Studer VarioString VS-120, Руководство пользователя

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Studer Innotec SA
VarioString
28 V 2.3 User manual
Priority of DIP switch
DIP switch 1 allows activating the settings defined by the DIP switch bank. This activation will not be
taken into account if the parameter {14174} does not allow it. When the settings defined by the DIP
switch bank are not activated, the default parameters (see list in chap.16) are applied. These
parameters can be modified by means of the remote control RCC-02/03.
Pos. n°1 Function
OFF
DIP switches not taken into account. Default parameters, or those set by the remote
control RCC-02/03 are active.
ON DIP switches are taken into account if authorized by {14174}
DIP switches 2, 3 and 4 allow the battery cycle to be modified as per the table below in order to
adapt it to the various types of most common lead-acid batteries. The following values are for a 48V
system.
Pos n° Battery type Floating
voltage
Absorption
voltage/period
Equalization (30min)
2 3 4
OFF OFF OFF Open 54.4V 57.6V / 2h No
ON OFF OFF Sealed w/short abs. 54.4V 57.6V / 1h No
OFF ON OFF GEL 55.2V 56.8 / 2h No
ON ON OFF AGM 53.6V 57.2V / 2h No
OFF OFF ON Sealed w/o abs. 54.4V No No
ON OFF ON Open +
equalization 54.4V 57.6V / 2h 63.2 V - 1/ 20 days +
manual
OFF ON ON Open + manual
equalization 54.4V 57.6V / 2h 63.2 V + manual
ON ON ON Open - reduced
voltage 53.6V 57.2V / 2h 63.2 V - 1/ 20 days +
manual
If a VarioString is interconnected (communication) to an Xtender inverter/charger, the
VarioString battery cycle will be automatically synchronized with the cycle of the Xtender in
the system. This function may be disabled by parameter {14036}.
When several VarioStrings are interconnected (communication) and linked to the same
battery, differences in production (power) are normal, especially in the following cases:
 The units are in voltage regulation phase (absorption, equalization, floating), and in
this case the current distribution may be very uneven. This situation is normal and
has no influence on the system efficiency.
 The equipment is in a bulk phase; in this case the difference is due to the
difference in size, orientation, cleanness, shade or any other situation that may
influence the production capacity of the solar generator. This situation may require
the generator to be checked in order to clear/remedy the possible fault.
The DIP switch parameter settings are prioritized over the parameter settings of the RCC.
Therefore, if the parameter {14174} authorizes the use of the DIP switch and the position 1
of the DIP switch is activated (in ON position), the DIP switch will have priority over the
parameter settings in the RCC. In this case, the following RCC parameter values will not be
taken into account:
 Parameter related to the cabling of the PV modules {14002} (only VS-120)
 Parameters related to the battery cycle {14005}, {14009}, {14021}, {14017}, {14024},
{14008}, {14011}, {14023}
On the contrary, if the DIP switch is not activated (position 1 of the DIP switch is off or
parameter {14174} prohibits the utilisation of the DIP switch, the parameters of the RCC
related to cabling of the PV modules and the battery cycle will be utilized.
If the default parameters (factory settings) are modified, the new values must be reported
in the parameter table in chap. 16 at the end of the manual which must remain on the
installation site at the disposal of the maintenance personnel.