Delta Modulon DPH Series User Manual page 86

The UPS default setting is single input. If you want to modify it into dual input, please follow
the steps below.
1
Remove the 8 screws from the rear panel shown in
terminals and Bypass Input terminals shown in
Modulon DPH Series
WARNING:
1. Wrong wiring will cause damage to the UPS and electric shock.
2. For single input, the UPS will not work normally if the main AC power's neutral
terminal shown in
For dual input, the UPS will not work normally if the main AC power's neutral (N)
to the UPS's AC Input neutral (N) terminal and Bypass Input neutral (N)
terminal respectively. For the AC Input and Bypass Input's neutral (N) terminals,
please refer to
3. If the UPS is not grounded, the power boards and components might be
damaged after the UPS is powered on.
WARNING:
Only authorized Delta engineers or service personnel can modify the single input/
dual input setup.
.
.
(Rear)
Screw × 8
Rear Panel
5-10
.