Rockwell Automation 873M Programming Cable - Manual

Installation Instructions
873M Programming Cable
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
Discrete Sensor Instructions:
Adjusting Set Points
The 873M provides five modes of operation for detecting a target
object in discrete mode.
• Window Mode, N.O: Two set points are taught in defined
sensing range creating a sensing window. Once a target
object passes through the window, output triggers on.
• Window Mode, N.C.: Two set points are taught in the
defined sensing range creating a sensing window. Output
is initially ON. Once a target object passes through the
window, output triggers off.
• One set point, N.O.: One set point is taught within a
defined sensing range of the sensor with the output off.
When a target passes between the sensor and the taught
set point, the output triggers and turns on.
• One set point, N.C: One set point is taught within a
defined sensing range of the sensor while the output is on.
When a target passes between the sensor and the taught
set point, output triggers and turns off.
• Object Presence Mode: Also known as resetting to
factory defaults settings. Once the sensor is taught, all set
points are removed and the sensor returns to the factory
default specified range depending on the catalog number.
Any object within a specified sensing range (50…300 mm
or 70…800mm) will be detected.
Window Mode, N.O.
1. Place the target at the desired near-set point.
2. Connect to 0V DC (–) using the white wire, or press A1 on the
optional programming cable.
3. Set the target to at the desired far-set point.
4. Connect to 10…30V DC (+) using the white wire, or press A2
on the optional programming cable.
Window Mode, N.C.
1. Place the target at the desired near-set point.
2. Connect to 10…30V DC (+) using the white wire, or press A2
on the optional programming cable.
3. Set the target to the desired far-set point.
4. Connect to 0V DC (–) using the white wire, or press A1 on the
optional programming cable.
One Set Point, N.O
1. Place target at the desired set point.
2. Connect to 10…30V DC (+) using the white wire, or press A2
on the optional programming cable.
3. Cover sensor head with your hand or remove all objects from
the sensing field.
4. Connect to 0V DC (–) using the white wire, or press A1 on the
optional programming cable.
One Set Point, N.C
1. Place target at the desired set point.
2. Connect to 0V DC (–) using the white wire, or press A1 on the
optional programming cable.
3. Cover sensor head with your hand or remove all objects from
the sensing field.
4. Connect to 10…30V DC (+) using the white wire, or press A2
on the optional programming cable.
Object Presence Mode (Restore Factory Defaults)
1. Cover sensor head with your hand or remove all objects from
the sensing field.
2. Connect to 0V DC (–) using the white wire, or press A1 on the
optional programming cable.
3. Connect to 10…30V DC (+) using the white wire, or press A2
on the optional programming cable.
Discrete Sensor LED Indicators
Operating Mode Red LED Yellow LED Green LED
Teach Mode
Target detected One flash Continuous flash
Off No target detected
Flashes Off
Target marginal (invalid teach)
Standard Mode
Target present
Off
On
On
Target not present Off