LOW VOLTAGE ELECTRICAL CONNECTIONS
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4.3.2 Supply Capacity When Wiring Directly to Lonworks Scanners
For direct wiring, power distribution is performed simultaneously for all the scanners. However
all the scanner motors start up slowly so that there is no significant peak current draw. See the
specific scanner manual for consumption data.
The maximum number of scanners to be supplied for direct wiring by a single PWR-120 is
shown in the table below:
PWR-120
Power Supply
Maximum Number of
Scanners
Cables
DX8200A
3
CAB-8305 and CAB-8605
DS8100A
4
CAB-8305 and CAB-8605
DX6400
5*
CAB-63xx
DS6400 / DS6300
6*
CAB-63xx
NOTE:
* The maximum current to be propagated through 6000 series
scanners is 2A, therefore a CAB-63xx power drop cable is required for
every
three
readers.
The power supply unit is connected directly to the scanners through Lonworks cables.
Figure 11
– Connecting PWR-120 to Lonworks Scanners
Lonworks Cables
Wire Color
Meaning
Red
24 V+
Black
0 V-
Refer to the specific scanner manual for I/O interface wiring connections.
24 Vdc
to scanners using Lonworks cables
AC in