Advanced; Snooze Mode - Outback Power Systems MX60 Installation, Programming, And User's Manual

ADVANCED

The ADVANCED MENU allows fi ne-tuning of the MX60 operations including "Snooze" periods and
Maximum Power Point limits. In order of appearance, the following modes occur in the ADVANCED
Menu selections:

Snooze Mode

Park Mpp (% Voc)
Calibration Low CutOff
Charger Aux
Eq Misc *Advanced
Logging Log2
EXIT
ADVANCED MENU
Snooze Mode
< Lowcutoff
EXIT NEXT
NOTE: There are four Low Cutoff options:
• <90% Voc—MX60 snoozes if Voc does not rise to greater than 90% of last measured Voc during a
full sweep
• <50% Voc—snoozes if Voc does not rise to greater than 50% of last measured Voc during a
full sweep
• <Lowcutoff —default snooze mode, snoozes if initial sweep does not reach Low Cutoff Amps
during a full sweep
• Disabled—no snoozing, MX60 will cycle on and off many times (not recommended due to
ongoing relay-clicking)
OutBack Power Systems Inc.
MPP Range Limit % Voc
MPPT Mode Absorb Time Limits
From the MAIN Menu, choose Advanced and press
Light
the <GO> soft key.
GO
The MX60 wakes up when an optimal amount of
open circuit voltage (Voc) is available. The Voc varies
with external conditions, primarily the weather and
time of day, which aff ect solar panels. If the Voc is
insuffi cient, the MX60 enters "Snoozing" until either
a fi ve-minute (default) period passes or there is a 1.5
volt (default) increase in Voc at which point the MX60
reevaluates the Voc for recharging purposes. What
is the optimal amount? The MX60 tries to recharge
when the Voc is greater than the battery voltage by 2
volts, but voltage alone isn't suffi cient. An array might
have a big increase in voltage fi rst thing in the morn-
ing— more than 2 volts diff erence—but not enough
ampacity to recharge.
Snoozing also occurs if the recharging current does
MODE
not reach the user-selected cutoff current set point in
the Lowcutoff menu. Press the <MODE> soft key for
Snooze Mode options. Press the <NEXT> soft key for
the Park Mpp screen
Sweep Interval Vbatt
Wakeup Mode
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