DC-Wire Aluminum-Chip Resistant Cylindrical Proximity Sensors FL7M-ASeries Detects workpieces reliably even if aluminum or cast iron chips accumulate on the sensing head. DC-wire proximity sensors can be directly connected to programmable controllers and units. This reduces wiring costs Firefly indicator lamp can be checked even from the rear Tough IP67 seal Certified EN-compliant ORDER GUIDE Preleaded types Exterior Appearance Size (O.D.) Sensing distance Operation mode Setting indicator Oil resistant cable (cable length m) M M8 M3 mm mm 8mm FL7M-J6AD FL7M-K6A FL7M-J6AD FL7M-K6A FL7M-8J6AD FL7M-8K6A Preleaded connector types Exterior Appearance Size (O.D.) Sensing distance Operation mode Setting indicator Oil resistant, flexible cable Connector (cable length 3cm) M M8 M3 mm mm 8mm 3 3 FL7M-J6AD-CN3 FL7M-K6A-CN3 FL7M-J6AD-CN3 FL7M-J6AD-CN3A FL7M-K6A-CN3 FL7M-8J6AD-CN3 FL7M-8J6AD-CN3A FL7M-8K6A-CN3 Accessories (sold separately) Name Appearance O.D. Mounting bracket Protective cover Spatter-guarded protective cover For M For M8 For M3 For M For M8 For M3 For M8 For M For M8 For M3 FL-PA FL-PA8 FL-PA3 FL-PA FL-PA8 FL-PA3 FL-PA8W FL-PAW FL-PA8W FL-PA3W
SPECIFICATIONS FL7M-J6AD(-CN3), FL7M-K6A(-CN3) FL7M-J6AD(-CN3), FL7M-K6A(-CN3) FL7M-8J6AD(-CN3), FL7M-8K6A(-CN3) Actuation method Rated sensing distance Usable sensing distance Standard target object Differential travel Rated supply voltage Operating voltage range Leakage current Control outpu Operating frequency Temperature drift Supply voltage drift s Operating temperature Insulation resistance Dielectric strength Vibration resistance Shock resistance Protective structure Weight (preleaded type) Circuit protection Wiring method Case Sensor Material Connector Holder Contact ±.mm to.mm x x mm iron High-frequency oscillation (shielded) ±.mm to.8mm 3 x 3 x mm iron % max. of sensing distance /Vdc to 3Vdc.55mA max. Switching current 3 to ma, voltage drop 3V max., output dielectric strength 3Vdc 5Hz Hz 6Hz ± % max. for the 5 to +7 C range 8 ±.8mm to 5.6mm 5 x 5 x mm iron ± % max. of sensing distance for the to +5 C range, or ± % for the 5 C to +7 C range when 5 C is taken as standard temperature ±.5% max. of sensing distance with ± 5% voltage fluctuation, taking rated supply voltage as standard voltage type: Operation indication: lights (orenge or green) at output ON Setting indication: lights (green) in stable sensing area type: Operation indication: orenge light goes out in sensing area 5 to +7 C 5MΩmin. (at 5Vdc) Vac, 5/6Hz for minute to 55Hz,.5mm peak-to-peak amplitude, hrs each in X, Y and Z directions 98m/s times each in X, Y and Z directions IP67(IEC), IP67G(JEM) Approx. 6g Approx. 3g Approx. 3g Surge absorption, load short-circuit protection, reverse connection protection Preleaded, preleaded connector Ni-plated brass PBT Polyester elastomer Glass-lined polyester resin Gold-plated brass USING THE SETTING INDICATOR The proximity sensor can be set up to detect objects reliably by bringing the sensor progressively closer to the target object and installing the sensor at the point where the indicator lamp ( indication) changes from red to green. Operating point Max. 8% of operating point FL7M indication Indicator lamp Indicator lamp Non-sensing area Out Unstable sensing area Orang Stable sensing area Green indication Control output Control output Orang Out Out *When the target object is made of a different material (such as aluminum, copper or stainless steel) from the standard target object (iron), the distance at which the indicator lamp changes color is shorter than the 8% maximum.
