Self-contained Photoelectric Sensors Description Greatly improved serviceability Mounting the sensor body and routing the cable can be performed PZ2 Series PZ2 Series independently, reducing time and labour. Features If replacing the sensor body with a new one because of damage, or if World’s smallest photoelectric sensors replacing the sensor body with a Excellent mirror surface detection different model because of IP-67 rated waterproof changes in specifications, you have only to replace the sensor body.Sensors can operate side by side Detecting Distance Highly durable metallic trimmer head Thrubeam – 7,000 mm Unlike conventional resin head models, a metallic head cannot easily be defaced or cracked. Retro-reflective with Polarised filter – 2,500 mm Diffuse-reflective – 100 to 600 mm Side-by-side installation of two sensors The PZ2-41(P), PZ2-42(P), and PZ2-61(P) can operate at alter- nate-frequencies, enabling two sensors to be mounted in close proximity. Newly developed P.R.O. function P.R.O. function: The PZ2-61’s optical system is constructed so that the transmitter emits only the horizontal component of the light wave through the horizontal polarising filter and the receiver receives only the vertical compo- nent through the vertical polarising filter. This allows mirror-surfaced targets to be detected stably. 100 Self-contained Photoelectric Sensors PZ2 Applications To press machine 1 2 Detection of warpage on hoop Detection of automobile wheel Detection of tyres Detection of parts cases material (PZ2-61) passage (PZ2-61) 3 Selection Chart Type Detecting distance Model 4 PZ2-51 Long-range 7 m PZ2-51P 5 PZ2-61 6 Polarized 2.5 m PZ2-61P PZ2-41 7 Long-range 60 cm PZ2-41P PZ2-42 Short-range 10 cm PZ2-42P 8 A-3 attachment kit (optional) specially designed for PZ2-51 and -51P thrubeam models Slit plate only Slit plate and polarizing filter Polarizing filter only Slit width Detecting distance Target size Slit width Detecting distance Target size Detecting distance Target size 9 0m .5 mm5m 00 m 0.5 x 5 m0m .5 mm2m 00 m 0.5 x 5 m 2m 500 mm 6 x 6 m 1m mm8m 00 m 1 x 5 m 1m mm4m 00 m 1 x 5 m 2m mm1m 500 m 2 x 5 m 2m mm7m 00 m 2 x 5 m 10 11 Support Tool These easy-to-use mounting tools are designed for use in harsh environments. S-P12 Protective cover S-P01 Free adjuster 12 Protective cover with Free-adjustable height and mounting bracket. angle. Thickness: 3.0 mm Both vertical and horizontal (Stainless steel). mountings are available. 13 14 101 Diffuse- Retro- Thrubeam reflective reflective Photoelectric Technical Video Analog Sensor Thrubeam Measuring Displacement Bar Code High Precision Counters, Programmable Pressure Proximity Safety Light Vision Systems Sensors Guide Microscope Controllers Instruments Sensors Readers Sensors Control Units Logic Controllers Sensors Sensors Curtains Photoelectric Sensors Self-contained Photoelectric Sensors PZ2 Specifications Retro-reflective Diffuse-reflective Type Thrubeam Polarized Long-range Short-range NPN PZ2-51 PZ2-61 PZ2-41 PZ2-42 1 Model PNP PZ2-51P PZ2-61P PZ2-41P PZ2-42P 600 mm (200 x 200 mm 100 mm (100 x 100 mm Detecting distance7) 000 mm 2500 mm (with R-2 white mat paper) white mat paper) Opaque materials Opaque materials Transparent and Transparent and Detectable object (8 x 8 mm min.) (30 x 30 mm min.) opaque materials opaque materials Hysteresis —— 20% max. of detecting distance 1. Response time 1.5 ms max. 1 ms max. (2 ms in alternate frequency mode ) Light source Visible red LED Sensitivity adjustment 1-turn trimmer (240° ) Operation mode LIGHT-ON/DARK-ON (switch selectable) 2. Indicators Output and power : Red LED, Stable operation: Green LED Control output NPN or PNP: 100 mA (40 V) max., Residual voltage: 1 V max. Protection circuit Reversed polarity, overcurrent protection, surge absorber Power supply1% 2 to 24 VDC ±10%1% 2 to 24 VDC ±101% 2 to 24 VDC ±10 12 to 24 VDC ±10 T: 20 mA max. Current consumption 3. 5 mA max.3. 