M12PFF50Q8

M12 Series Metal Barrel Sensors Datasheet Rugged, self-contained sensors in a 12 mm threaded barrel • • • • • • Complete family of sensors, all housed in a compact 12 mm threaded metal barrel Opposed, retroreflective, polarized retroreflective, diffuse and 25, 50, or 75 mm cutoff fixed-field mode operation, depending on model Excellent background suppression on fixed-field models; an excellent alternative to proximity sensors Two signal indicator LEDs for easy operating status monitoring from any direction 10 V dc to 30 V dc operation Complementary solid-state outputs (one normally open, one normally closed); PNP or NPN, depending on model WARNING: • Do not use this device for personnel protection • Using this device for personnel protection could result in serious injury or death. • This device does not include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A device failure or malfunction can cause either an energized (on) or de-energized (off) output condition. Models Models1 Sensing Mode Sensing Beam Range Output 660 nm Visible Red 5 m (16.4 ft) PNP M12E N/A M12PR M12NR M12PLP M12NLP 2 OPPOSED NPN PNP P 660 nm Visible Red 1.5 m (4.9 ft) 3 NPN 660 nm Visible Red 2.5 m (8.2 ft) 3 NPN 660 nm Visible Red 400 mm (15.7 in) NPN POLAR RETRO M12PLV PNP M12NLV RETRO M12PD PNP DIVERGENT M12ND DIFFUSE 4 M12PFF25 25 mm (1 in) cutoff; 25 mm (1 in) focus M12NFF25 M12PFF50 M12NFF50 M12PFF75 680 nm Visible Red FIXED-FIELD 4 75 mm (3 in) cutoff; 25 mm (1 in) focus M12NFF75 1 2 3 4 50 mm (2 in) cutoff; 25 mm (1 in) focus PNP NPN PNP NPN PNP NPN Only standard 2 m (6.5 ft) cable models are listed. For 9 m (30 ft) cable, add suffix "W/30" to the model number (for example, M12E W/30). Quick-disconnect models: • 4-pin integral Euro-style M12 connector: add suffix "Q8" (for example, M12EQ8) • 4-pin 150 mm (6 in) Euro-style connector: add suffix "Q5" (for example, M12EQ5) Effective Beam: 10 mm (0.39 in) Retroreflective range is specified using one model BRT-84 retroreflector. Actual sensing range may be more or less than specified, depending upon efficiency and reflective area of the retroreflector(s) used. Performance based on use of 90% reflectance white test card. Original Document 129721 Rev. F 3 May 2019 129721 M12 Series Metal Barrel Sensors Overview Banner's M12 family of sensors offers a full complement of sensing modes, all packaged in a compact yet rugged metal housing. The 12 mm barrel design allows them to mount easily into tight spaces, with the excellent performance expected of much larger sensors. The single-turn Gain potentiometer on most models and two Signal LEDs (positioned on either side of the housing for visibility) provide easy alignment and configuration for reliable sensing (see Figure 1 on page 2). Note that when the signal LED is not ON, the green Power LED is visible through all three LED ports. Power LED Single-turn Gain Potentiometer Signal LED (x2) Figure 1. Features LED Status Description Green ON Steady Power ON Green Flashing Output overloaded Amber ON Steady Light Sensed Amber Flashing Marginal excess gain Fixed-Field Mode Overview M12 Series fixed-field sensors are powerful diffuse-mode sensors with far-limit cutoff (a type of background suppression). Their high excess gain and fixed-field technology allow them to detect objects of low reflectivity that are directly in front of another surface, while ignoring the surface in the background. The cutoff distance is fixed. Background and background objects must always be placed beyond the cutoff distance. As a general rule, the most reliable sensing of an object approaching from the side occurs when the line of approach is parallel to the sensing axis. Fixed-Field Sensing – Theory of Operation The M12FF compares the reflections of its emitted light beam (E) from an object back to the sensor's two differently aimed detectors, R1 and R2. See Figure 2 on page 2. If the near detector's (R1) light signal is stronger than the far detector's (R2) light signal (see object A in the Figure below, closer than the cutoff distance), the sensor responds to the object. If the far detector's (R2) light signal is stronger than the near detector's (R1) light signal (see object B in the Figure below, beyond the cutoff distance), the sensor ignores the object. The cutoff distance for the model M12FF sensors is fixed at 25, 50, or 75 mm (1 in, 2 in, or 3 in). Objects lying beyond the cutoff distance are usually ignored, even if they are highly reflective. However, under certain conditions, it is possible to falsely detect a background object (see Background Reflectivity and Placement on page 3). Receiver Elements Near R1 Detector Cutoff Distance Object B or Background Object A Lenses Far R2 Detector Emitter E Sensing Range E R2 R1 Object is sensed if amount of light at R1 is greater than the amount of light at R2 Figure 2. Fixed-Field Concept Sensing Axis Figure 3. Fixed-Field Sensing Axis In the drawings and information provided in this document, the letters E, R1, and R2 identify how the sensor's three optical elements (Emitter "E", Near Detector "R1", and Far Detector "R2") line up across the face of the sensor. The location of these elements defines the sensing axis, see Figure 3 on page 2. The sensing axis becomes important in certain situations, such as those illustrated in Figure 6 on page 3 and Figure 7 on page 3. 