PRA Series
Cylindrial, Spatter-Resistance, Cable Type Proximity Sensor
Features
● Prevent malfunction due to welding spatter with PTFE coating
● Improved the noise immunity with dedicated IC
● Built-in reverse polarity protection circuit (DC 3-wire type)
● Built-in surge protection circuit
● Built-in output short over current protection circuit (DC type)
● IP67 protection structure (IEC standard)
● Replaceable for spatter-resistance type limit switches
Please read “Safety Considerations”
in the instruction manual before using.
~l&
____
The Characteristic of Spatter-Resistance Type
~
The hot arc from arc welding machine is adhesive even with metals or plastics.
Therefore, normal proximity sensor might have malfunction even though there are no sensing object if the arcs are put on
the sensing surface. The arcs are not adhered on the sensing part of the spatter-resistance type proximity sensor as the
part is coated with PTFE against thermal resistance.
Also, the protection cover sold optionally has the same function.
Specifications
● DC 2-wire type
PRAT12-2
Model
Diameter of the sensing side 12mm 18mm 30mm
Sensing distance 2mm 5mm 10mm
Installation Shield (ush)
Hysteresis Max. 10% of sensing distance
Standard sensing target 12×12×1mm (iron) 18×18×1mm (iron) 30×30×1mm (iron)
Setting distance 0 to 1.4mm 0 to 3 5mm 0 to 7mm
Power supply
(opera ing voltage)
Leakage current Max. 0.6mA
Response frequency
Residual voltage
Aection by Temp. Max. ±10% for sensing distance at ambient temperature 20℃
Control output 2 to 100mA
Insulation resistance Over 50MΩ (at 500VDC megger)
Dielectric strength 1,500VAC 50/60Hz for 1 min (between all terminals and case)
Vibra ion 1mm amplitude at frequency 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock 500m/s² (approx. 50G) in each X, Y, Z directions for 3 times
Indicator Operation indicator: Red LED
Ambient temperature -25 to 70℃, storage: -30 to 80
Environ-
I
ment
Ambient humidity 35 to 95%RH, storage: 35 to 95%RH
I
Protec ion circuit Surge protection circuit, output short over current protection circuit
Protec ion structure IP67 (IEC standard)
Cable
Material
Approval
3
※
Weight
※
1: The response frequency is the average value. The standard sensing target is used and the width is set as 2 imes of the standard
sensing target, 1/2 of the sensing distance for the distance.
※
2: Before using non-polarity type, check the condition of connected device because residual voltage is 5V.
※
3: The weight includes packaging. The weight in parenthesis in for unit only.
※
For more information about cable and specication, refer to the
※
of model name is for power type. 'D' is 12-24VDC, 'X' is non-polarity 12-24VDC.
The '
□
※
Environment resistance is rated at no freezing or condensation.
※
2
※
PRAT12-2DC
PRAT12-2DO-V
PRAT12-2DC-V
12-24VDC
(10-30VDCᜡ)
1
1.5kHz 500Hz 400Hz
Max. 3.5V (non-polarity type is max. 5V)
Ø4mm, 2-wire, 2m Ø5mm, 2-wire, 2m
AWG22, Core diameter: 0.8mm, Number of cores: 60, Insulator diameter: Ø1.25mm
Case/Nut: PTFE coated brass, Washer: PTFE coated iron, Sensing surface: PTFE,
Standard cable (black): Polyvinyl chloride (PVC), Oil resistant cable (gray): Oil resistant polyvinyl chloride (PVC)
CE:
Approx. 84g (approx. 72g) Approx. 122g (approx. 110g) Approx. 207g (approx. 170g)
~I
CE:
※
When the
D
O
□
□ □ □
ᜡ
PRAT18-5
PRAT18-5
PRAT18-5DO-V
PRAT18-5DC-V
℃
(I) Connectors/Cable Connectors/Sensor Distribution Boxes/Sockets
D
O
□
D
C
model name is X, it is non-polarity model.
