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OutBack Power Systems Inc.
Auto Sweep MPPT Mode (see page 46) seeks the
solar array’s maximum available voltage to recharge
the batteries. The MX60 is best left in this default
mode for most recharging purposes. If the output
current is below ve amps (e.g., overcast day or early
mornings and late evenings), the MX60 will operate
at the percentage of the Voc shown on the Park Mpp
(Maximum Power Point) screen. The 77% Voc default
is close to the MPP for most arrays. A higher value
may be necessary for di erent applications such as a
12 VDC array to a 12 VDC battery. To change the per-
centage of Voc, press either the <-VOC> or <+VOC>
soft key. Press the <NEXT> soft key to view the next
ADVANCED MENU screen.
The Mpp Range Limit % Voc adjusts the upper Mpp
limit of the Voc. The default MX60 MPP voltage limit
is set at 90% of the Voc and is normally left alone for
an array. If an MX60 sweep nds an MPP voltage out-
side of this range, it will revert to the Park Mpp value.
Setting to 1/2 reduces the initial sweep time on a
high input voltage array.
The MPP adjustable MX60 limits are 80%, 85%, 90%,
and 99% of the Voc. The min range limit setting may
be set to FUL if something other than a PV array is
connected to the input of the MX60, such as a Micro-
Hydro generator (see page 54), but the Voc cannot
exceed 150 VDC at any time. Press the <min> or
<max> soft key to adjust the MPP range limit. When
done, press the <NEXT> soft key to view the Sweep
Interval screen.
Use ½ value for high input arrays
to speed up initial sweep.
ADVANCED MENU
Park Mpp
77 % Voc
EXIT NEXT -Voc +Voc
ADVANCED MENU
Mpp Range Limit %Voc
min max
EXIT NEXT 1/2 90%