/ Length Micro Sensor LED-type Micro Sensor with Many Features in a Compact Body Compact body only /4th the volume of our previous product. % cost reduction over our previous product. High performance -μm resolution. Analog output models enable simple processing for small displacement. ON/OFF output models are also available. Be sure to read Safety Precautions on page 496. Ordering Output range Model Analog 4A 4±. mm ON/OFF 4D Accessories (Order Separately) Red light Appearance Model Quantity Remarks E9-L69 (Mounting bracket) Provided with the Sensor. EE-D (Connector with cable) 49
Ratings and Specifications / Length Item Model 4A 4D Light source (wavelength) Red LED (7 nm) range * 4±. mm Spot diameter *.. mm max. (at measurement center distance) Connection impedance * kω min. --- Resolution *4 μm max. --- Hysteresis * --- 4 μm Linearity * ±% F.S. --- Response time *6 ms max.. ms max. Temperature characteristic *7.% F.S./ C --- Indicators Output PWR: Power indicator ALM: Alarm indicator Lit when power is supplied (green). Not lit when illumination is sufficient. Lit when illumination is insufficient. (red) STB: Stability indicator OPE: Operation indicator Analog output to V (.6 V/mm±%) --- ON/OFF output Lit when illumination is sufficient (green). Not lit when illumination is too low. Lit when output is ON. (orange) Not lit when output is OFF. --- NPN open collector, to 4 VDC, ma max. Power Supply voltage Current consumption Ambient illumination Ambient temperature Ambient humidity Insulation resistance Dielectric strength Vibration resistance Shock resistance Tightening torque Degree of protection Connection method Weight (packed state) to 4 VDC±%, ripple voltage (p-p): mv max. ma max. Incandescent lamp: lx max. (on light-receiving side) Sunlight:, lx max. (on light-receiving side) Operating: to C (with no icing or condensation) Storage: to 6 C (with no icing or condensation) Operating: % to 8% (with no condensation) Storage: % to 9% (with no condensation) MΩ min. (at VDC), VAC for min between current carry parts and case Destruction: to Hz (-mm max. single amplitude) for min for times each in X, Y, and Z directions Destruction: m/s for times each in X, Y, and Z directions (total of 8 times).6 N m max. IP (IEC) Connector Approx. g Material Case Sensor ABS Polycarbonate Accessories Mounting Brackets (with screws) Connector with cable ( m) Instruction Manual Mounting Brackets (with screws) Connector with cable ( m) Screwdriver, instruction Manual *. The values are for N8. Munsell paper. *. The spot diameter is defined at /e of peak intensity. A sub-beam occasionally appears around the main beam. *. Refers to input impedance of a device to be connected. *4. Resolution (4A) The resolution is the peak-to-peak displacement conversion value of the analog displacement output (Conditions: N8. Munsell mat paper at the center of measurement distance with a power ripple noise (p-p) of mv max.) Output fluctuation *. The value is the peak-to-peak error rate of a displacement output voltage line with N8. Munsell mat paper. The value varies with the sensing object. *6. Response Time (4A) The response time of the Sensor (4A) is the time required for the analog displacement output to increase from % to 9% of the full value (at the rise time) or decrease from 9% to % of the full value (at the fall time). value Analog displacement output 9% % tr The response time of the Sensor (4D): ON/OFF switching time *7. The value is at the sensing range of 4 mm. tf 49
/ Length Engineering Data (Typical) Analog Output Model (4A) Distance vs. Analog Output Characteristics Angle Characteristics with Difference in Vertical Inclination Angle Characteristics with Difference in Horizontal Inclination Linear output (V) 7 6 Error (%FS) Standard paper PBT SPCC Error (%FS) Standard paper PBT SPCC 4 4 6 distance (mm) Analog Output Characteristics with Difference in Object Negative inclination 4 mm Positive inclination 8 6 4 4 6 8 Inclination angle ( ) Temperature Characteristics Negative 4 mm inclination Positive inclination 8 6 4 4 6 8 Inclination angle ( ) Resolution Characteristics with Difference in Reflection Rate Error (%FS) Standard paper PBT SPCC Error (%FS) 4 Vcc = 4 V Vcc =.8 V Vcc = 6.4 V Resolution (μm) 9 8 7 6 4.. 4 4.. Distance (mm) ON/OFF Output Model (4D) Distance vs. Adjustor Angle Characteristics 4 4 6 7 Temperature ( C) 4 6 7 8 Reflection factor (%) Adjustor angle ( ) NEAR ( ) FAR Standard paper PBT SPCC.. 4 4.. distance (mm) Note: The PBT plastic referred in this data was detected under its natural state. 494
