E2KC25MY1 Datasheet, PDF (16/18 Pages) Omron Electronics LLC – Adjustable Long-distance Sensor

Proximity Sensors Technical Guide
Model
Type of
connection
Connection
Description
AND (series
connection)
DC 3-wire
i
(A) +
OUT iL
Load
-
i
(B) +
OUT
-
Keep the number of connected Sensors (N) within the range of the following
equation.
iL + (N - 1) × i ≤ Upper limit of Proximity Sensor control output
VS - N × VR ≥ Operating load voltage
N : Number of Sensors that can be con- Example: A maximum of two
nected
Sensors can be used when an
VR: Residual output voltage of Sensor MY (24-VDC) Relay is used for
Vs
VS: Power supply voltage
the load.
i : Current consumption of Sensor
iL: Load current
Note: When an AND circuit is connected, the operation of Proximity Sensor B
causes power to be supplied to Proximity Sensor A, and thus erroneous
pulses (approximately 1 ms) may be generated in A when the power is
turned ON. For this reason, take care when the load has a high
response speed because malfunction may result.
OR (parallel
connection)
+
OUT
Load
-
+
OUT
Vs
For Sensors with a current output, a minimum of three OR connections is pos-
sible. Whether or not four or more connections is possible depends on the
model.
-
Note: When AND/OR connections are used with Proximity Sensors, the effects of erroneous pulses or leakage current may prevent use. Verify that there are no
problems before use.
Extending Cable Length
The cable of a Built-in Amplifier Sensor can be extended to a
maximum length of 200 m with each of the standard cables
(excluding some models).
For Separate Amplifier Sensors (E2C-EDA, E2C, E2J, E2CY), refer
to the specific precautions for individual products.
Bending the Cable
If you need to bend the cable, we recommend a bend radius that is at
least 3 times the outer diameter of the cable (with the exception of
coaxial and shielded cables).
Cable Tensile Strength
In general, do not subject the cable to a tension greater than that
indicated in the following table.
Cable diameter Tensile strength
Less than 4 mm
30 N max.
4 mm min.
50 N max.
Note: Do not subject a shielded cable or coaxial cable to tension.
Separating High-voltage Lines
Using Metal Conduits
If a power line is to be located near the Proximity Sensor cable, use a
separate metal conduit to prevent malfunction or damage. (Same for
DC models.)
Example of Connection with S3D2 Sensor Controller
DC 2-Wire Sensors
Using the S3D2 Sensor Controller
Operation can be reversed with the signal input
switch on the S3D2.
Blue 0 V
Brown OUT
789
10 11 12
Connecting to a Relay Load
Brown
X
Blue
S3D2
24 VDC
456
123
Note: DC 2-Wire Sensors have a residual voltage of 3 V. Check the operating
voltage of the relay before use.
The residual voltage of the E2E-XD-M1J-T is 5 V.
DC 3-Wire Sensors
Operation can be reversed with the signal input
switch on the S3D2.
Blue 0 V
Black OUT
Brown +12 V
789
10 11 12
S3D2
456
123
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