Outback FX-R Series Operator Manual

Specifications
900-0167-01-01 Rev A 63
Summary of Operating Limits
Severe conditions cause the inverter to limit its output or shut down for protection. The most
common conditions are high voltage, low voltage, and temperature. The limits for these
conditions are summarized in Table 18. See pages 52 and 54 for more information on these
conditions and the warning or error messages which accompany them.
Table 18 Operating Limits for all FXR Models
Voltage Limits 12-Volt Model 24-Volt Model 48-Volt Model
Limit Adjustable Off On Off On Off On
High Battery No >17 Vdc <17 Vdc >34 Vdc <34 Vdc >68 Vdc <68 Vdc
Low Battery (default) Yes >10.5 Vdc
<12.5
Vdc
>21.0
Vdc
<25.0
Vdc
>42.0
Vdc
<50.0
Vdc
Temperature Limits
Limit
Transformer Output FETs Capacitors
Over Temperature
error
<125°C >125°C <95°C >95°C <95°C >95°C
Reduced charging or selling >120°C >90°C >90°C
Internal Fan <50°C >60°C <50°C >60°C <50°C >60°C
Limiting Charge Current (Multiple Inverters)
It is not advisable to set
Charger AC Limit
less than 12 Aac in a stacked system. The
Power
Save
function requires the master to activates the slave chargers in sequence only when the
charge current exceeds 11 Aac. If the setting is less than 12,
Power Save
will not activate any
other chargers. For more information on this function, see the
Power Save
section of the
FXR
Series Inverter/Charger Installation Manual
.
When the
Charger AC Limit
setting is 12 Aac or more, other active chargers add the same
amount to the total. The total current equals the
Charger AC Limit
setting times the number of
active chargers. In some systems, lower currents may be required due to battery bank size or
other reasons. To achieve lower currents, chargers can be individually set to
Off
so that the
master inverter does not activate them. (The global
Charger Control On
only enables inverters
not individually set to
Off
.) Combining the charger limit settings with a reduced number of
chargers allows better control over the current.
In Table 19,
Max Charge Adc
shows examples of DC charging values which may be
recommended for a battery bank.
Aac
converts these values into AC amperes.
On
provides recommendations for the smallest number of chargers in operation.
Set
recommends the inverter
Charger AC Limit
setting. Note that this table specifies the number of
chargers to leave
on
. This will achieve the possible closest charging output to the number
specified in
Aac
without exceeding it. All other chargers should be turned off using the
Charger
Control
menu item. (See the menu tables beginning on page 66 to locate this command in the
menu structure.)
The lowest
Adc
figures in this table allow for a single inverter to perform all charging. All
other inverters would be turned off. The highest
Adc
figures are for the maximum of ten
stacked chargers.
The recommended settings ensure the charging will not exceed a designated current.
The amount is likely to be less.