Rockwell Automation 2755 Atomscan Bar Code Scanner - Manual (Page 33)

Chapter 4
Installing the Scanner
4–6
Connecting the Package Sensor
Chapter 2 gives the information needed to select a retro-reflective
photo switch, and also lists the extension cable options.
The Adapter Module has a yellow stub cable with a Micro-Change
connector. The extension cable is connected to the Adapter Module’s
connector, and then to the connector on the sensor.
In case the sensor does not have a connector, the pinout is given in Table 4.A.
The package sensor must be able to operate using the +12V DC source
(pin 1) and not draw more than 100mA. The package detect sense line (pin 2)
must be able to sink 5mA at +12V DC.
Table 4.A
Pins Used on Package sensor Port
Package
Detect Port
Pin # Pin Function Wire Color
Face View Female 1 +12V DC Brown
➁ 2 ➀ Package sensor Sense White
➀
➃
➂
➁
3 Ground Blue ➃
4 No Connection
(internally pulled up to 12V DC)
Black
Triggers the decoder to start decoding. The trigger active LED on the decoder
lights when the package detect input is active. ➀
If the laser is not ON, it could be because
•
the decoder has not been triggered, or
•
the symbol has already been decoded
The package sensor must go OFF then ON to trigger the decoder before a
new symbol can be decoded. Refer to the Enhanced Decoder user manual
(Publication No. 2755-833) for further details.