E2CA Datasheet, PDF (7/12 Pages) Omron Electronics LLC – Linear Output Proximity Sensor with High-accuracy Resolution

E2CA
E2CA
Sensitivity (Distance) Adjustment
Detecting
condition
Standard target (See Note at below right.)
Standard object
SENSITIVITY
adjuster
Adjustment
procedure
Low
High
SENSITIVITY
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.
Compensation of Cord Length Difference
Set the CABLE selector to the required position according to the
length of the cord being used (3 m or 5 m).
CABLE
3m
5m
CABLE
3m
5m
3-m cord
5-m cord
Operation
Output Circuit
Main
circuit
Compa-
rator
*SENSITIVITY adjuster
100 mA max. _{2.2 :}
Linear output:
4 to 20 mA
Switching output (+)
47 V
Switching output (--)
0V
Timing Chart
Distance
of object
100 %
(Rated distance)
20 %
(Set distance)
SPAN indicator
ON
OFF
Linear output
20 mA
4 mA
Mode selector
Transistor output
(switching output)
OPER. indicator
NO
NC
ON
OFF
ON
OFF
Connections
Connections between Sensor Units and Amplifier Units
E2CA-AL4j+Sensor Unit
E2CA-AN4j+Sensor Unit
Sensor Unit
Shielded cord
Sensor Unit
Shielded cord
White
Blue
Switching output
(Transistorized
photocoupler output)
White
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}
0 V (+)
100 to 240 VAC Linear output
Note: The above illustrations show the terminal arrangement viewed from the rear of the socket, which is coupled to the Amplifier Unit.
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