Panasonic PX-2 Series User manual

2022.6
Long Range & Wide Area
Photoelectric Sensor
PX-2 SERIES
* The contents of this catalog are as of October 2017.
For the latest information, please visit our company website.

2
Ideal sensing area with very little null zone
The advanced optical system of the PX-2
series reduces the null zones in front of an
automatic guided vehicle (AGV).
The null zones at the sides are further
minimized if auxiliary sensors which can be
easily mounted with connectors are used.
Auxiliary sensor
(Optional) Auxiliary left OUT 1 area (700 mm 27.559 in)
Adjacent left OUT 1 area
OUT 1 area: 3 m 9.843 ft
1 m 3.281 ft with PX-21
and PX-23ES,
5 m 16.404 ft with PX-26
OUT 2 area: 3 m 9.843 ft
1 m 3.281 ft with PX-21
and PX-23ES,
5 m 16.404 ft with PX-26
Auxiliary sensor
(Optional)
Auxiliary right OUT 1 area (700 mm 27.559 in)
Adjacent right OUT 1 area
( ) (
)
For PX-24, PX-24ES, PX-23ES
and PX-26
PX-2 SERIES
Compact size sensor realizes wide sensing
area & long sensing range
Compact size for space-saving
Its size is half of a conventional model,
and the attached cable
orientation is freely
adjustable. Hence, it can
also t in a small AGV.
Moreover, sensitivity
adjustment can be done on
the front face.
Long sensing range 5 m 16.404 ft type
PX-26 has a long sensing range of 5 m 16.404 ft. Even
on a high-speed AGV, it can detect an object quite early
so that slowing down and stopping are smooth.
Automatic interference prevention function
One PX-2 sensor can simultaneously receive beams from
25 Nos. of other PX-2 sensors without resulting in any
interference. Even if AGVs are facing each other, the
PX-2 sensor on one AGV reliably detects the other AGVs.
Hence, it can be safely used even at a place where
several AGVs are moving.
43 mm
1.693 in
83 mm
3.268 in
62 mm
2.441 in
Sensitivity adjuster
Sleep function
The sensor can be put into the sleep (stand-by) condition
when it is not used and can be restored to operating
condition by an external signal.
Consequently battery is conserved as the power
consumption is reduced to 1/5.
External sensitivity adjustment
The sensitivity of the sensor can be adjusted, within the
range set by the manual adjuster, by an external input.
(For PX-24, PX-24ES, PX-23ES and PX-26)
Sensing areas selectable as per route condition
Sensing areas can be selected with
switches to suit the route conditions of
an AGV.
Further, in case of
PX-24ES and PX-23ES,
the sensing areas can
also be selected with
external signals.
Long Range & Wide Area Photoelectric Sensor

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
3
ORDER GUIDE
Main Sensor
Type Appearance Sensing range Model No.
Standard type
3 m 9.843 ft PX-22
Short sensing range
1 m 3.281 ft PX-21
Auxiliary sensor connectable type
3 m 9.843 ft
PX-24
With external control function
PX-24ES
Short sensing range
1 m 3.281 ft PX-23ES
Long sensing range
5 m 16.404 ft PX-26
Auxiliary
sensor 700 mm 27.559 in PX-SB1
Accessories
•MS-PX-2 (Main sensor mounting bracket) • MS-NX5-1 (Auxiliary sensor mounting bracket)
Two bracket set
Four M4 (length 8 mm
0.315 in) screws with
washers are attached.
Two M4 (length 25 mm
0.984 in) screws with
washers and two M4 nuts
are attached.
OPTIONS
Designation Model No. Description
Auxiliary sensor
mounting
bracket
MS-NX5-2 Foot biangled mounting bracket (Sensor protection bracket)
MS-NX5-3 Back angled mounting bracket
Auxiliary sensor mounting bracket
• MS-NX5-2 • MS-NX5-3
Tw
o M4 (length 25 mm
0.984 in
) screws with
washers and two M4 nuts
are attached.
Tw
o M4 (length 25 mm
0.984 in
) screws with
washers and two M4 nuts
are attached.

