STUDER Innotec
Xtender
22 V.3.2.0 User manual
case the LED “charge” (4) goes out. The consumers must ensure that they have average
consumption that is less than the power of the source (generator or public grid) in order to avoid a
complete discharge of the battery. These situations are set out in the figure below.
Fig. 3a: Charge cycle example with input currant limitation “Smart Boost”
If the BTS-01 temperature sensor is used, the voltage adjustment thresholds for the battery are
corrected in real time by means of the battery temperature. The value of this correction is set by
the configuration {1139} in the configuration table p. 41.
Much more complex charge profiles or exclusion of the charger can be configured using
the RCC-03/03 remote control.
Configuration of the battery charger is under the responsibility of the operator. Incorrect
configuration that does not correspond to the charging methods of the battery
recommended by the manufacturer may be dangerous and/or considerably diminish
the battery service life. If the factory settings are modified, it is imperative that the new
values be entered in the configuration table p. 41
6.2.5
Limiting the input current by limiting the charger current
In order to best use the resources available at the input (depending on the generator size or the
grid output) the Xtender has a system known as power sharing.
This is a system that allows the current of the charger to be limited – from its target value {1138} to 0
– according to the current used at the output in relation to the maximum current available at the
input set by the configuration {1107}. The greater the current at the output, the more the part of the
current at the input assigned to charging the battery is reduced. If the current exceeds the limit
{1107}, the transfer relay will remain closed and the input source is likely to be overloaded bringing
the protection device (H) to open. Exceeding the limit can be forbidden by the configuration of
the parameter {1436}. If so, if the input current limit {1107} is reached, the transfer relay will be open
and the consumer will remain supplied exclusively by the inverter (battery) as long as the output
current exceeds the limit of the input current.
This system allows the sharing of power available by giving priority to the AC output (AC out) and to
the consumers who are connected to it. The charger will only use the power not utilised at the
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