Amplifier Unit, Main Unit, NPN
Keyence ES-M1
Separate Amplifier Proximity Sensor ES series
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Specification
| Model | ES-M1*1 | |
| Type | One-line expansion system | |
| Shape | Main unit | |
| Operation mode | N.O./N.C. (switch-selectable) | |
| Timer function | 10-ms delay / timer OFF switchable*2 | |
| Output | NPN | |
| Output | Control output | NPN open collector 100 mA max. 40 V, residual voltage 1 V max. |
| Disconnection alarm output | NPN open collector 100 mA max. 40 V, residual voltage 1 V or less*3 | |
| Response time | 1 ms max. | |
| Temperature characteristics | Within ±8% of detecting distance at 23°C when within 0 to 50°C temperature range | |
| Sensitivity adjustment | 25-turn trimmer | |
| Protection circuit | Reverse power connection protection, output overcurrent protection, output surge protection | |
| Rating | Power voltage | 12 to 24 VDC, Ripple (P-P) 10 % or less |
| Current/power consumption | 25 mA max. | |
| Environmental resistance | Ambient temperature | 0 to +50 °C*4 |
| Relative humidity | 35 to 85 % RH (No condensation) | |
| Weight | Approx. 65 g (including nuts and 2-m cable) | |
| *1 The ES-M1(P)/M2(P) cannot be connected to the EH-422, 430, 440 or 290. *2 During N.O. operating configuration, the off delay timer is 10 ms. During N.C., the on delay timer is 10 ms. *3 Broken connection warning output is not available on the ES-M2(P). *4 The ambient temperature changes according to the fo llowing conditions when expansion units are added. When adding units, always attach them to a DIN rail (metal plate) and set the output current to 20 mA or less. 1 to 10 expansion units: 0 to +50 °C 11 to 16 expansion units: 0 to +45 °C |