2 www.bannerengineering.com - Tel: + 1 888 373 6767 P/N 129721 Rev. F M12 Series Metal Barrel Sensors Configuration Instructions Sensing Reliability For highest sensitivity, position the target for sensing at or near the point of maximum excess gain. See Performance Curves section for the excess gain curves. Sensing at or near this distance makes the maximum use of each sensor’s available sensing power. The background must be placed beyond the cutoff distance. Note that the reflectivity of the background surface also may affect the cutoff distance. Following these guidelines improves sensing reliability. Background Reflectivity and Placement Avoid mirror-like backgrounds that produce specular reflections. A false sensor response occurs if a background surface reflects the sensor's light more to the near detector (R1) than to the far detector (R2). The result is a false ON condition (Figure 4 on page 3). Correct this problem by using a diffusely reflective (matte) background, or angling either the sensor or the background (in any plane) so the background does not reflect light back to the sensor (Figure 5 on page 3). Position the background as far beyond the cutoff distance as possible. An object beyond the cutoff distance, either stationary (and when positioned as shown in Figure 6 on page 3), or moving past the face of the sensor in a direction perpendicular to the sensing axis, may cause unwanted triggering of the sensor if more light is reflected to the near detector than to the far detector. Correct the problem by rotating the sensor 90° (Figure 7 on page 3). The object then reflects the R1 and R2 fields equally, resulting in no false triggering. A better solution, if possible, may be to reposition the object or the sensor. E = Emitter R2 = Far Detector R1 = Near Detector M12..FF.. E R2 R1 Cutoff Distance Cutoff Distance Fixed Sensing Field Reflective Background Core of Emitted Beam Strong Direct Reflection to R1 M12..FF.. E R2 R1 Fixed Sensing Field Core of Emitted Beam Strong Direct Reflection Away From Sensor E = Emitter R2 = Far Detector R1 = Near Detector Figure 4. Reflective Background - Problem Reflective Background Figure 5. Reflective Background - Solution Cutoff Distance Cutoff Distance M12..FF.. M12..FF.. E R2 R1 E = Emitter R2 = Far Detector R1 = Near Detector E, R2, R1 Fixed Sensing Field Fixed Sensing Field Reflective Background or Moving Object E = Emitter R2 = Far Detector R1 = Near Detector Reflective Background or Moving Object A reflective background object in this position or moving across the sensor face in this axis and direction may cause a false sensor response. A reflective background object in this position or moving across the sensor face in this axis is ignored. Figure 6. Object Beyond Cutoff - Problem Figure 7. Object Beyond Cutoff - Solution Color Sensitivity The effects of object reflectivity on cutoff distance, though small, may be important for some applications. It is expected that at any given cutoff setting, the actual cutoff distance for lower reflectance targets is slightly shorter than for higher reflectance targets. This behavior is known as color sensitivity. These excess gain curves were generated using a white test card of 90% reflectance. Objects with reflectivity of less than 90% reflect less light back to the sensor, and thus require proportionately more excess gain in order to be sensed with the same reliability as more reflective objects. When sensing an object of very low reflectivity, it may be especially important to sense it at or near the distance of maximum excess gain. P/N 129721 Rev. F www.bannerengineering.com - Tel: + 1 888 373 6767 3 M12 Series Metal Barrel Sensors Wiring Diagrams 3 3 1 – 1 10-30V dc 4 + 2 Figure 8. Emitter 1 4 2 Load Load Figure 9. NPN Models + 10-30V dc – 3 – 10-30V dc + Load Key 1 = Brown 2 = White 3 = Blue 4 = Black Load Figure 10. PNP Models Quick disconnect wiring diagrams are functionally identical. Installation Instructions Mount the Device 1. If a bracket is needed, mount the device onto the bracket. 2. Mount the device (or the device and the bracket) to the machine or equipment at the desired location. Do not tighten the mounting screws at this time. 3. Check the device alignment. 4. Tighten the mounting screws to secure the device (or the device and the bracket) in the aligned position. Specifications Sensing Beam Fixed Field Models: Visible red, 680 nm All Other Models: Visible red, 660 nm Supply Voltage and Current 10 V dc to 30 V dc (10% max. ripple) at 20 mA current, exclusive of load Supply Protection Circuitry Protected against reverse polarity and transient voltages Output Configuration Complementary (one normally open and one normally closed) solid-state, NPN, or PNP, depending on model Output Ratings 100 mA total across both outputs with overload and short circuit protection OFF-state leakage current: • NPN: less than 200 µA at 30 V dc (see Application Note) • PNP: less than 10 µA at 30 V dc ON-state saturation voltage: • NPN: less than 1.6 V at 100 mA • PNP: less than 3.0 V at 100 mA Output Protection Circuitry Protected against output short-circuit and false pulse on power up Output Response Time Opposed Mode: 625 µs ON/375 µs OFF All Other Modes: 500 µs ON and OFF Note: 100 ms delay on power-up; outputs do not conduct during this time. 4 Repeatability Opposed Mode: 85 µs All Other Modes: 95 µs Indicators Two Status (amber) and one Power (green) LED (see Figure 1 on page 2) Adjustments Fixed-Field Models: None All Other Models: Single-turn Gain (sensitivity) potentiometer Construction Housing: Nickel-plated brass Lenses: PMMA Cable Endcap and Gain Potentiometer Adjuster: PBT Environmental Rating IEC IP67; NEMA 6, IEC IP68, and 1200 PSI washdown, NEMA ICS 5 Annex F-2002 Connections 2 m (6.5 ft) or 9 m (30 ft) 4-wire PVC-jacketed cable, Integral 4-pin M12/Euro-style quick disconnect fitting, or 4-pin 150 mm (6 in) M12/Euro-style fitting, depending on model Operating Conditions Operating Temperature: –20 °C to +60 °C (–4 °F to +140 °F) 90% at +50 °C maximum relative humidity (non-condensing) Application Notes NPN off-state leakage current is < 200 µA for load resistances > 3 kΩ or optically isolated loads. For load current 100 mA, leakage is