Omron E2CA-AL4E Linear output proximity sensor with high-accuracy resolution Datasheet

Inductive Proximity Sensor
E2CA
Linear Output Proximity Sensor with
High-accuracy Resolution
Resolution is 0.05% of the maximum sensing
distance. The model with a sensing distance of
1.2 mm ensures a resolution of 0.6 om.
Models with response frequencies ranging from 10
to 3 kHz are available.
The M30-size model ensures a sensing distance of
10 mm.
Satisfies IEC IP67 requirements, thus detecting the
displacement of metal objects without being
influenced by water and oil spray.
The E2CA has a standard linear output of 4 to
20 mA and connects to the Linear Discrimination
Unit, Digital Panel Meter, and I/O Unit of the
Programmable Controller.
The E2CA’s compact amplifier can be plugged into
surface mounting sockets thus greatly reducing
wiring effort and ensuring easy mounting.
Ordering Information
Shield
Shielded
Size
Response frequency
Sensor Unit
Amplifier Unit
Sensing
g
distance
di
t
(S
(Sn))
Linear output
M8
0.3 to 1.5 mm
10 kHz
1 kHz
E2CA-XIR5A
E2CA-AL4C
E2CA-AN4C
M12
0.4 to 2 mm
10 kHz
800 Hz
E2CA-X2A
E2CA-AL4D
E2CA-AN4D
M18
1 to 5 mm
5 kHz
350 Hz
E2CA-X5A
E2CA-AL4E
E2CA-AN4E
M30
2 to 10 mm
3 kHz
100 Hz
E2CA-X10A
E2CA-AL4F
E2CA-AN4F
Switching
output
DC
AC
1
E2CA
E2CA
Application Examples
Detection of Metals on Other Metals
Counts the number of gear teeth.
Detects mounting screws, rivets, and soldering condition
Detection of Loosened Screws
Discrimination of Materials
E2CA Amplifier Unit
E2CA Amplifier
Unit
E2CA
E2CA
Brass
Improper screwing
Iron
E2CA
Amplifier
Unit
K3TS
Loosened
Copper
K3TS
K3TS
Output
Output
Output
Measurement of Sheet Angles
Measurement of Sheet Thickness
Measures leaned press molds and elevated boards
E2CA
Amplifier
Unit
E2CA E2CA
Measurement of External Dimensions
E2CA Amplifier
Unit
E2CA
Metal plate
E2CA Amplifier Unit
K3TS
K3TS
E2CA Amplifier Unit
Sensing
Head
E2CA
Output
Discrimination of Shapes
Measurement of Object Deformations
Detects top and bottom sides of metal caps
and surface and back sides of nuts
E2CA Amplifier
Unit
E2CA
E2CA
E2CA
Amplifier
Unit
K3TS
K3TS
Output
Output
2
Output
K3TS
Alarm output
Metal object
E2CA
E2CA
Specifications
Sensor model
Item
E2CA-X1R5A
Amplifier model
E2CA-AN4C
Supply voltage (operating voltage range)
100 to 240 VAC
50/60 Hz
(90 to 264 VAC)
12 to 24 VDC
(10 to 30 VDC),
ripple (p-p): 10%
max.
100 to 240 VAC
50/60 Hz
(90 to 264 VAC)
12 to 24 VDC
(10 to 30 VDC),
ripple (p-p): 10%
max.
Current consumption
60 mA max.
70 mA max.
60 mA max.
70 mA max.
