Rockwell Automation 45CPD Analog Laser Sensor User Manual
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The discrete and analog output functions can be set in 
combination (e.g., two discrete outputs and the analog output).
General Set Up
The 45CPD is set up using the pushbuttons (SET and
) and the
LED indicators on the top of the sensor.
To begin the Teach-In process, Press the SET button for three 
seconds. 
This will automatically turn on the visible red alignment laser.
Scrolling through the Teach-In functions is done using the
button. After the last function is reached the menu is started 
again from the first function.
To teach the selected function indicated by the teach-in LEDs as 
shown in table above, press SET for approximately three seconds. 
The LED will blink three times when complete.
After the desired functions are set, press SET and
simultaneously for approximately one second to exit the Teach-In 
mode. The sensor will begin normal operation based on the 
Teach-In settings. The visible red Class 2 laser will turn off and the 
infrared Class 1 laser will turn on.
(Note: To reset the sensor to the factory setting, sensor should be 
in the operating mode. Press the 
button for approximately 15
seconds until the menu LEDs turn on briefly.)
(Note: The Speed Mode of the 45CPD can be adjusted for either a 
Fast or Slow mode of operation. The Fast mode enables faster 
switching speeds which have a slightly lower repeatability. The 
Teach-In Buttons/Indicators
The SET button sets the function that is currently indicated by the 
Teach-In LEDs. To SET, press button for approximately three seconds 
until LED blinks three times.
The  button advances to the next function. After advancing 
through the entire menu, it will begin at the first function.
Teach-In Indicators
A
S1
A
S2
B
S1
B
S2
Speed
Turn on switchpoint for QA
X
Turn off switchpoint for QA
X
Invert Output for QA (L.O./
D.O.)
X
X
Turn on switchpoint for QB
X
Turn off switchpoint for QB
X
Invert Output for QB (L.O./
D.O.)
X
X
0% point for Analog
Output
X
X
100% point for Analog
Output
X
X
Speed Mode
X
SPEED
Q
A
Q
B
As2
As1
PWR
0% analog
100% analog
INV.
SET
Bs2
Bs1
INV.
Allen-Bradley
Slow mode has a slower switching frequency with higher 
repeatability. Selection will depend on the requirements in the 
application. The Speed mode is set by pressing the 
button until
the Speed LED (Orange) is blinking fast. To select the slower speed 
function press SET and the Speed LED will blink approximately 
once per second. To select the higher speed function, press SET 
and the Speed LED will blink approximately three times per 
second. To teach the setting for either slow or fast speed, press 
SET for approximately three seconds. The four teach-in indicators 
will blink three times when complete. When the sensor is put in 
operation, the LED will be turned on when running in the Slow 
mode.)
Modes of Operation for Typical Applications:
Object Detection—Single Output
To set the output for Q
A
there is a switch-on point indicated by the
A
S1
LED
and a switch off point indicated by the A
S2
LED.
Once in the Teach-In mode press the
until the A
S1
LED turns ON.
Position the target at the desired switch on point and then press 
the SET button.
(If the target is not within the measuring range or cannot be 
detected the A
S1
LED
will blink.)
Press the
button to advance to the A
S2
function which is
indicated by the teach-in LED.
Position the target at the desired switch off point and then press 
the SET button.
If desired, the output can be inverted for this switching window 
(L.O./D.O. function). Press 
until both the A
S1
and
A
S2
LEDs are
turned ON and then press the SET button. This is also indicated 
by the “INV” text on the teach-in pad. 
After this Q
A
setting has been completed, press SET and
simultaneously for approximately one second to begin normal 
operation.
Object Detection—Dual Output
To set the output for both Q
A
and
Q
B
,
follow the same teach-in
procedure as the Q
A
Single Output (shown above) and
additionally teach the Q
B
output using the B
S1
and B
S2
LEDs.
Q
A
Output
A
S2
A
S1