Self-contained Photoelectric Sensors PZ2 Series

Transcription

1 Self-contained PZ Series Features World s smallest photoelectric sensors Excellent mirror surface detection IP-7 rated waterproof can operate side by side Detecting Distance Thrubeam 7, Retro-reflective with Polarised filter, Description Greatly improved serviceability Mounting the sensor body and routing the cable can be performed independently, reducing time and labour. If replacing the sensor body with a new one because of damage, or if replacing the sensor body with a different model because of changes in specifications, you have only to replace the sensor body. Highly durable metallic trier head Unlike conventional resin head models, a metallic head cannot easily be defaced or cracked. Diffuse-reflective to Side-by-side installation of two sensors The PZ-(P), PZ-(P), and PZ-(P) can operate at alternate-frequencies, enabling two sensors to be mounted in close proximity. Newly developed P.R.O. function P.R.O. function: The PZ- 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 component through the vertical polarising filter. This allows mirror-surfaced targets to be detected stably.

2 Self-contained PZ Applications To press machine Detection of warpage on hoop material (PZ-) Selection Chart Thrubeam Retroreflective Diffusereflective Slit width Long-range Polarized Long-range Short-range Detecting distance Detection of automobile wheel passage (PZ-) Target size.. x x x cm Detection of tyres cm These easy-to-use mounting tools are designed for use in harsh environments.. m Detection of parts cases Type Detecting distance Model A- attachment kit (optional) specially designed for PZ- and -P thrubeam models Slit plate only Slit plate and polarizing filter Polarizing filter only Support Tool S-P Protective cover Protective cover with mounting bracket. Thickness:. (Stainless steel). Slit width Detecting distance Target size.. x x 7 x S-P Free adjuster Free-adjustable height and angle. Both vertical and horizontal mountings are available. 7 m Detecting distance PZ- PZ-P PZ- PZ-P PZ- PZ-P PZ- PZ-P Target size x Safety Light Curtains Proximity Pressure Prograable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide 7

3 PZ Self-contained Specifications Type Model Thrubeam Retro-reflective Polarized Long-range Diffuse-reflective Short-range NPN PZ- PZ- PZ- PZ- PNP Detecting distance Detectable object PZ-P PZ-P 7 (with R-) Opaque materials ( x min.) Opaque materials ( x min.) PZ-P ( x white mat paper) Transparent and opaque materials PZ-P ( x white mat paper) Transparent and opaque materials H ysteresis % max. of detecting distance R esponse time. ms max. ms max. ( ms in alternate frequency mode. ) Light source Sensitivity adjustment Operation mode Indicators Control output Protection circuit Visible red LED -turn trier ( ) LIGHT-ON/DARK-ON (switch selectable). O utput and power : Red LED, operation: Green LE D NPN or PNP: ma ( V) max., Residual voltage: V max. Reversed polarity, overcurrent protection, surge absorber P ower supply to VDC ±% to VDC ±% to VDC ±% to VDC ±% Current consumption T: ma max. R: ma max. ma max. ma max. ma max. Enclosure rating IP-7 IP-7 IP-7 IP-7 Ambient light Incandescent lamp:, lux max., Sunlight:, lux max. Ambient temperature - to + C - to + C - to + C - to + C Housing Weight (including -m connector cable) Glass-fibre reinforced resin Transmitter/receiver: Approx. g each Glass-fibre reinforced resin Approx. g. The different-frequency type has D at the end of the model No. PZ-D(P)/D(P)/D only.. The power indicator is equipped with the PZ- only. Glass-fibre reinforced resin Approx. g Glass-fibre reinforced resin Approx. g Connections NPN Using the light emission stop input (Transmitter of PZ-) Black Load to VDC Pink NPN open-collector output device to VDC PNP [Note] 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. Black Load to VDC

4 Self-contained PZ Input/Output Circuits NPN PZ-//, PZ- (Receiver) Main circuit Short-circuit protection circuit Black PNP PZ-P/P/P/P, PZ-P (Receiver) Main circuit Short-circuit protection circuit Adjustment Black Load Load to VDC to VDC PZ-/P (Transmitter) 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). Thrubeam DARK-ON mode A Max. Max. A Optimal position Max.. With no target, turn the trier to Max.. With the receiver in place, move the transmitter up/down and right/left. Set it at the midpoint of the range where the green LED is lit. Mount the transmitter and perform adjustment in the same way.. Turn the trier counterclockwise from Max. until the green LED turns off. Point A. Set the trier midway between point A and Max. Confirm sensor operation. Main circuit Reflective LIGHT-ON mode (When DARK-ON mode is specified, refer to words in parentheses.) B A A B Optimal position A Pink (Stop input light emission) to VDC. With no target, turn the trier until the red LED lights (turns off). Point A If the LED does not light (turn off) with the trier at max., use max. as point A.. With the target in place, turn the trier counterclockwise until the green LED turns off. Point B. Set the trier midway between points A and B. Confirm sensor operation. Safety Light Curtains Proximity Pressure Prograable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide 7

