Multiple Reader Connections Using Other Power Supply - AB Quality Allen-Bradley 2755-SN3 User Manual

Ground V- at
One Place
V- 24V+
Ground Screw
on Wiring Base
V+
User
Specified
Unregulated
Ground
Linear Power
Screw
Supply
V-
Ground V- at
One Place
Reader 1
V-
Ground Screw
on Wiring Base
See DeviceNet Cable System Planning and Installation Manual
(Publication No. DN-6.7.1) for recommendations and accessories.

Multiple Reader Connections using Other Power Supply

Below all Readers are powered by another power supply. Use a
linear unregulated power supply. The supply must provide 14 watts
of power to each reader. Use a shielded cable (Belden 9316
recommended) when making power connections.
Note: You must ground V- to Earth Ground at a single point on the
power supply link, preferably as near the power supply as possible.
Reader 1
See DeviceNet Cable System Planning and Installation Manual
(Publication No. DN-6.7.1) for recommendations and cable
accessories.
Installing the Wiring Base and Power Supply
Reader 2
24V+
Ground Screw
on Wiring Base
Reader 2
Reader 3
V- 24V+
Ground Screw
on Wiring Base
Reader 3
3–15
Other
DeviceNet
Devices
Other
DeviceNet
Devices