I/O Circuit Diagrams / Length Output type Model Output circuit 4A Connector Vcc Brown to 4 VDC Analog output 4A Signal processor Output Black Output to 6. V NPN ON/OFF output NPN open collector output 4D Signal processor 4D GND Blue Connector Vcc Brown Output Load Black V to 4 VDC GND Blue V Nomenclature Analog Output 4A ON/OFF Output 4D () () () (4) () () Power (PWR) Indicator The green PWR indicator is lit when power is properly supplied to the Sensor. () Alarm (ALM) Indicator The ALM indicator is lit if there is no sensing object or the reflectivity of the sensing object is low. The indicator is lit when the amount of light is less than what is required for computation by the Sensor. When the ALM indicator is lit, make necessary adjustments so that the indicator turns OFF. Appropriate amount of light:not lit Insufficient amount of light: Lit in red () Stability (STB) Indicator The green STB indicator is lit when the Sensor is receiving sufficient light to process. If the indicator is not lit, adjust the amount of light to turn on the indicator. Sufficient illumination: Lit (green) Insufficient illumination: Not lit (4) Operation (OPE) Indicator The Sensor is synchronized with the ON/OFF output and the orange OPE indicator is lit when the Sensor has ON output. Sensor output ON: Lit (orange) Sensor output OFF: Not lit () Distance Adjustor The ON/OFF position can be set with the distance adjustor if a sensing object is at the sensing range (i.e., 4±. mm). The ON/ OFF position will shift farther from the Sensor if the distance adjustor is turned clockwise and the ON/OFF position will shift closer to the Sensor if the distance adjustor is turned counterclockwise. 49
/ Length Safety Precautions Refer to Warranty and Limitations of Liability on page F-. WARNING This product is not designed or rated for ensuring safety of persons. Do not use it for such purpose. Precautions for Correct Use Do not use the product in atmospheres or environments that exceed product ratings. Wiring Wiring Connect the connector on the provided cable to the connector of the Sensor, and connect the cable wires to the device (e.g., Controller) to be connected. Do not turn ON the power during wiring. Refer to the wiring diagram and make sure that all connections are correct. Do not connect by soldering to the connector of the Sensor. Doing so may result in damage to the Sensor. Installation Mounting Install the Sensor so that the optical axis of the Sensor and the surface of the object meet at right angles (i.e., the panel that incorporates the light source is parallel with the object). For accurate results, it is recommended that the sensing distance is set to the measurement point (4 mm). Mutual Interference 4A/D Micro can be installed within close proximity to each other and operate independently without interference (refer to the figures below). () The sensors can be arranged in a line; however, if arranged at an oblique angle, the spot of one Sensor may enter the field of vision of other and mutual interference may result. a () When using the Micro Sensor in combination with another type of Sensor (such as a Photoelectric Sensor), the sensor beams should be as close to perpendicular as possible. Light source surface object surface 4 mm Note: As the optical axis will be adjusted later, temporarily fix the Sensor. Connector When removing the connector from the Sensor, be sure to hold the connector and pull it together with the attached cable. If pulled by the cable alone, it will damage the lock mechanism inside the connector. Adjustment Axis Adjustment When the Sensor power is switched ON, the red transmitter indicator is lit. Move the Sensor so that the red beam (see the figure below) focuses on the object. The entire light beam should be focused on the object or an error will result. After the optical axis has been adjusted, tighten the mounting screws firmly. Surface of object Spot 496