5 mA max 35 mA max R: 25 mA max. Enclosure rating I7 P-67 I7 P-6 I7 P-6 IP-6 Ambient light Incandescent lamp: 5,000 lux max., Sunlight: 20,000 lux max. Ambient temperature -20 to +55°C5 -20 to +5 °C5 -20 to +5 °C5 -20 to +5 °C Glass-fibre Glass-fibre Glass-fibre Glass-fibre Housing reinforced resin reinforced resin reinforced resin reinforced resin Weight (including 2-m Transmitter/receiver: Ag pprox. 50 gAg pprox. 50 Approx. 50 connector cable) Approx. 50 g each 1. The different-frequency type has “D” at the end of the model No. PZ2-41D(P)/42D(P)/61D only. 2. The power indicator is equipped with the PZ2-51 only. Connections NPN Using the light emission stop input (Transmitter of PZ2-51) Brown Brown Black Pink 12 to 24 VDC 12 to 24 VDC Load NPN open-collector output device Blue Blue [Note] PNP Signals from equipment with a PNP output cannot be input. When not using the light emission stop input, cut the root of the pink wire or connect it with the brown wire. Brown Black 12 to 24 VDC Load Blue 102 Self-contained Photoelectric Sensors PZ2 Input/Output Circuits NPN PZ2-61/41/42, PZ2-51 (Receiver) Brown 1 Black 12 to 24 VDC Blue 2 PNP 3 PZ2-51/51P (Transmitter) PZ2-61P/62P/41P/42P, PZ2-51P (Receiver) Brown Brown 4 Pink Black 12 to 24 VDC 12 to 24 VDC (Stop input light emission) Blue Blue 5 6 Adjustment 7 Switching between LIGHT-ON and DARK-ON modes Set the operation mode selector switch to “L” (right) to select the LIGHT-ON mode (L.ON), while set the switch to “D” (left) to select the DARK-ON mode (D.ON). 8 Reflective Thrubeam DARK-ON mode LIGHT-ON mode (When DARK-ON mode is specified, refer to words in parentheses.) 9 1. With no target, turn the trimmer to “Max.”. 1. With no target, turn the trimmer until the red With the receiver in place, move the LED lights (turns off). – Point A transmitter up/down and right/left. Set it at If the LED does not light (turn off) with the Max. A the midpoint of the range where the green trimmer at max., use max. as point A. LED is lit. Mount the transmitter and perform 10 adjustment in the same way. 2. Turn the trimmer counterclockwise from Max. 2. With the target in place, turn the trimmer A B until the green LED turns off. – Point A counterclockwise until the green LED turns 11 off. – Point B Max. A 12 3. Set the trimmer midway between point A Optimal 3. Set the trimmer midway between points A Optimal B position A position and Max . Confirm sensor operation. and B. Confirm sensor operation. A Max. 13 14 103 Main Main circuit circuit Short-circuit Short-circuit protection circuit protection circuit Load Load Main circuit Photoelectric Technical Video Analog Sensor Thrubeam Measuring Displacement Bar Code High Precision Counters, Programmable Pressure Proximity Safety Light Vision Systems Sensors Guide Microscope Controllers Instruments Sensors Readers Sensors Control Units Logic Controllers Sensors Sensors Curtains Photoelectric Sensors Self-contained Photoelectric Sensors PZ2 Characteristics Receiver excess gain vs. detecting distance (Typical) PZ2-61+Reflector R-2 PZ2-61+Reflector R-3 PZ2-41 100 White paper 100 X 1 10 50 X X 50 10 5 10 5 Stable operating level 5 1.5 Operating level Stable Stable operating level 1.5 1 Operating level operating level 1 Operating level 1.5 1 0 0.5 1 1.5 2 2.5 3 3.5 4 02 1 3 0 20 40 60 80 100 120 140 160 Detecting distance X (m) Detecting distance X (m) Detecting distance X (cm) Operating distance vs. detecting distance (Typical) PZ-2-42 PZ2-51 PZ2-41 30 White paper White paper 100 100 20 X X Y X 50 50 10 100 200 300 400 500 10 10 0 Detecting distance X (mm) 5 5 10 Stable Stable operating level operating level Operating level Operating level 20 1.5 1.5 30 0 50 100 150 200 250 300 010 20 Detecting distance X (mm) Detecting distance X (m) Operating distance vs. detecting Parallel displacement of optical axis (Typical) distance (Typical) PZ2-42 PZ2-61+Reflector R-2 PZ2-61+Reflector R-3 60 5 Operating level Operating level 120 White paper 4 Stable Stable operating level operating level Y 40 3 80 X 2 20 40 1 20 40 60 80 0.5 1 1.5 2 2.5 0.5 1 1.5 0 0 0 Detecting distance X (mm) Detecting distance X (m) Detecting distance X (m) 1 40 20 2 3 80 Y 40 Y 4 120 X X 5 60 PZ2-51 PZ2-51+A-3 PZ2-51+A-3 (polarizing