Rockwell Automation 873P Ultrasonic Single & Dual Discrete Output Sensors Installation Instruction - Manual (Page 2)

Rockwell Automation 873P-IN003A-EN-P—October 2014
2 873P Ultrasonic Single & Dual Output Sensors
Single Discrete N.O./N.C. Output
Normally-open Logic: If near point is set first, far point is set second.
The output is ON between the two points, and the output is OFF
outside of these two points.
Normally-closed Logic: If far point is set first, near point is set
second. The output is OFF between the two points, and the output is
ON outside of these two points.
Window Function
In this sensing mode, you teach the sensor a near set point and a far
set point within the defined sensing range of the sensor.
With normally-open logic, if an object passes through the defined
window, the discrete output turns ON or the opposite if the logic is
normally-closed.
Set Point 1 (P1)
1. Place the target at the desired near/far set point.
a. The near set point first yields normally-open.
b. The far set point first yields normally-closed.
2. With target at the desired near/far location, press the teach button,
then release.
3. The yellow and green LEDs flash simultaneously, indicating that
the first set point P1 is now set. The sensor is waiting for the last set
point.
Set Point 2 (P2)
1. Place the target at the desired near/far set point location based
upon set point 1 location.
2. While green and yellow LEDs are flashing, press the teach button,
then release. The sensor is ready to operate.
One Set Point Function
In this sensing mode, a set point is taught in the defined sensing
range. The working range of the sensor becomes the minimum
sensing distance to a user-taught set point. Depending on where the
set point is taught, the output will turn ON when the target passes
between the minimum sensing distance of the sensor and the taught
set point. When using the one set point mode it is only possible to
configure the sensor for normally open logic. It is not possible to
configure the sensor for N.C.
Operating
Voltage Catalog Numbers
12…30V DC
873P-D30P1-2500-D4, 873P-D30P2-2500-D5,
873P-D30P1-3500-D4, 873P-D30P2-3500-D5,
873P-D30P1-6000-D4, 873P-D30P2-6000-D5,
15…30V DC
873P-D18P1-400-D4, 873P-D18P2-400-D5,
873P-D18P1-900-D4, 873P-D18P2-900-D5,
873P-D18P1-2200-D4, 873P-D18P2-2200-D5
The 873P sensor is set to a one-set point mode with
maximum sensing range from the factory.
IMPORTANT
H
N.O.
N.C.
Pin 4
(BK)
Pin 4
(BK)
Blind Z
one
Blind Z
one
L
mm P2 P1 BZ
H
L
mm P1 P2 BZ
Set Point 1 (P1):
1. Place the target at the desired set point.
2. With the target still in place, press the teach button, then release.
3. The yellow and green LEDs flash simultaneously, indicating that
the first set point P1 is now set. The sensor is waiting for the sensor
reference point.
Sensor Reference Point
Keep the target in the same position used to set P1.
With the target still in place, press the teach button. While the yellow
and green LEDs flash simultaneously, press the teach button, then
release. The sensor is ready for use. The minimum sensing distance is
indicated in the Specifications.
Dual Discrete N.O./N.C. Outputs
These sensors feature two programmable independent outputs with
sourcing (PNP) outputs configurable for N.O. or N.C. operation.
Window Function
Two set points are taught in the defined sensing range, thus creating
a sensing window. When a target is detected between the taught set
points, the sensor’s output triggers ON or OFF, depending on the type
of logic used (N.O. or N.C.).
Set Point 1 (P1)
1. Place the target at the desired near/far set point.
a. The near set point (i.e. nearest to sensor face) yields a
normally-open logic.
b. The far set point (i.e. furthest from the sensor face) yields a
normally-closed logic.
2. With target in the desired near/far location, press the teach button,
then release.
3. The yellow and green LEDs flash simultaneously, indicating that
the first set point P1 is now set. The sensor is waiting for the last set
point.
Set Point 2 (P2)
1. Place the target at the desired near/far set point location based
upon set point 1 location.
2. While green and yellow LEDs are flashing, press the teach button,
then release. The sensor is ready to operate.
H
L
mm P2 P1 BZ
N.O.
Pin 4
(BK)
Blind Z
one
H
N.O.
Pin 4
(BK)
Blind Z
one
L
mm P2 P1 BZ
N.C.
Pin 4
(BK)
Blind Z
one
H
L
mm P2 P1 BZ
Pin 2
(WH)
H
L
H
Pin 2
(WH)L