4
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
SPECIFICATIONS
Main sensors
Type Standard model Auxiliary sensor connectable model With external control function Long sensing
range
Short sensing range Short sensing range
Item Model No. PX-22 PX-21 PX-24 PX-24ES PX-23ES PX-26
CE marking directive compliance EMC Directive, RoHS Directive
Sensing range (OUT 1 and OUT 2 areas) (Note 2) 3 m 9.843 ft 1 m 3.281 ft 3 m 9.843 ft 1 m 3.281 ft 5 m 16.404 ft
Hysteresis (Note 2) 15 % or less of operation distance
Supply voltage 10 to 31 V DC including ripple
Power consumption (Note 3) Under operation: 1.5 W or less, Under sleep condition: 0.3 W or less (without auxiliary sensor)
OUT1
OUT2
NPN open-collector transistor
• Maximum sink current: 100 mA
• Applied voltage: 40 V DC or less (between OUT 1 / OUT 2 and 0 V)
• Residual voltage: 1.5 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
Utilization category DC-12 or DC-13
Output operation Selectable either Light-ON or Dark-ON with a switch (Output operation of OUT 1 and OUT 2 is the same.)
Short-circuit protection Incorporated
Extraneous light monitor
output
–
NPN open-collector transistor
• Maximum sink current: 100 mA
• Applied voltage: 40 V DC or less (between extraneous light monitor output and 0 V)
• Residual voltage: 1.5 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
Output operation
–
ON when modulated beam other than its own (including auxiliary sensor’s) light is received
Short-circuit protection
– –
Response time 80 ms or less
Operation
indicators
OUT 1 area Red LED (lights up when the beam is received in the effective OUT 1 areas)
OUT 2 area Yellow LED (lights up when the beam is received in the effective OUT 2 areas)
Sensitivity adjuster
Continuously variable adjusters (OUT 1, adjacent right OUT 1, adjacent left OUT 1 and OUT 2 areas are adjusted independently.)
External sensitivity adjustment function
–
Sensitivity adjustment is possible with an analog input.
Sensing area Four sensing areas are selectable with dip switches.
Four sensing areas are selectable with dip switches, and
eight sensing areas are selectable with external inputs.
Fixed
Sleep function Operating / sleep selectable with external input
Automatic interference prevention function Optical interference from up to 25 units is prevented.
Environmental resistance
Pollution degree 3 (Industrial environment)
Protection IP65 (IEC)
Ambient temperature –10 to +55 °C +14 to +131 °F (No dew condensation or icing allowed), Storage: –20 to +70 °C –4 to +158 °F
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 500 V DC megger between all supply terminals connected together and enclosure
Vibration resistance 10 to 500 Hz frequency, 3 mm 0.118 in double amplitude (20 G max.) in X, Y and Z directions for two hours each
Shock resistance 500 m/s2acceleration (50 G approx.) in X, Y and Z directions three times each
Emitting element Infrared LED (Peak emission wavelength: 950 nm 0.037 mil, modulated)
Material Enclosure: ABS, Lens: Acrylic, Cover: Polycarbonate
Cable 0.3 mm25-core cabtyre cable, 0.5 m
1.640 ft long (for input and output)
For input and output: 0.18 mm29-core (PX-24ES and PX-23ES: 12-core) cabtyre cable, 0.5 m 1.640 ft long
For auxiliary sensor connection: 0.18 mm210-core connector attached cabtyre cable, 0.5 m 1.640 ft long
Cable extension Extension up to total 100 m 328.084 ft (10 m 32.808 ft for auxiliary sensor connection) is possible with 0.3 mm2, or more, cable.
Weight Net weight: 210 g approx.
Gross weight: 390 g approx.
Net weight: 220 g approx.
Gross weight: 400 g approx.
Net weight: 210 g approx.
Gross weight: 390 g approx.
Accessories MS-PX-2 (Main sensor mounting bracket): 1 set, Adjusting screwdriver: 1 pc., Matrix chart for sensing areas and external inputs: 1 sheet (PX-24ES and PX-23ES only)
OR circuit among the effective center,
left, right, adjacent left / right OUT 1 areas
and the effective auxiliary left / right areas
OR circuit among the effective center, left
and right OUT 2 areas
Notes: 1) Where measurement conditions have not been specied precisely, the conditions used were an ambient temperature of +23 °C +73.4 °F.
2) The sensing range is specied for white non-glossy paper (300 × 300 mm 11.811 × 11.811 in) as the object.
3) Obtain the current consumption by the following calculation.
Current consumption = Power consumption ÷Supply voltage
(e.g.) When the supply voltage is 12 V, the current consumption (operating condition) is: 1.5 W ÷12 V = 0.125 A = 125 mA

