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Basic Information
Cross-beam scanning system to detect slim objects
UL,CE,UKCA Approved
UL : Recognition(Excluding 5 m cable length type)
Letters or business cards detectable!
Slim objects can be detected by the cross-beam scanning system.
Emitting and receiving element pitch: 10 mm 0.394 in
A minimum sensing object size of ø13.5 mm ø0.531 in can be detected by an emitting and receiving element pitch of 10 mm 0.394 in.
Wide area
Though being extremely slim, it has a wide sensing area of 1 m 3.281 ft length and 100 mm 3.937 in width. It is most suitable for object detection on a wide assembly line, or for detecting the dropping or incursion of small objects whose travel path is uncertain.
Just 10 mm 0.394 in thick
It is extremely slim, being just 10 mm 0.394 in thick .
Further, it can be mounted in a narrow space as you can select from two cable orientation directions.
It is possible to select from two cable orientation directions.
Globally usable
It conforms to the EMC Directive and the UL Recognition.
Moreover, PNP output type, which is much in demand in Europe, is also available.
No synchronization wire
Wiring is saved and made simple as no synchronization wire is required between the emitter and the receiver.
Clearly visible large indicator
A clearly visible large indicator, having a 55 mm 2.165 in width, is incorporated on both the emitter and the receiver. Further, if the sensing output is directly connected to the large indicator input, the indicator can be conveniently used as a large operation indicator.
Moreover, its operation is selectable between lighting or blinking.
Cross-beam Scanning System
In a conventional area sensor, slim objects cannot be detected since the emitting and the receiving elements are scanned synchronously as a set. In contrast, in NA1-11, only the elements 1 to 11 of the emitter are scanned to obtain emission. The elements of the receiver are not scanned, so that when element 1 of the emitter emits light, all the elements of the receiver receive light. Hence, even if there is one element on the receiver which does not receive light, it results in light interrupted operation. With this technique, detection of slim objects is possible.
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Detecting the edges of moving objects
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Option
[Note]
The following applicable products and options are available continuously.
| Designation | Model No. | Description |
|---|---|---|
| Sensor mounting bracket | MS-NA1-1 | Four bracket set Four M4 (length 15 mm 0.591 in) screws with washers, eight nuts, four hooks, four spacers and eight M4 (length 18 mm 0.709 in) screws with washers are attached. (Spacers are not attached with MS-NA1-1.) |
| MS-NA2-1 |
Sensor mounting bracket
MS-NA1-1
M4 screws with washers, nuts and hooks are attached.
MS-NA2-1
M4 screws with washers, nuts, hooks and spacers are attached.
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Specifications
| Type | NPN output | PNP output | |
|---|---|---|---|
| Model No. | NA1-11 | NA1-11-PN | |
| Sensing height | 100 mm 3.937 in | ||
| Sensing range (Note 2) | 0.17 to 1 m 0.558 to 3.281 ft | ||
| Element pitch | 10 mm 0.394 in | ||
| Number of emitting / receiving elements | 11 Nos. each on the emitter and the receiver, respectively | ||
| Sensing object | ø13.5 mm ø0.531 in or more opaque object (Note 3) | ||
| Supply voltage | 12 to 24 V DC ± 10 % Ripple P-P 10 % or less | ||
| Current consumption | Emitter: 80 mA or less, Receiver: 100 mA or less | ||
| Output | NPN open-collector transistor ・Maximum sink current: 100 mA ・Applied voltage: 30 V DC or less (between output and 0 V) Residual voltage: 1 V or less (at 100 mA sink current) 0.4 V or less (at 16 mA sink current) | PNP open-collector transistor ・Maximum source current: 100 mA ・Applied voltage: 30 V DC or less (between output and +V) ・Residual voltage: 1 V or less (at 100 mA source current) 0.4 V or less (at 16 mA source current) | |
| Utilization category | DC-12 or DC-13 | ||
| Output operation | ON or OFF when beam channel is interrupted, selectable by operation mode switch | ||
| Short-circuit protection | Incorporated | ||
| Response time | In Dark state: 5 ms or less, In Light state: 10 ms or less | ||
| Indicators | Emitter | Power indicator: Green LED (lights up when the power is ON) Large indicator: Orange LED (lights up or blinks when the large indicator input is Low, lighting pattern is selected by operation mode switch) | Power indicator: Green LED (lights up when the power is ON) Large indicator: Orange LED (lights up or blinks when the large indicator input is High, lighting pattern is selected by operation mode switch) |
| Receiver | Operation indicator: Orange LED (lights up when the output is ON) Power indicator: Green LED (lights up when the power is ON) Large indicator: Orange LED (lights up or blinks when the large indicator input is Low, lighting pattern is selected by operation mode switch) | Operation indicator: Orange LED (lights up when the output is ON) Power indicator: Green LED (lights up when the power is ON) Large indicator: Orange LED (lights up or blinks when the large indicator input is High, lighting pattern is selected by operation mode switch) | |
| Pollution degree | 3 (Industrial environment) | ||
| Protection | IP62 (IEC) | ||
| Ambient temperature | -10 to 55 ℃ +14 to +131 ℉ (No dew condensation or icing allowed), Storage: -20 to +70 ℃ -4 to +158 ℉ | ||
| Ambient humidity | 35 to 85 % RH, Storage: 35 to 85 % RH | ||
| Ambient illuminance | Incandescent light: 3,000 lx or less at the light-receiving face | ||
| Voltage withstandability | 1,000 V AC for one min. between all supply terminals connected together and enclosure | ||
| Insulation resistance | 20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure | ||
| Vibration resistance | 10 to 150 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each | ||
| Shock resistance | 500 m/s2 acceleration (50 G approx.) in X, Y and Z directions three times each | ||
| Emitting element | Infrared LED (Peak emission wavelength: 880nm 0.035mil, cross-beam scanning system) | ||
| Material | Enclosure: Heat-resistant ABS, Lens: Acrylic, Indicator cover: Acrylic | ||
| Cable | 0.3 mm2 4-core (emitter: 3-core) oil resistant cabtyre cable, 2 m 6.562 ft long | ||
| Cable extension | Extension up to total 100 m 328.084 ft is possible, for both emitter and receiver, with 0.3 mm2, or more, cable. | ||
| Weight | Net weight: Emitter 80 g approx., Receiver 85 g approx, Gross Weight: 210 g approx. | ||
Note:
(1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
(2) The sensing range is the possible setting distance between the emitter and the receiver.