Sensing distance SENSING AREA (typical) Standard target object with standard 5 x 5 x mm iron target object with standard 3 x 3 x mm iron target object with standard x x mm iron target object Sensing distance X (mm) Sensing head diameter SENSING DISTANCE ACCORDING TO MATERIAL AND SIZE OF OBJECT (typical) Sensing distance x (mm) SPCC SUS3 SUS3 Brass Aluminum Copper Sensing distance x (mm) SPCC SUS3 Brass Aluminum SUS3 Copper Size of one side of target object d (mm) Size of one side of target object d (mm) SPCC SUS3 Brass Sensing distance x (mm) Aluminum SUS3 Copper Size of one side of target object d (mm) 3
VOLTAGE DROP CHARACTERISTICS (typical) Voltage drop (V) current (ma) LEAKAGE CURRENT CHARACTERISTICS (typical) Leakage current (ma) Supply voltage (V) EXTERNAL DIMENSIONS (unit: mm) Preleaded type Hexagonal nut Hexagonal nut min. min. (oil-resistant:.3mm, 7/. dia., -core), dia... Cap color: blue. (oil-resistant:.5mm, /.8 dia., -core), dia. 5.7. Cap color: blue. Hexagonal nut min. (oil-resistant:.5mm, /.8 dia., -core), dia. 5.7. Cap color: blue.
Preleaded Connector type -CN3 -CN3 Hexagonal nut connector Hexagonal nut connector dia. dia. 3 min. 3 min. Cap color: blue. Cap color: blue -CN3 Hexagonal nut connector dia. 3 min. Cap color: blue MOUNTING BRACKET (sold separately) Mounting brackets are made of polyacetal resin. Two screws and two washers are provided for each bracket. FL-PA8 and FL-PA3 screw holes are oblong. Dimensions (mm) A B C D E F FL-PA 5 dia. 36 6 FL-PA8 3/3 5 3 8dia. 5 7.5 FL-PA3 /5 5 5 3dia. 6 G 9.5.5.5 Screw size Dia. M M5 M5 Neck 5 35 55 Allowable tightening torque of bracket screws FL-PA FL-PA8 FL-PA3 Max. torque (N m).98.5.5 PROTECTIVE COVER (sold separately) Protective covers made of polyacetal resin are available for shielded models. Select a model according to the sensor's external dimensions. FL-PA FL-PA8 FL-PA3 A dia. dia. 33dia. Dimensions (mm) B 5 6 8 C.5.5.5 D M x M8 x M3 x.5 5
SPATTER-GUARDED PROTECTIVE COVER (sold separately) Spatter-guarded protective covers made of fluorine resin and designed especially for shielded sensors are available. Select a model according to the sensor's external dimensions. C A B D FL-PAW FL-PA8W FL-PA3W Dimensions (mm) A B C D 5dia. 5.7 M x dia. 6.7 M8 x 3dia. 8.5 M3 x.5 WIRING DIAGRAMS Preleaded type Preleaded connector type (type) Brown Main circuit to 3Vdc Main circuit to 3Vdc Blue Preleaded connector type ( : CN3 type) Preleaded connector type ( : CN3A type) Main circuit to 3Vdc Main circuit to 3Vdc The load may be connected to either pole. The LED operates normally during a load short circuit, so check the wiring if the output is wrong. Fasten connectors tightly by hand. CONNECTOR SPECIFICATIONS * Item Insulation resistance Dielectric strength Initial contact resistance Mating/unmating force Mating cycles Connector nut tightening torque Cable pullout strength Vibration resistance Impact resistance Protective structure Ambient operating temperature Ambient storage temperature Ambient operating humidity Material Specifications Max. MΩ(by 5Vdc megger),5vac for minute (between contacts, and between contact and connector housing) Max. mω (with 3A current to connected male and female connectors. Semiconductor lead-specific resistance not included.). to. N per contact 5 Min..8N m* Min. N to 55Hz,.5mm peak-to-peak amplitude, for hours each in X, Y and Z directions 3m/s, 3 times each in X, Y and Z directions IP67 to +7 C to +8 C Max. 95% RH Contacts: Gold-plated brass Contact holder: Glass-lined polyester resin : Polyester elastomer Coupling: Ni-plated brass O-ring: NBR *: Specifications assume Yamatake male/female connectors. *: The recommended torque is. to.6n-m. If fastened poorly, the IP67 protection is lost, or looseness occurs. Fasten the connector securely by hand. 6