filter) (slit plate with 0.5 mm-wide slit) 30 150 400 Operating level Operating level Operating level Stable Stable Stable operating level operating level operating level 20 100 200 10 50 100 200 300 400 0.5 1 1.5 2 2.5 24 6 8 0 0 0 Detecting distance X (mm) Detecting distance X (m) Detecting distance X (m) 10 50 Y 200 Y 20 100 Y X A-3 X A-3 (Slit plate with (Polarizing filter) 0.5 mm-wide slit) X 30 150 400 104 Distance Y (mm) Distance Y (mm) Excess gain Excess gain Excess gain Distance Y (mm) Excess gain Distance Y (mm) Distance Y (mm) Distance Y (mm) Excess gain Distance Y (mm) θ Self-contained Photoelectric Sensors PZ2 Optical axis angle (Typical) PZ2-51+A-3 (slit plate with 0.5 mm-wide slit + polarizing filter) PZ2-61+Reflector R-3 PZ2-61+Reflector R-2 20 4 4 Operating level Angle of reflector Angle of Angle of reflector Angle of sensor sensor 1 Stable operating level Y Y Y Y θ θ θ 3 10 3 50 100 150 200 2 0 2 2 Detecting distance X (mm) 1 1 10 Y A-3 (Slit plate with X 3 0.5 mm-wide slit + Polarizing filter) 0 0 20 40 30 20 10 0 10 20 30 40 40 30 20 10 0 10 20 30 40 Operating angle θ (°) Operating angle θ (°) Detecting distance vs. object size (Typical) 4 PZ2-51 PZ2-41 PZ2-42 12 140 800 T angle of R angle of Operating level Operating level reflector sensor Stable operating Stable operating level 10 700 level 5 120 R R 600 8 100 Y Y 500 80 T T 6 400 θ θ 6 60 4 300 Y Y 40 200 2 a a 100 20 White mat paper White mat paper 0 0 7 0 15 10 50 5 10 15 0 50 100 150 200 0 20 40 60 80 100 Operating angle θ (°) One side of target a (mm) One side of target a (mm) Interference area 8 PZ2-51+A-3 (slit plate with 0.5 mm-wide slit) PZ2-61+Reflector R-2 PZ2-51 0.8 250 60 Y 50 200 0.6 9 Alternate-frequency mode Y 40 150 X Operating area Operating area Interference area 0.4 30 A-3 (Slit plate with Operating area 0.5 mm - wide slit) 100 Interference area 10 20 Interference area 0.2 50 Y Y 10 X X 0 0 0 0.5 1 1.5 2 2.5 3 246 8 100 200 300 400 500 600 11 Detecting distance X (m) Detecting distance X (mm) Detecting distance X (m) PZ2-51+A-3 PZ2-51+A-3 (polarizing filter) (slit plate with 0.5 mm-wide polarizing filter) 150 20 12 125 15 Operating area Operating area 100 Interference area Polarizing A-3 direction by Polarizing direction by (Polarizing A-3 (Slit plate with 10 75 polarizing filter 13 polarizing filter filter) 0.5 mm-wide slit + Polarizing filter) 50 Y Vertical Y Vertical Interference area 5 Horizontal Horizontal Y Y 25 14 Vertical Vertical X X 0 0 0.5 1 1.5 2 2.5 3 50 100 150 200 250 Detecting distance X (m) Detecting distance X (mm) Up to two sensors can be mounted in close Up to two sensors can be mounted in close proximity. proximity. 105 Distance Y (mm) Distance Y (mm) Detecting distance Y (m) Distance Y (mm) Distance Y (mm) Detecting distance Y (mm) Detecting distance Y (m) Distance Y (m) Detecting distance Y (m) Detecting distance Y (mm) Distance Y (mm) Photoelectric Technical Video Analog Sensor Thrubeam Measuring Displacement Bar Code High Precision Counters, Programmable Pressure Proximity Safety Light Vision Systems Sensors Guide Microscope Controllers Instruments Sensors Readers Sensors Control Units Logic Controllers Sensors Sensors Curtains Photoelectric Sensors Self-contained Photoelectric Sensors PZ2 Hints on Correct Use Retro-reflective type with P.R.O. function Handling the connector When the target is of highly glossy resin or film, the Be sure to insert the connector completely then press the sensor may not detect it stably. To detect such targets lock. If the connector is not inserted completely, the stably, tilt the sensor by 10 to 30° in regard to the vertical watertightness will be lost. 1 surface of the traveling target. Disconnecting the connector from the sensor 1. Lift the lock using a slim screwdriver, etc. Mounting Caution: Do not lift the lock by 1 mm or Use the special mounting bracket supplied to mount the more. sensor. According to the mounting location, mount it as illustrated below. 