Inductive Proximity Sensor E2CA Linear Output Proximity Sensor with High-accuracy Resolution Resolution is 0.05% of the maximum sensing distance. The model with a sensing distance of 1.2 mm ensures a resolution of 0.6 om. Models with response frequencies ranging from 10 to 3 kHz are available. The M30-size model ensures a sensing distance of 10 mm. Satisfies IEC IP67 requirements, thus detecting the displacement of metal objects without being influenced by water and oil spray. The E2CA has a standard linear output of 4 to 20 mA and connects to the Linear Discrimination Unit, Digital Panel Meter, and I/O Unit of the Programmable Controller. The E2CA’s compact amplifier can be plugged into surface mounting sockets thus greatly reducing wiring effort and ensuring easy mounting. Ordering Information Shield Shielded Size Response frequency Sensor Unit Amplifier Unit Sensing g distance di t (S (Sn)) Linear output M8 0.3 to 1.5 mm 10 kHz 1 kHz E2CA-XIR5A E2CA-AL4C E2CA-AN4C M12 0.4 to 2 mm 10 kHz 800 Hz E2CA-X2A E2CA-AL4D E2CA-AN4D M18 1 to 5 mm 5 kHz 350 Hz E2CA-X5A E2CA-AL4E E2CA-AN4E M30 2 to 10 mm 3 kHz 100 Hz E2CA-X10A E2CA-AL4F E2CA-AN4F Switching output DC AC 1 E2CA E2CA Application Examples Detection of Metals on Other Metals Counts the number of gear teeth. Detects mounting screws, rivets, and soldering condition Detection of Loosened Screws Discrimination of Materials E2CA Amplifier Unit E2CA Amplifier Unit E2CA E2CA Brass Improper screwing Iron E2CA Amplifier Unit K3TS Loosened Copper K3TS K3TS Output Output Output Measurement of Sheet Angles Measurement of Sheet Thickness Measures leaned press molds and elevated boards E2CA Amplifier Unit E2CA E2CA Measurement of External Dimensions E2CA Amplifier Unit E2CA Metal plate E2CA Amplifier Unit K3TS K3TS E2CA Amplifier Unit Sensing Head E2CA Output Discrimination of Shapes Measurement of Object Deformations Detects top and bottom sides of metal caps and surface and back sides of nuts E2CA Amplifier Unit E2CA E2CA E2CA Amplifier Unit K3TS K3TS Output Output 2 Output K3TS Alarm output Metal object E2CA E2CA Specifications Sensor model Item E2CA-X1R5A Amplifier model E2CA-AN4C Supply voltage (operating voltage range) 100 to 240 VAC 50/60 Hz (90 to 264 VAC) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. 100 to 240 VAC 50/60 Hz (90 to 264 VAC) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. Current consumption 60 mA max. 70 mA max. 60 mA max. 70 mA max. Sensing object Ferrous metal Sensing range (with standard sensing object) 0.3 to 1.5 mm (8 x 8 x 1 mm iron) Linear output p characteristics h t i ti Resolution 0.05% FS Linearity ‒2% FS ‒1.5% FS Response frequency (see note 1) 10 kHz (--1 dB) 10 kHz (--1 dB) Differential travel 2% to 5% of rated sensing distance Response frequency (see note 2) 1 kHz Switching g output p characteristics h t i ti Sensitivity adjustment adjust e t f function i E2CA-AL4C E2CA-X2A E2CA-AN4D E2CA-AL4D 0.4 to 2 mm (12 x 12 x 1 mm iron) 800 Hz Sensitivity adjustment Adjustments of switching output within sensing range (switching output) Linear output 4 mA 4-mA adjustment at 20% of rated sensing distance current 20 mA 20-mA adjustment at rated sensing distance adjustment Output Linear output (see note 3) 4 to 20 mA (with permissible load resistance of 0 to 300 Y) Switching output 100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V Switching output mode Normally open or normally closed (selectable with selector on front panel) Cord length compensation 3 or 5 m (selectable with selector on front panel) Indicators POWER, SPAN (linear range), and OPER (switching output) indicators Ambient temperature Operating: --25flC to 70flC (Sensor) and --10flC to 55flC (Amplifier) with