Single Unit Wiring - Delta DPS-400K User Manual

NOTE:
the socket wrench to reinstall the three copper bars back.

5.4.3 Single Unit Wiring

NOTE:
1. Before wiring, please read 5.4.1 Pre-wiring Warnings.
2. If your UPS is equipped with a Top Cable Entry Cabinet, please refer to 6. Top
Single Input (Single Unit)
When there is only one AC power source, single unit wiring procedures are as follows.
1
Open the front door, take down the panel that covers the wiring terminal block and
you will see the wiring terminal block shown in Figure 5-10.
2
The wiring terminal block includes:
No.
1
2
Bypass Input
3
4
UPS Output
5
Battery Input
6
If you want to modify the UPS from dual input into single input, please use
Cable Entry Cabinet for relevant information.
Item
AC Input Connects the main AC
Block source
For the critical loads'
grounding
Connects the bypass AC
Block source
For the UPS grounding
(safety)
Connects the critical
Block loads
Connects an external
Block battery cabinet
Function
Includes three phases (R, S, T) and
one neutral (N) terminals.
Includes one grounding terminal.
Includes three phases (R, S, T)
terminals.
Includes one grounding terminal.
Includes three phases (R, S, T) and
one neutral (N) terminals.
Includes positive ( + ), negative ( - ) and
neutral (N) terminals.
5-11
5 Installation and Wiring
Description