Delta Ultron Series User Manual page 78

Single Input_ Bottom Wiring_ Step 3
(Figure 5-31: 400/ 500/ 600kVA UPS Single Unit Single Input_ Bottom Wiring_ Step 3)
Step 9
Follow Figure 5-20 to ground the UPS, external battery cabinet(s) and connected critical
loads.
5.4.4.4 400/ 500/ 600kVA UPS 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/ Dual Input Modification to modify the UPS from single input to
dual input.
Step 2
Follow Step 1 ~ Step 7 in 5.4.4.3 400/ 500/ 600kVA UPS 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. Please refer to Table 5-3, 5.5 External Battery Cabinet Connection
Warnings and the following diagrams to perform wiring.
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Ultron DPS Series