Basic Menu {10000} (Menu); Management And Battery Cycle {10003} (Menu) - Studer VarioTrack VT-40 User Manual

Studer Innotec SA
VarioTrack
8.4.3.1 Auxiliary relay parameters
A list including the auxiliary relay parameters can be found at the end of this manual on page 48.
8.4.4 Basic menu {10000} (menu)
8.4.4.1 System voltage {10001} (Automatic)
The VarioTrack can recognize the battery automatically. When powered up (battery side), it
measures the existing voltage and detects whether it is a 12V, 24V or 48V battery.
The VarioTrack can be forced to operate with a certain voltage thanks to parameter {10001}. When
the battery voltage is clearly known, it might be useful to set the battery voltage (12V, 24V or 48V).
This may avoid a possible confusion when connecting an extremely discharged battery and may
allow recovering such a battery.
8.4.4.2 Synchronization of a battery cycle with an Xtender {10037} (yes)
When a Studer inverter of the range Xtender is used in the system, it can transfer to the VarioTrack its
battery charge setting so that they can operate together in an optimum way.
Synchronization allows a coherent operation of multiple units which participate to the battery
charging and avoids multiple successive equalizations triggered by each charger.
8.4.4.3 Battery floating voltage {10005} (13.6V/27.2V/54.4V)
Determines the voltage applied when the battery is fully charged. This voltage prevents self-
discharge and keeps the battery to its optimum charge level.
8.4.4.4 Absorption voltage {10009} (14.4V/28.8V/57.6V)
Determines the battery voltage during the absorption phase. See chap. 7.2
8.4.4.5 Equalization authorized {10017} (no)
Determines whether the equalization phase (triggered manually or automatically) is allowed or not.
8.4.4.6 Equalization voltage {10021} (15.6V/31.2V/62.4V)
Determines the battery voltage during the equalization phase.
8.4.4.7 Restoring the default parameters {10056} (signal)
Sending this signal restores the original values of the VarioTrack parameters.
If the installer has made some adjustments during the commissioning of the installation, this
function does not restore the factory settings but those made by the installer.
8.4.5 Management and battery cycle {10003} (menu)
The VarioTrack battery charger is designed to ensure a
battery charge as complete as possible. The charge process,
described in detail in chapter 7.2, is managed in 4 successive
phases of which only 3 are activated by default. Thus the
VarioTrack will carry out only phases 1 (bulk), 2 (absorption)
and 4 (floating) according to a charge profile as per the
figure to the right which represents the basic cycle. This basic
cycle takes place automatically.
The charge curve obtained this way depends on a whole
series of parameters that may be freely modified in order to get a charge profile that meets at best
the requirements set by the manufacturer or the user.
If the BTS-01 temperature sensor is used, the voltage regulation thresholds of the battery are
corrected in real time according to the battery temperature. The value of this compensation in
mV/°C/cell for a reference temperature of 25°C is set by parameter {10036} to -3mV/°C/cell. For
example, at 30°C for a 24V battery having thus 12 cells of 2V: (30-25)*12*(-3/1000) = -0.18V, a floating
set to 27.2V is compensated to a value of 27.02V.
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