Load Sense in Series Stacking
61
Freedom SW-RVC Installation Guide
Disabling Load Sense on the
Primary Unit
In parallel stacking, load sense on the primary unit will not function
properly. When the primary unit sends out a load search pulse, a
small current also flows into the output of the secondary unit since
the two outputs are in parallel. This primary unit falsely detects a
load causing erratic load sense operation. For this reason, it is
highly recommended to disable
Load Sense
on the
Master
unit in
a parallel stacking system.
Setting Load Sense on the
Secondary Unit
The secondary unit will behave in one of two ways depending on
whether its load sense is enabled or disabled.
Load Sense
enabled
This is the recommended mode for parallel
stacking and it helps minimize battery draw.
The secondary unit continuously monitors the
output of the primary unit. If the primary unit has
more than 60% of the rated load (e.g., 1800
watts), the secondary unit will assist the
primary unit and the two will share the load
equally. Should the load on the primary unit drop
below 20% of rated load (600 watts), the
secondary unit disengages and returns to a
waiting state.
Load Sense
disabled
The secondary unit operates continuously along
with the primary unit and shares the load.
Содержание 815-3012-02
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