Model explanation of proximity switch
LM 18 30 05 N A □ / L
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1 2 3 4 5 6 7 8
| Switch category | Output form |
| Lm: Inductance type Cm: Capacitance type Sm: Hall type Am: Safety Explosion-proof type Xm: Mimic Linear type Hm: Reed type Ru: Ultrasonic type | N: Three-wire Dc NpN Output P: Three-wire Dc PnP Output L: Two-wire Dc Output : Ac Two-wire Output J: Relay Contact Output Np: NpN+PnP Double Output |
| Outward appearance code | Output state |
| □: Cylinder type F□: Angular Colum Type And Plane Installation Type | A: (no) normally Open (no) B: (nc) Normally Close (nc) C: (no-nc) normally Open-Normally Close (no+nc) Mu: Mimic Voltage Mi: Mimic Current Mui: Voltage+Current |
| Working voltage | Subsidiart functions |
| 30: 6-36VDC 310:5-24VDC 320:12-60VDC 330: 10-30VDC 340:10-55VDC 350:10-60VDC 360: 5-36VDC 20:90-250VAC 210:24-250VAC 220: 380VAC40:12-240VDC/24-240AC 50: Special voltage | T: with aviation connector Y: water proof,oil proof I: special requirement H: high temp resistance R: ring type |
| Detection distance | Long-distance |
| 01:1mm 05:5mm 10:10mm ...... | L: Long-distance |
Working priciple inductive proximity switch
Inductive proximity switch is composed of three parts:oscillator,switch circuit and magnified output circuit.The oscillator will generate an alternating electric field.When hemetal object approaches this electric field and reaches the induction distance, whirlpool will generate in metal object, resulting in attenuation of vibrati on and then stop.The changeof vibration and stop of oscillator is treated by begid stage magnified circuit and convertedto switching sign,triggering driving con-contact detection.
Current consumption of inductive proximity switch decreases proportional to the metal object distance.
Application illustration of proximity switch
1. Various location detection of machinery process center
2. Stopper detection of grinding machine
3. Arm location detection of robot
4. Inspection of the exiating of milk inside the paper package
5. Spacing detection
Dimension
Product Picture
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