SLM Series Slot Sensors Datasheet An easy-to-use, self-contained, opposed-mode sensor pair in a U-shaped housing Rugged, sealed, die-cast metal housing is rated IEC IP67 (NEMA 6) Easy and economical to mount molded-in beam guides simplify beam placement Eight slot widths from 10 mm to 220 mm for a wide variety of sensing applications Current sourcing (PNP), current sinking (NPN), or bipolar (one NPN and one PNP) output, depending on model Fast 500-microsecond response time 10 V dc to 30 V dc supply voltage Single-turn potentiometer sensitivity adjustment Visible red beam Selectable Light Operate (L.O.) or Dark Operate (D.O.) with sealed switch WARNING: Not To Be Used for Personnel Protection Never use this device as a sensing device for personnel protection. Doing so could lead to serious injury or death. This device does not include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A sensor failure or malfunction can cause either an energized or de-energized sensor output condition. Models 1 2 QD Models Slot Width Output Type Cabled Models Slot Width Output Type SLM10P6Q PNP SLM10B6 10 mm (0.39 in) 10 mm (0.39 in) SLM10N6Q NPN SLM20B6 20 mm (0.79 in) SLM20P6Q PNP SLM30B6 30 mm (1.18 in) 20 mm (0.79 in) SLM20N6Q NPN SLM50B6 50 mm (1.97 in) Bipolar (one NPN and one PNP) SLM30P6Q PNP SLM80B6 80 mm (3.15 in) 30 mm (1.18 in) SLM30N6Q NPN SLM120B6 120 mm (4.72 in) SLM50P6Q PNP SLM180B6 180 mm (7.09 in) 50 mm (1.97 in) SLM50N6Q NPN SLM220B6 220 mm (8.66 in) SLM80P6Q PNP 80 mm (3.15 in) SLM80N6Q NPN SLM120P6Q PNP 120 mm (4.72 in) SLM120N6Q NPN SLM180P6Q PNP 180 mm (7.09 in) SLM180N6Q NPN SLM220P6Q PNP 220 mm (8.66 in) SLM220N6Q NPN 1 Integral 3-pin M8/Pico-style quick disconnect models are listed. Models with a quick disconnect require a mating cordset. 2 Integral 2 m (6.5 ft) unterminated cable models are listed. To order the 9 m (30 ft) PVC cable model, add the suffixW/30 to the cabled model number. For example, SLM10B6 W/30. To order the 150 mm (6 in) PUR cable model with a 4-pin M12/Euro-style quick disconnect, add the suffixQPM to the model number. For example, SLM10B6QPMA. Models with a quick disconnect require a mating cordset. Original Document 3 April 2017 122703 Rev. G 122703 SLM Series Slot Sensors Overview The SLM Series Slot Sensor (sometimes called a fork sensor) comprises an opposed-mode emitter and its receiver inside a single convenient housing. Opposed-mode sensing is very reliable, and the single, self-contained housing provides easy installation, with no sensor alignment required. In addition, molded-in arrows on the housing show at a glance the position of the beam, simplifying installation placement. Applications include counting, gear tooth detection, edge detection, part sensing on conveyor rails and belts, position and orientation verification, dimension verification, tool break monitoring, and level monitoring. 4 3 1. Output LED (amber) 2 2. Power on LED (green) 3. Dark/Light Operate select switch 5 1 4. Sensitivity potentiometer 5. Receiver aperture 6 6. Emitter aperture 7 (x2) 9 7. Beam position arrows 8. Mounting hole (all models except SLM10 and SLM20) 8 9. Mounting holes (all models) Wiring Diagrams NPN PNP Bipolar Key 1. Brown 1 + 2. White 1 1030 V dc + 3 3 3. Blue 1030 V dc 3 1030 V dc 2 4. Black 1 Load + 4 4 Load 4 Load Load Configuring the Sensor For the best results, place the objects to be detected midway between the emitter and receiver. Adjusting the Sensitivity Adjust the sensors sensitivity by turning the 270-degree-turn Sensitivity potentiometer with a small flat-blade screwdriver. Apply power to the sensor and turn the potentiometer all the way clockwise (maximum gain). If the object to be sensed does not block the beam at the maximum gain, turn the gain down a little at a time, testing with the object, until the object can be sensed reliably. If adjusting the sensitivity with the potentiometer does not provide reliable object detection, investigate alternative sensing methods. Selecting Light or Dark Operate Select dark operate (D.O.) or light operate (L.O.) by turning the DO/LO selector switch to the desired setting using a small flat-blade screwdriver. If dark operate is selected, the output conducts when the receiver element does not see the emitted light (object is present). If light operate is selected, the output conducts when the receiver element sees the emitted light (object is absent). 2 www.bannerengineering.com - Tel: +1-763-544-3164 P/N 122703 Rev. G