Bulletin No. PES/DC-C Drawing No. LP0156 Released 04/13 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 www.redlion.net COMPACT DC POWERED PHOTO-ELECTRIC SENSORS  RETROREFLECTIVE, PROXIMITY (DIFFUSE) & OPPOSED BEAM PAIRS  MODULATED LED LIGHT BEAMS FOR IMMUNITY TO AMBIENT LIGHT  +10 to +30 VDC OPERATION WITH REVERSE POLARITY PROTECTION  NPN & PNP (CURRENT SINKING AND SOURCING ) OUTPUTS  RUGGED VALOX HOUSING MEETS NEMA 1, 2, 3, 3S, 4, 4X, 12, & 13 STANDARDS  LED SIGNAL STRENGTH INDICATOR MAKES ALIGNMENT EASY & PROVIDES INDICATION OF LIGHT SIGNAL DETERIORATION DESCRIPTION MOUNTING These compact self-contained and powerful Retroreflective, Proximity Various mounting methods have been designed to simplify alignment and (Diffuse) and Opposed Beam Pair Photo-electric Sensors provide application provide versatility in any industrial environment. The integral 18 mm threaded flexibility in counting, positioning and object detection. All units are lense can be interchanged with existing threaded entries common to 18 mm interchangeable with conventional 18 mm threaded barrel-type photo-electrics barrel sensors and inductive proximity switches. The threaded lense can also be and inductive proximity sensors. Their small 2-1/8" x 1-1/4" x 1/2" size, in installed into panel thicknesses of 5/16" through a 0.71" diameter hole and addition to various mounting options, greatly increases alignment ease and tightened into place with the supplied mounting nut. Two #4 screw clearance application possibilities. through-holes on 0.95" centers are available for side mounting or side nesting All units can be powered from +10 to +30 VDC and are reverse polarity of multiple units on 1/2" centers for scanning large areas or for code reading protected. Current sinking NPN and current sourcing PNP Open Collector applications. Units may also be mounted using the stainless steel Bottom-Mount Transistors are protected from continuous overload and inductive load transients or Side-Mount Bracket Kits (Models MB2 or MB3). These brackets allow 2 and are rated to 150 mA, with low saturation voltage and less than 1 µA offstate axes of movement & greatly simplify alignment. leakage current. In addition, no false outputs are generated at power-up. A 6 foot long 4 conductor PVC jacketed cable with strain relief provides supply input MODEL RRDC - RETROREFLECTIVE SENSOR and transistor outputs. The Model RRDC is a compact, DC powered, retroreflective photo-electric A gasketed removable back cover provides access to the LIGHT/DARK sensor with maximum detection range of 15 feet (with 3" dia. reflector Model Operate Mode Selector. When in the “Light Operate” (LO) position, outputs RT2). The “visible” LED light beam allows for easy alignment and is modulated, turn on when light is received by the detector. When in the “Dark Operate” providing immunity to ambient light. The small beam size of 1/2" at 1 foot from (DO) position, the outputs are turned on when sensor light is not detected. Also the lense, makes it a good choice for detecting relatively small objects. accessible is a 15-turn screwdriver adjustable GAIN potentiometer that enables In operation, the visible LED light beam is directed at a prismatic photo precise adjustment of system sensitivity. A rear mounted LED Signal Strength transistor, amplified and demodulated. An object which then breaks this beam Indicator “lights” whenever the sensor sees a light condition and “blinks” at a will trigger the outputs. rate proportional to the received signals strength (the stronger the signal, the RETRO TARGET faster the rate). This LED allows for easy alignment and monitoring of signal strength deterioration due to dirty optics or changes in alignment. SENSING RANGE UP TO 15' RRDC SPECIFICATIONS RETRO- REFLECTIVE 1. POWER REQUIREMENTS: +10 to +30 VDC, 10% Ripple Max., Reverse Polarity Protected, 25 mA max. (Model EMDC = 20 mA max.) 2. OUTPUTS: Current Sinking NPN and Current Sourcing PNP Open OBJECT Collector Transistors; Short Circuit Protected to +30 VDC, Internal Zener Diode Protected; ALIGNMENT I = 150 mA each; V = 30 VDC max. SNK OH Apply DC power to the RRDC and direct its visible