Studer VarioString VS-120, Руководство пользователя

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Studer Innotec SA
VarioString
User manual V 2.3 29
DIP switches 5 and 6, reserved.
For the VS-120 the DIP switches 7 and 8 allow the definition of the topology of the PV module
connections, which can be done in 3 different ways on the VarioString VS-120: independent (each
string of PV modules connected to one VarioString PV input), in series or in parallel. With the
automatic position, the VarioString VS-120 will determine itself the connection topology. In this case,
the VarioString VS-120 will perform a cabling test when it detects a voltage at both the PV inputs. Or,
if a voltage at only 1 PV input is detected, the test begins after 15 minutes. The automatic detection
requires a certain power level to be available. In the case of system commissioning at night or with
a very low insolation, the test will be postponed until the necessary conditions are present.
Pos n° Connection mode of the
MPPT inputs
7 8
OFF OFF Automatic
ON OFF MPPTs independents
OFF ON MPPTs in series
ON ON MPPTs in parallel
Connection of multiple VarioString
When several VarioStrings are interconnected by the communication bus and to the same battery,
if the DIP switch is used, it is imperative that the DIP switch settings are consistent among the
VarioString. The following table shows which DIP switch positions should be identical when more than
one VarioString is connected together.
Position
Function
Constraint if multiple
VarioStrings
VS-70 VS-120
1 Activation of DIP switch (of authorized by {14174}) Identical for all
2 to 4 Configuration of battery cycle Identical for all
5 to 8 5 à 6 Reserved -
- 7 to 8 Configuration of cabling of PV modules Can be different
Only the configuration of the cabling of the MPPT inputs can be different from one VarioString to
another. The battery charge cycle should be configured the same (one common battery for all the
VarioStrings). The battery charge cycle will therefore be automatically synchronized in all the devices.
Blockage of the DIP switch
Settings defined by the position of the DIP switches may be inhibited (disabled) with parameter
{14174} using the remote control RCC-02/03. The VarioString's operation will then be defined only by
the parameter values set by default or by the RCC remote control.
9.2 D
ISPLAYING THE EQUIPMENT STATUS USING THE REMOTE CONTROL
RCC-02/03
9.2.1 Displaying the status of a single unit system
The VarioString screen allows displaying six values in real time. Four
values (a) can be chosen among many measured and calculated
values indicated in the table below and two show the status of the
auxiliary contacts (b) (these fields are visible even if an ARM-02 is not
present).
9.2.1.1
Choosing the displayed values
To choose which values to display, press the SET button to enter the first field which will appear with
a black background.
To modify the field content, use the SET button; then by using the arrows, consult the various displayable values
and select them as permanently displayable values in the related field by validating with the SET button.
a b