Sensing object
Ferrous metal
Sensing range
(with standard sensing object)
0.3 to 1.5 mm (8 x 8 x 1 mm iron)
Linear output
p
characteristics
h
t i ti
Resolution
0.05% FS
Linearity
‒2% FS
‒1.5% FS
Response frequency
(see note 1)
10 kHz (--1 dB)
10 kHz (--1 dB)
Differential travel
2% to 5% of rated sensing distance
Response frequency
(see note 2)
1 kHz
Switching
g output
p
characteristics
h
t i ti
Sensitivity
adjustment
adjust
e t
f
function
i
E2CA-AL4C
E2CA-X2A
E2CA-AN4D
E2CA-AL4D
0.4 to 2 mm (12 x 12 x 1 mm iron)
800 Hz
Sensitivity adjustment
Adjustments of switching output within sensing range
(switching output)
Linear output
4 mA 4-mA adjustment at 20% of rated sensing distance
current
20 mA 20-mA adjustment at rated sensing distance
adjustment
Output
Linear output
(see note 3)
4 to 20 mA (with permissible load resistance of 0 to 300 Y)
Switching output
100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V
Switching output mode
Normally open or normally closed (selectable with selector on front panel)
Cord length compensation
3 or 5 m (selectable with selector on front panel)
Indicators
POWER, SPAN (linear range), and OPER (switching output) indicators
Ambient temperature
Operating: --25flC to 70flC (Sensor) and --10flC to 55flC (Amplifier) with no icing
Ambient humidity
Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier)
Temperature influence
‒10% FS max. of linear output current at 23flC in the rated ambient operating
temperature range of the Sensor and Amplifier Units
Voltage influence
DC power supply model: ‒0.5% FS max. of linear output current at a voltage between
80% and 120% of the rated power supply voltage
AC power supply model: ‒0.5% FS max. of linear output current at a voltage between
90% and 110% of the rated power supply voltage
Insulation resistance
50 MY min. (at 500 VDC) between the case and current carry parts
Dielectric strength
DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts
and case
AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts
and case
Vibration resistance
Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and
Z directions
Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and
Z directions
Shock resistance
Sensor (destruction): 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions
Amplifier (destruction): 100 m/s2 (approx. 10G) 3 times each in X, Y, and Z directions
Degree of protection
Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof)
Cord length
Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord
Weight
g
(
(see
note
t 4)
Sensor
Approx. 40 g
Amplifier
Approx. 250 g
Material
Case
Brass
Sensing surface
ABS resin
Cord
Polyethylene
Approx. 140 g
Approx. 250 g
Approx. 140 g
3
E2CA
E2CA
E2CA-X5A
Sensor model
Item
E2CA-AN4E
Supply voltage (operating voltage range)
100 to 240 VAC
50/60 Hz
(90 to 264 VAC)
12 to 24 VDC
(10 to 30 VDC),
ripple (p-p): 10%
max.
100 to 240 VAC
50/60 Hz
(90 to 264 VAC)
12 to 24 VDC
(10 to 30 VDC),
ripple (p-p): 10%
max.
Current consumption
60 mA max.
70 mA max.
60 mA max.
70 mA max.
Sensing object
Ferrous metal
Sensing range (with standard sensing
object)
1 to 5 mm (18 x 18 x 1 mm iron)
Linear output
p
characteristics
h
t i ti
Resolution
0.05% FS
Linearity
‒1.5% FS
‒2% FS
Response frequency
(see note 1)
5 kHz (--1 dB)
3 kHz (--1 dB)
Differential travel
2% to 5% of rated sensing distance
Response frequency
(see note 2)
350 Hz
Switching
g output
p
characteristics
h
t i ti
Sensitivity
adjustment
adjust
e t
f
function
i
E2CA-AL4E
E2CA-X10A
Amplifier model
E2CA-AN4F
E2CA-AL4F
2 to 10 mm (30 x 30 x 1 mm iron)
100 Hz
Sensitivity adjustment
Adjustments of switching output within sensing range
(switching output)
Linear output
4 mA 4-mA adjustment at 20% of rated sensing distance
current
20 mA 20-mA adjustment at rated sensing distance
adjustment
Output
Linear output
(see note 3)
4 to 20 mA (with permissible load resistance of 0 to 300 Y)
Switching output
100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V
Switching output mode
Normally open or normally closed (selectable with selector on front panel)
Cord length compensation
3 or 5 m (selectable with selector on front panel)
Indicators
POWER, SPAN (linear range), and OPER (switching output) indicators
Ambient temperature
Operating: --25flC to 70flC (Sensor) and --10flC to 55flC (Amplifier) with no icing
Ambient humidity
Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier)
Temperature influence
‒10% FS max. of sensing distance at 23flC in the rated ambient operating temperature
range of --10flC and 40flC
Voltage influence
DC power supply model: ‒0.5% FS max. of linear output current at a voltage between
80% and 120% of the rated power supply voltage
AC power supply model: ‒0.5% FS max. of linear output current at a voltage between
90% and 110% of the rated power supply voltage
Insulation resistance
50 MY min. (at 500 VDC) between the case and current carry parts
Dielectric strength
DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts
and case
AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts
and case
Vibration resistance
Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and
Z directions
Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and
Z directions
Shock resistance
Sensor (destruction): 500 m/s2 (approx. 50G) 3 times each in X, Y, and Z directions
Amplifier (destruction): 100 m/s2 (approx. 10G) 3 times each in X, Y, and Z directions
Degree of Protection
Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof)
Cord length
Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord
Weight
g
(
(see
note
t 4)
Sensor
Approx. 60 g
Amplifier
Approx. 250 g
Material
Case
Brass
Sensing surface
ABS resin
Cord
Polyethylene
Note:
Approx. 160 g
Approx. 140 g
Approx. 250 g
Approx. 140 g
1. This is a frequency decreasing the level of linear output current by 1 dB.
2. This is a response frequency measured in accordance with CENELEC standards.
3. The maximum load impedance of the E2CA-AL4 is 150 Y at a supply voltage of 12 V.
4. The weight includes the 3-m-long cord. The weights of the Amplifiers do not include connecting sockets.
4
E2CA
E2CA
Engineering Data
Sensing Distance vs. Output Current (Typical)
Sensing distance (mm)
E2CA-X10A
Output current (mA)
E2CA-X5A
Output current (mA)
Output current (mA)
E2CA-X2A
Sensing distance (mm)
Output current (mA)
E2CA-X1R5A
Sensing distance (mm)
Sensing distance (mm)
Sensing Object Size vs. Linearity (Typical)
Sensing distance X (mm)
Material: Iron t=1
Sensing distance X (mm)
E2CA-X10A
Linearity (% of full scale)
E2CA-X5A
Linearity (% of full scale)
Linearity (% of full scale)
Sensing object material: Iron t=1
Linearity (% of full scale)
E2CA-X2A
E2CA-X1R5A
Material: Iron t=1
Sensing distance X (mm)
Sensing object material: Iron t=1
Sensing distance X (mm)
Column Diameter vs. Linearity (Typical)
f
8 dia.
10 dia.
Flat plate
Sensing distance X (mm)
f
Material: Iron
6 dia.
10 dia.
20 dia.
30 dia.40 dia.
Flat plate
Sensing distance X (mm)
E2CA-X10A
10 dia.
Material: Iron
20 dia.
30 dia.
40 dia.
60 dia.
100 dia.
Flat plate
Sensing distance X (mm)
Linearity (% of full scale)
Sensing object material:
Iron
E2CA-X5A
Linearity (% of full scale)
E2CA-X2A
Linearity (% of full scale)
Linearity (% of full scale)
E2CA-X1R5A
Sensing object material:
Iron
f
140 dia.
220 dia.
Flat plate
Sensing distance X (mm)
5
E2CA
E2CA
Nomenclature
Selector and Adjuster Settings
(1) Operation Mode Selector
OUTPUT
NO
NC
The switching output transistor turns ON
when there is sensing object detection.
POWER indicator (red LED)
ON when power is supplied to the E2CA.
NC
The switching output transistor turns ON
when there is no sensing object detection.
OPER indicator
ON when the switching output of the POWER
indicator is detected.
(ON when detected, OFF when not detected)
OUTPUT
NO
SPAN indicator
Indicates the linear range of green
LED output current.
(1) Operation mode selector
Linear output current adjuster (20 mA)
(2) Cord length compensation selector
Linear output current adjuster (4 mA)
SENSITIVITY adjuster
Used to adjust the sensing distance of
switching output.
CABLE
(2) Cord Length Compensation Selector
3m
Set the selector to 3 m or 5 m according to the
length of the Sensor cord in use.
5m
A cord length of 3 m is selected.
5m
A cord length of 5 m is selected.
CABLE
3m
Linear Output Adjustment (LINEARITY Adjuster)
Step
Positioning
1
2
---
20% of rated
sensing distance
3
Rated sensing distance
Standard
object
Standard object
LINEARITY
adjuster
---
---
4 mA
Adjustment
procedure
Connect an ammeter across terminals 1
and 2.
Shielded cord
P2CF-11
Switching
output
(photocoupler
output)
E2CA-Aj4j
Amplifier Unit
P2CF-11
Front-connecting Socket
Note:
6
Remarks
---
This illustration shows the Sensor
Unit connected to the Amplifier Unit
with the P2CF-11 Front-connecting
Socket mounted.
Place the standard
object at 20% of the
rated sensing distance
away from the Sensor
Unit. Turn the 4 mA
LINEARITY adjuster
slowly clockwise (the
output current is
increased) or
counterclockwise (the
output current is
decreased) to set the
output current to 4 mA.
(SPAN indicator is ON.)
20 mA
Fasten the standard
object at the rated
sensing distance. Turn
the 20-mA LINEARITY
adjuster slowly
clockwise (the output
current is increased) or
counterclockwise (the
output current is
decreased) to set the
output current to 20 mA.
