12
2
Ensure the functions of the wiring terminal block shown in
Figure 3-7
are clearly understood.
No.
Item
Function
Description
1
AC Input
Terminal Block
Connects the main AC source.
Includes three-phase (R, S, T) and neutral (N) terminals.
2
For the UPS grounding
Includes one grounding terminal.
3
UPS Output
Terminal Block
Connects the critical loads.
Includes three-phase (R, S, T) and neutral (N) terminals.
4
For the critical loads’ grounding Includes one grounding terminal.
5
Battery Input
Terminal Block
Connects an external battery
cabinet.
Includes three terminals, positive (+), neutral (N) and negative (-).
6
For an external battery cabi-
net’s grounding
Includes one grounding terminal.
3
Confirm the UPS rating voltage is 220/380V AC, 230/400V AC or 240/415V AC, and the battery rating voltage is ±240V DC.
4
Confirm the input breaker and bypass breaker are in the
OFF
position. For the position of each breaker, refer to
4.5 Rear Panel
.
5
Select the proper input and output cables according to the UPS capacity (refer to
Table 3-1
).
6
Connect the main AC source/output/external battery cabinet cables to the wiring terminal block and do not forget to ground the
UPS (refer to
Figures 3-9~3-11
).
7
Only qualified service personnel should perform the following procedure: install the provided battery fuses in the battery fuse
holders. After installation, make sure the battery fuse holders are open. Refer to
34.3 Front View with Door Open
for instruction
on how to open/close the internal battery fuse holders.
3. Installation and Wiring
(Figure 3-6: Battery Installation)
