Photoelectric Switches for Harsh Environments

Transcription

1 Photoelectric Switches for Harsh Environments HP8 Series For even harsher environments Die-cast housing for strength and shock resistance High-performance seal Resistance to the most advanced cutting oils models are available EXPLANATION OF MAJOR FUNCTIONS AND FEATURES Rugged: Die-cast housing Rugged: Shock resistant to m/s 2 Oil resistant: fluorine coating Oil resistant: Stainless steel cover Oil resistant: special sealing, IP67G Oil resistant: special cable Oil resistant: Glass lens cover

2 ABOUT OIL RESISTANCE As shown below, these photoelectric switches pass the JEM IP67G oil resistance tests for oil solution and 2 types of water-soluble cutting oil which are widely used for tooling processes. With regard to water-soluble cutting oil, the switches pass the product life test by the accelerated test method, as shown below. Classification of test oil JIS classification Details of test Name of test oil Kinematic viscosity (mm 2 /s) ( C) PH Water-insoluble cutting fluid Equivalent to type No.8 Immersion in 5 C oil for 2 hours Yushiron Cut Abas BM5 5. Water-miscible cutting fluid Equivalent to type A No. Equivalent to type A2 No. Immersion in C and 6 C oil for 2 hours each, 25 cycles ( hours) Yushiroken EC5-T Yushiroken PFS76.( ) 9.9( 2) Note: The three types of cutting oil are made by Yushiro Chemical Industry Co., Ltd. 2

3 CATALOG LISTINGS Detection method Polarized retroreflective Diffuse -scan Scanning distance.~.5m (when used with FE-RR8 or FE-RR7 or FE-RR2).77 m Configuration L-ON D-ON Sensitivity adjustment Wiring method Code length cm m cm m cm m cm m cm m cm m Power supply to Vdc Output mode NPN open PNP open NPN open PNP open NPN open PNP open Catalog listing HP8-TL HP8-TD HP8-TL-L5 HP8-TD-L5 HP8-TL-LP5 HP8-TD-LP5 HP8-TL-CN HP8-TD-CN HP8-TL-CN5 HP8-TD-CN5 HP8-TL-CN HP8-TD-CN HP8-T2L HP8-T2D HP8-T2L-L5 HP8-T2D-L5 HP8-T2L-LP5 HP8-T2D-LP5 HP8-T2L-CN HP8-T2D-CN HP8-T2L-CN5 HP8-T2D-CN5 HP8-T2L-CN HP8-T2D-CN HP8-PL HP8-PD HP8-PL-L5 HP8-PD-L5 HP8-PL-LP5 HP8-PD-LP5 HP8-PL-CN HP8-PD-CN HP8-PL-CN5 HP8-PD-CN5 HP8-PL-CN HP8-PD-CN HP8-P2L HP8-P2D HP8-P2L-L5 HP8-P2D-L5 HP8-P2L-LP5 HP8-P2D-LP5 HP8-P2L-CN HP8-P2D-CN HP8-P2L-CN5 HP8-P2D-CN5 HP8-P2L-CN HP8-P2D-CN HP8-AL HP8-AD HP8-AL-L5 HP8-AD-L5 HP8-AL-LP5 HP8-AD-LP5 HP8-AL-CN HP8-AD-CN HP8-AL-CN5 HP8-AD-CN5 HP8-AL-CN HP8-AD-CN HP8-A2L HP8-A2D HP8-A2L-L5 HP8-A2D-L5 HP8-A2L-LP5 HP8-A2D-LP5 HP8-A2L-CN HP8-A2D-CN HP8-A2L-CN5 HP8-A2D-CN5 HP8-A2L-CN HP8-A2D-CN

4 ACCESSORIES Name Configuration Description Catalog listing Compatible model 7 mm x 56 mm FE-RR2 (Scanning distance.5 to.) 7 mm x 7 mm FE-RR8 (Scanning distance.5 to.) Reflector for polarized retroreflective model 7 mm x 7 mm.8 mm x.8 mm FE-RR7 (Scanning distance.5 to.) FE-RR5 (Scanning distance.6 to 2.7 m).8 mm x.8 mm FE-RR8 (Scanning distance.6 to 2.7 m) 8.6 mm x 29.m FE-RR2 (Scanning distance.6 to.8 m) Standard bracket Bottom-mounting L-bracket (zinc-plated steel plate) HP8-B HP8 Series Wraparound mounting bracket Wraparound horizontal mounting bracket (zinc-plated steel plate) HP8-B2 HP8 Series Detection method model with horizontal slit model with vertical slit Shape Connection method Cable length cm cm Supply voltage to Vdc Detection distance m 2m m 2m m 2m m 2m Slit width mm 2mm mm 2mm mm 2mm mm 2mm Output mode Catalog listing HP8-TD- HP8-T2D- HP8-TD-5 HP8-T2D-5 HP8-TD-6 HP8-T2D-6 HP8-TD-8 HP8-T2D-8 HP8-TD-9 HP8-T2D-9 HP8-TD-2 HP8-T2D-2 HP8-TD-2 HP8-T2D-2 HP8-TD-22 HP8-T2D-22