(3) Although this product can detect slim objects by using the cross-beam scanning system, the size of the slim object which can be stably detected differs with the setting distance. When this sensor is used to detect slim objects, make sure to confirm stable detection using the actual objects.
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Dimensions
- Unit: mm in
NA1-11 NA1-11-PN
Sensor
MS-NA1-1
Sensor mounting bracket (Optional)
Material:Cold rolled carbon steel (SPCC) (Uni-chrome plated)Four bracket set[Four M4 (length 15 mm0.591 in) screws with washers, eight nuts, four hooks and eight M4 (length 18 mm0.709 in) screws with washers are attached.M4 (length 18 mm0.709 in) screws with washers are not used for NA1-11.]
Assembly dimensions
Mounting drawing with the receiver
MS-NA2-1
Sensor mounting bracket (Optional)
Material:Cold rolled carbon steel (SPCC)(Uni-chrome plated)Four bracket set[Four M4 (length 15 mm0.591 in) screws with washers, eight nuts, four hooks, four spacers and eight M4 (length 18 mm0.709 in) screws with washers are attached.]
Assembly dimensions
Mounting drawing with the receiver
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I/O Circuit and Wiring diagrams
NPN output type
NA1-11
I/O circuit diagram
Notes:
1) The emitter does not incorporate the output (black).
2) Unused wires must be insulated to ensure that they do not come into contact with wires already in use.
Symbols･･･
D : Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor
E : Large indicator (INDICATOR)
Wiring diagram
Notes:
1)
The emitter does not incorporate the black lead wire.
2)
Unused wires must be insulated to ensure that they do not come into contact with wires already in use.
PNP output type
NA1-11-PN
I/O circuit diagram
Notes:
1) The emitter does not incorporate the output (black).
2) Unused wires must be insulated to ensure that they do not come into contact with wires already in use.
Symbols･･･
D : Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: PNP output transistor
E : Large indicator (INDICATOR)
Wiring diagram
Notes:
1) The emitter does not incorporate the black lead wire.
2) Unused wires must be insulated to ensure that they do not come into contact with wires already in use.
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Sensing characteristics
*TYPICAL
Correlation between setting distance and excess gain
Parallel deviation
Angular deviation
Correlation between setting distance and minimum length of detectable object
The minimum length of the detectable object, which lies in a plane perpendicular to the sensor front surface, varies with the setting distance, as shown in the left graph.
However, note that the minimum length of the detectable object also varies with the object thickness.
* The sensing object is considered to be placed at the center of the sensing area.
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Mounting
- Use M4 screws with washers and M4 nuts. The tightening torque should be 0.5 N·m or less.
(Purchase the screws and nuts separately.)
Selection of large indicator operation
- Lighting / Blinking is selected by the operation mode switch on the emitter and the receiver.
| Operation of large indicator | Operation mode switch | |
|---|---|---|
| Emitter | Receiver | |
| Lighting |  |  |
| Blinking |  |  |
Selection of output operation
- The output operation mode is selected by the operation mode switch on the receiver.
(The switches must be set with the power supply off. The operation mode does not change if the switch setting is changed with the power supplied.)
| Operation mode switch (Receiver) | Output operation | Operation indicator (Orange) | |
|---|---|---|---|
| D-ON |
| ON in Dark state | Lights up when the output is ON |
| L-ON |
| OFF in Dark state | Lights up when the output is ON |
Note: LIGHT / BLINK switch is not related to the output operation selection.
Wiring
- Make sure that the power supply is off while wiring.
- Verify that the supply voltage variation is within the rating.
- If power is supplied from a commercial switching regulator, ensure that the frame ground (F.G.) terminal of the power supply is connected to an actual ground.
- Ensure that an isolation transformer is utilized for the DC power supply. If an autotransformer is utilized, the main body or power supply may be damaged.
- If the used power supply generates a surge, connect a surge absorber to the power supply to absorb the surge.
- In case noise generating equipment (switching regulator, inverter motor, etc.) is used in the vicinity of this product, connect the frame ground (F.G.) terminal of the equipment to an actual ground.
- Do not run the wires together with high-voltage lines or power lines or put them in the same raceway. This can cause malfunction due to induction.
- Make sure that stress by forcible bend or pulling is not applied directly to the sensor cable joint.
Others
- Do not use during the initial transient time (0.5 sec.) after the power supply is switched on.
- Although this sensor can detect slim objects by using the cross-beam scanning system, the size of the slim object which can be stably detected differs with the setting distance. Hence, when the sensor is used to detect slim objects, make sure to confirm stable detection using the actual objects.
- In case of this sensor, light from the emitter spreads above and below the sensor. Hence, take care that if there is a reflective object above or below the sensor it will affect the sensing.
Refer to “Parallel deviation” in “SENSING CHARACTERISTICS (TYPICAL)”.