/ Length 4A Analog Output The Z4D-4A has an output of V if a sensing object is located at the standard distance (i.e., 4±. mm). The output decreases if the sensing object is closer to the Sensor and the output increases if the sensing object is farther from the Sensor. The output changes by.6 V±% if the sensing object moves by mm. The standard upper and lower limits of the output are 6. and V respectively. If there is no sensing object or the reflectivity of the sensing object is low and no light is reflected to the Sensor, the analog output will output the standard upper limit. Analog Output Diagram Power (PWR) Indicator The green PWR indicator is lit when power is properly supplied to the Sensor. Alarm (ALM) Indicator The red ALM indicator is lit if there is no sensing object or the reflectivity of the sensing object is low and it is impossible for the Sensor to process the light reflected to the Sensor. The indicator is lit when the amount of light is less than what is required for computation by the Sensor. When the ALM indicator is lit, make necessary adjustments so that the indicator turns OFF. Sufficient illumination: Not lit Insufficient illumination: Lit (red) 4D ON/OFF Output Diagram The ON/OFF position can be set with the distance adjustor if a sensing object is at the sensing range (i.e., 4±. mm). The ON/ OFF position will shift farther from the Sensor if the distance adjustor is turned clockwise and the ON/OFF position will shift closer to the Sensor if the distance adjustor is turned counterclockwise. If there no sensing object is present or if the reflectivity from a sensing object is too small to reach the Sensor, the output will turn OFF. ON/OFF Output Diagram Analog output (V) ON OFF 4±. mm Precautions Handling Install the Sensor in a clean environment keep the filter (on the front of the Sensor) free from oil and dust. If affected by oil or dust, clean the Sensor as follows:. Use a blower brush (used to clean camera lenses) to blow large dust particles from the surface. Do not blow the dust away with your mouth.. Use a soft cloth (for lenses) with a little alcohol to remove the remaining dust. Note: Do not use a scrubbing action when cleaning as a scratch on the filter could result in the Sensor malfunctioning. Do not use switching power supplies that generate excessive noise, which may cause sensing errors. The following LC filter effectively reduces noise. Sensor C The Sensor cannot sense an object accurately if the surface of the object consists of different colors or materials placed next to each other (refer to the figures below). In such a case install the Sensor so that the boundaries of the materials and the Sensor are parallel. Environment Refrain from using the Micro Sensor in a strong electromagnetic field or in an environment where the operation of the Sensor is subject to the reflection of intensive light (such as a laser beam or an electric arc welding machine). The Micro Sensor cannot accurately sense a mirrorlike object, a transparent object, one with an extremely small reflection ratio, an object smaller than the diameter of the Sensor s sensing spot, or an inclined object. L L Power supply Stability (STB) Indicator The green STB indicator is lit when the Sensor is receiving sufficient light to process. If the indicator is not lit, adjust the amount of light to turn on the indicator. Sufficient illumination: Lit (green) Insufficient illumination: Not lit Operation (OPE) Indicator The Sensor is synchronized with the ON/OFF output and the orange OPE indicator is lit when the Sensor has ON output. Sensor output ON: Lit (orange) Sensor output OFF: Not lit Distance adjustor position 4±. mm 497
/ Length Dimensions (Unit: mm) Analog Output Model 4A With Mounting Brackets Power indicator.4 Alarm indicator 6 9.6.. Vinyl-insulated round cable with conductors, 4 dia. Conductor cross-sectional area:. mm Insulator diameter:. mm Standard length: m Mounting Bracket can be attached to this side. Receiver.9. 8.4 R.6 9.. 4.8 Mounting holes Mounting Hole Dimensions Two, M..7.9 9. Emitter Optical axis 7...7 Two, M ON/OFF Output Model 4D With Mounting Brackets Stability indicator. Operation indicator 6 9.6 6. Vinyl-insulated round cable with conductors, 4 dia. Conductor cross-sectional area:. mm Insulator diameter:. mm Standard length: m.4.9 8.4 Distance adjustor Mounting Hole Dimensions Mounting bracket can be attached to this side. Receiver R.6 9... 4.8 Mounting holes Two, M..7.9 9. Emitter Optical axis 7...7 Two, M 498
/ Length Accessories Mounting Bracket E9-L69. ±...7 6..... Note: Provided with the product. ±. 6...7 Connector with Cable EE-D 7.6.4 Two, C 4 4.6.,.4. Vinyl-insulated round cable with conductors, 4 dia. Conductor cross-sectional area:. mm Insulator diameter:. mm Standard length: m Terminal Arrangement Vcc Brown --- --- Output Black 4 GND Blue Note: Provided with the product. Cat. No. E8-E- In the interest of product improvement, specifications are subject to change without notice. 499