CABLE WITH CONNECTOR Be sure to use PA5 Series cables with connector to connect preleaded type connectors and connector type limit switches. PA5 Series cable with connector Shape Power supply Cable properties Cable length Lead colors m PA5-ISXMK-E : brown, : white, 3: blue, : black DC Oil-resistant, flexible; UL6; flame-resistant; EN-compliant 5m m 5m PA5-ISX5MK-E PA5-ILXMK-E PA5-ILX5MK-E : brown, : white, 3: blue, : black : brown, : white, 3: blue, : black : brown, : white, 3: blue, : black Preleaded connector type PA5 Series cable with connector Male Female Tightening the connector Align the grooves and rotate the fastening nut on the PA5 connector by hand until it fits tightly with the connector on the sensors side. Sensors side PA5 connector side Sensors side (male) Connector side (female) PRECAUTIONS FOR USE. Mounting. Influence of surrounding metal The allowable tightening torque varies according to the distance from the sensing face. Metal other than the target object surrounding the sensor may influence operating characteristics. Leave space between the sensor and surrounding metal as shown below. Length A (mm) A Max. tightening torque (N m) A B 3 7 5 Note: The table shows the allowable tightening torque when toothed washers (provided) are used. B Shaded areas indicate surrounding metal other than the target object. A: Distance from sensing face of proximity sensor to mounting surface B: Distance from surface of iron plate to sensing face of proximity sensor. C: Distance from surface of iron plate to center of proximity switch when A= A(mm) B(mm) C(mm) 6 9. 3.5.5 7
3. Mutual interference prevention When mounting proximity sensors either parallel to or facing each other, mutual interference may cause the sensor to malfunction. Maintain at least the distances indicated in the figures below. Parallel 9. ALUMINUM CHIPS AND CAST IRON CHIPS Generally, even if aluminum and cast iron chips are attached to or pressing against the sensing face, no signal is output. Take care, however, because under the conditions described below, a signal may sometimes be output. Facing each other 9. A(mm) B(mm) 35 7. Cautions for series or parallel connection. Series connection (AND switching circuit) When connecting two or more proximity sensors in series, erroneous output ( to 3ms) may occur without the rated current being supplied to each of the sensors. For this reason, series connection of proximity sensors is not recommended. However, if proximity sensors must be connected in series, a resistor of kω must be put in parallel to each of the sensors. Note that the maximum leakage current in a series connection will be 3.5mA. Operation lag also will occur, resulting in increased voltage drop, and the operation indicator lamp will not light. Operation lag = 8ms X (No. of sensors in series - ) Voltage drop = Voltage drop of single sensor X No. of sensors in series. Parallel connection (OR switching circuit) If two or more proximity sensors are connected in parallel, total leakage current increases according to the following formula, and may result in the load not turning OFF. (Leakage current = Leakage current of single sensor x No. of sensors in parallel) When two or more sensors in parallel turn ON, one (or more) of their operating indicators may not light up. This is normal. 3 5 Length of one side of aluminum chip.mm max..5mm approx mm max. mm min. 9., () Chip size (d) x size of sensing face (D) Dimensions FL7M-J6AD, FL7M-K6A FL7M-8J6AD, FL7M-8K6A Aluminum FL7M-J6AD OFF OFF OFF or ON ON When chip dia. is /3 or more of the sensing surface dia. (d /3 D) D(mm) 6 8 () When chips are pressed against sensing face 5. Relay loads The voltage drop of FL7M-A sensors is 3V. Pay attention to this voltage drop when using a relay load. (With Vdc relays, switching is not possible.) Chips pressed against sensing face chips 6. Operation upon power ON After the power is turned ON, it takes at most ms until the proximity sensor is ready for sensing. If the load and the proximity sensor use different power supplies, be sure to turn the proximity sensor ON before turning the load ON. 7. Influence of leakage current A minimal current flows as leakage current for operating the circuits even when the proximity sensor is OFF. Keep this in mind when turning off connected loads. 8. Minimum cable bend radius (R) The minimum bend radius (R) of the cable is 3 times the cable diameter. Take care not to bend the cable beyond this radius. Also, do not excessively bend the cable within 3mm of the cable lead-in port. 8