Dual Input (Single Unit) - Delta DPH Series User Manual

5.4.3.2 Dual Input (Single Unit)

When there are two AC power sources, single unit wiring procedures are as follows.
Step 1
Follow 5.4.2 Single Input to Dual Input Modification to modify the UPS from single input
to dual input.
Step 2
Follow Step 1 ~ Step 5 mentioned in 5.4.3.1 Single Input (Single Unit).
Step 3
Connect the cables of the main AC source, bypass source, output and external battery
cabinet(s) to the UPS and the external maintenance bypass cabinet. Please refer to Table
5-3, Table 5-4, 5.5 External Battery Cabinet Connection Warnings and the following
diagram to perform wiring.
(Figure 5-20: Single Unit Dual Input Wiring Diagram)
Step 4
Refer to Figure 5-19 to ground the UPS, external battery cabinet(s) and connected critical
loads.
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Modulon DPH Series