5 PZ Self-contained Characteristics Receiver excess gain vs. detecting distance (Typical) PZ-+Reflector R- PZ-+Reflector R- PZ- White paper Detecting distance (m) Detecting distance (m) Detecting distance (cm) Operating distance vs. detecting distance (Typical) PZ-- White paper PZ- PZ- White paper.. Distance () Detecting distance () Detecting distance () Detecting distance (m) Operating distance vs. detecting distance (Typical) Parallel displacement of optical axis (Typical) Distance () PZ- White paper Detecting distance () Distance () PZ-+Reflector R- PZ-+Reflector R-... Detecting distance (m) Distance ().. Detecting distance (m) Distance () PZ- Detecting distance (m) Distance () PZ-+A- (slit plate with. -wide slit) Detecting distance () A- (Slit plate with. -wide slit) Distance () PZ-+A- (polarizing filter)... Detecting distance (m) A- (Polarizing filter)

6 Self-contained PZ Distance () Detecting distance (m) PZ-+A- (slit plate with. -wide slit + polarizing filter) PZ- T angle of reflector R T Detecting distance () A- (Slit plate with. -wide slit + Polarizing filter) Operating angle ( ) Distance () Distance () PZ-+Reflector R- Alternate-frequency mode R angle of sensor... Detecting distance (m) PZ-+A- (polarizing filter) 7 R T Polarizing A- direction by (Polarizing polarizing filter filter) Vertical Horizontal Vertical... Detecting distance (m) Up to two sensors can be mounted in close proximity. Optical axis angle (Typical) Detecting distance (m) PZ-+Reflector R- Angle of reflector Angle of sensor Operating angle ( ) Detecting distance vs. object size (Typical) Detecting distance () Distance (m) Distance () PZ- operating 7 level a White mat paper One side of target a () PZ-.... Detecting distance (m) Detecting distance (m) Detecting distance () Distance () PZ-+A- (slit plate with. -wide polarizing filter) A- (Slit plate with. -wide slit + Polarizing filter) Polarizing direction by polarizing filter Vertical Horizontal Detecting distance () Up to two sensors can be mounted in close proximity. Vertical PZ-+Reflector R- Angle of reflector Angle of sensor Operating angle ( ) PZ- One side of target a () a White mat paper PZ-+A- (slit plate with. -wide slit) Detecting distance () A- (Slit plate with. - wide slit) Safety Light Curtains Proximity Pressure Prograable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide 7

7 PZ Self-contained Hints on Correct Use Retro-reflective type with P.R.O. function When the target is of highly glossy resin or film, the sensor may not detect it stably. To detect such targets stably, tilt the sensor by to in regard to the vertical surface of the traveling target. Mounting Use the special mounting bracket supplied to mount the sensor. According to the mounting location, mount it as illustrated below. Mounting method Mounting method Handling the connector Be sure to insert the connector completely then press the lock. If the connector is not inserted completely, the watertightness will be lost. Disconnecting the connector from the sensor. Lift the lock using a slim screwdriver, etc. Caution: Do not lift the lock by or more.. While holding the connector, disconnect it from the sensor. Do not pull the cable. Connecting the connector to the sensor. Insert the connector into the sensor completely. Mount the sensor at a torque of. N m or less. 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 ms.) (PZ-D(P)/D(P)/D only) [Note] Up to two sensors can be mounted side by side. If a third sensor is used, it needs be mounted far enough away from the others so that they do not interfere with each other. Check that the third Separate to prevent interference one does not interfere with the first two under actual detecting conditions, then mount it. When two or more thrubeam type sensors are mounted close to each other, alternate the transmitter and receiver. This reduces mutual interference and stabilises detection. When the detecting distance is. m or less, attach the polarizing filter. This allows you to mount up to two sensors in close proximity. Transmitter Receiver. Press the lock. Excessively frequent connecting and disconnecting deteriorates the packing, causing the watertightness to be lost. Limit the frequency of connecting and disconnecting to times or less. The sensor cable has a tensile strength of kg for second maximum. Do not use excessive force to pull the cable. Wiring Limit the cable length to m or less. Optional attachment kit specially designed for thrubeam type Slit plate and polarizing filter (A-) The optional slit plate and/or polarizing filter can be attached to the thrubeam type (PZ- and -P). 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 can be attached to the sensor at the same time. Receiver Transmitter The type slit plates (different in slit width) and polarizing filter are packaged in the A- attachment kit. According to the application, use the appropriate attachment.

8 Self-contained PZ Dimensions Unit: PZ-(P), (P), (P), (P) PZ-(P) PZ (with mounting bracket). Operation mode selector switch Centre of emitted light Sensitivity adjustment trier. Indicator.. Centre of. received light x ø. ø. dia.. x mounting Cable length hole hole PZ-(P) When attachment (A-) is attached.. D Attachment D.... Reflector R- (accessory for PZ-) x ø..... Operation mode selector switch (Receiver) Sensitivity adjustment trier (Transmitter) Attachment mounting trier. Centre of light. ø. dia.. x Cable length m Mounting bracket (standard) Material: Stainless steel.... x M screw Reflector R- (optional) OP- x ø. Indicator x ø. Mounting hole Flat nut (standard) t=. Material: Stainless steel Two nuts shown above are supplied for the thrubeam type *Supplied screws: M x : Material: Stainless steel S-P S-P S-P Head. A B x M C 7 D x ø7 mounting hole ø Supplied screw... Supplied plate nut A B C D t= x M x... Connector.. Indicator Reflector R- (optional) OP-7... PRO reflection tape (optional) OP-... Supplied screws. () Lock x ø. Safety Light Curtains Proximity Pressure Prograable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide 7 7