5 SPECIFICATIONS Catalog listing Detection method Power Power consumption Scanning distance HP8-T HP8-A Polarized retroreflective* 2 Diffuse-scan to Vdc (ripple % max.) 27 ma max. ma max. (HP-E: 6 ma max., HP-R : ma max.) 6 ma max..5 to. (when used with FE-RR8, FE-RR7, or FE-RR2 reflector).77 m Target object Opaque object 8 mm dia. min. (when used with FE-RR8, FE-RR7, or FE-RR2 reflector) Opaque object, 9 mm dia. min. Standard target object Scanning angle Differential travel Operation mode Output mode* Control output Response time Emitter Indicator Ambient light immunity Operating temperature Operating humidity Insulation resistance Dielectric strength Vibration resistance Shock resistance Protective structure Wiring method Weight Circuit protection x mm white paper (Kodak 9% reflective paper) Body:.5 to. Reflector: 2 min. 2 to 2 2% max. (at rated scanning distance) HP8- L: Light-ON. HP8- D: Dark-ON. HP8- (L /D): NPN open. HP8-2(L /D): PNP open Switching current: ma (resistive load). Output dielectric strength: V. Voltage drop: V max. (at switching current ma). Short-circuit protection function. 5 µs max. for both operation and recovery Red LED Infrared LED Infrared LED Indicators other than thru-scan emitter: orange when output ON, and green during stable light-on and light-off. emitter: orange light on power supply indicator. receiver: light-operated red indicator on front. Incandescent lamp:, lux max. Sunlight:, lux max. to +6 C (without freezing or condensation) 5 to 85% RH (without freezing or condensation) 2 MΩ min. (at 5 Vdc), Vac 5/6 Hz for one minute between electrically live metal and case to 55 Hz,.m peak-to-peak amplitude, 2 hours each in X, Y, and Z directions m/s 2 times each in X, Y and Z directions IP67 (JIS standard), IP67G (JEM standard) (excluding ) HP8- -LP5: preleaded (.), HP8- : preleaded (), HP8- -L5: preleaded (), HP8- -CN: preleaded (. m), HP8- -CN5: preleaded (.), HP8- -CN: preleaded ( m) Approx. 5g (body with cable only) Power ON malfunction prevention circuit (approx. 8 ms), wiring error protection *. An FET is used for output *2. If a polarized retroreflective model is used to detect highly reflective objects or objects that interfere with polarization, detection might be inconsistent. For details, see the handling precautions on page. When used in an environment likely to cause rust (except for cutting oil), use the HP-PA spacer (sold separately) when mounting. Catalog listing Detection method Supply voltage Current consumption Detection distance Target object HP8-T -/-6 HP8-T -9/-2 HP8-T -5/-8 HP8-T -2/-22 (with mm wide horizontal slit) (with mm wide vertical slit) (with m wide horizontal slit) (with m wide vertical slit) to Vdc (ripple voltage % max.) 27 ma max. (emitter 6 ma max., receiver ma max.) m m 2m 2m Opaque object at least 2 9 mm (H W)* 2 Opaque object at least 9 m (H W)* 2 Opaque object at least 9 mm (H W)* 2 Opaque object at least 9 mm (H W)* 2 Scanning angle to 2 for both emitter and receiver Operation mode HP8-T D: dark-on Output mode* HP8-T - : Open NPN transistor Control output Switching current ma (resistive load), output voltage V, residual voltage V max. (at ma switching current) with output short-circuit protection Response time 5 μs or less (for operation and return) Light-emitting element Infrared LED Indicator Receiver: indicator lights up orange when output ON, stable light/dark indicator lights up green Ambient light immunity Incandescent lamp, lux max., sunlight, lux max. Operating temperature - to +6 C (without freezing or condensation) Operating humidity 5 to 85%RH (without freezing or condensation) Dielectric strength 2 MΩ or more (at 5 Vdc) Withstand voltage, Vac, 5/6 Hz for min between all electrically live metal and case Vibration resistance to 55 Hz,.m peak-to-peak amplitude, 2 h each in X, Y, and Z directions Protective structure, m/s2 times each in X, Y, and Z directions Mass Approx. 2 g ( preleaded main unit only) Protection circuits Malfunction prevention upon power ON (approx. 8 ms), wiring error protection Applicable standards The EMC Directive(2 / 8 / EC) *. A FET is used for output. *2. If the emitter and receiver are installed at an angle, object detection will be affected. 5