□
PRAT30-10
PRAT30-10
PRAT30-10DO-V
PRAT30-10DC-V
D
O
□
D
C
F-128
Autonics
Cylindrial, Spatter-Resistance, Cable Type
Specifications
● DC 3-wire type
PRA18-5DN
PRA18-5DP
PRA18-5DN2
PRA18-5DP2
Model
Diameter of the sensing side
PRA12-2DN
PRA12-2DP
PRA12-2DN2
PRA12-2DP2
12mm 18mm 30mm
Sensing distance 2mm 5mm 10mm
Installa ion Shield (ush)
Hysteresis Max. 10% of sensing distance
Standard sensing target 12×12×1mm (iron) 18×18×1mm (iron) 30×30×1mm (iron)
Setting distance 0 to 1.4mm 0 to 3.5mm 0 to 7mm
Power supply
(operating voltage)
Current consumption Max. 10mA
Response frequency
12-24VDCᜡ
(10-30VDCᜡ)
1
※
1.5kHz 500Hz 400Hz
Residual voltage Max. 1.5V
Aection by Temp.
Max. ±10% for sensing distance at ambient temperature 20℃
Control output Max. 200mA
Insulation resistance Over 50MΩ (at 500VDC megger)
Dielectric strength 1,500VAC 50/60Hz for 1 min
Vibration 1mm amplitude at frequency 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock 500m/s² (appox. 50G) in each X, Y, Z direction for 3 times
Indicator Operation indicator: Red LED
Ambient temperature
Environ-
I
ment
Ambient humidity
I
-25 to 70℃, storage: -30 to 80
℃
35 to 95%RH, storage: 35 to 95%RH
Protection circuit Surge protec ion circuit, reverse polarity protection circuit, output short over current protection circuit
Protection structure IP67 (IEC standard)
Cable
Material
Approval
Weight
2
※
Ø4mm, 3-wire, 2m Ø5mm, 3-wire, 2m
AWG22, Core diameter: 0.8mm, Number of cores: 60, Insulator diameter: Ø1.25mm
Case/Nut: PTFE coated brass, Washer: PTFE coated iron, Sensing surface: PTFE, Standard cable (black): Polyvinyl chloride (PVC)
ᜢ
Approx. 84g (approx. 72g) Approx. 122g (appox. 110g) Approx. 207g (approx. 170g)
● AC 2-wire type
Model
Diameter of the sensing side
PRA12-2AO
PRA12-2AC
12mm 18mm 30mm
Sensing distance 2mm 5mm 10mm
Installa ion Shield (ush)
Hysteresis Max. 10% of sensing distance
Standard sensing target 12×12×1mm (iron) 18×18×1mm (iron) 30×30×1mm (iron)
Setting distance 0 to 1.4mm 0 to 3.5mm 0 to 7mm
Power supply
(operating voltage)
Leakage current Max. 2.5mA
Response frequency
100-240VACᜠ
(85-264VACᜠ)
1
※
20Hz
Residual voltage Max. 10V
Aection by Temp.
Max. ±10% for sensing distance at ambient temperature 20℃
Control output 5 to 150mA 5 to 200mA
Insulation resistance Over 50MΩ (at 500VDC megger)
Dielectric streng h 2,500VAC 50/60Hz for 1 min
Vibra ion 1mm amplitude at frequency 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
Shock 500m/s² (approx. 50G) in each X, Y, Z direction for 3 times
Indicator Operation indicator: Red LED
Environment
Ambient temperature
I
Ambient humidity
I
-25 to 70℃, storage: -30 to 80
35 to 95%RH, storage: 35 to 95%RH
Protection circuit Surge protection circuit
Protection structure IP67 (IEC standard)
Cable
Material
Insulation type
Approval
2
※
Weight
1: The response frequency is the average value. The standard sensing target is used and the width is set as 2 times of the standard
※
sensing target, 1/2 of the sensing distance for the distance.
2: The weight includes packaging. The weight in parenthesis in for unit only.
※
Environment resistance is rated at no freezing or condensa ion.
