Delta Modulon DPH series User Manual page 97

NOTE:
For single input, the UPS will not work normally if the main AC power's neutral
terminal.
8
Follow Figure 5-19 to ground the UPS, external battery cabinet(s) and connected
critical loads.
Load Load
Load Grounding
Load Grounding
Dual Input (Single Unit)
When there are two AC power sources, single unit wiring procedures are as follows.
NOTE:
The UPS adopts top and bottom wiring. Please leave adequate space on the
top and at the bottom of the UPS to allow cable entry.
1
Follow
input into dual input.
2
Follow the procedures
Unit).
3
Connect the cables of the main AC source, bypass source, output and external
battery cabinet(s) to the UPS. There are two types of wiring, top wiring and bottom
wiring. Please refer to the following to perform wiring.
Table 5-3: Wiring Terminals & Wiring Information
Figure 5-20: Single Unit Dual Input Top Wiring Diagram_ Step 1
Figure 5-21: Single Unit Dual Input Top Wiring Diagram_ Step 2
Figure 5-22: Single Unit Dual Input Bottom Wiring Diagram_ Step 1
Figure 5-23: Single Unit Dual Input Bottom Wiring Diagram_ Step 2
5.6 External Battery Cabinet Connection Warnings
UPS
External Battery
Cabinet Grounding
Protective Earthing
Figure 5-19: Grounding Diagram_ Single Unit
1 6
~ stated in the section of Single Input (Single
5-19
5 Installation and Wiring
(At Maximum Eight)
External External External
Battery Battery Battery
Cabinet Cabinet Cabinet
to modify the UPS from single
External
Battery
Cabinet