PRFDAW Series
Full Metal, Cylindrical, Long Sensing Distance,
Spatter-Resistance, Cable Connector Type
Features
Long sensing distance
High impact and wear resistance to friction with the work or
metallic brush (sensing face/housing material: stainless steel)
Reduced possibility of malfunction by aluminum scraps
Prevent malfunction due to spatter with PTFE coating
Excellent noise immunity with specialized sensor IC
Built-in surge protection circuit and output short over current
protection circuit
Stability indicator (green LED) and operation indicator (red LED)
: excellent visibility with the 360˚ ring type indicator (except for PRFDAWT08 model)
Equipped with the oil resistant cable
Protection structure: IP67 (IEC standard)
Please read “Safety Considerations”
in the instruction manual before using.
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.
Durability Test
Highly resistant to the impact of removing welding sludge attached to the sensing face
Continuous hitting test
Test conditions
Hitting object: 1.3kg of weight
Hitting speed: 48 times per 1 min
The number of hitting times: 300 thousand times
Test model: PRFDAW18
Electromagnetic Resistance Test
Metallic brush test
Test conditions
Testing object: stainless cup brush
Rotation speed: 80RPM
Testing time: 3 hours
Test model: PRFDAW18
Large current from welding generates magnetic field which can affect the proximity sensor to malfunction due to noise.
This product, however, can be used near strong noise without malfunctioning, thanks to excellent electromagnetic resistance.
This test is conducted in the environment of welding.
Test conditions
Welding current: 13,000A
Installation direction: front and side
Test model: PRFDAW Series
Diameter of
Minimum sensing distance between
sensing side
weld and sensor
Installation direction Front
Side
8mm
80mm
80mm
12mm
No effect from noise 50mm
18mm
30mm
50mm
30mm
120mm
110mm
※Minimum sensing distance can be different by welding
environment.
F-64
Full Metal, Cylindrical, Long Sensing Distance, Spatter-Resistance, Cable Connector Type
Effect of Aluminum Scraps
When aluminum scraps are attached or stacked at sensing side, the proximity sensor does not detect and sensing signal is OFF.
However, the below cases may occur to sensing signal. In this case, remove the scraps.
(1) W
hen the size of aluminum scraps (d) is bigger than 2/3 of the
(2) W
hen aluminum scraps are attached on the sensing side by
sensing side size (D)
external pressure
SENSORS
CONTROLLERS
(d)
(D)
External pressure
Model
Size
D (mm)
PRFDAWT08
6
PRFDAWT12
10
PRFDAWT18
PRFDAWT30
16
28
MOTION DEVICES
Aluminum scraps
SOFTWARE
Specifications
● DC 2-wire type
PRFDAWT08-2DO-IV
PRFDAWT12-3DO-IV
PRFDAWT18-7DO-IV
PRFDAWT30-12DO-IV
8mm
12mm
18mm
30mm
2mm
3mm
7mm
12mm
Shield (flush)
Max. 15% of sensing distance
12×12×1mm (iron)
12×12×1mm (iron)
30×30×1mm (iron)
54×54×1mm (iron)
0 to 1.4mm
0 to 2.1mm
0 to 4.9mm
0 to 8.4mm
12-24VDCᜡ (10-30VDCᜡ)
Max. 0.8mA
150Hz
80Hz
80Hz
50Hz
Max. 3.5V
Max. ±20% for sensing distance at ambient temperature 20℃
Max. 3 to 100mA
Over 50MΩ (at 500VDC megger)
1,000VAC 50/60Hz for 1 min
1.5mm amplitude at frequency 10 to 55Hz (for 1 min) in each X, Y, Z direction for 2 hours
500m/s2 (approx. 50G)
Shock
in each X, Y, Z direction
1,000m/s2 (approx. 100G) in each X, Y, Z direction for 10 times
for 10 times
Indicator
Stability indicator: Green LED, Operation indicator: Red LED
Environ- Ambient temperature -25 to 70℃, storage: -25 to 70℃
ment
Ambient humidity
35 to 95%RH, storage: 35 to 95%RH
Protection circuit
Surge protection circuit, output short over current protection circuit
Protection
IP67 (IEC standard)
Ø4mm, 2-wire, 300mm,
Ø5mm, 2-wire, 300mm, M12 connector
※3
M12 connector
Cable
AWG22, core diameter: 0.08mm, no. of cores: 60, insulator diameter: Ø1.25mm
Case/Nut: Stainless steel 303 (SUS 303, PTFE coated), Washer: Stainless steel 304 (SUS 304),
Material
Sensing side: Stainless steel 303 (SUS 303, PTFE coated, thickness of PRFDAWT08: 0.2mm,
PRFDAWT12/18: 0.4mm, RFDAWT30: 0.5mm), Oil resistant cable (gray): Oil resistant polyvinyl chloride (PVC)
Approval
ᜢ
※4
Weight
Approx. 80g (approx. 55g) Approx. 110g (approx. 83g) Approx. 132g (approx. 97g) Approx. 225g (approx. 170g)
※1: Use accessories (nut, washer) made of SUS. Or, sensing distance cannot be guaranteed.
