32
Freedom Sequence Intelligent Power Manager Owner’s Guide
Circuit Level Advanced Settings
Reconnect Margin
When a load circuit connected to either Line1 or Line2 is shed by Freedom
Sequence to avoid an overload condition, Freedom Sequence stores in its
memory the current that load circuit was drawing before it got shed (that is,
Last Load Shed
current).
The Freedom Sequence continuously checks for the
Headroom Current
1
and compares it with the
Current To Reconnect
value for the circuit. If the
Headroom Current
is more than the
Current To Reconnect
for a time-
period that is more than the
Connect Sequence Delay
setting, Freedom
Sequence will reconnect that circuit.
Current To Reconnect
is calculated based on
Reconnect MGN
and
Last
Load Shed
.
For example, if
Circuit1
was set to a reconnect margin of
20%
and the
Last Load Shed
current in memory was 10 amps, Freedom Sequence will
wait for a
Current To Reconnect
of 12 amps calculated as:
Last Load Shed
+ (20% ×
Last Load Shed
)
,
to be available before reconnecting the circuit.
By default, the factory setting of
Reconnect MGN
for all AC relays
is set to
10%
.
Battery Voltage Triggers
The Freedom Sequence has four DC relays which can be used to connect
and disconnect DC loads on the system based on battery voltage thresholds.
Each DC relay has a
N/O
/
N/C
contact that will toggle (switch between
N/O
or
N/C
) if the battery voltage sensed by Freedom Sequence exceeds a
Batt
High Trig Set
voltage or drops below the
Batt Low Trig Set
voltage.
The DC relay will toggle back to the normal position when the battery
voltage drops below the
Batt High Trig Clear
voltage or rises above
the
Batt Low Trig Clear
voltage. Each DC relay can be configured with
a unique set of
Battery High
/
Low Trig Set
and
Battery High
/
Low
Trigger Clear
voltages.
By default, each of these voltage triggers is configured to:
Each of the triggers can be configured using similar procedures shown in
Figure 11 on page 27.
1.Headroom current is also known as available capacity.
Battery Voltage Trigger
Default
12-volts
Default
24-volts
Low Battery Trigger Set
[10.5V]
[21.0V]
Low Battery Trigger Clear
[11.0V]
[22.0V]
High Battery Trigger Clear
[14.0V]
[28.0V]
High Battery Trigger Set
[14.5V]
[29.0V]
FSequence IPM Owners Guide.book Page 32 Thursday, October 6, 2011 3:33 PM