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
5
*1
For auxiliary
sensor connection
0 to +5 V DC
Load
Load
Load
Brown
Blue
White
Pink
Pink / Black
Pink / White
Pink / Violet
Violet
Violet / Black
Pink / Gray
Black / White
Black
+ -
+
-
10 to 31 V DC
SPECIFICATIONS
Auxiliary sensor (Note 2)
Item
Model No.
PX-SB1
CE marking directive compliance EMC Directive, RoHS Directive
Applicable main sensor PX-24, PX-24ES, PX-23ES or PX-26
Connectable units Up to two PX-SB1’s can be connected to one main sensor.
Sensing range (Note 3) 700 mm 27.559 in
Supply voltage Supplied from the main sensor
Current consumption Current consumption of the main sensor increases by 30 mA approx. per auxiliary sensor.
Output OR circuit with the main sensor’s OUT 1
Operation indicator Red LED (lights up when the beam is received)
Sensitivity adjuster Continuously variable adjuster
Emitting element Infrared LED (modulated)
Material Polycarbonate
Cable 0.3 mm25-core cabtyre cable, 2 m 6.562 ft long
Cable extension Extension up to total 10 m 32.808 ft is possible with 0.3 mm2, or more, cable.
Weight Net weight: 130 g approx., Gross weight: 240 g approx
Accessories MS-NX5-1 (Auxiliary sensor mounting bracket): 1 set, Adjusting screwdriver: 1 pc.
Notes: 1) Where measurement conditions have not been specied precisely, the conditions used were an ambient temperature of +20 °C +68 °F.
2) The auxiliary sensor cannot be used as a stand-alone unit.
3) The sensing range is specied for white non-glossy paper (300 × 300 mm 11.811 × 11.811 in) as the object.
Specications other than the above are identical with the main sensor.
I/O CIRCUIT AND WIRING DIAGRAMS
PX-24ES PX-23ES
I/O circuit diagram Wiring diagram
* 1
Non-voltage contact or NPN open-collector transistor
or
• Area selection input
Low (0 to 1 V): Depends on the logic combination
(Refer to p.10)
High (4.5 to 31 V, or open): Depends on the logic combination
(Refer to p.10)
• Auxiliary area ineffective input
Low (0 to 1 V): Area ineffective
High (4.5 to 31 V, or open): Area effective
• Sleep input
Low (0 to 1 V): Sleep condition
High [(supply voltage – 1 V) to 31 V, or open]: Operating condition
Users’ circuit Internal circuit
Sensor circuit
D (Brown) +V
100 mA max.
Load
Z D2
Z D1
Z D3
(Blue) 0 V
0 to +5 V DC
+ -
100 mA max.
100 mA max.
6 mA max.
Color code
*1
Tr
3
Tr 2
Tr 1
(White) OUT 2
(Pink)
Area Selection Input 1
(Pink / Black)
Area Selection Input 2
(Pink / White)
Area Selection Input 3
(Pink / Violet) Sleep input
(Violet) Auxiliary right OUT 1
area ineffective input
(Violet / Black) Auxiliary left
OUT 1 area ineffective input
(Pink / Gray) External
sensitivity adjustment input
(Black / White) Extraneous light monitor output
(Black) OUT 1 Load
Load
(Input impedance: 1 kΩ approx.)
+
-
10 to 31 V DC
Symbols … D: Reverse supply polarity protection diode
ZD1, ZD2, ZD3: Surge absorption zener diode
Tr1, Tr2, Tr3: NPN output transistor

6
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
Sensor circuit
D (Brown) +V
100 mA max.
Z
D1
Load
Z
D2
Load
(Black) OUT1
(White) OUT2
(Blue) 0 V
*1
Users’ circuitInternal circuit
100 mA max.
Color code
Tr1
Tr2
(Pink / Violet) Sleep input
+
-
10 to 31 V DC
Load
Brown
White
Black Load
Blue
Pink / Violet
*1
+
-
10 to 31 V DC
I/O CIRCUIT AND WIRING DIAGRAMS
I/O circuit diagram Wiring diagram
PX-22 PX-21
* 1
Non-voltage contact or NPN open-collector transistor
or
• Sleep input
Low (0 to 1 V): Sleep condition
High [(supply voltage – 1 V) to 31 V, or open]: Operating condition
*1
Tr
1
Tr 2
Tr
3
D
100 mA max.
Z D1
Z D2
Z D3
100 mA max.
100 mA max.
6 mA max.
Color code
Load
Load
Load
(Brown) +V
(White) OUT 2
(Black / White) Extraneous light monitor output
(Black) OUT 1
(Blue) 0 V
(Violet / Black) Auxiliary left
OUT 1 area ineffective input
(Pink / Violet) Sleep input
(Pink / Gray)
External sensitivity
adjustment input
Users’ circuit Internal circuit
0 to +5 V DC
Sensor circuit
(Input impedance: 1 kΩ approx.)
(Violet) Auxiliary right
OUT 1 area ineffective input
10 to 31 V DC
+
+
For auxiliary
sensor connection
Load
Load
Load
Brown
Blue
White
Black / White
Black
Violet
Violet / Black
Pink / Gray
Pink / Violet
*1
0 to +5 V DC
+ -
+
-
10 to 31 V DC
PX-24 PX-26
I/O circuit diagram Wiring diagram
* 1
Non-voltage contact or NPN open-collector transistor
or
• Auxiliary area ineffective input
Low (0 to 1 V): Area ineffective
High (4.5 to 31 V, or open): Area effective
• Sleep input
Low (0 to 1 V): Sleep condition
High [(supply voltage – 1 V) to 31 V, or open]: Operating condition
Symbols … D: Reverse supply polarity protection diode
ZD1, ZD2: Surge absorption zener diode
Tr1, Tr2 : NPN output transistor
Symbols … D: Reverse supply polarity protection diode
ZD1, ZD2, ZD3: Surge absorption zener diode
Tr1, Tr2, Tr3
: NPN output transistor