no icing Ambient humidity Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier) Temperature influence ‒10% FS max. of linear output current at 23flC in the rated ambient operating temperature range of the Sensor and Amplifier Units Voltage influence DC power supply model: ‒0.5% FS max. of linear output current at a voltage between 80% and 120% of the rated power supply voltage AC power supply model: ‒0.5% FS max. of linear output current at a voltage between 90% and 110% of the rated power supply voltage Insulation resistance 50 MY min. (at 500 VDC) between the case and current carry parts Dielectric strength DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts and case AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts and case Vibration resistance Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Sensor (destruction): 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions Amplifier (destruction): 100 m/s2 (approx. 10G) 3 times each in X, Y, and Z directions Degree of protection Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof) Cord length Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord Weight g ( (see note t 4) Sensor Approx. 40 g Amplifier Approx. 250 g Material Case Brass Sensing surface ABS resin Cord Polyethylene Approx. 140 g Approx. 250 g Approx. 140 g 3 E2CA E2CA E2CA-X5A Sensor model Item E2CA-AN4E Supply voltage (operating voltage range) 100 to 240 VAC 50/60 Hz (90 to 264 VAC) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. 100 to 240 VAC 50/60 Hz (90 to 264 VAC) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. Current consumption 60 mA max. 70 mA max. 60 mA max. 70 mA max. Sensing object Ferrous metal Sensing range (with standard sensing object) 1 to 5 mm (18 x 18 x 1 mm iron) Linear output p characteristics h t i ti Resolution 0.05% FS Linearity ‒1.5% FS ‒2% FS Response frequency (see note 1) 5 kHz (--1 dB) 3 kHz (--1 dB) Differential travel 2% to 5% of rated sensing distance Response frequency (see note 2) 350 Hz Switching g output p characteristics h t i ti Sensitivity adjustment adjust e t f function i E2CA-AL4E E2CA-X10A Amplifier model E2CA-AN4F E2CA-AL4F 2 to 10 mm (30 x 30 x 1 mm iron) 100 Hz Sensitivity adjustment Adjustments of switching output within sensing range (switching output) Linear output 4 mA 4-mA adjustment at 20% of rated sensing distance current 20 mA 20-mA adjustment at rated sensing distance adjustment Output Linear output (see note 3) 4 to 20 mA (with permissible load resistance of 0 to 300 Y) Switching output 100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V Switching output mode Normally open or normally closed (selectable with selector on front panel) Cord length compensation 3 or 5 m (selectable with selector on front panel) Indicators POWER, SPAN (linear range), and OPER (switching output) indicators Ambient temperature Operating: --25flC to 70flC (Sensor) and --10flC to 55flC (Amplifier) with no icing Ambient humidity Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier) Temperature influence ‒10% FS max. of sensing distance at 23flC in the rated ambient operating temperature range of --10flC and 40flC Voltage influence DC power supply model: ‒0.5% FS max. of linear output current at a voltage between 80% and 120% of the rated power supply voltage AC power supply model: ‒0.5% FS max. of linear output current at a voltage between 90% and 110% of the rated power supply voltage Insulation resistance 50 MY min. (at 500 VDC) between the case and current carry parts Dielectric strength DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts and case AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts and case Vibration resistance Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Sensor (destruction): 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions Amplifier (destruction): 100 m/s2 (approx. 