Outback Power Systems MX60 Installation, Programming, And User's Manual page 55

To adjust these values and enhance the performance of these systems, use the MX60 ADVANCED
MENU to make changes. To determine your micro-hydro or fuel cell system's best settings for MPP
voltage, do the following:
1. Use Auto Sweep and record the watts yielded. This value should be in line with your generator
capacity.
2. Switch to U-Pick % Voc mode and input diff erent Park Mpp percentage values, checking the
watts value for each. This will require some experimentation.
• The MX60 can operate at any of the following fi xed percentages, selected in the" Park Mpp"
screen in the ADVANCED MENU selection:
40%, 50%, 67%, 70%, 72%, 75%, 76%, 77%, 78%, 80%, 81%, 83% or 85% of the measured
open circuit voltage
• The user will have to experiment with each of the 13 fi xed percentage values to
determine an appropriate fi xed percentage value. Typical fi xed values between 67% up to
78% have provided optimal results; however, each system is diff erent and these fi xed
percentage values should be used as guidelines only
3. Compare the Auto Sweep and U-Pick % Voc values and determine which will best fi t
your system.
In addition to establishing the best mode and percentage values for determining the MPP voltage,
a user can also adjust the sweep interval and the range of values the MX60 uses to search for the
MPP voltage.
(If necessary, re-enter the system password 141 at any point while optimizing the
system's performance.)
OutBack Power Systems Inc.
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