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
7
SENSING CHARACTERISTICS (TYPICAL)
How to read sensing characteristics
•Sensing eld Sensing area
Note: The sensitivity has been adjusted so that
the maximum sensing range for white
non-glossy paper (300 × 300 mm 11.811 ×
11.811 in) is 3 m 9.843 ft (1 m 3.281 ft for
PX-21 and PX-23ES, 5 m 16.404 ft for
PX-26) with the L., C. and R. areas effective.
L. : Left area
C. : Center area
R. : Right area
L’. : Adjacent left OUT 1 area
R’.: Adjacent right OUT 1 area
• Correlation between external sensitivity
adjustment input voltage and sensing range
Sensing object
Type of non-glossy paper
White non-glossy paper (lightness: 9)
Gray non-glossy paper (lightness: 5)
Black non-glossy paper (lightness: 2)
It shows the variation
in the sensing range
when the external
input voltage is
changed from 0 to
+5 V with the
sensitivity adjuster
set at the maximum
sensing range.
• Correlation between sensitivity adjuster and sensing range
Please note that due to the adjuster’s characteristics it may
be difcult to adjust the sensitivity at a close distance or near
to rated sensing distances. (Refer to “Correlation between
sensitivity adjustor and sensing range” below.)
All models
Correlation between setting distance and excess gain
LL
Horizontal
(left-right) direction
Vertical (up-down) direction
Non-glossy paper
ℓℓ
300 × 300 mm
11.811 × 11.811 in L.
C.
R.
L’.
R’.
L
White non-glossy paper
300 × 300 mm
11.811 × 11.811 in
01
3.281
3
9.843
4
13.123
5
16.404
1
10
5
100
2
6.562
Excess gain
50
PX-SB1
PX-21
PX-23ES
PX-22 PX-24
PX-24ES
Setting distance L (m ft)
PX-26
PX-22 PX-24 PX-24ES
Sensing elds
Correlation between external sensitivity
adjustment input voltage and sensing range
(Excluding PX-22)
•All areas effective (Horizontal) •C. area effective (Horizontal) •All areas effective (Vertical)
Correlation between sensitivity adjuster and sensing range
•OUT1(OUT2) area •Adjacent right (left) OUT1 area
0
6
5
1
2 3
Adjuster scale
4
20 4 6
1
3.281
2
6.562
4
13.123
3
9.843
Adjuster scale
Sensing range L (m ft)
(Min.) (Max.)
Center area
measurement method
300 × 300 mm 11.811 × 11.811 ft
White non-glossy paper
L
0
6
5
1
2 3 4
300 × 300 mm 11.811 × 11.811 ft
White non-glossy paper
Adjuster scale
Measurement method of the
adjacent right OUT1 area
(same as the adjacent
left OUT1 area)
4 6
1
3.281
20
0.5
1.640
2
6.562
1.5
4.922
L 45°
45°
Adjuster scale(Min.) (Max.)
Sensing range L (m ft)
0
White non-
glossy paper
Gray non-
glossy paper
Black non-
glossy paper
1
3.281
0.5
1.640
0 0.5
1.640
1
3.281
Left Right
Center
Operating point ℓ (m ft)
1
3.281
2
6.562
4
13.123
3
9.843
Setting distance L (m ft)
0
White non-
glossy paper
Gray non-
glossy paper
1
3.281
0.5
1.640
0 0.5
1.640
1
3.281
Center
Operating point ℓ (m ft)
1
3.281
2
6.562
4
13.123
3
9.843
Left Right
Setting distance L (m ft)
1
3.281
0.5
1.640
0 0.5
1.640
1
3.281
White non-
glossy paper
Gray non-
glossy paper
Down Up
Center
Operating point ℓ (m ft)
1
3.281
2
6.562
4
13.123
3
9.843
0
Setting distance L (m ft)
1 2 3 40
1
3.281
2
6.562
4
13.123
3
9.843
5
External sensitivity adjustment
input voltage (V)
Max. sensing range: 3 m 9.843 ft
Max. sensing range: 2 m 6.562 ft
Max. sensing range: 1 m 3.281 ft
Sensing range L (m ft)

