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Application Notes, Continued
Battery temperature compensation with other slopes:
The MX60 uses a 5mV per degree C per cell (2V) Compensation slope required by UL if you run
the MX60 at or near the default system voltages. If you need to use slopes other than this, you
may be able to pick a system voltage other than the one you are running, and change the charg-
er Absorb and Float voltage settings up or down from that default setting to achieve a more or
less agressive slope. If going lower in voltage, pull down the Float voltage first, since the Absorb
voltage will not be settable below the current Float voltage setting. If going higher in voltage, pull
up the Absorb setting first, before bringing up the Float voltage above the current settings.
Here is a table of MX60 compensation based on system voltage for reference:
12V system -30mV/degree C
24V system -60mV/degree C
36V system -90mV/degree C
48V system -120mV/degree C
60V system -150mV/degree C
CALLING THE FACTORY FOR MX60 ASSISTANCE:
When calling OutBack Power for product assistance, please have the following information ready
if possible:
MX60 Serial number and software version. The software version can be viewed by exiting the
Status screen to the menu screen, and then exiting the menu screen back to the Status screen
and holding down the EXIT key.
The nominal PV array and battery voltage.
The PV array operating voltage and battery current and any Status screen operating mode dis-
plays, such as MPPT, Absorb or Float.
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