※
Ø4mm, 2-wire, 2m Ø5mm, 2-wire, 2m
AWG22, Core diameter: 0.8mm, Number of cores: 60, Insulator diameter: Ø1.25mm
Case/Nut: PTFE coated brass, Washer: PTFE coated iron, Sensing surface: PTFE, Standard cable (black): Polyvinyl chloride (PVC)
Double insulation or reinforced insulation (Mark: , Dielectric strength between the measuring input part and the power part: 1.5kVAC)
CE
Approx. 78g (approx. 66g) Approx. 118g (approx. 106g)
PRA18-5AO
PRA18-5AC
℃
[Q]
I
Autonics
PRA30-10DN
PRA30-10DP
PRA30-10DN2
PRA30-10DP2
I
PRA30-10AO
PRA30-10AC
Approx. 207g (approx. 170g)
I
F-129
SENSORS
CONTROLLERS
MOTION DEVICES
SOFTWARE
(A)
Photoelectric
Sensors
(B)
Fiber Optic
Sensors
(C)
LiDAR
(D)
Door/Area
Sensors
(E)
Vision
Sensors
(F)
Proximity
Sensors
(G)
Pressure
Sensors
(H)
Rotary
Encoders
(I)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
PRA Series
Dimensions
~
(unit: mm)
PRA12-2D
•
~
PRA18-5D / PRAT18-5D
•
i i
PRA30-10D / PRAT30-10D
•
/ PRAT12-2D
□ □
Ø21
17
32
4
□
Ø29
24
29 5
4
□ □
Ø42
35
38.5
[;J [;J
~ ~
_JI
5
43
47 5
58.5
Operation
M12×1
□
Operation
M18×1
M30×1.5
2000
indicator
2000
indicator
Ø4
Ø5
2000
Operation
indicator
Ø5
PRA12-2A
•
Ø21
17
□
~
PRA18-5A
•
Ø29
24
PRA 30-10A
•
Ø42
35
□
4
35.8
4
□
38.5
5
__JI
49
60
58.5
Operation
M12×1
Operation
M18×1
M30×1 5
2000
indicator
200053.8
indicator
Ø5
2000
Operation
indicator
Ø4
Ø5
Control Output Diagram and Load Operation
~
DC 2-wire type
© ©
Main circuit
Brown
Blue
Load
+V
0V
Sensing
target
Load
Operation
Indicator
(red LED)
Presence
None
Operat on
Return
ON
OFF
N.O.
N.C.
DC 3-wire type
NPN output type
Main circuit
F-130
10kΩ
Brown
Black
Blue
Load
+V
0V
Sensing
target
Load
(brown-black)
Output
voltage
(black-blue)
Operation
Indicator
(red LED)
Presence
[
None
Operation
Return
H
L
ON
OFF
N.O. N.C.
_O_
Autonics
PNP output type
AC 2-wire type
Brown
100-240VAC
Main circuit
Main circuit
10kΩ
Blue
Brown
Black
Blue
Load
50/60Hz
Load
+V
0V
Sensing
target
Load
Operation
Indicator
(red LED)
Sensing
target
Load
(brown-black)
Output
voltage
(black-blue)
Operation
Indicator
(red LED)
Presence
None
Operation
Return
ON
OFF
Presence
None
Operation
Return
H
L
ON
OFF
N.O.
N.C.
N.O. N.C.
Cylindrial, Spatter-Resistance, Cable Type
Sensing Distance Feature Data by Target Material and Size
PRAT12-2D
•
2.50
2.50
2.00
2.00
Ji.,
1.50
1.50
1.00
1.00
Sensing distance X (mm)Sensing distance X (mm) Sensing distance X (mm)Sensing distance X (mm)
0.50
0.50
,,
I
I
~
...
..
T.
;...,-.
-
,
PRA12-2A
□ □
-
-
-
:
: :
-
-
-
-
T T
.
.
.
:
'.' .
·+·+·
---
.
r.
·+·
-
-
. . .
:
--
.
--
Iron(SS401)
Stainless steel 364
(SUS364)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
PRAT18-5D
•
6.00
5.00
/"
4.00
J
3.00
,
2.00
•
i--:
.,.