6 OUTPUT CIRCUIT DIAGRAM (Note that a FET is used for output) emitter (NPN output type) Polarized retroreflector model receiver Diffuse-scan model (PNP output type) Polarized retroreflector model receiver Diffuse-scan model Brown Brown Brown Main circuit Blue to Vdc Main circuit Control output Black Blue Load mamax. to Vdc Main circuit mamax. Black Control output Load Blue to Vdc EXTERNAL DIMENSIONS/CONTACT ARRANGEMENT 2.. Connector Lock-ring M2x CHARACTERISTICS DIAGRAMS (typical examples) models (HP8-T ) Excess gain factor (times) Excess gain (light received over the required amount) Parallel displacement Parallel displacement (mm)

7 Polarized retroreflective models (HP8-P ) Excess gain (light received over the required amount) FE-RR8 / 7 / 2 Parallel displacement Use with FE-RR8 / 7 / 2, FE-RR8 / 7 / 2 Use with the FE-RR8 / 7 / 2, FE-RR5 / 8, or FE-RR2 FE-RR5 / 8 FE-RR2 FE-RR5 / 8, or FE-RR2 FE-RR5 / 8 FE-RR2 5 Excess gain factor (times) Parallel displacement (mm) Diffuse-scan models (HP8-A ) Excess gain (light received over the required amount) Detection area characteristics Right and left directions Up and down directions Potentiometer angle vs. scanning distance characteristics 5.2 Excess gain factor (times) Parallel displacement (mm) / 2/ / Sensitivity potentiometer position models with slit (HP8-T ) Detection area characteristic for thru-scan with mm wide slit Detection area characteristic for thru-scan with m wide slit 5 EXTERNAL DIMENSIONS (unit: mm) HP8-P Output indicator HP8-A Output indicator Max. Sensitivity adjustment potentiometer Receiver Stability indicator 29.5 M threaded thru hole (2) Receiver Stability indicator Min M threaded thru hole (2) Motion perpendicular to slit Motion parallel to slit 8 Motion perpendicular to slit Motion parallel to slit 6 Detection width (mm) Detection width (mm) Detection distance (m) Detection distance (m) Emitter 7. dia. (2) (lens diameter).2 dia. Emitter 7. dia. (2) (lens diameter).2 dia. 7

8 HP8-T (emitter: HP8-E) HP8-T (receiver: HP8-R) Power indicator Output indicator M threaded thru hole (2) Stability indicator M threaded thru hole (2) Emitter 7. dia. (lens diameter).2 dia. Connector (common) Bracket (sold separately) Bottom-mounting L- bracket (HP8-B) Reflector (sold separately) FE-RR Acrylic resin (transparent) FE-RR5 Acrylic resin (transparent) 7 ABS resin (black).6 dia. hole (2) 8 dia. (2).6 dia. hole (2) dia. (2) (.8) (.8) ABS resin (black) Receiver 7. dia. (lens diameter).2 dia. dia... Connector Lock-ring M2x (8.) 2 8 (6.2) Wraparound horizontal mounting bracket (HP8-B2) R6 2 R2.5 Center of light axis M X (2) 2.2 (.2) 2 M 62 (.) Optical axis center Material: galvanized steel plate,.6 mm thick Material: galvanized steel plate, 2. mm thick 8

9 FE-RR FE-RR dia. hole (2).2 (2).5 (base) 8 FE-RR FE-RR2 M threaded thru hole (2) 2.2± ± dia. hole (2) (2) (base) ABS resin (Black) Reflecting area Acrylic resin (Transparent) CONNECTOR WITH CABLE Be sure to use a PA5 Series with cable when connecting a preleaded or -type switch. PA5 Series with cable Shape Power supply Cord properties Cord length Catalog listing Lead colors DC Vinyl-insulated cord with high resistance to oil and vibration (UL/NFPA79 CM, CL) PA5-I SX2SK PA5-I SX5SK PA5-I LX2SK PA5-I LX5SK : brown, 2: white, : blue, : black : brown, 2: white, : blue, : black : brown, 2: white, : blue, : black : brown, 2: white, : blue, : black type PA5 Series with cable Female Tightening the Align the grooves and rotate the fastening nut on the PA5 by hand until it fits tightly with the on the switches side. Switches side PA5 side Male Switches side (male) Connector side (female) 9