※2: 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.
※3: Do not pull the Ø4mm cable with a tensile strength of 30N or over and the Ø5mm cable with a tensile strength of 50N or over.
It may result in fire due to the broken wire. When extending wire, use AWG22 cable or over within 200m.
※4: The weight includes packaging. The weight in parenthesis is for unit only.
※Environment resistance is rated at no freezing or condensation.
Model
Diameter of sensing side
※1
Sensing distance
Installation
Hysteresis
Standard sensing target
Setting distance
Power supply (operating voltage)
Leakage current
※2
Response frequency
Residual voltage
Affection by Temp.
Control output
Insulation resistance
Dielectric strength
Vibration
F-65
(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
PRFDAW Series
Dimensions
(unit: mm)
PRFDAWT8-2DO-IV
48
Ø15
13
300
28
4
M8×1
Stability indicator
(green)
Operation indicator
(red)
Ø4
M12
PRFDAWT12-3DO-IV
Ø21
46
17
300
33
4
M12×1
Stability indicator
(green)
Operation indicator
(red)
Ø5
M12
PRFDAWT18-7DO-IV
Ø29
50
24
300
36
M18×1
4
Stability indicator
(green)
Operation indicator
(red)
Ø5
M12
PRFDAWT30-12DO-IV
54
Ø42
5
F-66
300
40
36
M30×1.5
Stability indicator
(green)
Operation indicator
(red)
Ø5
M12
Full Metal, Cylindrical, Long Sensing Distance, Spatter-Resistance, Cable Connector Type
Control Output Diagram & Load Operating
● DC 2-wire type
SENSORS
Load
Brown
Sensing distance (Sn)
+V
Main circuit
Sensing
target
Load
Blue
Load
0V
NonUnstable
sensing sensing
area
area
CONTROLLERS
Stable sensing area
(Sn×Approx. 70%)
MOTION DEVICES
ON
OFF
Stability indicator ON
(green LED) OFF
Operation indicator ON
(red LED) OFF
SOFTWARE
※When the sensing target is placed over approx. 70% of sensing distance (Sn), the operation indicator (red LED) turns ON.
When the target is placed within approx. 70% of sensing distance (Sn), the stability indicator (green LED) turns ON.
Use the sensor at the position where the stability indicator turns ON.
Connections
(A)
Photoelectric
Sensors
● DC 2-wire type (IEC standard)
(B)
Fiber Optic
Sensors
Normally Open (N.O.)
2
3
1
4
Brown
Load
Blue
2
1
3
4
(C)
LiDAR
0V
Brown
Blue
+24VDC
(D)
Door/Area
Sensors
+24VDC
Load
(E)
Vision
Sensors
0V
(F)
Proximity
Sensors
※②, ③ are N·C (Not Connected) terminals.