8
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
SENSING CHARACTERISTICS (TYPICAL)
PX-21 PX-23ES
Sensing elds
Correlation between external sensitivity
adjustment input voltage and sensing range
(PX-23ES only)
•All areas effective (Horizontal) •C. area effective (Horizontal) •All areas effective (Vertical)
White non-
glossy paper
Gray non-
glossy paper
Black non-
glossy paper
CenterLeft Right
Operating point ℓ (mm in)
Setting distance L (m ft)
400
15.748
200
7.874
0 200
7.874
400
15.748
0
0.5
1.640
1
3.281
White non-
glossy paper
Gray non-
glossy paper
CenterLeft Right
Operating point ℓ (mm in)
Setting distance L (m ft)
400
15.748
200
7.874
0 200
7.874
400
15.748
0
0.5
1.640
1
3.281
0
0.5
1.640
1
3.281
1234 5
Max. sensing range: 1 m 3.281 ft
Max. sensing range: 0.5 m 1.640 ft
External sensitivity adjustment
input voltage (V)
Sensing range L (m ft)
White non-
glossy paper
Gray non-
glossy paper
CenterDown Up
Operating point ℓ (mm in)
Setting distance L (m ft)
400
15.748
200
7.874
0 200
7.874
400
15.748
0
0.5
1.640
1
3.281
•OUT1 (OUT2) area •Adjacent right (left) OUT1 area
Correlation between sensitivity adjuster and sensing range
0
6
5
1
2 3 4
20 4 6
0.5
1.640
1
3.281
Center area
measurement method
300 × 300 mm 11.811 × 11.811 in
White non-glossy paper
L
Adjuster scale
Adjuster scale(Min.) (Max.)
Sensing range L (m ft)
0
6
5
1
2 3 4
2 4
0
100
3.937
200
7.874
400
15.748
300
11.811
6
L 45°
45°
Adjuster scale
Adjuster scale(Min.) (Max.)
300 × 300 mm
11.811 × 11.811 in
White non-
glossy paper
Sensing range L (mm in)
Measurement method of the
adjacent right OUT1 area (same
as the adjacent left OUT1 area)
PX-26
Sensing elds
Correlation between external sensitivity
adjustment input voltage and sensing range
• Horizontal [All areas effective (Note)] •Vertical [All areas effective (Note)]
Correlation between sensitivity adjuster and sensing range
•OUT1 (OUT2) area •Adjacent right (left) OUT1 area
0
2
6.562
4
13.123
8
26.247
6
19.685
White non-
glossy paper
Gray non-
glossy paper
Black non-
glossy paper
Setting distance L (m ft)
1
3.281
0.5
1.640
0 0.5
1.640
1
3.281
Left Right
Center
Operating point ℓ (m ft)
White non-
glossy paper
Gray non-
glossy paper
0
2
6.562
4
13.123
8
26.247
6
19.685
Setting distance L (m ft)
1
3.281
0.5
1.640
0 0.5
1.640
1
3.281
Down Up
Center
Operating point ℓ (m ft)
1234
0
2
6.562
4
13.123
8
26.247
6
19.685
5
External sensitivity adjustment
input voltage (V)
Max. sensing range: 4 m 13.123 ft
Max. sensing range:
3 m 9.843 ft
Max. sensing range: 2 m 6.562 ft
Max. sensing range: 1 m 3.281 ft
Max. sensing range:
5 m 16.404 ft
Sensing range L (m ft)
0
6
5
1
2 3 4
2
6.562
4
13.123
8
26.247
6
19.685
300 × 300 mm 11.811 × 11.811 in
White non-glossy paper
L
4 60 2
Adjuster scale
Adjuster scale
Sensing range L (m ft)
(Min.) (Max.)
Center area
measurement method
0
6
5
1
2 3 4
4 6
1
3.281
20
0.5
1.640
2
6.562
1.5
4.922
L 45°
45°
Adjuster scale
Adjuster scale(Min.) (Max.)
Sensing range L (m ft)
300 × 300 mm 11.811 × 11.811 in
White non-glossy paper
Measurement method of the
adjacent right OUT1 area
(same as the adjacent
left OUT1 area)
Note: Area selection is not possible.