10 HANDLING. Handling precautions 2. Wiring precautions Output is disabled upon power-up for 5 ms max. until the unit stabilizes. When used outdoors, use a case to ensure that the unit is not exposed to direct sunlight or rain. Applications involving strong vibration or shock should be avoided due to potential for misalignment of the optical axis. Water or oil splashed on the lens surface may cause incorrect opertion. Shield it to prevent direct splashes. Do not use where exposed to chemicals (organic solvents, acids, alkalis, etc.). Use a cover or change the mounting direction to ensure correct switch operation if there is heavy interference from ambient light. When used in a very dusty environment, be sure to take countermeasures to keep dust away from the lens surface by using a sealed case or air purging. Even when oil-resistant cable is used, do not use in a location subject to continuous splashing by water or oil, or where the unit is immersed in liquid. Ensure that the end of the cable is not subject to splashing by water or oil. Do not bend the part of the cable nearest to the main body beyond the bend radius of mm. Avoid continuous bending stress. Pulling with excessive force may break the cable. Do not apply a force of more than 5 N. Photoelectric switches are assembled with precision. Never strike with another object. Especially if the lens surface is scratched or cracked, switch performance may decline. Handle with care. To clean the lens or reflector, wipe lightly with a soft, clean cloth or cloth moistened with water. Do not use an organic solvent such as alcohol, benzene, acetone, or thinner. When multiple photoelectric switches are used close together, mutual interference may occur. After installation., check the operation carefully before use. When a polarized retroreflective model is used to detect highly reflective object or objects that disturb polarization, detection might be inconsistent. In such case, take the following countermeasures: Examples of target object that might cause faulty operation: Target object covered with a transparent film Semi-transparent target object (semi-transparent case, etc.) Mirror or highly reflective mirrorlike object Countermeasures: Mount the switch at a slight angle to the target object. Increase the distance between the switch and the target object. Lower the sensitivity setting of the switch. Use the supplied screws to mount the main body. The recommended tightening torque is.6 to 2. N m. When using screws other than the supplied ones, use screws that can be inserted at least m into the unit. Be careful when you use stainless steel screws as they are likely to cause corrosion on the main body. If the unit is used in a corrosive environment (except in an environment with cutting oil), mount the unit by inserting the HP8-PA spacer (sold separately) between the screw and the main body. Although oil proof cables are used, note that depending on the oil type (water-insoluble cutting oil and machine oil), the cables may harden or their sealing performance may deteriorate. Also, prevent the end of the cable from coming into contact with water and oil. Tightly fasten the by hand. (. to.6 N m) The lens cover is made of glass. A direct impact to the lens cover may cause it to break. Do not use the lens cover in applications where the entry of glass pieces of a broken lens would cause a problem. Operate the sensitivity adjustment potentiometer with a torque of.5 N m or less because it may be damaged by excessive torque. Do not connect the unit to an AC power supply. Doing so may cause it to rupture and/or catch fire. If the switch is used in a location where there is a lot of ambient light, block the light with a hood, or change the installation orientation of the switch and then check that the switch does not malfunction. If there is a possibility that an object or a person will collide with this unit, install a protective cover. If a cable extension is necessary, use wire at least. mm2 in cross-sectional area and at most m long. If the wires of photoelectric switch are laid in the same conduit as high-voltage or power lines, inductance may cause malfunction or damage. Isolate the photoelectric switch's cable or lay it in a separate conduit. When using a commercially available switching regulator, ground the frame ground and ground terminals. If used without grounding, switching noise may cause faulty operation. When using a load which generates an inrush current above the switiching capacity, such as a capacitive load or incandescent lamp, connect a current-limiting resistor between the load and the output terminals. Otherwise, the output short-circuit protection function may be activated.. Adjustment method When there are many target objects or detection position changes, check the switch's operation check during trial run adjustment. Be sure to check that there is no effect from light reflected from surrounding objects. model and polarized retroreflective model. Move the emitter and receiver (main body and reflector in case of a polarized retroreflective model) up, down, right, and left, and then align them in the center of the area where the green stable-operation indicator lights up. 2. Finally, with the target object in position, be sure to check that the switch correctly operates. Diffuse-scan model. Mount the photoelectric switch pointing toward the desired detection position. 2. With no target object present, slowly turn the light quantity adjustment potentiometer from MAX position toward MIN position, and find the position (called position A) where the output indicator (orange) goes off (or lights up). If the output indicator is off (on) even with the knob at MAX position, MAX position is position A.. With a target object in place, slowly turn the light quantity adjustment potentiometer from MIN position toward MAX position, and find the position (position B) where the output indicator (orange) lights up (or goes off).. Put the light quantity potentiometer in the center between A and B. B C A MIN MAX Output indicator Note: The above adjustment method is primarily for light-on operation. For dark-on operation, apply the text in parentheses.. Precautions for disposal This switch uses fluororesin and PVC resin. Never incinerate these materials, as doing so produces toxic gas. When disposing of this switch, handle it as industrial waste and dispose of it appropriately, observing local laws and regulations.