Multi-Beam Sensor
Feature
This is an infrared beam sensor for multiple beams, which is designed to detect obstacles on the doorway of elevator. It is an intelligent sensor, which assures smooth entering or exiting of people, carrier, stroller, etc., from the elevator by restricting the door from closing when it detects any obstacle on the doorway. If it is combined with a dedicated power supply box, it is adaptable to an AC power supply circuit or control circuit that utilizes contactors.
Specification
Typical Applications of Multiple-Beam Sensor
Specifications
Common Operating Conditions
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Operating ambient temperature
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-10 to +50 C
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Operating ambient humidity
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90% RH or less
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Vibration resistance
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10 to 40 to 10 Hz sweep for 5 minutes, double amplitude 0.5 mm, for 2 hours each in X/Y/Z direction
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Impact resistance
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Shall withstand impacts in the packed condition when dropped freely in 8 directions from 300 mm above the concrete floor.
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Sensor Section (MX-84NL2)
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Detecting method
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Translucent type
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Light source
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Infrared LED
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Emission wavelength
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940nm
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Number of elements
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18
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Number of scanning optical axes
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Max. 84
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Element interval
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Lower 4 elements: 58.5 mm on average, upper 15 elements: 117 mm on average
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Lowest optical axis
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15 mm from bottom end of case
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Detection width
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1,829 mm, from bottom end of case to topmost element
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Setting distance
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0~3m (10°C ≦ Ta ≦ +40°C)
0~2.5m (-10°C ≦ Ta ≦ +50°C) |
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Power supply voltage
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DC 24 V + 10%, -20%, power supply ripple 10%
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Power consumption
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Projector:1.5W or less, receiver: 2 W or less
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Control output
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Circuit type
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NPN transistor open collector output
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Rating
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100 mA or less, resistance load, with over-current protecting function
Voltage drop at output “ON” – 2 V MAX. Leakage current at output “OFF” – 100μ A MAX. |
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Operation mode
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Control output “ON” when receiving total optical axes
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Response time
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At detecting: 80 ms MIN. (Main scan)/400 ms MAX. (Other than main scan)
At reset: 400 ms MAX. |
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Holding time
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150ms MIN
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Time-out function
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Optical axis cut-off function at failure of sensor
Condition: When the same optical axis has been shielded longer than the time-out setting value |
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Tolerance
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Adaptable up to 5 optical axes (elements), which do not adjoin each other
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Setting time.
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Approx. 45 sec
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External connection
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Extension of flexible cable length: 6 m (-6) or 10 m (-10)
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Ambient operating illuminance
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5,000 lx or less for fluorescent lamp. Direct incident light to receiver not allowed.
100,000 lx or less for sunlight. Direct incident light to receiver not allowed. 50,000 lx or less where sunlight irradiates directly receiver. |
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Enclosure rating
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IP54
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Weight
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Projector/receiver: Approx. 0.7 kg (Excluding cable), cable: 35 g/m
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