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
9
SENSING CHARACTERISTICS (TYPICAL)
PX-SB1
Sensing eld
•Horizontal and vertical directions
40
1.575
20
0.787
020
0.787
40
1.575
0
0.2
0.656
0.4
1.312
0.8
2.625
0.6
1.969
White non-
glossy paper
(Down) Left Right (Up)
Center
Operating point ℓ (mm in)
Setting distance L (m ft)
PRECAUTIONS FOR PROPER USE
All models
Hazard Indications
•Installation of a touch bumper
You are requested to always install a touch bumper when this
product is used on an automatic guided vehicle (AGV).
WARNING
In this catalog, WARNING and CAUTION are
indicated depending upon the level of danger. Please
observe them strictly for the safe use of this sensor.
WARNING
‘WARNING’ indicates a potentially hazardous situation
that, if not avoided, could result in death or serious injury.
CAUTION
‘CAUTION’ indicates a hazardous situation that, if not
avoided, may result in minor or moderate injury.
Further, they also indicate the condition of risk of
physical damage to machinery.
•Use outside Japan
This sensor conforms to the EMC Directive. However, it is not
certied by a competent body in accordance with other country
safety standards. Since each country has its regulations, please
follow the local and national regulations of the country where this
sensor is used.
CAUTION
•Fail-safe measures
This sensor is meant for proximity detection and does not
possess control functions for safety maintenance. If fail-safe
measures are required, consider their incorporation in the total
system.
Further, do not connect the sensor output directly to a stopping
mechanism (brake).
CAUTION
•Periodical maintenance check
The person in charge must periodically conrm the performance
of the product and maintain a record of such checks. In addition,
whenever the operating environment of the product is changed due
to system modication, etc., performance check must be done.
CAUTION
Mounting
• The tightening torque for the main sensor should be 1.2 N·m or less.
• The tightening torque for PX-SB1 (auxiliary sensor)
should be 0.8 N·m or less.
M4 (length 8 mm
0.315 in)
screw with
washers
Sensor
mounting
bracket
MS-PX-2
(Accessory)
• Mount the sensor, horizontally, at least 300 mm 11.811 in
above the oor, to avoid reection from the oor.
300 mm 11.811 in or more
M4 (length 25 mm
0.984 in)
screw with washers
M4 nuts
Sensor mounting
bracket
MS-NX5-1
(Accessory)
• Never use this product as a sensing device
for personnel protection.
• In case of using sensing devices 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.

10
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
All models Others
Selection of sensing area
• Do not use during the initial transient time (0.7 sec.) after
the power supply is switched on.
• Take care that an initial rush current (1.5 A approx. at
10 V DC and 5 A approx. at 31 V DC) will ow when the
power supply is switched on.
Automatic interference prevention function
• In case several sensors are used at the same place, take
care that the number of sensors from which beams may
be simultaneously incident is 25 sensors or less.
Sleep function
• When the sleep input is made Low, the sensor goes into
the sleep state and the operation can be stopped.
Part description
Notes: 1) Response time of the sleep input is 50ms.
2) Reactivation from the sleep state to the operation state takes
0.7 sec. approx. Operation during this transient state should be
avoided.
3) When the sleep function is not used, keep the sleep input wire
open or insulated and prevent contact with other wires.
PRECAUTIONS FOR PROPER USE
Simultaneously incident beam
from up to 25 sensors.
Total of 26 sensors
can be used at
the same place.
⑨
⑤
③
①
⑥
④
②
⑧
⑦
⑩
Sign Item Description
Operation
indicator
OUT 2 area
(Yellow LED)
Lights up when the beam is received in the
OUT 2 area.
OUT 1 area
(Red LED)
Lights up when the beam is received in the
OUT 1 area.
Sensitivity
adjuster
OUT 2 area Sensing area sensitivity adjuster.
Adjacent left OUT 1 area
OUT 1 area
OUT 2 area
Adjacent right OUT 1 area
OUT 1 area
Adjacent right
OUT 1 area
Adjacent left
OUT 1 area
Sensing
area
selection
switch
(Note 1)
Left area
Selection of main sensor sensing areas. (OUT 1,OUT 2 )
Left area
Right area
center
area
OFF
RL
Effective
OFF
RL
Inef
fective
Right area
Output operation mode
selection switch
Select the operation
mode for OUT 1
and OUT 2 with the
operation mode
selection switch.
Light-ON
Dark-ON
D.ON
L.ON
D.ON
L.ON
External control function
selection switch (Note 2)
Select whether to
perform selection of
sensing area with
the dipswitch or by
external input.
Dipswitches
External inputs
INT.
EXT
.
INT.
EXT.
Notes: 1) Not incorporated in PX-26.
2) Incorporated in PX-24ES and PX-23ES.
PX-22 PX-21 PX-24 PX-24ES PX-23ES
Setting method
Internal
settings
Area selection input (Note)
(PX-24ES and PX-23ES only)
Sensing area Input 1 Input 2 Input 3
All areas ineffective
―
LLL
Center area effective
―
H L L
Center, right and adjacent right
OUT 1 areas effective
―
L H L
Center left and adjacent left
OUT 1 areas effective
―
H H L
Center and left / right adjacent
OUT 1 areas effective
L L H
Center, right and adjacent left / right
OUT 1 areas effective
H L H
Center, left and adjacent left / right
OUT 1 areas effective
L H H
All areas effective
HHH
L: Low (0 to 1V), H: High (4.5 to 31 V, or open)
Note: Response time of area the selection input is 80 ms.
INT.
EXT.
INT.
EXT.
OFF
RL
OFF
RL
OFF
RL
OFF
RL