10G) 3 times each in X, Y, and Z directions Degree of Protection Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof) Cord length Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord Weight g ( (see note t 4) Sensor Approx. 60 g Amplifier Approx. 250 g Material Case Brass Sensing surface ABS resin Cord Polyethylene Note: Approx. 160 g Approx. 140 g Approx. 250 g Approx. 140 g 1. This is a frequency decreasing the level of linear output current by 1 dB. 2. This is a response frequency measured in accordance with CENELEC standards. 3. The maximum load impedance of the E2CA-AL4 is 150 Y at a supply voltage of 12 V. 4. The weight includes the 3-m-long cord. The weights of the Amplifiers do not include connecting sockets. 4 E2CA E2CA Engineering Data Sensing Distance vs. Output Current (Typical) Sensing distance (mm) E2CA-X10A Output current (mA) E2CA-X5A Output current (mA) Output current (mA) E2CA-X2A Sensing distance (mm) Output current (mA) E2CA-X1R5A Sensing distance (mm) Sensing distance (mm) Sensing Object Size vs. Linearity (Typical) Sensing distance X (mm) Material: Iron t=1 Sensing distance X (mm) E2CA-X10A Linearity (% of full scale) E2CA-X5A Linearity (% of full scale) Linearity (% of full scale) Sensing object material: Iron t=1 Linearity (% of full scale) E2CA-X2A E2CA-X1R5A Material: Iron t=1 Sensing distance X (mm) Sensing object material: Iron t=1 Sensing distance X (mm) Column Diameter vs. Linearity (Typical) f 8 dia. 10 dia. Flat plate Sensing distance X (mm) f Material: Iron 6 dia. 10 dia. 20 dia. 30 dia.40 dia. Flat plate Sensing distance X (mm) E2CA-X10A 10 dia. Material: Iron 20 dia. 30 dia. 40 dia. 60 dia. 100 dia. Flat plate Sensing distance X (mm) Linearity (% of full scale) Sensing object material: Iron E2CA-X5A Linearity (% of full scale) E2CA-X2A Linearity (% of full scale) Linearity (% of full scale) E2CA-X1R5A Sensing object material: Iron f 140 dia. 220 dia. Flat plate Sensing distance X (mm) 5 E2CA E2CA Nomenclature Selector and Adjuster Settings (1) Operation Mode Selector OUTPUT NO NC The switching output transistor turns ON when there is sensing object detection. POWER indicator (red LED) ON when power is supplied to the E2CA. NC The switching output transistor turns ON when there is no sensing object detection. OPER indicator ON when the switching output of the POWER indicator is detected. (ON when detected, OFF when not detected) OUTPUT NO SPAN indicator Indicates the linear range of green LED output current. (1) Operation mode selector Linear output current adjuster (20 mA) (2) Cord length compensation selector Linear output current adjuster (4 mA) SENSITIVITY adjuster Used to adjust the sensing distance of switching output. CABLE (2) Cord Length Compensation Selector 3m Set the selector to 3 m or 5 m according to the length of the Sensor cord in use. 5m A cord length of 3 m is selected. 5m A cord length of 5 m is selected. CABLE 3m Linear Output Adjustment (LINEARITY Adjuster) Step Positioning 1 2 --- 20% of rated sensing distance 3 Rated sensing distance Standard object Standard object LINEARITY adjuster --- --- 4 mA Adjustment procedure Connect an ammeter across terminals 1 and 2. Shielded cord P2CF-11 Switching output (photocoupler output) E2CA-Aj4j Amplifier Unit P2CF-11 Front-connecting Socket Note: 6 Remarks --- This illustration shows the Sensor Unit connected to the Amplifier Unit with the P2CF-11 Front-connecting Socket mounted. Place the standard object at 20% of the rated sensing distance away from the Sensor Unit. Turn the 4 mA LINEARITY adjuster