Emerson 480V ユーザーズマニュアル

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Figure 18 Connecting system parallel control cables
Auxiliary Dry Contact Cables
The external output breaker of each UPS must have Normally Open auxiliary contacts. These con-
tacts must be wired to connector X3 on the Parallel Logic Board (M3). See Figure 19.
Figure 19 Auxiliary dry contact cables for output breaker in multi-module system
!
CAUTION
The auxiliary control wire must be installed to ensure proper operation of the system.
X1-1
X1-2
X2-2 X2-1
Parallel Board
X4
X3
P5
P3
P4
P1
P2
X1-1
X1-2
X2-2 X2-1
Parallel Board
X4
X3
P5
P3
P4
P1
P2
X1-1
X1-2
X2-2 X2-1
Parallel Board
X4
X3
P5
P3
P4
P1
P2
X1-1
X1-2
X2-2 X2-1
Parallel Board
X4
X3
P5
P3
P4
P1
P2
1
2
3
4
UPS
Interconnecting
Cables
485- 
P2
   
X2
  
485+ 
DBS 
X3 
P1
   
X2
  
:XT
  M
A IN
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