Studer Innotec SA
VarioString
User manual
39
9.4.5.8.6
Equalization with fixed interval {14023} (yes)
When this parameter is activated (yes), the battery charge cycle with an active equalization phase
starts at the interval specified by the following parameter {14024}.
9.4.5.8.7
Days between equalizations {14024} (26 days)
This parameter determines the number of days in between the equalizations. This counter is reset to
zero when the equalization is activated manually.
9.4.5.8.8
End of the equalization triggered by the current {14025} (no)
Progressively, during the equalization phase, the charging current decreases naturally. If the bulk
phase has been carried out with a current appropriate for the battery, it is not necessary to wait for
a certain period to finish charging. The equalization phase can be interrupted when the battery
charging current goes under a certain threshold. This can be used in order to reduce the equalization
duration and the electrolysis phenomenon related to it.
9.4.5.8.9
Current threshold to end equalization phase {14026} (10 Adc)
This parameter determines at which current the equalization phase is considered finished. The next
phase starts, when the charger current goes below this value.
9.4.5.8.10
Equalization before absorption phase {14019} (yes)
This parameter determines if during the charge cycle the equalization will take place before or after
the absorption phase. By default, the equalization phase is carried out before the absorption phase.
A= equalization voltage, B= absorption voltage, C= floating voltage
9.4.5.9
New cycle {14027}
Usually, batteries are charged during the day via the PV generator then partially discharged during
the night by the user. The next day, a charge cycle starts again (bulk-absorption-floating). To start a
new complete charge cycle the battery should be discharged below the conditions set by the
parameters {14029} to {14034}. If these conditions have not been met because, for example, the
installation has no users, a new absorption phase will not be necessary as this would lead to slight
battery water consumption. In this case, the charge cycle is kept in floating phase.
9.4.5.9.1
Force a new cycle {14028}
This parameter enables to force manually a complete charge cycle. The VarioString switches
immediately to the bulk phase.
In the case of incomplete charging cycles (for example when charging with solar
generators), this function is useful also to limit the repetition of the equalization cycles.
When the number of days is reached, a new cycle is not initiated automatically. The
equalization will take place during the following charge cycle.
Содержание VarioString VS-120
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