Delta PPM R4E, Installation Manual

Page: 78 / 96

Special Modes
In addition to the 5 modes above, hybrid inverter still have 3 special modes.
These modes cannot be enabled by user but will be enabled automatically by inverter in
some special condition.
・
Standalone mode
Hybrid inverter changes to standalone mode automatically during a power outage occur.
At this time, grid side is disconnected by inverter and home load are supported by PV and
battery power as much as possible.If the battery is not connected, only when there has
sufficient PV power can inverter enter standalone mode.
Standalone mode current flows
Standalone mode behavior
Hybrid Inverter
Battery
Charge or
discharge
Input
Output
Home Load
PV Array
19:00 12:00 07:00 00:00 24:00
PV power
PV power used
for home load consumption
Excess PV power
Battery discharges
Home load power usage
78
Service Mode