slowly clockwise (the output current is increased) or counterclockwise (the output current is decreased) to set the output current to 4 mA. (SPAN indicator is ON.) 20 mA Fasten the standard object at the rated sensing distance. Turn the 20-mA LINEARITY adjuster slowly clockwise (the output current is increased) or counterclockwise (the output current is decreased) to set the output current to 20 mA. (SPAN indicator is ON.) To further improve the adjustment accuracy, set again the position of the standard object in the order of steps 2 and 3. Perform minute adjustment of the output current. E2CA E2CA Compensation of Cord Length Difference Sensitivity (Distance) Adjustment Detecting condition Set the CABLE selector to the required position according to the length of the cord being used (3 m or 5 m). Standard target (See Note at below right.) 3-m cord CABLE Standard object 3m 5m CABLE SENSITIVITY adjuster 3m Low 5-m cord 5m High SENSITIVITY Adjustment procedure Place the standard object at the specified position. Slowly turn the SENSITIVITY adjuster clockwise (toward “High”) and stop it when the OPER. indicator illuminates. Move the object to confirm that the OPER. indicator is ON when the object is at the specified position and that it is OFF when the object is moved away from that position. Operation Output Circuit Timing Chart 100 % Distance (Rated distance) 20 % of object (Set distance) Linear output: 4 to 20 mA 100 mA max. 2.2 Y Switching output (+) ON SPAN indicator OFF Main circuit Comparator 20 mA Linear output 47 V 4 mA Switching output (--) Mode selector NO Transistor output (switching output) ON NC 0V OFF ON OPER. indicator *SENSITIVITY adjuster OFF Connections Connections between Sensor Units and Amplifier Units E2CA-AN4j+Sensor Unit E2CA-AL4j+Sensor Unit Sensor Unit Sensor Unit Shielded cord White Shielded cord White Blue Blue Switching output (Transistorized photocoupler output) E2CA-AL4j Amplifier unit P2CF-11 Front-connecting Socket E2CA/AN4j Amplifier unit P2CF-11 Front-connecting Socket 0 V 12 to 0 V (+) 24 VDC Linear output Note: Switching output (Transistorized photocoupler output) 100 to 240 VAC 0 V (+) Linear output The above illustrations show the terminal arrangement viewed from the rear of the socket, which is coupled to the Amplifier Unit. 7 E2CA E2CA Connection of Resistive Load: E2CA-AN4j+Sensor Unit Connection to Z4W-DD1C Synchronous sensor Sensor Unit (E2CA) Shielded cord Shielded cord White Blue 4 to 20 mA Blue White 0V E2CA-AN4j Amplifier +12 V E2CA-AN4j Amplifier P2CF-11 Front-connecting Socket (+) Comparator, microprocessor, etc. 100 to 200 VAC Linear output 0V Note: 0V Blue Output Black +12 V Brown 4 to 20 mA 0 V Z4W-DD1C R (see note) 100 mA, 30 VDC max. Resistance R when E2CA-AL4 is used: 300 Y max. at 24 V/150 Y max. at 12 V Resistance R when E2CA-AN4 is used: 300 Y max. 100 to 240 VAc, 50/60 Hz Connection to K3TX-AD22 Connection to K3TS-SD12 Sensor Unit Sensor Unit Shielded cord Blue White Shielded cord White E2CA-AL4j Amplifier P2CF-11 Front-connecting Socket Blue E2CA-AL4j Amplifier P2CF-11 Front-connecting Socket K3TS 12 to 24 VDC CQM1 Linear Sensor Interface Unit Connection to CQM1-LSE Sensor Shielded cord White Blue E2CA-AL4j Amplifier P2CF-11 Front-connecting Socket 4 to 20 mA CQM1-LSE01 8 K3TX 12 to 24 VDC E2CA E2CA Dimensions Note: All units are in millimeters unless otherwise indicated. Sensor Units E2CA-X1R5A E2CA-X2A 2.8 dia. 2.8 dia. Shielded cord Standard length: 3 m E2CA-X5A Shielded cord Standard length: 3 m E2CA-X10A 4.1 dia. 5.5 dia. Shielded cord Standard length: 3 m Shielded cord Standard length: 3 m Amplifier Units E2CA-AjC/F E2CA-AjD/E 48 x 48 44.8x44.8 Mounting Hole Dimensions Model E2CA-X1R5A