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
11
PX-24 PX-24ES PX-23ES PX-26
External sensitivity adjustment function
• The sensitivity can be adjusted, within the range set by
the manual sensitivity adjuster, by an analog voltage (0 to
+5 V) applied to the external sensitivity adjustment input.
The sensitivity varies with the magnitude of the applied
voltage.
Notes: 1) The sensitivity of the auxiliary sensor is not changed.
2) Sensitivity adjustment beyond the range set by the manual
sensitivity adjuster is not possible.
Extraneous light monitor function
(Not incorporated in PX-22 and PX-21)
• If the sensor receives modulated light other than its own
(including auxiliary sensor’s) light, the extraneous light
monitor output turns ON. The operation of the extraneous
light monitor output has absolutely no affect on sensing.
It is useful for recognizing presence of other sensors near
this sensor in case of intersecting AGV paths, etc.
Note: The extraneous light monitor output is not incorporated with a
short-circuit protection circuit. Do not connect it directly to a power
supply or a capacitive load.
PRECAUTIONS FOR PROPER USE
Sensitivity setting
• Sensitivity adjustment of PX-SB1 is performed with the
emitter volume. If sensitivity cannot be set to close range
even after adjusting the emitter volume, then an aux
sensor might be receiving the light from the main sensor.
If that is the case, adjust sensitivity with the emitter
volume and the receiver volume. For details, see the
instruction manual that comes with the product.
Connection with the main sensor
• Connect the main sensor connector attached cable to the
aux sensor connector attached cable.
• The spiral lead wire side of the main sensor connector
attached cable is the left aux sensor side.
Right aux sensor
Main sensor
Spiral lead wire
Left aux sensor
PX-SB1
•This sensor must always be used with the applicable
main sensor. This sensor does not work as a standalone
unit. (It cannot be used with PX-22 or PX-21.)
Selection of auxiliary area
• Aux area can be selected by aux area ineffective input of
the main sensor.
Ineffective input
Auxiliary left
OUT 1 area
Auxiliary right
OUT 1 area
Sensing area
Auxiliary left / right OUT 1
area ineffective
L L
Auxiliary left OUT 1 area
effective
H L
Auxiliary right OUT 1 area
effective
L H
Auxiliary left / right OUT 1
area effective
H H
L: Low (0 to 1 V), H: High (4.5 to 31 V or open)
Note: Aux area disable input has nothing to do with the external control
function selection switch of the main sensor.
Input voltage 0 V +5 V or open
Sensitivity
Minimum Maximum
Maximum sensitivity set by the
manual sensitivity adjuster
3) This wire should be insulated if it is not used.

12
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
PX-SB1 Auxiliary sensor
DIMENSIONS (Unit: mm in)
11
0.433
1.5
0.059
35
1.378
50
1.969
6 0.236
62
2.441
4
0.157
25
0.984
5
0.197
40.5
1.594
20.5
0.807
18
0.709
1
0.039
Center of
sensing
Sensitivity
adjuster cap
Beam-emitting
part
Beam-receiving
part
Operation
indicator (Red)
2-ø4.5 ø0.177
mounting holes
2-M4 nut seats
(on both sides) ø5.8 ø0.228 cable, 2 m 6.562 ft long
(with connector at the end)
Receiving adjuster (incorporated)
Emission adjuster
(incorporated)
The CAD data can be downloaded from our website.
PX-2□Main sensor
Note: PX-22 and PX-21 do not have this cable.
28.5
1.122
20
0.787
62
2.441
5
0.197 23.5
0.925
38.5
1.516
45°
45°
63
2.480
73
2.874
83
3.268
41.5
1.634
22
0.866
12
0.472
4.5
0.177
43
1.693
(40.5)
(1.594)
2.5
0.098 9
0.354 15
0.591
21.5
0.846
Center of
sensing
11 0.433
4-M4 threads, 4 deep
2-ø4.6 ø0.181 mounting holes
(ø10)(ø0.394)
ø6.7 ø0.264 cable, 0.5 m 1.640 ft long
(for input and output)
ø6.7 ø0.264 cable, 0.5 m 1.640 ft long (Note)
()
for auxiliary sensor connection;
with connector at the end
OUT 1 area operation indicator (Red)
OUT 2 area operation indicator (Yellow)

Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
13
1.7
0.067
9.1
0.358
31.9
1.256 0.3
0.012
5
0.197
15
0.591
11.5
0.453
20
0.787
47
1.850
21
0.827
t 2
t 0.079
4.5
0.177
12
0.472
16.5
0.650
4.8 0.189 9.4
0.370
MS-PX-2 Main sensor mounting bracket (Accessory for PX-2□)
Assembly dimensions
Mounting drawing with PX-24
Material: Cold rolled carbon steel (SPCC)
(Uni-chrome plated)
Four M4 (length 8 mm 0.315 in) screws with washers are attached.
1.7
0.067 9.1
0.358
9.4
0.370
31.9
1.256
16.5
0.650
0.3 0.012
5
0.197
15
0.591 11.5
0.453
20
0.787 47
1.850
21
0.827
t 2
t 0.079
4.8 0.189
4.5 0.177
12
0.472
Left side Right side
t 2
t 0.079 28.5
1.122
6.5
0.256 47
1.850
21
0.827
50
1.969
17
0.669
20
0.787
10.5
0.413
104
4.094
116
4.567
52
2.047
4.8
0.189
9.2
0.362
Center of sensing
OUT 1 area operation indicator (Red)
OUT 2 area operation
indicator (Yellow)
DIMENSIONS (Unit: mm in)The CAD data can be downloaded from our website.