light beam at a reflective NPN V = 0.2 V @ 10 mA load; 1 V max. @ 150 mA max. load SAT target (Models RT1 or RT2) while observing the Signal Strength LED on the PNP V = Less than 1 V @ 10 mA load; less than 2 V @ 150 mA max. SAT back of the unit. Optimum alignment occurs when the sensor is receiving the load maximum amount of reflected light and the GAIN (sensitivity) potentiometer is Offstate Leakage Current = Less than 1 µA adjusted for the highest pulse rate on the Signal Strength LED. Note that glass, 3. RESPONSE TIME: Responds to a “light” or “dark” signal duration of 1 metallic objects, and other highly reflective surfaces may not be detected. In msec. or greater. these applications, mount the sensor and reflector at any angle to the object to 4. OPERATING TEMPERATURE: -4° to+158°F (-20° to +70°C) minimize direct reflections. 5. WEIGHT: 3.5 oz (99.2 g) 1 MODEL PRDC - PROXIMITY SENSOR MB2 BOTTOM MOUNT BRACKET KIT INSTALLATION The Model PRDC is a compact, DC powered, Proximity (Diffuse) photo- 1. Remove lense mounting nut on sensor and bottom lense screw. electric sensor with a 12" maximum detecting distance (as measured with a 2. Align mounting foot A under lense as shown with threaded insert facing 90% reflective white test card). This sensor requires no special reflectors or down and attach to lense with long kit supplied screw B . reflective tapes and the limited 12" sensing range reduces detection of 3. Place sensor mounting peg into bracket hole. background reflections. It is ideally suited for detection of transparent or 4. Install screw, with washers, into long slotted bracket hole and into translucent objects, parts ejected from presses, and rotating targets such as mounting foot threaded insert. pulley spokes. A modulated “infrared” LED light beam provides immunity to ambient light. In operation, the modulated light beam is reflected by the object to be detected. Actual sensing range is determined by the surface area and the amount of reflectivity of the object. This reflected light is sensed by a photo- transistor, amplified, demodulated and then energizes the outputs. SENSING RANGE UP TO 12" PRDC B PROXIMITY OBJECT A ALIGNMENT MOUNTING With the PRDC in its sensing position, apply DC Power and direct the PEG infrared light beam at the object to be detected. While observing the Signal Strength LED, adjust the GAIN (sensitivity) potentiometer for the highest LED pulse rate. Now remove the sensed object. If the LED goes out, no further adjustment is necessary. If the LED remains lit, the sensor is “seeing” reflected light from the background. Reduce the GAIN by steps until the sensor “sees” the object but not the background. Then turn the pot counter clockwise 2 more full turns. If the background is still being sensed, it will be necessary to reduce its reflectivity by either moving it back or painting it flat black. MB3 SIDE MOUNT BRACKET KIT INSTALLATION 1. Remove lense mounting nut from sensor. MODELS EMDC & RCDC - OPPOSED BEAM 2. Install screws with flat washers, through side clearance holes in sensor EMITTER/ RECEIVER SENSOR PAIR and through top hole and slot of bracket. The Models EMDC (Emitter) and the RCDC (Receiver) are compact, DC 3. Install lockwashers and tighten hex nuts. powered, Opposed Beam photo-electric sensor pairs with a 10 foot sensing range. The Emitter contains a high power modulated “infrared” LED. The Receiver contains a sensitive photo-transistor, amplifier-demodulator and output transistors. In operation, these outputs will be triggered when the Receiver detects that an object begins to break the Emitter beam. Due to their high gain, they are ideally suited for detecting opaque objects in dirty and dusty areas or when condensation or oil film environments are present. The small 1/8" well defined beam size allows for sensing small parts accurately and provides repeatable edge sensing of opaque objects to better than 0.01" for accurate positioning applications. Greater accuracies can be achieved by aperturing the Emitter, Receiver or both. However, aperturing will result in reduced sensing distances. While the beam size is small, the Receiver has a wide