Self-contained EZ /EV Series Features Compact sensor head Visible output indicator built into sensor Flexible cable joint -rated housing Description Space-saving With a sensor body up to % shorter than previous models, the EZ/ EV Series proximity sensor offers high sensitivity and long detecting distance. Easy-to-see output indicator An output indicator is built into the sensor unit in such a manner that sensor operation can be easily confirmed from virtually any angle. Detecting Distance DC -wire Up to mm DC -wire Up to mm Flexible joint The cable is connected to the sensor head with a highly flexible joint that can be bent to a - degree angle, thus preventing cable wire breakage. Outstanding tightening-strength The sensor housing has a thick tough wall, enabling it to be securely tightened. This prevents the sensor from becoming loose due to vibration or shock. -wire type reduces wiring cost Wiring time and labour is reduced by one-third compared to -wire types. Wiring errors also decrease. Standard model Flexible cable guard increases seal strength. Oil- and heatresistant cable Thick stainless steel housing (EZ-M) Special engineering plastic highly resistant to oil
Self-contained EZ/EV Specifications DC -wire type Type NPN EZ-M EZ-M Shielded EZ-M EZ-M Size M M M M Detecting distance Detectable object Standard target (iron, t= mm) Hysteresis Response frequency EZ-T x x mm. mm ± %. mm ± % mm ± % mm ± % mm ±% Ferrous metals (see Characteristics for nonferrous metals) x mm x mm x mm x mm x mm % max. of detecting distance Temperature fluctuation % max. of detecting distance at + C (- to + C) O peration mode N.O./N.C. Control output ( V max.), Residual voltage: V max. P ower supply to VDC ±% to VDC ±% to VDC ±% to VDC ±% to VDC ±% C urrent consumption Enclosure rating Ambient temperature - to + C - to + C - to + C - to + C - to + C Cable length Weight (including cable and nuts) DC -wire type Type NPN m m m m m g EV-M g Shielded EV-M EV-M g EV-U g Non-shielded EV-U g EV-U Size M M M M M M D etecting distance. mm ±%. mm ±% mm ±% mm ±% mm ±% mm ±% Detectable object Standard target (iron, t= mm ) Hysteresis Response frequency Temperature fluctuation Operation mode Control output (switching capacity) Protection circuit Power supply Ratings Ferrous metals (see Characteristics for nonferrous metals) x mm x mm x mm x mm x mm x mm % max. of detecting distance % max. of detecting distance (- to + C) ± % max. of detecting distance at + C (- to + C) ±% max. of detecting distance (- to + C) N.O. (N.C. output type available for all models) - to +% (- to + C) to ma to ma to ma to ma to ma to ma Reversed polarity, surge voltage Reversed polarity, short-circuit, surge voltage to VDC Current consumption (leakage current):., Residual voltage:. V max. (with -m cable) Enclosure rating Ambient temperature - to + C - to + C - to + C - to + C - to + C - to + C Housing Cable length Weight (including cable and nuts) m m m m m m g g g g g g Photoelectric Safety Light Curtains Pressure Programmable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide
EZ/EV Self-contained Connections EZ Series: DC -wire type Black (output ): N.O. White (output ): N.C. Black White Output Output to VDC EV Series: DC -wire type to VDC Connection to built-in DC power supply type PLC (internally connected power supply) COM IN + V V PLC Connection to built-in DC power supply type PLC (externally connected power supply) Connection to PLC having no internal DC power supply + V IN COM V IN COM PLC PLC For connections indicated by the dotted lines, reverse brown and blue sensor wires. Output Circuits EZ Series DC -wire type EV Series DC -wire type* Main circuit Black (Output ) White (Output ) to VDC Main circuit Overcurrent protection circuit Current detection circuit to VDC * The M sensor does not contain shortcircuit protection or a current detection circuit. () and () in the circuit diagram shows the pin number of the connector type.