(SPAN indicator is ON.)
To further
improve the
adjustment
accuracy, set
again the
position of the
standard object
in the order of
steps 2 and 3.
Perform minute
adjustment of
the output
current.
E2CA
E2CA
Compensation of Cord Length Difference
Sensitivity (Distance) Adjustment
Detecting
condition
Set the CABLE selector to the required position according to the
length of the cord being used (3 m or 5 m).
Standard target (See Note at below right.)
3-m cord
CABLE
Standard object
3m
5m
CABLE
SENSITIVITY
adjuster
3m
Low
5-m cord
5m
High
SENSITIVITY
Adjustment
procedure
Place the standard object at the specified
position. Slowly turn the SENSITIVITY
adjuster clockwise (toward “High”) and stop
it when the OPER. indicator illuminates.
Move the object to confirm that the OPER.
indicator is ON when the object is at the
specified position and that it is OFF when
the object is moved away from that
position.
Operation
Output Circuit
Timing Chart
100 %
Distance (Rated distance)
20 %
of object
(Set distance)
Linear output:
4 to 20 mA
100 mA max. 2.2 Y
Switching output (+)
ON
SPAN indicator
OFF
Main
circuit
Comparator
20 mA
Linear output
47 V
4 mA
Switching output (--)
Mode selector
NO
Transistor output
(switching output)
ON
NC
0V
OFF
ON
OPER. indicator
*SENSITIVITY adjuster
OFF
Connections
Connections between Sensor Units and Amplifier Units
E2CA-AN4j+Sensor Unit
E2CA-AL4j+Sensor Unit
Sensor Unit
Sensor Unit
Shielded cord
White
Shielded cord
White
Blue
Blue
Switching output
(Transistorized
photocoupler output)
E2CA-AL4j Amplifier unit
P2CF-11 Front-connecting Socket
E2CA/AN4j Amplifier unit
P2CF-11 Front-connecting Socket
0 V 12 to
0 V (+)
24 VDC Linear output
Note:
Switching output
(Transistorized
photocoupler
output)
100 to 240 VAC
0 V (+)
Linear output
The above illustrations show the terminal arrangement viewed from the rear of the socket, which is coupled to the Amplifier Unit.
7
E2CA
E2CA
Connection of Resistive Load:
E2CA-AN4j+Sensor Unit
Connection to Z4W-DD1C
Synchronous sensor
Sensor Unit (E2CA)
Shielded cord
Shielded cord
White
Blue
4 to 20 mA
Blue
White
0V
E2CA-AN4j Amplifier
+12 V
E2CA-AN4j Amplifier
P2CF-11 Front-connecting
Socket
(+)
Comparator,
microprocessor, etc.
100 to 200 VAC
Linear output
0V
Note:
0V
Blue
Output
Black
+12 V
Brown
4 to 20 mA 0 V
Z4W-DD1C
R
(see note)
100 mA,
30 VDC max.
Resistance R when E2CA-AL4 is used: 300 Y max. at 24 V/150 Y max. at 12 V
Resistance R when E2CA-AN4 is used: 300 Y max.
100 to 240 VAc,
50/60 Hz
Connection to K3TX-AD22
Connection to K3TS-SD12
Sensor Unit
Sensor Unit
Shielded cord
Blue
White
Shielded cord
White
E2CA-AL4j Amplifier
P2CF-11 Front-connecting Socket
Blue
E2CA-AL4j Amplifier
P2CF-11 Front-connecting Socket
K3TS
12 to 24 VDC
CQM1 Linear Sensor Interface Unit
Connection to CQM1-LSE
Sensor
Shielded cord
White
Blue
E2CA-AL4j Amplifier
P2CF-11 Front-connecting Socket
4 to 20 mA
CQM1-LSE01
8
K3TX
12 to 24 VDC
E2CA
E2CA
Dimensions
Note:
All units are in millimeters unless otherwise indicated.
Sensor Units
E2CA-X1R5A
E2CA-X2A
2.8 dia.
2.8 dia.
Shielded cord
Standard length: 3 m
E2CA-X5A
Shielded cord
Standard length: 3 m
E2CA-X10A
4.1 dia.
5.5 dia.
Shielded cord
Standard length: 3 m
Shielded cord
Standard length: 3 m
Amplifier Units
E2CA-AjC/F
E2CA-AjD/E
48 x 48
44.8x44.8
Mounting Hole Dimensions
Model
E2CA-X1R5A
E2CA-X2A
E2CA-X5A
E2CA-X10A
F (mm)
8.5
+0.5
0
dia.