"'
..
Sensing distance X (mm)
1.00
~
:
-
:
□
,
PRA18-5A
T
Detecting
Method
Sensing
distance (X)
d
target
length
Sensing
One side
Iron(SS401)
Stainless steel 364
(SUS364)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
SENSORS
CONTROLLERS
MOTION DEVICES
SOFTWARE
0.00
0.00
4
4 8 10 12
PRAT30-10D
•
12.00
10.00
8.00
6.00
4.00
2.00
0.00
4 8 10 12
PRA12-2D PRA18-5D
•
2.50
2.50
2.00
2.00
1.50
1.50
1.00
1.00
0.50
0.50
0.00
0.00
4
PRA30-10D
•
12.00
8
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
10 12
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
One side length of sensing target d (mm)
One side length of sensing target d (mm)
,
PRA30-10A
□ □
_v
/
/!.-
,/'
,7
t
Jl
.
:.
,1
•.·
,,,
:
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
One side length of sensing target d (mm)
□
I
,;
- - - -
8
10 12
... -...
T
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
One side length of sensing target d (mm)
One side length of sensing target d (mm)
□
-
-
r
l
:
:
•
- - -- - -
T -
Iron(SS401)
-
-
-
-
-
:
: :
: :
...
-
:.1
.,,.
-
!
...
-·
.
·-
-·
Stainless steel 364
(SUS364)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
Iron(SS401)
Stainless steel 364
(SUS364)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
0.00
4 8 10 12
•
6.00
5.00
,....,,,,.
4.00
-
i
3.00
I
...
2.00
I
r
..
~,,
1.00
0.00
4 8 10 12
"''
Sensing distance X (mm)
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
One side length of sensing target d (mm)
□
_.,
...
-
-
-
-
- -
-
-
.
.
:
. ' .
·+·
.
:
...
:
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
One side length of sensing target d (mm)
-
: :
...
-
-
:
:
-
:~
-
-
.
:
Iron(SS401)
Stainless steel 364
(SUS364)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
(A)
Photoelectric
Sensors
(B)
Fiber Optic
Sensors
(C)
LiDAR
(D)
Door/Area
Sensors
(E)
Vision
Sensors
(F)
Proximity
Sensors
(G)
Pressure
Sensors
(H)
Rotary
Encoders
(I)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
10.00
8.00
6.00
4.00
Sensing distance X (mm) Sensing distance X (mm)
2.00
0.00
4
!l{"
~v
I
;
.
:.
h
....
~
'f
8
10 12
One side length of sensing target d (mm)
V
-.
-
-
-
..
.
..
. .
..
:
: t.J :
15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
-
- -
-
:..:
:
-
-
-
-·
!.!
,.:
:
:.!
'
Iron(SS401)
Stainless steel 364
(SUS364)
.