field of view which allows easy “line-of-sight” alignment. SENSING RANGE UP TO 10' OBJECT EMDC RCDC EMITTER RECEIVER ALIGNMENT Temporarily mount the Emitter-Receiver Pair opposite, and in line-of-sight, to each other. Apply DC power to both and aim the Emitter at the Receiver. Move the Receiver up-down-left-right until the Signal Strength LED lights. Optimum alignment occurs when the Signal Strength LED flashes at the highest rate obtainable with the GAIN (Sensitivity) potentiometer adjusted to the lowest setting needed to light the LED. Mount the units in place. Opposed Beam Pairs should be used at their highest possible gain. Therefore, have the object to be detected in “sensing position” and adjust the GAIN potentiometer fully clockwise (maximum gain). If the Signal Strength LED comes on, “burn- through” is occurring, and will require that the GAIN pot be backed off (counter clockwise) until the LED goes out and then backed off 2 more full turns. Note that Opposed Beam Pairs must be aligned properly and mounted securely. Excessive movement or vibration can cause loss of alignment and intermittent or false operation. 2 MOUNTING OPTIONS DIMENSIONS In inches (mm) MB3 SIDE MOUNTING BRACKET MB2 BOTTOM MOUNTING BRACKET 0.10 (2.5) C L #4 MOUNTING 0.61 (15.5) BOLTS (2) 0.92 FRONT OF SENSOR (23.4) TILTS VERTICALLY C L BRACKET ±15 DEGREES (STAINLESS STEEL) FROM HORIZONTAL 90° 0.95 1.12 ISOMETRIC VIEW (24.1) (28.5) 90° 0.10 BRACKET ROTATES HORIZONTALLY (2.5) ±10 DEGREES FROM POSITION ISOMETRIC VIEW 2.00 (50.8) SHOWN BRACKET R 0.09 (2.2) 0.34 (STAINLESS STEEL) (8.6) R 0.06 (1.5) Ø 0.12 (3.0) 0.79 (20.1) 0.48 (12.2) 0.47 (11.9) R 0.48 (12.1) 1.59 0.24 (6.2) 1.79 (40.4) R 1.38 (35.1) (45.5) Ø 0.27 (6.9) R 0.70 (17.8) 2X R 0.06 (1.5) 0.34 (8.6) R 0.09 (2.2) 30.0° R 0.06 (1.5) 1.25 (31.8) 0.48 0.40 (12.2) 0.59 (10.2) (15) 0.24 (6.2) 4X R 0.09 R 1.38 (35.1) R 0.40 Ø 0.27 (6.9) (2.2) (10.2) R 0.70 (17.8) TYPICAL HOOKUP TYPICAL COUNTER INPUT SWITCH SET-UP BRN (+10 TO 30VDC) A +12V 1 2 3 COMM. B BLK (PNP O.C.) C CNT. DC * * APPLICATION PHOTO ELECTRIC WHT (NPN O.C.) DEPENDENT BLUE (COMMON) H.S. CNT. L.S. CNT. REMOTE CUB RMT. RST. CONTROLLER RST. EN. COMMON 3 SNK. SRC. HI LO FRQ. HI LO BIAS DIMENSIONS In inches (mm) .48 (12.2) FRONT REAR VIEW VIEW + GAIN CONTROL - 1.21 C SIGNAL STRENGTH LED INDICATOR L (30.7) .61 D.O. (15.5) LIGHT/DARK OPERATE SWITCH L.O. .48 CABLE (12.2) .10 (2.5) 1.08 (27.4) MOUNTING HOLES (2), #4 SCREW CLEARANCE; USE FOR SIDE MOUNTING .125 (3.2) MOUNTING NUT (SUPPLIED) GASKETED SIDE ACRYLIC VIEW COVER .71 .95 .95 (18) 6' PVC-COVERED (24.1) DIA. 4-CONDUCTOR CABLE (24.1) BROWN (+10 TO 30VDC) BLACK (PNP SOURCING OUTPUT) WHITE (NPN SINKING OUTPUT) 18 x 1 MM THREAD BLUE (COMMON) .32 (8.1) MOUNTING PEG 1.5 (38.1) (CIRCULAR, .25 (6.3) DIA.) 2.1 (53.3) EMDC HOOKUP 1. GAIN (sensitivity) control: rotate clockwise to increase gain. 2. “SIGNAL STRENGTH” LED indicator pulse at a rate proportional to received light signal BROWN strength. (+10 TO 30VDC) 3. LIGHT/DARK OPERATE SELECT control: DARK OPERATE = fully counter clockwise; LIGHT OPERATE = fully clockwise. 4. 6´ PVC-jacketed 4-wire cable supplied (2-wire, EMDC). BLUE (COMMON) ORDERING INFORMATION MODEL NO. DESCRIPTION PART NUMBERS RRDC Retroreflective DC Photo-Electric Sensor RRDC0000 PRDC Proximity (Diffuse) DC Photo-Electric Sensor PRDC0000 EMDC DC Emitter (Opposed Beam Pair) EMDC0000 RCDC DC Receiver (Opposed Beam Pair) RCDC0000 MB2 Bottom Mount Bracket Kit MB200000 MB3 Side Mount Bracket Kit MB300000 RT1 1-1/2" Dia. Prismatic Reflector (Model RRDC) RT100000 RT2 3" Dia. Prismatic Reflector (Model RRDC) RT200000 Do not dispose of unit in trash - Recycle Red Lion Controls China Red Lion Controls Red Lion Controls Red Lion Controls Unit 302, XinAn Plaza Headquarters Europe India Building 13, No.99 Tianzhou Road 20 Willow Springs Circle Softwareweg 9 201-B, 2nd Floor, Park Centra ShangHai, P.R. China 200223 York PA 17406 NL - 3821 BN Amersfoort Opp 32 Mile Stone, Sector-30 Tel +86 21 6113 3688 Tel +1 (717) 767-6511 Tel +31 (0) 334 723 225 Gurgaon-122002 Haryana, India Fax +86 21 6113 3683 Fax +1 (717) 764-0839 Fax +31 (0) 334 893 793 Tel +91 984 487 0503