Studer VarioString User Manual page 34

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VarioString
8.4.5.6.3 Equalization voltage {14021} (62.4 Vdc)
This parameter determines the maximum voltage during the equalization phase.
This voltage is corrected by the temperature compensation factor {14035} if a temperature
sensor (BTS-01 or BSP) is installed in the system.
Once equalization phase is initiated, disabling the phase does not stop the equalization.
To stop the equalization, force the transition into floating {10006}, absorption {10010} or a
new cycle {10029}. It is also possible to interrupt the equalization by pressing the « SET »
button for more than 2 seconds (procedure described in chap. 6.1.
8.4.5.6.4 Equalization current {14020} (80 Adc)
The equalization phase can be carried out with a limited current that can be adjusted using this
parameter. In any case, the current does not exceed the bulk current {14001}. As a rule, the limited
charging current is used only if the equalization is started at the end of the absorption phase.
8.4.5.6.5 Equalization duration {14022} (30 min)
This parameter determines the equalization period. The equalization phase starts as soon as the set
battery voltage exceeds the absorption voltage. When the period has elapsed, the charger goes
automatically to the following authorized phase. If the voltage cannot be kept (no sunshine,
clouds...), the countdown is paused.
8.4.5.6.6 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 {14025}.
8.4.5.6.7 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.
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.
8.4.5.6.8 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.
8.4.5.6.9 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.
8.4.5.6.10 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.
34 V 1.0 User manual