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Operating During Transition Between Shore Power and Inverter Mode
The allowable Freedom HF input voltage ranges are shown in the
following table for Freedom HF 1500 and Freedom HF 1800 T:
Operating
Condition
Voltage Range
Freedom HF
1500 only
Voltage Range
Freedom HF
1800 T only
Comment
Full Operating
Range
Low, Mid, High:
12.1–15.5 volts
Low:
10.5–15.5 volts
Mid:
11.8–15.5 volts
High:
12.1–15.5 volts
Low refers to low limit of the low
voltage threshold.
Mid refers to middle limit of the low
voltage threshold.
High refers to high limit of the low
voltage threshold.
Optimum
Performance
12.1–13.0 volts 12.1–13.0 volts
Low Voltage
Alarm
Low, Mid, High:
<12.6 volts
Low: <11.0 volts
Mid: <12.3 volts
High:<12.6 volts
A silent low battery warning shows
fault code on the display.
Low Voltage
Shutdown
Low, Mid, High:
<12.1 volts
Low: <10.5 volts
Mid: <11.8 volts
High:<12.1 volts
A single one-second low battery
alarm beeps and the display shows
fault code . After five minutes,
the unit shuts down completely.
Instant Low
Voltage
Shutdown
<10.2 volts <10.2 volts After two seconds below the limit,
the unit shuts down and the low
battery alarm sounds a long beep
continuously for 30 seconds.
High Voltage
Shutdown
15.5 volts or
more
15.5 volts or
more
The over-voltage alarm beeps every
second and the display shows fault
code alternating with the battery
voltage. The status LED turns red and
the display screen is turned OFF
within 30 seconds to protect itself
from excessive input voltage.
NOTE: Although the Freedom HF
incorporates over-voltage protection,
it can still be damaged if input
voltage exceeds 16 volts.
Freedom HF InvChg Owners Guide.book Page 23 Tuesday, April 29, 2014 12:10 PM