Self-contained EZ/EV Characteristics Detecting range (Typical) DC -wire type EZ-M/M/M/M EZ-M - - EV-U/U/U - - t = DC -wire type EV-M..... One side of target (mm) t = EZ-M EZ-M EZ-M EZ-M Distance (mm) EV-U EV-U Distance (mm) EV-U...... EZ-T EZ-M EZ-M - - t = t = EZ-T Distance (mm)... One side of target (mm) One side of target (mm) DC -wire type EV-M/M/M EZ-T - - Detecting distance vs. size and material of target (Typical) DC -wire type Distancia de detección (mm) EV-M... One side of target (mm) One side of target (mm)... t =... EZ-M t = t = EV-M Distance (mm) EV-M EV-M... One side of target (mm) EV-M One side of target (mm) t = One side of target (mm) Photoelectric Safety Light Curtains Pressure Programmable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide
EZ/EV Self-contained Detecting distance vs. size and material of target (Typical) DC -wire type EV-U t = One side of target (mm) EV-U t = One side of target (mm) EV-U t = One side of target (mm) Residual voltage (Typical) EV; DC -wire type Leakage current (Typical) EV; DC -wire type. Residual voltage (V) Leakage current (ma)... current (ma). Supply voltage (V) Hints on Correct Use Mounting When mounting the sensor, insert the attached toothed washer. Do not tighten beyond the torque specified in the following table. Shielded type Non-shielded type Dimension A (mm) Tightenning torque At A At B EZ-M N m max. N m max. EV-M N m max. N m max. EZ-M N m max. N m max. EZ-M N m max. N m max. EV-M, EV-U N m max. N m max. EV-M, EV-U N m max. N m max. EZ-M N m max. N m max. EV-U N m max. N m max. B B A A Wiring The sensor cable may be extended up to m (EZ Series), or m (EV Series). Surrounding metal Shielded-type sensors can be flush-mounted in a metal base. of the non-shielded type, however, should be mounted according to the guidelines given below in order to minimize interference from the surrounding metal. ød d M odel D (mm min. ) d (mm min. ) EV-U EV-U EV-U
Self-contained EZ/EV Interference When installing or more sensors of the same model face-to-face or in parallel, separate by the distance specified in the following table to prevent interference. Distance Face-to-face (mm min.) Parallel (mm min.) EZ-M EZ-M EZ-M EZ-M EV-M EV-M EV-M EV-U EV-U EV-U EZ-T Effects of leakage current With a -wire proximity sensor, a small amount of current flows (leakage current) to keep the circuit operating even when the sensor is turned OFF. (Refer to graph Leakage current characteristics.) Because of this current, a low voltage remains on the load, sometimes preventing the load from properly resetting. Before operation, check that the residual voltage is lower than the reset voltage of the load. When the load current is low When the load current is less than ma, connect a bleeder resistor to give the sensor ma or more load current. Make sure the residual voltage is less than the reset voltage of the load. I (ma) Bleeder resistor R Power supply voltage Vs Calculate the resistance (R) and rated bleeder resistor wattage (P) from the following expressions: DC -wire type: V s -.* V S R (k ) P > (mw) - I R V S : Power supply voltage (V) I: current (ma) P: Rated wattage of bleeder resistor *. V is the rated residual voltage. DC -wire type (EV Series) If a relay is connected as the load, confirm that the dropout voltage of the relay is sufficiently higher than the sensor s residual voltage of. V. (A VDC relay cannot be activated.) Protection circuits of DC -wire type (EV Series) Since this sensor incorporates short-circuit protection (not applicable to M type), direct connection of the power supply to the sensor does not cause the sensor to break down. However, the sensor will not be able to perform detection. Connect the brown cable to the positive terminal of the power supply and the blue cable to the negative terminal. This sensor incorporates a reversed-polarity protection circuit. However, reverse connection of the power supply to the sensor without a load may damage the sensor. Photoelectric Safety Light Curtains Pressure Programmable Logic Controllers Counters, Control Units High Precision Vision Systems Bar Code Readers Displacement Thrubeam Measuring Instruments Analog Sensor Controllers Video Microscope Technical Guide
EZ/EV Self-contained Dimensions DC -wire type Unit: mm EZ-M EZ-M EZ-M M x P M x P M x P Across-flats: t= ø. x. mm core Cable length: m Across-flats: t= ø. x. mm core Cable length: m Across-flats: t= ø. x. mm core Cable length: m EZ-M EZ-T M x P. Across-flats: t= ø. x. mm core Cable length: m. Operation indicator x ø. mounting hole ø. x. mm core Cable length: m DC -wire type EV-M EV-M EV-M Across-flats: t= M x P ø., x. mm core Cable length: m Across-flats: t= M x P ø., x. mm core Cable length: m Across-flats: t= M x P ø., x. mm core Cable length: m.. EV-U Across-flats: t= M x P ø., x. mm core Cable length: m EV-U Across-flats: t= M x P ø., x. mm core Cable length: m EV-U Across-flats: t= M x P. ø., x. mm core Cable length: m ø. ø. ø.