reliable object detection in limited area. Stable convergent distance sensing

E3S-C. Built-in Amplifier Photoelectric Sensor. Water- and Oil-resistive Photoelectric Sensor with Metal Housing Ensuring Long Sensing Distance

Customized HP100 Sensors. HP300 Series. Customized to solve difficult application problems

SA6A: Ultrasonic Analog Distance Detection Sensors

US-N300. Suitable for Detecting Transparent Films or Transparent Bottles ULTRASONIC SENSOR. Reliable Detection of Transparent Objects

Label Sensor. Ordering Information. Application Example E3S-CD68/CD63. Ideal for Detecting Labels on Bottles. E3S-CD68/CD63 Label Sensor

Self-contained Photoelectric Sensors PZ2 Series

MICRO LASER SENSORS. DISPLACEMENT LASER SENSOR The LM10 s cost-performance ratio far outstrips the competition.

LA-T SERIES. Fast and reliable minute granular flaw detection in winding wires. Winding Wire Granular Flaw Detector PARTICULAR USE SENSORS

Safe red LED beam. Span & shift adjustment. Light beam. Receiver. Emitter. Sensing object. Darkest condition 1.00 V 1.49 V Setting condition 2.

General-Purpose Photoelectric Switches with Self-Contained Amplifier

High Speed Response Type With Built-in Output Protection Circuit

EQ-500 ADJUSTABLE RANGE REFLECTIVE PHOTOELECTRIC SENSOR. Long sensing range 2.5 m SERIES. Not affected by background objects

M-DW1. Wafer Mapping Sensor. The safe LED beam reflective type wafer mapping sensor. Safe LEDs adopted. Sensing of nitride-coated wafers possible

Compact Sensors - S8 Series. Compact size and high performance for the most challenging detection applications

Compact Sensors - S8 Series. Compact size and high performance for the most challenging detection applications

Color Detection Fiber Sensor FZ-10 SERIES. Reliable and precise color discrimination. Red, green and blue LEDs. Easy set up

SERIES. Very accurate detection by triple beam triangulation sensing method in a compact package. * Original Sensor

QL55 Series Luminescence Sensor

High Speed Response Type With Built-in Output Protection Circuit

LX-100 SERIES. Digital Mark Sensor Amplifier Built-in. Introduction of the 3 LED mark sensor 4:1. Can detect any mark!

4. Output N: NPN P: PNP

E3S-A/B. Built-in Amplifier Photoelectric Sensor. Ordering Information. Revolutionary High-performance High-quality Sensor with Built-in Amp

onlinecomponents.com High-precision measurements, comparative output (amount of light / displacement) function

Photoelectric Sensor

CATALOG LISTING SPECIFICATIONS 11 30mA 22 to 130mm (White Paper), 22 to 70mm (Black Paper) 3 to 130mm (White Paper) Ambient light Seal

E3S-CL. Distance setting photoelectric sensor in metal housing. Features

Compact Sensors - S8 Series. Compact size and high performance for the most challenging detection applications

PD30CNB25xxPS. Photoelectrics, Background suppression reflective - PointSpot. Main features. Main functions. Description

Transcription:

SAE: Photoelectric Simple, compact design for world-wide usage. Key features of the SAE photoelectric sensor include: Four sensing methods Cable types and M8 connector types available NPN output, PNP output, light ON, dark ON options Long sensing ranges, high speed response CE marked SAE: Photoelectric Switches General Specifications Cable Connector NPN output PNP output NPN output PNP output Applicable Standard Rated Operational Voltage Operating Limits Rated Insulation Voltage Power Consumption / Current Draw Sensing Range Through-beam Polarized Retroreflective Small-beam Reflective Light ON SAE-TN SAE-PN SAE-DN SAE-NN Dark ON SAE-TN2 SAE-PN2 SAE-DN2 SAE-NN2 Light ON SAE-TP SAE-PP SAE-DP SAE-NP Dark ON SAE-TP2 SAE-PP2 SAE-DP2 SAE-NP2 Light ON SAE-TNC SAE-PNC SAE-DNC SAE-NNC Dark ON SAE-TN2C SAE-PN2C SAE-DN2C SAE-NN2C Light ON SAE-TPC SAE-PPC SAE-DPC SAE-NPC Dark ON SAE-TP2C SAE-PP2C SAE-DP2C SAE-NP2C IEC606947-5-2 2 to 24V DC 0 to 0V DC 0V DC Emitter: 5 ma : 20 ma 0 m 0 ma 2.5 m (IAC-R5).5 m (IAC-R6) (Note) m (IAC-RS) 700 mm (using 200 200 mm white matt paper) Detectable Object Opaque Opaque/Transparent Hysteresis 20% maximum Response Time ms maximum Sensitivity Control Adjustable using a potentiometer (approx. 260 ) Light Source Element Infrared LED Red LED Infrared LED Red LED Operation Mode Light ON/Dark ON Control Output NPN open collector/pnp open collector 0V DC, 00 ma maximum Voltage drop: V maximum Short-circuit protection Operation LED: Yellow LED Indicators Stable LED: Green Power LED: Green (Through-beam type emitter) Interference Prevention Two units can be mounted close together Degree of Protection IP67 (IEC60529) 50 to 50 mm (using 00 00 mm white matt paper). Maintain at least 00 mm clearance between the SAE photoelectric switch and reflector. Reflectors are not attached to the photoelectric switch and must be ordered separately. 2. Standard cable length for cable type is meter. Contact IDEC for longer cable lengths. www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC -29

SAE: Photoelectric General Specifications con t Extraneous Light Immunity Operating Temperature Operating Humidity Storage Temperature Insulation Resistance Dielectric Strength Vibration Resistance Shock Resistance Material Accessories Included Weight (approx) Cable Connector Through-beam Sunlight: 0,000 lux maximum, Incandescent lamp:,000 lux maximum (at receiver) 25 to + 55 C (no freezing) 5 to 85% RH (no condensation) 40 to +70 C (no freezing) Between live and dead parts: 20 MΩ maximum (500V DC megger) Between live and dead parts: 000V AC, 50/60 Hz, minute Damage limits: 0 to 55 Hz, Amplitude 0.75 mm p-p, 20 cycles in each of axes Damage limits: 500 m/s 2, 0 shocks in each of axes Housing: PC/PBT, Lens: PC (Polarized retroreflective type: PMMA), Indicator cover: PC Instruction sheet, Sensitivity control screwdriver Emitter: 0g : 0g Emitter: 0g : 0g Polarized Retroreflective 0 g 0 g Small-beam Reflective Connection Method Cable Connector ø.5 mm, -core, 0.2 mm 2, -m vinyl cabtyre cable (2-core for the emitter of through-beam type) M8 connector (4-pin) SAE Accessories Mounting Brackets SA9Z-K0 SA9Z-K02 Vertical Horizontal Package uantity SA9Z-CM8K-4L5 Reflectors for polarized retroreflective type Package & Applicable Mounting uantity Sensing Range Bracket IAC-R5 Standard Straight, 2m IAC-L2 IAC-R6 Small Right angle, 2m IAC-L IAC-RS Tape type Straight, 5m Connector Cable for connector type Core Wires & Length SA9Z-CM8K-4S2 Straight, 2m SA9Z-CM8K-4L2 Right angle, 2m 4 SA9Z-CM8K-4S5 Straight, 5m Right angle, 5m Package uantity Slits for through-beam type Slit Width Package uantity Maximum Detectable Sensing Range (m) Object Width (mm) One side Both sides One side Both sides SA9Z-S06PN02 0.5 mm 2.5.0 7.0 0.5 SA9Z-S07PN02.0 mm 2.5.5 7.0.0 SA9Z-S08PN02 2.0 mm 6.0.5 7.0 2.0 The slit can be pressed to fit on the front easily in one touch. Slit (Stainless Steel) Dimensions 2. 8 8.2 A 6. 0. -0 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC

SAE: Photoelectric Dimensions Cable 9.0 Operation LED (yellow) (Note ) 2.9 Sensitivity Control (Note 2) 7.4 4.0 7. Through Beam Emitter or 7.4 8.8 7. Polarized retroreflective Small-beam reflective Emitter.5 25.4 2-M 9.5 o.5 - m Notes:. Power ON LED (green) for through-beam emitter. 2. No sensitivity control and stable LED are attached on the through-beam emitter.. 5.2mm for polarized retroreflective type. 4. The connector length is 8mm when a rightangle connector cable (SA9Z-CM8K-4L) is attached. Connector 9.0 Operation LED (yellow) (Note ) 2.9 7.4 4.0 6.5 7. Through Beam Projector or 7. 7.4 8.8 6.5 Polarized retroreflective Small-beam reflective 6..5 25.4 Stable LED (green) (Note 2) Sensitivity Control (Note 2) Projector (Note 4) 2-M 9.5 See notes through 4 above. Output Circuit and Wiring Diagram NPN Output PNP Output Main Circuit Main Circuit +V +V 2 to 24V DC Load Through-beam Emitter Black OUT 4 4 OUT Black 2 to 24V DC 0V 0V Blue Blue +V 2 to 24V DC 0V Blue Main Circuit Load Connector Pin Assignment ➃ (OUT) ➁ (NC) Connector Pin Assignment ➃ (NC) ➁ (NC) ➂ (0V) ➀ (+V) ➂ (0V) ➀ (+V) www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC -

SAE: Photoelectric Dimensions, continued Mounting Bracket SA9Z-K0 With Mounting Bracket 0.5 9.5 R2.0 4 2.5.7 8.0 42.5 24.8 4 R2.0 4( (.2) 6.0 2.5.7 7 2. 25.4.2 25.0 (Note 2) 25.4 42.5.5 9. Note : Center of optical axis (through-beam type) Note 2: Center of optical axis (polarized retroreflective, diffuse reflective, and small-beam reflective type) SA9Z-K02 With Mounting Bracket 6.0 7.6.0 2.5 2.5 ˆø 7..5 55.0 0.6 4.8 4.6 4 8.4 5. 25.4 2.0 5.0 (Material: Stainless Steel) R2.0 55.0 4.8 0.6 28.0 8.0 4.6 (.2) 4 2.0 5.0 5. 25.4.5 8.4 Note 2: Center of optical axis (polarized retroreflective, diffuse reflective, and small-beam reflective type) R2.0-2 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC

SAE: Photoelectric Dimensions, continued Reflector IAC-R5 2-ø4. IAC-R6 IAC-RS 5. 8. 0.2 5 4. 42. 72 60 5 9 8 4 40 25 2-ø.6 (Effective reflecting area: 0 mm). (Effective reflecting area: 47.2 47.2 mm) Reflector Mounting Bracket IAC-L2 42 IAC-L 25 Connector Cable (one-side connector) Straight SA9Z-CM8K-4S ø9.6 28 5.5 9 0 6 5 25 0 ➀ Black ➂ White ➁ Blue ➃ Cable length: 2 or 5 m ø5.2 2 4-ø4.4 2-ø 6 0 44 Note: Dielectric strength when installed on the switch Between live part and mounting bracket: 000V AC (except between live part and clamping ring) Right-angle SA9Z-CM8K-4L 28 74 60 7 8-M 0.5 holes 6 8 20.6 ø9.6 6 5 70 Material: SPCC (zinc plating) ➀ Black ➁ Blue ➂ ø5.2 58 Material: SPCC (zinc chromate plating, black) 2 Cable length: 2 or 5 m Note: Dielectric strength when installed on the switch Between live part and mounting bracket: 000V AC (except between live part and clamping ring) www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC -

General Information General Information Specifications Do not operate a sensor under any conditions exceeding these specifications. Do not operate a sensor under current and voltage conditions other than those for which the individual sensor is rated. Do not exceed the recommended operating temperature and humidity. Although sensors are rated for operation below 0 C, this specification does not imply that performance characteristics will remain constant under prolonged freezing conditions. Continued exposure and the accompanying frost, ice, dew, and condensation which accumulate on the optical surface will adversely affect sensor performance. To maintain superior performance characteristics, do not exceed vibration and shock resistance ratings while operating a sensor. In addition, avoid isolated impacts to the sensor housing which are severe enough to adversely affect the waterproof characteristics. IEC (International Electrotechnical Commission) Ratings rated IP67 are resistant to moisture when occasionally immersed in still water. rated IP64 through IP66 are resistant to moisture when occasionally subjected to splashing or when located in the vicinity of turbulent waters. These ratings do not imply that a sensor is intended for use under continual high-pressure water spray. Avoid such applications to maintain optimal sensor performance. rated IP64 through IP67 are dust-tight and water-tight. For best performance, avoid using any sensor in an area where it will be subjected to heavy particle blasts and where dust, water, or steam will accumulate on the optical surface. Extraneous Light Bright, extraneous light such as sunlight, incandescent lights, or fluorescent lights may impair the performance of sensors in detecting color or light.. SA6A ultrasonic sensors are not affected by extraneous light. Make sure that extraneous light does not exceed recommended levels found in the individual specifications sections. When 500 lux is specified, this is equal to 50 footcandles. The average factory illumination is ordinarily below this level, except in areas where visual inspection is being performed. Only in such brightly lit areas is incident light of particular concern. Unwanted light interference can often be avoided simply by making sure that the optical receiver is not aimed directly toward a strong light source. When mounting direction cannot be adjusted, place a light barrier between all nearby light sources and the receiver. Reflected-Light When installing sensors which detect reflected light, make sure that unwanted light reflections from nearby surfaces, such as the floor, walls, reflective machinery, or stainless steel, do not reach the optical receiver. Also, make sure that reflected-light sensors mounted in close proximity do not cause interfering reflections. When it is not possible to maintain the recommended clearance between sensors, as noted in the individual installation sections, provide light barriers between sensors. Through-Beam A slit attachment is available to modify the beam size of through-beam sensors. This option is recommended for detecting very small objects (near the size of the smallest object which a sensor can detect) or for eliminating light interference when sensors are mounted in close proximity. Start-up Do not test the housing for dielectric strength and insulation resistance, since the housing is connected to the electronic circuit ground of a sensor. Do not perform dielectric strength and insulation resistance tests on electrical systems without disconnecting photoelectric sensors, as such testing may result in damage to the sensor. Several lines of sensors, as noted in the individual operation sections, are provided with an internal circuit to turn an output off for a specified amount of time upon power-up. This delay is normal; it prevents a transient state when turning power on. Optimum Performance The optical surface of each sensor must be cleaned on a regular basis for continual superior performance. Use a soft cloth dipped in isopropyl alcohol to remove dust and moisture build-up. IMPORTANT: Do not use organic solvents (such as thinner, ammonia, caustic soda, or benzene) to clean any part of a sensor. All sensors experience signal inconsistencies under the influence of inductive noise. Do not use sensors in close proximity to transformers, large inductive motors, or generators. Avoid using sensors in direct contact with sources of excessive heat. Also avoid operation in close proximity to welding equipment. Laser IMPORTANT: Always consider safety when installing a laser sensor of any kind. Make sure that the laser beam cannot inadvertently shine into the eyes of people passing by or working in the vicinity. See safety information on page -20. Mounting The mounting bracket and hardware are included with sensors, where applicable. Use the appropriate hardware for mounting, along with washers and spring washers or lock nuts. Do not overtighten attachment hardware. Overtightening causes damage to the housing and will adversely affect the waterproof characteristics of the sensor. Best results can be obtained when the sensor is mounted so that the object sensed is in the center of the beam, rather than when the object is located near the edges of the sensing window. In addition, the most reliable sensing occurs when the majority of the objects being sensed are well within the sensing range, rather than at the extreme near and far limits.. Even though the SA6A ultrasonic sensor features protection against noise, there may be adverse effects from strong noise. 2. It is strongly recommended to avoid using any sensor where it will be continually subjected to elements which impair performance or cause corrosive damage to the sensor. In particular, avoid strong vibrations and shocks, corrosive gases, oils, and chemicals, as well as blasts of water, steam, dust, or other particles. www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC -55