2. While holding the connector, disconnect it Mounting method 1 Mounting method 2 from the sensor. Do not pull the cable. Connecting the connector to the sensor 1. Insert the connector into the sensor completely. • Mount the sensor at a torque of 0.5 N•m or less. 2. Press the lock. • With the diffuse-reflective type and retro-reflective type, combination of the normal and alternate-frequency types allows up to two sensors to be mounted in close proximity. (Response time of the alternate-frequency type sensor is 2 ms.) (PZ2-41D(P)/42D(P)/61D only) • Excessively frequent connecting and disconnecting [Note] deteriorates the packing, causing the watertightness to Up to two sensors can be be lost. Limit the frequency of connecting and discon- mounted side by side. If a necting to 15 times or less. third sensor is used, it needs be mounted far Separate to prevent • The sensor cable has a tensile strength of 5 kg for 1 interference enough away from the second maximum. Do not use excessive force to pull others so that they do not the cable. interfere with each other. Check that the third one does not interfere with the first two under actual Wiring detecting conditions, then mount it. Limit the cable length to 100 m or less. • When two or more thrubeam type sensors are mounted Optional attachment kit specially designed for close to each other, alternate the transmitter and thrubeam type receiver. This reduces mutual interference and stabilises Slit plate and polarizing filter (A-3) detection. When the detecting distance is 2.5 m or less, attach the polarizing filter. This allows you to mount up • The optional slit plate and/or polarizing filter can be to two sensors in close proximity. attached to the thrubeam type (PZ2-51 and -51P). To detect or position thin (minute) targets, use the slit plate. And, to prevent mutual interference, use the polarizing filter. Both of the slit plate and polarizing filter Receiver Transmitter can be attached to the sensor at the same time. Transmitter • The 3 type slit plates (different in slit width) and Receiver polarizing filter are packaged in the A-3 attachment kit. According to the application, use the appropriate attachment. 106 2 x ş3.5 2 x ş3.5 2 x ş4.5 Self-contained Photoelectric Sensors PZ2 Dimensions Unit: mm PZ2-41(P), 42(P), 61(P), 62(P) PZ2-51(P) PZ2 (with mounting bracket) Operation mode selector switch (Receiver) 30 Operation mode Sensitivity adjustment 3 9 7 7 Sensitivity adjustment trimmer selector switch trimmer (Transmitter) 5 14.5 20 14.5 Attachment mounting trimmer 4.4 1 Indicator Indicator 11 6 6 6 6 3.5 8.2 3.5 11 11 2.5 2.5 20 0.6 9.5 20 9.5 6 2 x M3 x 16 Centre of Indicator emitted light Centre of light 2 30 4 30 23 23 4 23 14.5 14.5 Centre of 39 received 3 2 x ş3.2 light 3 2 x ş3.2 21 2 Mounting ş3.5 mm dia. 0.18 mm x 3 3 mounting 2 ş3.5 mm dia. 0.18 mm x 3 9.5 3 6.5 Cable length hole 3 hole hole Cable length 2 m PZ2-51(P) Mounting bracket Flat nut (standard) Reflector R-4 (optional) When attachment (A-3) is attached. (standard) OP-97225 3.5 4 3.4 8.4 3.5 9 23 29 14.5 2 x M3 screw 5 *Supplied screws: M3 x 16: 2 49 7 7 6.8 11 Material: Stainless D 2 30 23 36.8 32.4 Attachment 6 steel t=1.6 5 Material: Stainless steel 23 Two nuts shown above are supplied 3 for the thrubeam type. 3.2 3 13 12.4 5 31 3.2 23 6 36 15.5 Connector D 0.5 5 9.5 (1) 10 1.0 0.9 1 2.0 Material: Stainless steel Lock 16.4 7 Reflector R-2 (accessory for PZ2-61) Reflector R-3 (optional) 47 OP-96436 31 25.4 8 17.5 PRO reflection tape 47 31 (optional) OP-96629 61 51.2 35 42 40 30.4 21 9 30 15 3.5 25 30 35 3.5 40 5.5 51.2 8 5.5 8 10 S-P01 S-P12 S-P01 Head 0.4 34 11.8 A 21 23 B 10 5 x M3 27 Supplied screws 21 36 17.3 21 12.5 5 15.5 8.9 11 24.5 23 6.8 30 5.5 6.5 43 Supplied 14.5 Supplied screw plate nut ş10 149 46 12 216 C 24.5 t=3.0 13 47 D 26 13 32 4 x ş7 46 mounting 14 A B C D hole 31 23 7 12 7. 15 6 40. 23 13 32 107 45° Photoelectric Technical Video Analog Sensor Thrubeam Measuring Displacement Bar Code High Precision Counters, Programmable Pressure Proximity Safety Light Vision Systems Sensors Guide Microscope Controllers Instruments Sensors Readers Sensors Control Units Logic Controllers Sensors Sensors Curtains 45°