User manual OMRON E2E DATASHEET

[. . . ] Oil resistant Cylindrical Proximity Sensor (Automotive) E2E Designed and tested for Automotive assembly lines · tested oil resistance on commonly used lubricants in Automotive industry Ordering Information DC 2-wire/Pre-wired Models - enhanced oil resistant PUR/PE cable Self-diagnostic output function No Shielded Size M8 M12 M18 M30 Sensing distance NO 2 mm 3 mm 7 mm 10 mm E2E-X2D1-U E2E-X3D1-U E2E-X7D1-U E2E-X10D1-U E2E-X2D2-U E2E-X3D2-U E2E-X7D2-U E2E-X10D2-U Model NC DC 2-wire/Pigtail-connector - enhanced oil resistant PUR/PE cable Self-diagnostic output function No Shielded Size M8 M12 M18 M30 Sensing distance NO 2 mm 3 mm 7 mm 10 mm E2E-X2D1-M1TGJ-U 0. 3 M E2E-X3D1-M1TGJ-U 0. 3 M E2E-X7D1-M1TGJ-U 0. 3 M E2E-X10D1-M1TGJ-U 0. 3 M Model NC E2E-X2D2-M1TGJ-U 0. 3 M E2E-X3D2-M1TGJ-U 0. 3 M E2E-X7D2-M1TGJ-U 0. 3 M E2E-X10D2-M1TGJ-U 0. 3 M DC 2-wire/Pre-wired Models - PVC cable Self-diagnostic output function Yes Shielded Size M12 M18 M30 Unshielded M12 M18 M30 No Shielded M8 M12 M18 M30 Unshielded M8 M12 M18 M30 Sensing distance NO 3 mm 7 mm 10 mm 8 mm 14 mm 20 mm 2 mm 3 mm 7 mm 10 mm 4 mm 8 mm 14 mm 20 mm E2E-X3D1S (See note 1. ) E2E-X7D1S (See note 1. ) E2E-X10D1S (See note 1. ) E2E-X8MD1S (See note 1. ) E2E-X14MD1S (See note 1. ) E2E-X20MD1S (See note 1. ) E2E-X2D1-N (See notes 2 and 3. ) E2E-X3D1-N (See notes 1, 2 and 3. ) E2E-X7D1-N (See notes 1, 2 and 3. ) E2E-X4MD1 (See notes 2 and 3. ) E2E-X8MD1 (See notes 1, 2 and 3. ) E2E-X14MD1 (See notes 1, 2 and 3. ) E2E-X20MD1 (See notes 1, 2 and 3. ------------E2E-X2D2-N (See note 3. ) E2E-X3D2-N (See note 3. ) E2E-X7D2-N (See note 3. ) E2E-X4MD2 E2E-X8MD2 E2E-X14MD2 E2E-X20MD2 Model NC E2E-X10D1-N (See notes 1, 2 and 3. ) E2E-X10D2-N *1. 15 models (e. g. , E2E-X3D15-N), which are different in frequency from the above models, are available. The model number of a model with a robotics cable has the suffix "-R" (e. g. , E2E-X3D1-R). [. . . ] Before using the Proximity Sensor, make sure that this voltage is less than the load reset voltage. The AC 2-wire Proximity Sensor cannot be connected to any card-lift-off relay (e. g. , the G2A) because contact vibration of the relay will be caused by the leakage current and the life of the relay will be shortened. DC 2-wire Models Connect a bleeder resistor as the bypass for the leakage current so that the current flowing into the load will be less than the load reset current. Load Loads with Large Inrush Currents (E2E-X@T@) Connecting a load that has a large inrush current (e. g. , a lamp or motor) may result in a malfunction due to the inrush current causing a load short-circuit. Bleeder resistor R Countermeasures Against Leakage Current AC 2-wire Models Connect a bleeder resistor as the bypass for the leakage current so that the current flowing into the load will be less than the load reset current. As shown in the following diagram, connect the bleeder resistor so that the current flowing into the Proximity Sensor will be 10 mA minimum and the residual voltage imposed on the load will be less than the load reset voltage. Load Bleeder resistor R VAC power supply VS Refer to the following to calculate the bleeder resistance and the allowable power of the bleeder resistor. R VS/(iR ­ iOFF) (k) P > VS2/R (mW) P: The allowable power of the bleeder resistor. (The actual power capacity of the bleeder resistor must be at least a few times as large as the allowable power of the bleeder resistor. ) Leakage current of Sensors (mA) iR: iOFF: Release current of load (mA) The following resistors are recommended. 12 VDC (supply voltage): A resistor with a resistance of 15 k maximum and an allowable power of 450 mW minimum 24 VDC (supply voltage): A resistor with a resistance of 30 k maximum and an allowable power of 0. 1 W minimum Refer to the following to calculate the bleeder resistance and the allowable power of the bleeder resistor. R VS/(10 ­ I) (k) P > VS2/R (mW) 22 Inductive Sensors Connection to a PLC Required Conditions Connection to a PLC is possible if the specifications of the PLC and the Proximity Sensor satisfy the following conditions. The ON voltage of the PLC and the residual voltage of the Proximity Sensor must satisfy the following. The OFF current of the PLC and the leakage current of the Proximity Sensor must satisfy the following. IOFF Ileak (If the OFF current is not listed in the specifications, take it to be 1. 