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Manual
Video Wall
2.7
2.7.1
Connection of Power Cords
General Block Diagram of Power Cable Connections
POWER IN
POWER INPUT
L N G
POWER INPUT
POWER INPUT
L N G
A(n-1,0)
A(n-2,0)
POWER INPUT
L N G
L N G
A(1,0)
A(0,0)
AC Input
3 phases 5 lines
POWER IN
POWER INPUT
L N G
POWER INPUT
POWER INPUT
L N G
A(n-1,1)
A(n-2,1)
Power
Distribution Box
POWER INPUT
L N G
L N G
A(1,1)
A(0,1)
POWER IN
POWER INPUT
L N G
A(n-1,m-1)
POWER INPUT
POWER INPUT
L N G
L N G
A(1,m-1)
A(n-2,m-2)
POWER INPUT
L N G
A(0,m-1)
Rear View
Figure 52
The above graph is sighted from the back of the display.
Cables from AC input to the distribution box should be prepared by the customers, and the
grounding should be guaranteed. The resistance should be less than 4Ω.
The diameter of the cables is determined by the distribution box’s power rating. It must meet
the maximum power rating.
2.7.2
Installation and Principle of Distribution Box
Generally speaking, the distribution box is fixed at the central of the display’s right side
(viewed from the back) so as to make the arrangement of wires and maintenance more convenient.
We can choose distribution boxes with different specifications according to the power rating
of the display. Depending on the maximum output of it, the distribution box has two specifications: 25KW and 40KW. Usually, the input of the distribution box is three phase five lines.
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