※For more information about cable and specification, refer to the (I) Connectors/Cable Connectors/Sensor Distribution Boxes/Sockets
(G)
Pressure
Sensors
(H)
Rotary
Encoders
(I)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
F-67
PRFDAWT08-2DO-IV
Iron(SS401)
1.50
Stainless steel 364
(SUS364)
1.00
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
0.50
Sensing distance X (mm)
4.00
Iron(SS401)
3.00
Stainless steel 364
(SUS364)
2.00
Brass(C3601)
1.00
0.00
4 8 10 12 15 18 20 25 30 35 40 45 50 60 70 75 80 90 100
Aluminum(ALS052)
Copper(C1100)
4
10
One side length of sensing target d (mm)
PRFDAWT18-7DO-IV
80 100
PRFDAWT30-12DO-IV
15.00
8.00
Iron(SS401)
6.00
Stainless steel 364
(SUS364)
4.00
2.00
Sensing distance X (mm)
10.00
0.00
15
20
30
40
50
70
One side length of sensing target d (mm)
Brass(C3601)
Aluminum(ALS052)
Copper(C1100)
4
10
15
20
30
40
50
70
One side length of sensing target d (mm)
Iron(SS401)
12.00
6.00
Brass(C3601)
3.00
0.00
80 100
Stainless steel 364
(SUS364)
9.00
Aluminum(ALS052)
Copper(C1100)
4
10
15
20
30
40
50
70
One side length of sensing target d (mm)
Sensing Distance Feature Data by
Parallel (Left/Right) Movement
PRFDAWT08-2DO-IV
2.0
80 100
Sensing
area (Y)
Sensing
target
Detecting
Method
Sensing
distance (X)
Sensing distance X (mm)
5.00
2.00
Sensing distance X (mm)
Sensing
distance (X)
PRFDAWT12-3DO-IV
2.50
0.00
Detecting
Method
d
One side
length
Sensing Distance Feature Data by Target
Material and Size
Sensing
target
PRFDAW Series
PRFDAWT12-3DO-IV
PRFDAWT18-7DO-IV
PRFDAWT30-12DO-IV
3.0
7.0
12.0
11.0
1.7
6.0
2.5
9.0
2.0
1.5
8.0
Sensing area (mm)
Sensing area (mm)
1.0
5.0
Sensing area (mm)
Sensing area (mm)
1.5
1.3
10.0
4.0
7.0
6.0
5.0
3.0
4.0
0.7
1.0
0.1
2.0 1.5 1.0 0.5 0.0 0.5 1.0 1.5 2.0
Left ← Center → Right
Sensing area Y (mm)
F-68
3.0
2.0
0.4
2.0
0.5
3.0
2.0 1.0
0.0 1.0 2.0
Left ← Center → Right
Sensing area Y (mm)
3.0
1.0
6.0
1.0
4.0 2.0 0.0 2.0 4.0
Left ← Center → Right
Sensing area Y (mm)
6.0
15.0
10.0
5.0
0.0
5.0
10.0 15.0
Left ← Center → Right
Sensing area Y (mm)
Full Metal, Cylindrical, Long Sensing Distance, Spatter-Resistance, Cable Connector Type
Proper Usage
Load connections
SENSORS
Brown
Brown Load
+
-
+
POWER
-
Blue
Blue
CONTROLLERS
24VDC
Load
MOTION DEVICES
When using DC 2-wire type proximity sensor, the load must be connected, otherwise internal components may be damaged.
The load can be connected to either wire.
SOFTWARE
In case of the load current is small
● DC 2-wire type
Brown
Vs
R≤
(kΩ)
Io-Ioff
Load
Bleeder resistor(R)
Blue
+
-
Vs
Vs: Power supply,
(A)
Photoelectric
Sensors
Vs2
P>
(W)
R
Io: Min. action current of proximity sensor,
[ Ioff: Return current of load, P : Number of Bleeder resistance watt ]
(C)
LiDAR
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 dissipation.
(D)
Door/Area
Sensors
Mutual-interference & Influence by surrounding metals
(E)
Vision
Sensors
When several proximity sensors are mounted close to one another a malfunction of the may be caused due to mutual
interference. Therefore, be sure to keep a minimum distance between the two sensors as below chart indicates.
Do NOT connect the sensors more than three in parallel.
(F)
Proximity
Sensors
(G)
Pressure
Sensors
Parallel B
A
(H)
Rotary
Encoders
Face to Face
(I)
Connectors/
Connector Cables/
Sensor Distribution
Boxes/ Sockets
When sensors are mounted on metallic panel, it is required to protect the sensors from being affected by any metallic
object except target. Therefore, be sure to provide a minimum distance as below chart indicates.
m
Ød
n
ℓ
ℓ
ℓ
(unit: mm)
Item
A
B
ℓ
Ød
m
n
Model
(B)
Fiber Optic
Sensors
PRFDAWT08-2DO-IV
PRFDAWT12-3DO-IV
PRFDAWT18-7DO-IV
PRFDAWT30-12DO-IV
35
35
0
8
8
30
40
35
0
12
12
40
65
60
0
18
28
60
110
100
0
30
48
100
F-69