Autonics CR Series User manual

D-56
CR Series
Electric capacitive type proximity sensor
Model
CR18-8DN
CR18-3DP
CR18-8DN2
CR30-15DN
CR30-15DP
CR30-15DN2
CR18-8AO
CR18-8AC
CR30-15AO
CR30-15AC
Sensing distance 8mm 15mm 8mm 15mm
Hysteresis Max. 20% of sensing distance
Standard sensing target 50×50×1mm (Iron)
Sensing distance 0 to 5.6mm 0 to 10.5mm 0 to 5.6mm 0 to 10.5mm
Power supply
(Operating voltage)
12- 24VDC
(10 -30VDC)
100-240VAC 50/60Hz
(85-264VAC)
Current consumption Max. 15mA -
Leakage current - Max. 2.2mA
Response frequency※150Hz 20Hz
Residual voltage Max. 1.5V Max. 20V
Affection by Temp. Max. ±10% for sensing distance at ambient temperature 20℃
Control output Max. 200mA 5 to 200mA
Insulation resistance Min. 50MΩ (at 500VDC megger)
Dielectric strength 1,500VAC 50/60Hz for 1minute
Vibration 1mm amplitude at frequency of 10 to 55Hz (for 1 min) in each of X, Y
, Z directions for 2 hours
Shock 500m/s² (approx. 50G) in each of X, Y, Z directions for 3 times
Indicator Operation indicator: Red LED
Environ-
ment
Ambient temperature -25 to 70℃, storage: -30 to 80℃
Ambient humidity 35 to 95%RH, storage: 35 to 95%RH
Protection circuit Reverse polarity protection, Serge protection Serge protection circuit
Protection structure IP66 (IEC standard) IP65 (IEC standard) IP66 (IEC standard) IP65 (IEC standard)
Cable Ø4mm, 3-wire, 2m Ø5mm, 3-wire, 2m Ø4mm, 2-wire, 2m Ø5mm, 2-wire, 2m
(AWG22, Core diameter: 0.08mm, Number of cores: 60, Insulator out diameter: Ø1.25mm)
Material
CR18 - Case/Nut: PA6, Standard cable (Black): Polyvinyl chloride (PVC)
CR30 - Case/Nut: Nickel plated Brass, Washer: Nickel plated Iron, Sensing surface: PBT,
Standard cable (Black): Polyvinyl chloride (PVC)
Weight※2Approx. 88g
(approx. 76g)
Approx. 243g
(approx. 206g)
Approx. 82g
(approx. 70g)
Approx. 237g
(approx. 200g)
Features
● Sensing of iron, metal, plastic, water, stone, wood etc.
● Long life cycle and high reliability
● DC type: Built-in surge protection circuit, reverse polarity
protection circuit
AC type: Built-in surge protection circuit
● Easy to adjust of the sensing distance with sensitivity
adjuster
● Red LED operation indicator
● Easy to control of level and position
Specifications
Type
※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 parentheses in for unit only.
※Environment resistance is rated at no freezing or condensation.
Appearances Model
M18
CR18-8DN
CR18-8DP
CR18-8DN2 ※
M30
CR30-15DN
CR30-15DP
CR30-15DM2 ※
Appearances Model
M18
CR18-8AO
CR18-8AC
M30
CR30-15AO
CR30-15AC
DC 3-wire type AC 2-wire type
※ mark can be customized.
Please read “Caution for your safety” in operation
manual before using.

D-57
Electric Capacitive type
Dimensions
● CR18-8
● CR30-15
Ø26.5
Ø42
71.8
71
55
53.3
M18×1
Ø4
Ø5
2,000
2,000
8
10
5
24
35
M30×1.5
(unit: mm)
Control Output Diagram and Load
Operation
Connections
NPN output type
Main circuit
10kΩ
Load
+V
0V
Black
Brown
Blue
PNP output type
Main circuit
10kΩ
Black
Brown
Blue
Load
+V
0V
DC 3-wire type
Load
Blue
Brown
Main circuit
AC
POWER
AC 2-wire type
DC 3-wire type
AC 2-wire type
CR18-8AO
100-
240VAC
50/60Hz
<PA10-U>
~
~
Brown
Brown Load
Load
Blue
Blue
Black
Sensing
target
Presence
None
Load
(brown-black)
Operation
Indicator
(red LED)
Operation
Return
H
L
ON
OFF
N.O. N.C.
Output
voltage
(black-blue)
N.O. N.C.
Output
voltage
(black-blue)
Operation
Indicator
(red LED)
Load
(brown-black)
Sensing
target
Presence
None
Operation
Return
H
L
ON
OFF
N.O. N.C.
Sensing
target
Load
Operation
Indicator
(red LED)
Presence
None
Operation
Return
ON
OFF

D-58
CR Series
Sensitivity Adjustment
Please turn potention VR to set sensitivity as below procedure.
※When there is distance uctuation between proximity sensor and the target, please adjust 2 at the farthest distance from
this unit.
※Turning potention VR toward clockwise, it will be max., or turning toward counter clockwise, it will be min. The number of
adjustment should be 15±3 revolution and if it is turned to the right or left excessively, it will not stop, but it idles without
breakdown.
※( ) is for Normally closed type.
The sensing distance will be changed by grounding status of capacitive proximity sensor and the target[50×50×1mm(Iron)].
Please check the material when installing the sensor and selecting the target.
● CR18 type ● CR30 type
1. Without a sensing object, turn the potention VR to the right
and stop at the proximity sensor is ON (OFF).
3. If the difference of the number of potention VR rotation
between the ON (OFF) point and the OFF (ON) point is
more than 1.5 turns, the sensing operation will be stable.
4. If it is set in sensitivity adjustment position of potention
VR at center between 1 and 2 , sensitivity setting will be
completed .
2.
Put the object in right sensing position, turn the potention
VR to the left and stop at the proximity sensor is OFF (ON).
Stop at ON (OFF) position
It is stable when it is
over 1.5 turns Adjustment completed
OFF position
(ON position)
OFF position
(ON position)
ON position
(OFF position)
ON position
(OFF position)
Stop at OFF(ON) position
Grounding
Ground condition
(Switch b) ON OFF
Operating distance
(mm) 8 4
Ground
condition
Switch a ON OFF ON OFF
Switch b ON ON OFF OFF
Operating distance (mm) 15 18 6 6
Sensing target
Sensing target

D-59
Electric Capacitive type
Mutual-Interference & Influence By Surrounding Metals
When several proximity sensors are mounted closely, malfunction of sensor may be caused due to mutual interference.
Therefore, be sure to keep a minimum distance between the two sensors as below charts.
When sensors are mounted on metallic panel, you must prevent the sensors from malfunction by any metallic object.
Therefore, be sure to keep a minimum distance as below charts.
Sensing distance may be different by electrical characteristic of sensing target(conductivity, non dielectric constant)
and status of water absorption, size etc.
It may cause malfunction by machinery which generate high frequency of electrical eld such as a washing machine etc.
There is water or oil on surface of sensing part, it may cause malfunction.
If the bottle for sensing of level is coated by oil etc., it may cause malfunction.
Especially, 15mm type has high sensitivity for induced objects, please be careful of waterdrops.
Do not let the oil or oil liquid is owed into the sensor because the case is made by plastic.
Model
Item CR18 CR30
A 48 90
B 54 90
Model
Item CR18 CR30
ℓ20 10
Ød 54 90
m 24 45
n 54 90
(unit: mm)
(unit: mm)
A
B
ℓ
Ød
Face to Face
Parallel
m
n
Materials
Materials of sensing targets
Effect by high frequency electrical field
Surrounding environment
Organic solvents