Rockwell Automation 2755 AdaptaScan Bar Code Readers - Manual (Page 47)

Installing the Wiring Base and Power Supply 3–12
The Reader requires 14 watts (maximum) of power. The Reader
accepts 11 to 28 VDC at either one of the two DeviceNet terminal
blocks (terminals 1 & 5), even if DeviceNet is not used.
11-28
VDC+
V-
From
Power Supply
Reverse Polarity
Indicator
Connect to
Earth Ground
V-
11-28
VDC+
The reverse polarity LED (top illustration) is Green when power is
properly connected. If this LED is Red, the power + and –
connections are reversed. You must correct a reverse polarity
condition before installing the Reader.
Two power supplies are available for the AdaptaScan Reader.
•
120 VAC Power Supply (Catalog No. 2755-PW46 ) plugs directly
into a standard wall electrical socket.
•
240 VAC Power Supply (Catalog No. 2755-PW47 ) supplied with
an IEC 320 unterminated power cord.
Use one of these power supplies or another 11 to 28 VDC power
source when power is not provided by another device on a
DeviceNet network.
!
ATTENTION: Permanent damage to the Reader
can be caused by:
•
Connecting the power supply to more than one
Reader.
•
Connecting power supplies in parallel.
•
Shorting out the power supply.
Power Requirements
Power Supplies