3 mA. ) 3. The ON current of the PLC and the control output (IOUT) of the Proximity Sensor must satisfy the following. IOUT(min) ION IOUT(max) The ON current of the PLC will vary, however, with the power supply voltage and the input impedance used as shown in the following equation. ION = (VCC ­ VR ­ VPC )/RIN Example In this example, the above conditions are checked for when the PLC model is the C200H-ID212, the Proximity Sensor model is the E2EX7D1-N, and the power supply voltage is 24 V. ION = [VCC (20. 4 V) ­ VR (3 V) ­ VPC (4 V)]/RIN (3 k) 4. 5 mA Therefore, IOUT(min) (3 mA) ION (4. 5 mA): OK VON: ON voltage of PLC (14. 4 V) ION: ON current of PLC (typ. 7 mA) IOFF: OFF current of PLC (1. 3 mA) RIN: Input impedance of PLC (3 k) VPC: Internal residual voltage of PLC (4 V) VR: Output residual voltage of Proximity Sensor (3 V) Ileak: Leakage current of Proximity Sensor (0. 8 mA) IOUT: Control output of Proximity Sensor (3 to 100 mA) VCC: Power supply voltage (PLC: 20. 4 to 26. 4 V) Values in parentheses are for the following PLC model and Proximity Sensor model. PLC: C200H-ID212 Proximity Sensor: E2E-X7D1-N Precautions for AC/DC 2-wire Proximity Sensors in Operation Connection Model DC 2-wire Connection type AND (serial connection) Method Description The Sensors connected together must satisfy the following conditions. of Sensors VR: Residual voltage of each Sensor VS: Supply voltage If each Proximity Sensor is not supplied with the rated voltage and current, the indicator will not be lit properly or unnecessary pulses may be output for approximately 1 ms. OR (parallel connection) Correct Load Correct Load The Sensors connected together must satisfy the following conditions. of Sensors i: Leakage current of each Sensor If the MY Relay, which operates at 24 VDC, is used as a load for example, a maximum of four Proximity Sensors can be connected to the load. AC 2-wire AND (serial connection) Incorrect Load If 100 or 200 VAC is imposed on the Proximity Sensors, VL (i. e. , the voltage imposed on the load) will be obtained from the following. of Proximity Sensors) (V) Therefore, if VL is lower than the load operating voltage, the load will not operate. Correct Load A maximum of three Proximity Sensors can be connected in series provided that the supply voltage is 100 V minimum. Load Vs × 100 V E2E 23 Model AC 2-wire Connection type OR (parallel connection) Method Description In principle, more than two Proximity Sensors cannot be connected in parallel. Load Incorrect A B Correct A B Load VAC power supply VS Provided that Proximity Sensor A does not operate with Proximity Sensor B simultaneously and there is no need to keep the load operating continuously, the Proximity Sensors can be connected in parallel. In this case, however, due to the total leakage current of the Proximity Sensors, the load may not reset properly. It is not possible to keep the load operating continuously with Proximity Sensors A and B in simultaneous operation to sense sensing objects due to the following reason. [. . . ] Two clamping nuts Toothed washer Note: D Models: Operation indicator (red), setting indicator (green) E, F, Y Model: Operation indicator (red) Note: D Models: Operation indicator (red), setting indicator (green) E, F, Y Model: Operation indicator (red) 28 Inductive Sensors M8 Connector Models (Shielded) Fig. 13 M8 × 1 Indicator (See note. ) Two clamping nuts Toothed washer M8 × 1 Indicator (See note. ) Two clamping nuts Toothed washer Note: D models: Operation indicator (red), setting indicator (green) E, F model: Operation indicator (red) Note: D models: Operation indicator (red), setting indicator (green) E, F model: Operation indicator (red) Pre-wired M12 Connector Models Fig. 13 3 30 26 8 7 XS5 connector Smart Click M8 × 1 Toothed washer Indicator (See note. ) Two clamping nuts 4-dia. 17 4 38 33 10 9 XS5 connector Smart Click M12 × 1 M12 × 1 Operation Indicator (red), setting indicator (green) Two clamping nuts Toothed washer 4-dia. [. . . ]