Manual Bypass Mode_ Dual Input_ Single Unit - Delta Modulon DPH Series User Manual

3.2.4 Manual Bypass Mode_ Dual Input_ Single Unit

When the UPS needs maintenance, you can manually switch the UPS to manual bypass
mode. To let the UPS run in manual bypass mode, please follow the procedures below:
1
Press the LCD's ON/ OFF button (
2
up to ask
3
Turn on the Manual Bypass Breaker (Q2).
4
If the end user installs an additional Input Breaker to control the ON/ OFF status of the
5
6
7
8
Turn off each external battery cabinet's breaker and take out every battery module
(optional) from the UPS's battery module slot. For the battery module slot's location,
please refer to 2.6 Internal View. For battery module (optional) information, please
refer to 5.9 Battery Module (Optional). For external battery cabinet information,
please refer to 5.6 External Battery Cabinet Connection Warnings.
personnel can perform maintenance safely. For manual bypass mode diagram, please see
Figure 3-18
BYPA.
MAIN
Batteries
(Figure 3-18: Manual Bypass Mode Diagram_ Dual Input Single Unit)
Q2
Static Switch
Q1
Rectifier
3-17
) once and the 'POWER OFF?' screen will pop
Inverter
Q3
3 Operation Modes
YES'.
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