14
Long Range & Wide Area Photoelectric Sensor PX-2 SERIES
DIMENSIONS (Unit: mm in)The CAD data can be downloaded from our website.
MS-NX5-1 Auxiliary sensor mounting bracket (Accessory for PX-SB1)
t 2
t 0.079
9.4 0.370
5.2
0.205
6.4
0.252
25 0.984
12
0.472
22
0.866
ø6.4 ø0.252 hole
40
1.575
5°
5°
4.5
0.177
50
1.969
15
0.591
30
1.181 72
2.835
25
0.984
6
0.236
25
0.984
25
0.984
29
1.142
2-ø4.5 ø0.177 holes
R55.9
R2.201
Assembly dimensions
25
0.984
6.4
0.252
ø6.4
ø0.252
12
0.472
t 2
t 0.079
Beam axis
10°
40 1.5751 0.039
72
2.835
22
0.866
5.2 0.205
21
0.827
40
1.575
(43)
(1.693)
11 0.433
50.5
1.988
Material: Cold rolled carbon steel (SPCC)
(Uni-chrome plated)
Two M4 (length 25 mm 0.984 in)
screws with washers and two M4 nuts are attached.
MS-NX5-2
Assembly dimensions
MS-NX5-3 Auxiliary sensor mounting bracket (Optional)
Assembly dimensions
Material: Cold rolled carbon steel (SPCC)
(Uni-chrome plated)
Two M4 (length 25 mm 0.984 in) screws with washers and
two M4 nuts are attached.
Material: Cold rolled carbon steel (SPCC)
(Uni-chrome plated)
Two M4 (length 25 mm 0.984 in) screws with washers and
two M4 nuts are attached.
Auxiliary sensor mounting bracket (Optional)
6
0.236
25
0.984
70 ±0.3
2.756 ±0.012
t 2
t 0.079
6
0.236
14
0.551
17
0.669
29
1.142
10
0.394
8
0.315
40 1.575
37
1.457
6
0.236
6.4
0.252
50 ±0.2
1.969 ±0.008
4.5
0.177
5°
5° 15
0.591
25
0.984
12
0.472
30
1.181
36.6
1.441
90 ±0.2
3.543 ±0.008
104 ±0.3
4.094 ±0.012
R28
R1.102
5
0.197
t 2
t 0.079
Beam axis
55.5
2.185
10°
90
3.543
104
4.094
6
0.236
6.4
0.252
14
0.551
25
0.984
11
0.433
40
1.575
t 2
t 0.079
50
1.969
18
0.709
25
0.984
5.5
0.217
6
0.236
2-ø4.5 ø0.177
holes
4.5
0.177
5°
5°
5.5
0.217
25
0.984
45
1.772
30
1.181 50 1.969 64 2.520
22
0.866
12
0.472
9.5
0.374
6.4
0.252
5
0.197
6
0.236
42
1.654
6.4
0.252
6.4
0.252
R55.9 ±0.2
R2.201 ±0.008
t 2
t 0.079
45
1.772
21
0.827
6.4
0.252
6.4
0.252
1
0.039
Beam axis
64
2.520
18
0.709
6
0.236
5
0.197
12
0.472
(43)
(1.693)
22
0.866
10.5 0.413
42
1.654
40
1.575
10°

Disclaimer
Theapplicationsdescribedinthecatalogareallintendedforexamplesonly.Thepurchaseofourproductsdescribedinthecatalogshallnotbe
regardedasgrantingofalicensetouseourproductsinthedescribedapplications.WedoNOTwarrantthatwehaveobtainedsome
intellectualproperties,suchaspatentrights,withrespecttosuchapplications,orthatthedescribedapplicationsmaynotinfringeany
intellectualpropertyrights,suchaspatentrights,ofathirdparty.
PrintedinJapan
IndustrialDeviceBusinessDivision
7-1-1,Morofuku,Daito-shi,Osaka574-0044,Japan
industrial.panasonic.com/ac/e/
ⓒ PanasonicIndustryCo.,Ltd. Specificationsaresubjecttochangewithoutnotice. 2022.6
PanasonicIndustryCo.,Ltd.