KEYENCE Proximity Sensors ES series ES-M1
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 73.4°F when within 0 to 50°C 32 to 122°F 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% max.
Current/power consumption
25 mA max.
Environmental resistance
Operating temperature range
0 to 50°C 32 to 122°F *4
Operating ambient humidity
35 to 85% RH (No condensation)
Weight
Approx. 65 g (including nuts and 2-m 9.8′ 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 following 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 32 to 122˚F
11 to 16 expansion units: 0 to 45˚C 32 to 113˚F