Digital Equipment HA3000, Руководство по установке

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4–28 INSTALLATION
Connect the incoming A cable to TB4-1. Connect the incoming B cable to TB4-2.
Connect the incoming C cable to TB4-3. Connect the neutral cable to the neutral
busbar. Connect the ground cable to the ground busbar. The cables connecting TB4 to
contactor K2 are factory installed.
The seven power cables connecting the UPS CSA Cabinet to the UPS cabinet are provided
(Figure 4–18).
Three cables are connected to TB4 in the UPS CSA Cabinet. The other end of these
cables are marked A, B, and C. These three phase cables must be connected to the main
ac input (MAINS1) terminals in the UPS cabinet.
Three cables are connected to the load side of the mechanical contactor (K2) in the UPS
CSA Cabinet. The other end of these cables are marked A, B, and C. These three phase
cables must be connected to the bypass ac input (MAINS2) terminals in the UPS cabinet.
A neutral cable is connected to the neutral busbar in the UPS CSA Cabinet. The other
end of this cable must by connected to the neutral busbar in the UPS cabinet.
A ground cable is supplied with the UPS CSA Cabinet. This ground cable must be
connected between the ground busbar in the UPS CSA Cabinet and the ground busbar in
the UPS cabinet.
K4
K2
SW1
A
B
C
HA33F UPS CSA CABINET
G
F4
F5
F6
A
B
C
G
A
B
C
TO UPS
BYPASS AC
INPUT (MAINS2)
MAIN AC
INPUT (MAINS1)
BUILDING
AC INPUT
SOURCE
TO UPS
TO UPS
MKV-A2242-91
1
2
3
N
N TO UPS
Figure 4–18 HA33F UPS CSA Cabinet Wiring Diagram