Standard vs. australian default settings, Maximum-power voltage (vmp), Applications – Outback Power Systems FLEXmax 80 Owners Manual User Manual
Page 101
Applications
900-0009-01-00 Rev
C
99
Maximum-Power Voltage (Vmp)
Maximum-power voltage (Vmp) is the operating voltage for the PV array at which the array generates
the most wattage. When designing the PV array, it is recommended for the Vmp to be approximately
12 to 24 volts higher than the nominal battery voltage for optimum performance. This will ensure that
the Vmp is always above the battery voltage, which is required for charging. Higher voltages are not
recommended, as they may reduce the FLEXmax conversion efficiency.
IMPORTANT:
Check the PV array voltage before connecting it to the FLEXmax.
Standard vs. Australian Default Settings
Several version settings are available for the FLEXmax upon initial setup. These can be selected upon
initial power-up. (See page 15.) The English and Spanish versions have the same standard default
settings; however, the Australian version has certain default settings that are different. However, there
are no differences in performance and efficiency between the two versions. The standard and
Australian version can be identified as follows:
Figure 101 Standard vs. Australian Power-up Screens
Table 6
Default Settings Standard vs. Australian
Settings Standard
Australian
Charger Absorbing
Float Absorbing
Float
12 V
14.4 V
13.6 V
14.4 V
13.8 V
24 V
28.8 V
27.2 V
28.8 V
27.6 V
36 V
43.2 V
40.8 V
43.2 V
41.4 V
48 V
57.6 V
54.4 V
57.6 V
55.2 V
60 V
72.0 V
68.0 V
72.0 V
69.0 V
Equalize
Equalize Volts
Equalize Volts
12 V
14.4 V
14.7 V
24 V
28.8 V
29.4 V
36 V
43.2 V
44.1 V
48 V
57.6 V
58.8 V
60 V
72.0 V
73.5 V
Equalize Time
01 Hours
03 Hours
OutBack 12V
Power
Systems
Charge Controller
Standard Power Up Screen
OutBack 12V
Power
Systems
Charge Controller - AU
Australian Power Up Screen