E2EX5ME1 Datasheet, PDF (47/48 Pages) Omron Electronics LLC – Cylindrical Proximity Sensor

E2E/E2E2
E2E/E2E2
Example
In this example, the above conditions are checked for when the PLC
model is the C00H-ID212, the Proximity Sensor model is the
E2E-X7D1-N, and the power supply voltage is 24 V.
1. V_ON (14.4) x V_CC (20.4 V) – V_R (3 V) = 17.4 V : OK
2. I_OFF (1.3 mA) y I_leak (0.8 mA)
: OK
3. I_ON = [V_CC (20.4 V) – V_R (3 V) – V_PC (4 V)]/R_IN (3 kΩ)
[ 4.5 mA
Therefore,
I_OUT(min) (3 mA) x I_ON (4.5 mA)
: OK
V_ON: ON voltage of PLC (14.4 V)
I_ON: ON current of PLC (typ. 7 mA)
I_OFF: OFF current of PLC (1.3 mA)
R_IN: Input impedance of PLC (3 kΩ)
V_PC: Internal residual voltage of PLC (4 V)
V_R: Output residual voltage of Proximity Sensor (3 V)
I_leak: Leakage current of Proximity Sensor (0.8 mA)
I_OUT: Control output of Proximity Sensor (3 to 100 mA)
V_CC: Power supply voltage (PLC: 20.4 to 26.4 V)
The values in parentheses are for the following PLC model and
Proximity Sensor model.
PLC: C200H-ID212
Proximity Sensor: E2E-X7D1-N
Precautions for AC/DC 2-wire Proximity Sensors in Operation
Connection
Model
DC
2-wire
Connection type
AND
(serial connection)
OR
(parallel connection)
Method
Correct
Load
Correct
Load
Description
The Sensors connected together must satisfy the
following conditions.
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
If each Proximity Sensor is not supplied with the
rated voltage and current, the indicator will not
be lit properly or unnecessary pulses may be
output for approximately 1 ms.
The Sensors connected together must satisfy the
following conditions.
N x i x Load operating voltage
N: No. of Sensors
i: Leakage current of each Sensor
If the MY Relay, which operates at 24 VDC, is
used as a load for example, a maximum of four
Proximity Sensors can be connected to the load.
AC
AND
2-wire (serial connection)
Incorrect
Load
Correct
Load
If 100 or 200 VAC is imposed on the Proximity
Sensors, V_L (i.e., the voltage imposed on the
load) will be obtained from the following.
V_L = V_S – (residual voltage x no. of Proximity
Sensors) (V)
Therefore, if V_L is lower than the load operating
voltage, the load will not operate.
A maximum of three Proximity Sensors can be
connected in series provided that the supply
voltage is 100 V minimum.
Load
V_s y 100 V
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