Omron E2KQ-X User manual

D-179E2KQ-X
E2KQ-X
Inductive Proximity Sensor
E2KQ-X
Proximity Sensor with Easy Sensing
Distance Adjustment and Teflon* Coating
Effective Oil and Chemical Resistance
• Oil and chemical-resistant Teflon case.
• Sensitivity adjuster ensures easy sensing distance
adjustment according to the sensing object.
• Incorporates a cord connector with an indicator pro-
viding high visibility.
* Teflon is a registered trademark of Dupont Company and Mitsui Du-
pont Chemical Company for their fluoride resin.
Ordering Information
* NC models available (E2KQ-X10ME2)
Characteristic data (typical)
Shape Sensing distance Output Operating
status Model
M18 DC 3-wire
NPN NO *
E2KQ-X10ME1
Sensing Distance vs. Sensing Object Sensing Object Thickness and Material vs. Sensing Distance
Unshielded 6 to
10 mm
Grounded metal
Ungrounded metal
Phenol resin
Glass
15
10
5
0
Sensing distance X (mm)
0 1020304050607080
Side length of sensing object d (mm)
#d
t=3
mm
X
Grounded metal
Ungrounded metal
Phenol resin
Acrylic resin
Wooden plate
Glass
15
10
5
0
Sensing distance X (mm)
0 5 10 15 20 25 30
Sensing object width t (mm)
#50
t
X
F502-EN2-04.book Seite 179 Dienstag, 26. Juli 2005 5:48 17

D-180 Capacitive Sensors
Output Circuit Diagram
DC 3-wire Models
Rating/Performance
* This sensing distance is possible with a standard sensing object. Refer to Engineering Data for sensing distances of other materials.
Operating
status Model Timing chart Output circuit
NO E2KQ-X10ME1
Item Model E2KQ-X
Sensing distance * 10 mm
Sensing distance adjustable range 6 to 10 mm
Differential distance 4% to 20% of sensing distance
Sensing object Conductors and dielectrics
Standard sensing object with grounded metal: 50 x 50 x 1t mm
Response frequency 35 Hz
Rated supply voltage
(operating voltage) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.
Current consumption 15 mA max.
Control output
Switching capacity 100 mA
Residual voltage 1.5 V max. (under load current of 100 mA with cable length of 2 m)
Indicator lamp Detection indicator (red LED)
Operating status
(with sensing object approaching) Refer to previous pages for details of operating chart of output circuits.
Protective circuits Reverse connection protection, surge absorber
Ambient temperature Operating: -10°C to 55°C, Storage: -25°C to 55°C (with no icing or condensation)
Ambient humidity Operating/Storage: 35% to 85%RH (with no condensation)
Temperature influence ±15% max. of sensing distance at 23°C in the temperature range of -10°C and 55°C
Voltage influence 2% max. sensing distance within a range of 80% to 120% of the rated supply voltage.
Insulation resistance 50 M min. (at 500 VDC) between energized parts and case
Dielectric strength 500 VAC 50/60 Hz for 1 min between energized part and case
Vibration resistance 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2for 3 times each in X, Y, and Z directions
Protective structure IEC IP66
Connection method Pre-wired models (standard length: 2 m)
Weight (Packed state) Approx. 150 g
Material
Case, Sensing
surface Fluororesin
Clamping nut
Accessories Instruction sheet and screwdriver for adjustment
Yes
No
Operates
Releases
H
L
ON
OFF
Sensing object
Load
(between brown
and black)
Output voltage
(between black
and blue)
Operation indicator
(red)
* 1. 100 mA max. (load current)
* 2. When a transistor is connected
Tr
Main
circuit
4.7kW
Brown
Blue
Black * 1
Output * 2
+V
0V
Load
F502-EN2-04.book Seite 180 Dienstag, 26. Juli 2005 5:48 17

D-181E2KQ-X
E2KQ-X
Precautions
Design
Effects of Surrounding Metals
If E2K-X is embedded in metal, maintain at least the following
distances between E2K-X and the metal.
* Ensure to ground the metal object, otherwise E2KQ-X will not be in stable op-
eration.
Effects of Surrounding Metal (Unit: mm)
If a mounting bracket is used, be sure that at least the follow-
ing distances are maintained.
Mutual Interference
If more than one Sensor is located face to face or in parallel,
provide sufficient space between adjacent Sensors to sup-
press mutual interference as indicated in the following dia-
gram.
Mutual Interference (Unit: mm)
Effect of High-frequency Electro-magnetic Field
E2KQ-X may malfunction if there is an ultrasonic washer,
high-frequency generator, transceiver, or inverter nearby. For
a typical measure refer to the "Noise" with Common precau-
tions of a photoelectric sensor in Rear B-page.
Installation
The tightening torque must not exceed the following value.
●Adjustment
Sensing object
The maximum sensing distance will decrease if the sensing
object is a metal or dielectric object that is not grounded.
• Sensing Object Material E2K-C can detect almost any
type of object. The sensing distance of E2K-C, however,
will vary with the electrical characteristics of the object, such
as the conductance and inductance of the object, and the
water content and capacity of the object. The maximum
sensing distance of E2K-C will be available if the object is
made of grounded metal.
• Ensure a constant ambient operating temperature during
the indirect detection of objects.
Miscellaneous
Ambient Conditions
Ensure that the E2K-X is free from sprayed water, oil, chemi-
cal, or condensation, otherwise E2K-X may malfunction by
detecting them as sensing objects.
Environment
E2KQ-X has a water-resistant design. To increase the reliabil-
ity of E2KQ-X in operation, however, it is recommended that
E2KQ-X is free from sprayed water or machining oil.
The cord is not coated with Teflon, which must be taken into
consideration when installing the E2KQ-X.
Dimensions (Unit: mm)
Correct Use
Model Length l d m n
E2KQ-X10ME1 30 75 18 90
Model Length A B
E2KQ-X10ME1 200 32
l
d dia.
Be sure to ground Metal
m
n
Effects of Surrounding Metal (Unit: mm)
Model Length G H
E2KQ-X10ME1 30 35
G
H
AB
Model Tensile strength
(torque)
E2KQ-X10ME1 0.6 Nm
E2KQ-X10ME1
24
Fluoride resin 61.8
20 8
16 dia.
M18 x 1.5
Fluoride resin
Two, clamping nuts
coated with fluoride resin
Operation indicator (red) Indicator
Sensitivity adjuster
18.5 dia.+0.5
-0
6-dia. three conductors vinyl-insulated round cable
(cross-sectional area of conductors: 0.5 mm2;
insulation diameter: 1.9 mm) Standard length: 2 m
Mounting Dimensions
F502-EN2-04.book Seite 181 Dienstag, 26. Juli 2005 5:48 17

D-182 Capacitive Sensors
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. D078-E2-02-X
F502-EN2-04.book Seite 182 Dienstag, 26. Juli 2005 5:48 17