+0.5
0
dia.
+0.5
0
dia.
+0.5
0
dia.
12.5
18.5
30.5
9
E2CA
E2CA
Accessories (Order Separately)
Mounting Fixture (Y92E-B Series)
Four types of exclusive resin mounting fixtures are optionally available.
Select the type suited to the dimensions of the Sensor.
Y92F-30 Adapter for Flush Mounting
Y92A-48B Protective Cover
Mounting panel
Y92F-30 Adapter for
flush mounting
The protective hard plastic cover shields the front
panel, particularly the setting section, from dust,
dirt, and water drip.
P3GA-11 Back-connecting Socket
Y92A-48B
Connecting Sockets for E2CA-Aj4j
P2CF-11 Front-connecting Socket
(Track Mounted)
Terminal Arrangement
(Top View)
Mounting Holes
Eleven, M3.5 & 7.5
sems screws
Two, 4.5-dia. holes
Note:
70 max.
The Socket can be
mounted to a track.
Two, 4.5-dia. hole
50 max.
31.2 max.
P3GA-11 Back-connecting Socket
Terminal Arrangement
(Bottom View)
27 dia.
45
25.6
45
4.5
10
16.3
6.2
E2CA
E2CA
PL11 Back-connecting Socket
(Solder Terminal)
Terminal Arrangement
(Bottom View)
Mounting Holes
Two, 3.5 dia. or M3
socket mounting holes
Two, 2 dia.
Two, 3.5 dia. or M3
socket mounting holes
51 max.
30 dia.
31-dia.
hole
35 max.
Approx. 20.5
Precautions
Correct Use
Mounting
Do not tighten the nut of the Sensor with excessive force. Be sure to
use the washer with the nut when tightening.
Mutual Interference
If the Sensors are mounted in parallel or face-to-face, be sure to
keep the clearance between the Sensors as specified in the table.
Model/Distance
Model
Tightening torque
E2CA-X1R5A
1.96 N S m (20 kgf S cm)
E2CA-X2A
5.9 N S m (60 kgf S cm)
E2CA-X5A
14.7 N S m (150 kgf S cm)
E2CA-X10A
39.2 N S m (400 kgf S cm)
Note:
The above tightening torque applies when a toothed washer is used.
Effects of Surrounding Metal
Be sure to separate the Sensor from surrounding metal objects as
shown in the following illustration if the Sensor is embedded.
A
B
E2CA-X1R5A
30
20
E2CA-X2A
30
20
E2CA-X5A
50
35
E2CA-X10A
100
75
Sensor Cord
The Sensor cord must be either 3 or 5 m. Do not cut or extend the
Sensor cord, otherwise the E2CA may not provide the specified output.
Mounting the Amplifier Unit
When mounting more than one amplifier vertically, it is recommended that a margin of approximately 20 mm above and below the
Socket be provided in consideration of the space required by the
hook of the Socket.
d dia.
Hook
Duct
Model/Distance
d
D
m
E2CA-X1R5A
0
(8)
0
4.5
E2CA-X2A
0
(12)
0
6
E2CA-X5A
0
(18)
0
15
E2CA-X10A
0
(30)
0
30
Note:
P2CF-11
Panel
The values for “d” indicate distances for the outer diameter
of the shielded models.
11
E2CA
E2CA
Enclosed Mounting
If the Y92F-30 Adapter is used, insert the E2CA into the square hole
from the front side of the panel and slide the Y92F-30 onto the E2CA
from the rear side of the E2CA. Then press the Y92F-30 so that the
space between the Y92F-30 and the panel is reduced as much as
possible. Finally, secure the Y92F-30 with screws.
Panel
Y92F-30 Adapter
Removing the Amplifier Unit
If the Y92F-30 is used, loosen the screws of the Y92F-30, spread
out the hooks, and remove the Y92F-30.
P3G-11 Back-mounting Socket
Others
The accuracy of the E2CA will vary with the on-site environment.
The resolution, temperature characteristics, and voltage characteristic linearity are especially affected. Therefore, keep the on-site environment as suitable for the E2CA as possible.
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. D77-E1-1
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Sensors Division
Sensing Devices and Components Division H.Q.
28th Fl., Crystal Tower Bldg.
1-2-27, Shiromi, Chuo-ku,
Osaka 540-6028 Japan
Phone: (81)6-949-6012 Fax: (81)6-949-6021
12
Printed in Japan
0398-0.5M (0398) a
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