E2CA-X2A E2CA-X5A E2CA-X10A F (mm) 8.5 +0.5 0 dia. +0.5 0 dia. +0.5 0 dia. +0.5 0 dia. 12.5 18.5 30.5 9 E2CA E2CA Accessories (Order Separately) Mounting Fixture (Y92E-B Series) Four types of exclusive resin mounting fixtures are optionally available. Select the type suited to the dimensions of the Sensor. Y92F-30 Adapter for Flush Mounting Y92A-48B Protective Cover Mounting panel Y92F-30 Adapter for flush mounting The protective hard plastic cover shields the front panel, particularly the setting section, from dust, dirt, and water drip. P3GA-11 Back-connecting Socket Y92A-48B Connecting Sockets for E2CA-Aj4j P2CF-11 Front-connecting Socket (Track Mounted) Terminal Arrangement (Top View) Mounting Holes Eleven, M3.5 & 7.5 sems screws Two, 4.5-dia. holes Note: 70 max. The Socket can be mounted to a track. Two, 4.5-dia. hole 50 max. 31.2 max. P3GA-11 Back-connecting Socket Terminal Arrangement (Bottom View) 27 dia. 45 25.6 45 4.5 10 16.3 6.2 E2CA E2CA PL11 Back-connecting Socket (Solder Terminal) Terminal Arrangement (Bottom View) Mounting Holes Two, 3.5 dia. or M3 socket mounting holes Two, 2 dia. Two, 3.5 dia. or M3 socket mounting holes 51 max. 30 dia. 31-dia. hole 35 max. Approx. 20.5 Precautions Correct Use Mounting Do not tighten the nut of the Sensor with excessive force. Be sure to use the washer with the nut when tightening. Mutual Interference If the Sensors are mounted in parallel or face-to-face, be sure to keep the clearance between the Sensors as specified in the table. Model/Distance Model Tightening torque E2CA-X1R5A 1.96 N S m (20 kgf S cm) E2CA-X2A 5.9 N S m (60 kgf S cm) E2CA-X5A 14.7 N S m (150 kgf S cm) E2CA-X10A 39.2 N S m (400 kgf S cm) Note: The above tightening torque applies when a toothed washer is used. Effects of Surrounding Metal Be sure to separate the Sensor from surrounding metal objects as shown in the following illustration if the Sensor is embedded. A B E2CA-X1R5A 30 20 E2CA-X2A 30 20 E2CA-X5A 50 35 E2CA-X10A 100 75 Sensor Cord The Sensor cord must be either 3 or 5 m. Do not cut or extend the Sensor cord, otherwise the E2CA may not provide the specified output. Mounting the Amplifier Unit When mounting more than one amplifier vertically, it is recommended that a margin of approximately 20 mm above and below the Socket be provided in consideration of the space required by the hook of the Socket. d dia. Hook Duct Model/Distance d D m E2CA-X1R5A 0 (8) 0 4.5 E2CA-X2A 0 (12) 0 6 E2CA-X5A 0 (18) 0 15 E2CA-X10A 0 (30) 0 30 Note: P2CF-11 Panel The values for “d” indicate distances for the outer diameter of the shielded models. 11 E2CA E2CA Enclosed Mounting If the Y92F-30 Adapter is used, insert the E2CA into the square hole from the front side of the panel and slide the Y92F-30 onto the E2CA from the rear side of the E2CA. Then press the Y92F-30 so that the space between the Y92F-30 and the panel is reduced as much as possible. Finally, secure the Y92F-30 with screws. Panel Y92F-30 Adapter Removing the Amplifier Unit If the Y92F-30 is used, loosen the screws of the Y92F-30, spread out the hooks, and remove the Y92F-30. P3G-11 Back-mounting Socket Others The accuracy of the E2CA will vary with the on-site environment. The resolution, temperature characteristics, and voltage characteristic linearity are especially affected. Therefore, keep the on-site environment as suitable for the E2CA as possible. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. D77-E1-1 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Sensors Division Sensing Devices and Components Division H.Q. 28th Fl., Crystal Tower Bldg. 1-2-27, Shiromi, Chuo-ku, Osaka 540-6028 Japan Phone: (81)6-949-6012 Fax: (81)6-949-6021 12 Printed in Japan 0398-0.5M (0398) a