General Information Wiring Avoid running high-voltages or power lines in the same conduit with sensor signal lines. This prevents inaccurate results or damage from induced noise. Use a separate conduit when the influence of power lines or electromagnetic equipment may occur, particularly when the distance of the wiring is extended. IMPORTANT: Connect the sensor cables and wires as noted in the individual Wiring sections. Failure to connect as shown in wiring diagrams will result in damage to the internal circuit. When extending sensor cables and wires, make sure to use cables equal or superior to that recommended in the individual specifications sections. When wiring terminals, be sure to prevent contact between adjoining terminals. When using ring or fork lug terminals, use the insulated sleeve style only. Each sensor terminal can accept only one ring of fork lug terminal. On ISF series photoelectric sensors, use recommended cable, along with the attached packing gland and washer, when wiring the terminals. This ensures waterproof and dustproof characteristics. Power Supply Noise resistance characteristics are improved when a sensor is grounded to the 0V power terminal. If the 0V power terminal is not at ground potential, use a ceramic 0.0µF capacitor which can withstand 250V AC minimum. When using a switching power supply, be sure to ground the FG terminal to eliminate high-frequency noise. The power supply should include an insulating transformer, not an autotransformer. On ISF series photoelectric sensors, the power supply should be sized according to the voltage drop through the lead wire when using a long extension for the DC type (28' or 00m maximum extension). Power Supply The compact PS5R-A power supply is the perfect companion item for most IDEC sensors. This power supply is only.77" (45mm) wide,.5" (80mm) tall, and 2.76" (70mm) deep. Call an IDEC representative for more details. Output Ratings PS5R-A2 2V DC, 0.62A PS5R-A24 24V DC, 0.2A Miscellaneous Strong magnetic fields may detract from the accuracy of the sensing measurement. Avoid mounting a sensor directly to machinery, since the housing is connected to the electronic circuit ground of the sensor. If it is necessary to mount a sensor on machinery, use the insulating plate and sleeve provided. Glossary Attenuation: Reduction of beam intensity as a result of environmental factors such as dust, humidity, steam, etc. Dark on: Output energized when light is not detected by the receiving element. For through-beam sensors, light from the projector is not detected by the receiver when an object is present. For reflected light sensors, light is not detected when it is not reflected from an object surface. Diffuse-reflected light sensors: that detect all scattered, reflected light. Light reflected from nearby surfaces, as well as intended object surface, is detected. Diffuse-reflected light sensors are often called proximity switches, since they switch when any object is near. Also use to detect color contrast when colors reflect light intensity differently (green LED recommended for this application). EEPROM: Acronym which stands for electronically erasable, programmable, read only memory. Excess gain: Ratio of optical power available at a given projector-toreceiver range divided by the minimum optical power required to trigger the receiver. Extraneous light: Incident light received by a sensor, irrelated to the presence or absence of object being detected. Extraneous light is usually unwanted background light such as sunlight and incandescent lamps in close proximity. E: The measurement of color difference as a three-variable function, located on an XYZ axis of light, hue, and chroma values. Hysteresis: Operating point and release point at different levels. For solid state sensors, this is accomplished electrically. For mechanical switches, it results from storing potential energy before the transition occurs. Light on: Output energized when light is detected by receiving element. For through-beam sensors, light from the projector is detected by the receiver when an object is not present. For reflected light sensors, light is detected when it is reflected from an object surface. Linearity: Measurement of how nearly linear, that is, how accurate actual analog output is, with respect to distance. NPN/PNP: s of open collector transistors. NPN is a sink transistor; output on establishes negative potential difference. PNP is a source transistor; output on establishes positive potential difference. Polarizing: Filtering out all reflected light except that which is projected in one plane only. Polarized retro-reflected light sensors detect the light from corner-cube type reflectors when an object is not present. Reflected-light sensors: with the projector and receiver in one housing. Light is projected by the light source, and reflected light is received by the optical surface. Includes diffuse-reflected, retro-reflected, limited-reflected, and spot-reflected sensors. Repeatability: Ability of a sensor to reproduce output readings consistently when the same value is applied consecutively, in the same direction, for a specified number of cycles, or for a specified time duration. Resolution: Overall dimension of the smallest object which can be detected (when sensing the presence of an object) or smallest increment of distance which can be distinguished with reliable results (when sensing the position of an object). Response time: Time elapsed between input and output. Total response time is the sum of object detection, amplifier response, and output response times. Retro-reflective scan: This type of reflected light sensor uses a special reflector to return projected light when an object is not present. Sensor detects the presence of an object when the light is reflected differently. Through-beam sensors: with a separate projector and receiver. The light source from the projector is detected by the receiver, except when an object is present. Transient: Undesirable surge of current (many times larger than normal current) for a very short period, such as during the start-up of an inductive motor. -56 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 7-IDEC