Studer VarioString VS-120, User Manual

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Studer Innotec SA
VarioString
User manual V 2.3 33
Halted (082): PV overvoltage: the solar generator has a voltage higher than 600V (parallel or
independent connection) or higher that 900V (series connection).
Message (083), (170), (171): No solar production in the last 48h: no PV voltage has been detected
for 48H. The PV generator has probably been disconnected. Check the protection devices (fuse or
circuit breaker) and/or check the wiring.
Message (084): Equalization performed: indicates the end of the equalization cycle.
9.3 C
ONFIGURING THE
V
ARIO
S
TRING USING THE REMOTE CONTROL
RCC-02/03
Many parameters are stored in the VarioString internal memory. When a parameter is modified using the
remote control RCC-02/03 (hereafter referred to as RCC), it is sent to the VarioString and stored permanently.
If the RCC is removed from the system, this parameter continues to be used by the VarioString with
this modified value. If the VarioString is disconnected and then connected again, the new value can
be retrieved from the memory. This allows for example to pre-program a VarioString at the workshop
and to supply it to a customer, ready for his specific application.
If the settings made using the DIP switches are disabled, either because the Pos 1=off or because the
parameter disabling the DIP switches {14174} = yes, the VarioString uses its stored values. The parameters'
factory values of the equipment are equivalent to the values set when all the DIP switches are in “OFF”
position, i.e. adapted to an open battery, without equalization, with an absorption voltage of 57,6V
during 2h and a floating voltage of 54,4V.
The parameter values can be modified using the RCC and are stored and applied by the VarioString.
9.3.1 The real time clock
The VarioString features a real time clock that allows among others to have a correct date and hour for
the RCC records. This clock must be set using the remote control RCC-02/03. Thanks to an internal battery,
this setting is retained even when the equipment is disconnected from its voltage source (battery or PV).
9.4 D
ESCRIPTION OF THE
V
ARIO
S
TRING PARAMETERS
The parameters of the VarioString can be modified in the menu “VarioString MPPT setting" of the RCC
remote control.
This menu allows accessing the following 4 sub-menus:
BASIC SETTINGS: contains the most common parameters to be set at commissioning.
BATTERY MANAGEMENT AND CYCLE: contains all parameters related to defining in detail the battery
cycle during all its phases.
SYSTEM: contains parameters related to the back up and restoring of the system, resets, monitoring
settings, etc.
AUXILIARY CONTACTS: contains parameters related to the auxiliary relays (optional accessory
ARM-02).
9.4.1 Convention
Functions and values of the parameters mentioned in this manual are described in this chapter. Each
parameter is defined by a short description, a number {xxxxx} followed by its value and unit by default
(xxxxx). The type of parameter (menu, signal) replaces the value between brackets when this latter
does not exist. The RCC menus are also identified by a name and a number {xxxxx} that can be
found, as per the parameter number, on the top right-hand corner of the RCC screen.
When the remote control RCC is connected to the VarioString by the communication bus
it is possible that the software versions are not compatible. It is highly recommended to
update the software of all components in the system in order to guarantee all
functionalities. Therefore, before starting the setup of the device, download the latest
software version from our website: www.studer-innotec.com on an SD card. Follow the
instructions in the RCC manual for a successful installation.