E2EX5ME1 Datasheet, PDF (48/48 Pages) Omron Electronics LLC – Cylindrical Proximity Sensor

E2E/E2E2
Model Connection type
AC
OR
2-wire (parallel connection)
A
A
DC
AND
3-wire (serial connection)
E2E/E2E2
Method
Incorrect
Load
B
Correct
Load
B
Correct
Load
Description
In principle, more than two Proximity Sensors
cannot be connected in parallel.
Provided that Proximity Sensor A does not
operate with Proximity Sensor B simultaneously
and there is no need to keep the load operating
continuously, the Proximity Sensors can be
connected in parallel. In this case, however, due
to the total leakage current of the Proximity
Sensors, the load may not reset properly.
VAC power
supply V_S
It is not possible to keep the load operating
continuously with Proximity Sensors A and B in
simultaneous operation to sense sensing objects
due to the following reason.
When Proximity Sensor A is ON, the voltage
imposed on Proximity Sensor A will drop to
approximately 10 V and the load current flows
into Proximity Sensor A, and when one of the
sensing objects is close to Proximity Sensor B,
Proximity Sensor B will not operate because the
voltage imposed on Proximity Sensor B is 10 V,
which is too low. When Proximity Sensor A is
OFF, the voltage imposed on Proximity Sensor B
will reach the supply voltage and Proximity
Sensor B will be ON. Then, Proximity Sensor A
as well as Proximity Sensor B will be OFF for
approximately 10 ms, which resets the load for
an instant. To prevent the instantaneous
resetting of the load, use a relay as shown on the
left.
The Sensors connected together must satisfy the
following conditions.
i_L + (N –1 ) x i x Upper-limit of control output of
each Sensor
V_S – N x V_R y Load operating voltage
N: No. of Sensors
V_R: Residual voltage of each Sensor
V_S: Supply voltage
i: Current consumption of the Sensor
i_L: Load current
If the MY Relay, which operates at 24 VDC, is
used as a load for example, a maximum of two
Proximity Sensors can be connected to the load.
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. D058-E1-1D In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
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
Tel: [phone]/Fax: [phone]
Printed in Japan
0300-0.5M (0296) a
48