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Thank you very much for purchasing Panasonic products. Read this 
Instruction Manual carefully and thoroughly for the correct and 
optimum use of this product. Kindly keep this manual in a convenient 
place for quick reference.

SELECTION OF LARGE INDICATOR OPERATION

5

Lighting / blinking is selected by the operation mode switch on 
the emitter and the receiver.

Operation of large 

indicator

Lighting

Blinking

Operation mode switch

Emitter

Receiver

LIGHT

BLINK

LIGHT

BLINK

LIGHT

BLINK

LIGHT

BLINK

SPECIFICATIONS

1

NA1-11-PN

Model No. (Note 1)

NA1-11

Orange LED

lights up or blinks when the 

large indicator input is High, 

lighting pattern is selected 

by operation mode switch

Orange LED

lights up or blinks when the 

large indicator input is High, 

lighting pattern is selected 

by operation mode switch

PNP open-collector transistor

Maximum source current: 100mA

Applied voltage: 30V DC or less

(between output and +V)

Residual voltage: 

1V or less (at 100mA source current)

0.4V or less (at 16mA source current)

10mm

100mm

0.17 to 1m

PNP output

Ambient humidity

Large

Orange LED

lights up or blinks when the 

large indicator input is Low, 

lighting pattern is selected 

by operation mode switch

Orange LED (lights up when the output is ON)

Operation

Green LED (lights up when the power is ON)

Power

Large

Orange LED

lights up or blinks when the 

large indicator input is Low, 

lighting pattern is selected 

by operation mode switch

Green LED (lights up when the power is ON)

Indicators

Emitter

Power

Response time

In Dark state: 5ms or less, In Light state: 10ms or less

Incorporated

ON or OFF when the beam channel is interrupted, 

selectable by operation mode switch

Short-circuit protection

Output operation

NPN open-collector transistor

Maximum sink current: 100mA

Applied voltage: 30V DC or less

(between output and 0V)

Residual voltage: 

1V or less (at 100mA sink current)

0.4V or less (at 16mA sink current)

Output

11 Nos. each on the emitter and the receiver, respectively

Emitter: 80mA or less, Receiver: 100mA or less

Current consumption

Number of emitting /

receiving elements

Sensing range (Note 2)

Sensing height

φ

13.5mm or more opaque object (Note 3)

Sensing object

12 to 24V DC

±

10% Ripple P-P 10% or less

Supply voltage

Element pitch

NPN output

Type

Item

Receiver

Enclosure: Heat-resistant ABS, Lens: Acrylic

Indicator cover: Acrylic

Weight

Material

Emitting element

Ambient temperature

Cable

Emitter: 80g approx., Receiver: 85g approx.

0.3mm

2

 4-core (emitter: 3-core) oil-resistant cabtyre cable,

2m long

Infrared LED (Cross-beam scanning system)

35 to 85% RH, Storage: 35 to 85% RH

-10 to +55

℃ 

(No dew condensation or icing allowed) 

Storage: -20 to +70

Notes: 1)

2) 

3) 

The model No. with suffix '

-C5

' is 5m cable length type. (only NPN output 

type)

Model No.: NA1-11

-C5

The model No. with suffix '

P

' shown on the product affixed to the thru-beam 

type sensor is the emitter, '

D

' shown on the label is the receiver.

Thru-beam type sensor emitter: 

NA1-11P

Thru-beam type sensor receiver: 

NA1-11D

The sensing range gives the mounting distance between the emitter and 

the receiver. An object can be detected even if it is 0.17m, or less, away.

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.

CAUTIONS

2






This product has been developed / produced for industrial use only.
Make sure that the power supply is off while wiring or the 
operation of the operation mode switch.
Take care that wrong wiring may damage the sensor.
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.
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.
Extension up to total 100m is possible, for both emitter and 
receiver, with 0.3mm

2

, or more, cable. However, in order to 

reduce noise, make the wiring as short as possible.
Do not use during the initial transient time (0.5 sec.) after the 
power supply is switched on.
Avoid dust, dirt, and steam.
Take care that the sensor does not come in contact with water, 
oil, grease, organic solvents, such as, thinner etc., or strong acid, 
and alkaline.
Since the cable end is not waterproof, do not use the sensor in 
the application where water may seep in from the cable end.
Take care that the sensor is not directly exposed to fluorescent 
light from a rapid-starter lamp or a high frequency lighting device, 
as it may affect the sensing performance.
The emitter and the receiver must face each other with their cable ends on 
the same side. If they are set upside down, the sensor will not work correctly.
This sensor is suitable for indoor use only.
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. Hence, 
when the product 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 product it will affect the sensing.

Emitter

Receiver

Reflective object

Reflective object

Above

Below


If this product is used as a sensing device for personnel protection, serious body injury or death could result.

Never use this product as a sensing device with any press machine, shearing machine, roll grinding machine, forming machine, 

vulcanizer, or robot etc. for protection of a hand or a part of the body.

This product does not include a self-checking circuit for safety functions necessary to allow its use as a safety device. Thus, a 

system failure or malfunction can result in either an energized or a de-energized output condition.

When this product is used as a sensing device in the following applications and if a problem relating to 'law' or 'product liability' 

occurs, 

Panasonic Industrial Devices SUNX

 shall not be liable for the failure and for the damage or less.

