MPP Solar PIP-MS 1-5KVA User Manual page 20

Charger source priority:
16 To configure charger source
priority
26.5V
27.5V
28.5V
Available options in 48V models:
Battery fully charged
49V
51V
53V
55V
57V
If this inverter/charger is working in Line, Standby or Fault
mode, charger source can be programmed as below:
Solar first
Utility first
18
27V (default)
28V
29V
48V
50V
52V
54V (default)
56V
58V
Solar energy will charge battery as
first priority.
Utility will charge battery only when
solar energy is not available.
Utility will charge battery as first
priority.
Solar energy will charge battery only
when utility power is not available.