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
Autonics
F-131
PRA Series
Sensing Distance Feature Data by Parallel (Left/Right) Movement
~
Detecting
Method
Sensing
area (Y)
~11-
Sensing
target
tl
Sensing
distance (X)
PRAT12-2D
•
2.0
1.7
1.5
1.3
1.0
0.7
0.4
0.1
4.0
3.0 2.0 1.0
PRA12-2D
•
2.0
,
PRA12-2A
□ □
0.0 1.0
Left ← Center → Right
Sensing area Y (mm)
□
2.0 3.0 4.0
,
PRAT18-5D
•
5.0
4.0
3.0
2.0
1.0
10.0 8.0
PRA18-5D PRA30-10D
•
5.0
PRA18-5A
□ □
6.0 4.0 2.0 0.0 2.0 4.0 6.0 8.0 10.0
Left ← Center → Right
Sensing area Y (mm)
□
PRAT30-10D
•
10.0
8.0
6.0
4.0
2.0
10.0 8.0
•
10.0
,
PRA30-10A
□ □
6.0 4.0 2.0 0.0 2.0 4.0 6.0 8.0 10.0
Left ← Center → Right
Sensing area Y (mm)
□
1.7
1.5
1.3
1.0
Sensing distance X (mm) Sensing distance X (mm)
0.7
0.4
0.1
4.0
F-132
3.0 2.0 1.0
Left ← Center → Right
Sensing area Y (mm)
0.0 1.0
2.0 3.0 4.0
4.0
3.0
Sensing distance X (mm) Sensing distance X (mm)
2.0
1.0
10.0 8.0 6.0 4.0 2.0 0.0 2.0 4.0 6.0 8.0 10.0
Left ← Center → Right
Sensing area Y (mm)
Autonics
8.0
6.0
Sensing distance X (mm) Sensing distance X (mm)
4.0
2.0
10.0 8.0
6.0 4.0 2.0 0.0 2.0 4.0 6.0 8.0 10.0
Left ← Center → Right
Sensing area Y (mm)
Cylindrial, Spatter-Resistance, Cable Type
Connections
DC 2-wire type AC 2-wire type
Brown
Blue
Brown
Blue
Load
+V
0V
+V
0V
Brown
Blue
Brown
Blue
LoadLoad
Load
100-240VAC
100-240VAC
SENSORS
CONTROLLERS
MOTION DEVICES
SOFTWARE
※
The load can be connected to either wire.
※
No need to consider polarity for non-polarity type of power supply.
Proper Usage
Load connections
Brown
+
-
Blue
<DC 2-wire type & AC 2-wire type>
POWER
Brown
Load
+
Blue
Load
<DC 2-wire type>
-
24VDC
When using DC or AC 2-wire type proximity sensor, the load must be connected otherwise internal components may be
damaged. The load can be connected to either wire.
In case of the load current is small
● AC 2-wire type
● DC 2-wire type
Brown
Blue
Brown
Blue
Load
' '
'-------wv------j
Bleeder resistor (R)
110VAC : Min. 20kΩ 3W
220VAC : Min. 39kΩ 10W
Load
'------,WV------'
Bleeder resistor (R)
AC
POWER
+
Vs
-
If the load current is under 5mA, please make sure the
residual voltage is less than the return voltage of the load
by connecting a bleeder resistor in parallel with the load as
shown in the diagram.
V
s
R ≤
(kΩ)
I
[I: Action current of load, R: Bleeder resistance, P: Permissible power]
Please make the current on proximity sensor smaller than the
return current of load by connecting a bleeder resistor in
parallel.
※
W value of Bleeder resistor should be bigger for proper heat.
V
s
R ≤
Vs: Power supply,
[
Ioff: Return current of load,
(kΩ)
Io-Ioff
Io: Min. action current of proximity sensor
P: Number of Bleeder resistance watt
Mutual-interference & Influence by surrounding metals
When several proximity sensors are mounted close to one another a malfunction of th may be caused due to mutual
interference. Therefore, be sure to provide a minimum distance between the two sensors as below chart indicates.
P >
Brown
Load
Blue
Load
<AC 2-wire type>
2
V
s
(W)
R
2
V
s
P >
(W)
R
100240VAC
50/60Hz
(A)
Photoelectric
Sensors
(B)
Fiber Optic
Sensors
(C)
LiDAR
(D)
Door/Area
Sensors
(E)
Vision
Sensors
(F)
Proximity
Sensors
(G)
Pressure
Sensors
(H)
Rotary
Encoders
(I)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
]
B
A
Face to Face
Parallel
When sensors are mounted on metallic panel, you must prevent the sensors from being aected by any metallic object
except target. Therefore, be sure to provide a minimum distance as below chart indicates.
Model
Item
~
m
Ød
~~J~j
ℓ
ℓ
ℓ
A 12 30 60
B 24 36 60
n
ℓ
Ød 12 18 30
m 6 15 30
n 18 27 45
PRAT12-2D
PRA12-2D
PRA12-2A
0 0 0
□ □ □
□
□
PRAT18-5D
PRA18-5D
PRA18-5A
□ □
□
(unit: mm)
PRAT30-10D
PRA30-10D
PRA30-10A
Autonics
□
F-133
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