For sensing devices to be used as safety devices for press machines or for personnel protection, use products which meet laws and 

standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.

In case of using as a safety device for press machines, use a product approved by the Ministry of Labor in Japan.

1)

2)

3)

Use of this product installed to a machinery or a device as a sensing device to detect a hand or a part of the operator's body 

entering a dangerous area and stop the machinery or the device.

Installation of this product to a protection device for preventing to enter a dangerous area and use of this as a sensing device 

which detects a hand or a part of the operator's body and open / close the door or window.

Use of this product as a sensing device for personnel protection (including interlock).

WARNING

BEAM ALIGNMENT

7


Place the emitter and the receiver 
face to face along a straight line.
After the cables have been 
correctly connected, switch 
the power ON.
Move the emitter in the up, 
down, left and right directions,
in order to determine the range of the beam received condition 
with the help of the operation indicator (orange) on the receiver. 
Then, set the emitter at the center of this range.
Similarly, adjust for up, down, left and right angular movement of 
the emitter.
Further, perform the angular adjustment for the receiver also.
Interrupt each beam channel with the actual sensing object, and 
confirm that the sensor operates correctly. Take care that in 
case the beam has not been aligned correctly, it may take time 
when Dark state changes to Light state.

Operation 

indicator 

(Orange)

Emitter

Receiver

Note: LIGHT/BLINK switch is not related to the output 

operation selection.

SELECTION OF OUTPUT OPERATION

6

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 

indicator (Orange)

Operation mode switch

D-ON

L-ON

Output 

operation

ON in 

Dark state

Lights up when 

the output is ON.
Lights up when 

the output is ON.

OFF in 

Dark state

D/ON

L/ON

L/ON

D/ON

Operation 

mode 

switch

Operation 

indicator

(Orange)

Large 

indicator

(Orange)

Power 

indicator

(Green)

Receiver

I/O CIRCUIT DIAGRAMS

4

NA1-11 / NPN output type

*1

or

Low (0 to 2V): lights up or blinks

High (5 to 30V, or open): turns off

Non-contact voltage or

NPN open-collector 

transistor

Notes: 1) 

2) 

3) 

The emitter is not incorporated with the 

output (black).

In order to use the large indicators as large 

size operation indicators connect input 

(pink) and output (black) wires together.

Insulate all unused wires individually to 

avoid miscontact.

*1

100mA  max.

Large indicator

lighting / blinking circuit


12 to 24V DC

±

10%

Main circuit

(Blue) 0V
(Pink) Input

(Note 2)

(Black) Output

(Note 1)

Load

(Brown) +V

Color code

Users' circuit

Internal circuit

NA1-11-PN / PNP output type

*1

High (4V or more): lights up or blinks

Low (0 to 0.6V, or open): turns off

Non-contact voltage or

PNP open-collector 

transistor

or

Notes: 1) 

2) 

3) 

The emitter is not incorporated with the 

output (black).

In order to use the large indicators as large 

size operation indicators connect input 

(pink) and output (black) wires together.

Insulate all unused wires individually to 

avoid miscontact.

100mA  max.

*1

Large indicator 

lighting / blinking circuit


12 to 24V DC

±

10%

Main circuit

Load

(Blue) 0V

(Pink) Input

(Note 2)

(Black) Output 

(Note 1)

(Brown) +V

Color code

Users' circuit

Internal circuit

MOUNTING

3

M4 screws with washers

M4 nuts

Use M4 screws with washers and M4 
nuts. The tightening torque should be 
0.5N

m or less.

During mounting, do not apply any 
bending or twisting force to the sensor.

Please arrange the screws and nuts 
separately.

Sensor mounting brackets (

MS-NA1-1

MS-NA2-1

) are also available.

MS-NA1-1 assembly drawing

NA1-11

(

-PN

)

Sensor mounting bracket

Nut

Anti-rotation hook
M4 (length 

15mm) screw 

with washers

MS-NA2-1 assembly drawing

<In case of rear-side mounting>

NA1-11

(

-PN

)

Sensor mounting 

bracket
Anti-rot

ation 

hook

M4 (length 15mm) 

screw with washers

Nut

<In case of front mounting>

NA1-11

(

-PN

)

Sensor mounting 

bracket
Anti-rot

ation 

hook

Nut

Spacer

M4 (length 18mm) 

screw with washers

INSTRUCTION MANUAL

NA1-11, NA1-11-PN

Small / Slim Object Detection

Area Sensor

MJEC-NA111 No.0055-41V

INTENDED PRODUCTS FOR CE MARKING

8

The models listed under '

SPECIFICATIONS

' come 

with CE Marking.
As for all other models, please contact our office.

1

Contact  for CE

Panasonic Marketing Europe GmbH Panasonic Testing Center

Winsbergring 15, 22525 Hamburg,Germany

http://panasonic.net/id/pidsx/global

© Panasonic Industrial Devices SUNX Co., Ltd. 2016

PRINTED IN JAPAN

Overseas Sales Division (Head Office) 

2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan 

Phone: +81-568-33-7861  FAX: +81-568-33-8591

For sales network, please visit our website.

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