Allen-Bradley 2755 Manual de usuario Pagina 50

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Installing the Wiring Base and Power Supply 3–15
R
ea
d
er
2R
ea
d
er
3R
ea
d
er
1
Other
DeviceNet
Devices
24V+V- 24V+V- 24V+V-
Ground Screw
on Wiring Base
Ground Screw
on Wiring Base
Ground Screw
on Wiring Base
Ground Screw
on Wiring Base
Ground V- at
One Place
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.
User
Specified
Unregulated
Linear Power
Supply
Reader 2 Reader 3Reader 1
V-
V+
Other
DeviceNet
Devices
Ground
Screw
Ground V- at
One Place
See DeviceNet Cable System Planning and Installation Manual
(Publication No. DN-6.7.1) for recommendations and cable
accessories.
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