1 Safety Instructions And Waiver of Liability 1.1 Symbol of Safety Instructions Safety instructions for personal protection and instructions that refer to the safety functions of the system are marked with this sign and are printed in bold letters. For safe installation of other components which are not mentioned in the PV System-Manager instructions, please see the corresponding safety manual of the component manufacturer.
Keep children away from any and all electronics! Fatal accidents can occur! 1.4 Waiver Of Liability The manufacturer (STECA and its assigned representatives) cannot check that this manual is strictly followed, nor the conditions and methods for installation, operation, use and maintenance of the System- Manager.
trouble shooting ad 6.) LC-Display not working: battery fuse ok? cabling ok? polarity ok? check battery voltage at A+ and A−terminal ? display plug loose? Press the three left buttons ▴ ▾ ok simultaneously to restart the display. ad 7) no module current: polarity ok? module connection ok (parallel/serial)? check module voltage outside the PowerTarom? solar radiation high enough? ad 8.) load not working: “deep protection”...
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Please take care, that in this case all additional power sources must have a voltage limitation to prevent the battery from Data transmission being overcharged. • A single shunt can be put into the battery cable that measures the balance between the charging and discharging currents.
• Instead of a cable modem you could order a GSM modem as well. With this modem you are complete independent to any infrastructure • The TarCom version ETN can be integrated into an Ethernet computer network. 4 Functioning The System-Manager monitors the charge status of the battery, regulates the charge process as well as it switches the loads on -off in order to make full use of the battery and to extend its life.
4.2 Detailed Description 4.2.1 SOC (State Of Charge) Calculation With the help of a proprietary patented software algorithm, the System-Manager is capable to ”learn“ the characteristics and parameters of the battery. This SOC reading is very accurate and therefore is the basis for most controlling and monitoring functions.
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4.2.4 Voltage Determination Due to a special measuring method, battery sensor wires are no longer needed. The drop in voltage on the battery cable is compensated after the first full charge process. This is why no further sensor or wiring is needed, the installation is simplified, and the reliability of the system is increased due to the fact that sensors and wiring cannot break.
4.2.10 Control Keyboard By using the tact switches underneath the LCD screen, the factory set values can be configured to the user’s custom requirement. Freely programmable values can only be changed within a pre-set window. These minimum-maximum values are selected in a way that even extreme adjustments do not lead to severe damage to the lead batteries.
condition “night“ is shown instead of the actual module current. The night condition can only be determined if no reverse blocking diodes between the modules and the PowerTarom are used. Another feature of the System-Manager recognizes whether a solar module has been connected or not (I_mod = no modul).
Example Of Confi guration (chapter 6.7, page 17) for your convenience. All other parameters should only be changed if you have sufficient information on the battery in use. With this System-Manager, the user of a photovoltaic solar system has the possibility to design his unique solar power system.
Before this menu function is activated, it is necessary to disconnect the solar PV modules and all loads. Before Uninstalling (chapter 7.5, page 21) please refer to the related information. After having scrolled to this window, a self test can be started by pressing OK.
Example Of Configuratio n (c hapter 6.7, page 17 Within t his m enu, the battery e lect rolyte type can b e set. After having entered this menu, by pressing OK you may toggle between ▲▼ fixed to liquid electrolyte. Setting this to fixed deactivates the win for programming t acid density as w...
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xample Of Configuration (chapter 6.7, page 17) describing how to proceed. The end of charge “float” voltage serves for maintaining the charge in the battery for long periods and preventing self-discharge. This voltage should not be too high, since this may lead to permanent gassing, which damages the battery.
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Battery charging voltage is passed on directly to the loads by the System-Manager! Therefore, during equalize charging, high charging voltages can be programmed that may damage some loads. Please select this equalize charge voltage very carefully and compare the desired value to the battery and load (appliance) manufacturers' data sheets.
6.7 Example Of Configuration 6.7.1 Factory Pre-Set Con figuration After a DC power failure from an occurrence such as blown safety fuses or disconnecting the battery, usually no parameter values or functions have to be programmed again, since these values are stored in the System-Manager’s EEP ROM (a special memory chip that does not lose its data on power failure).
6.8 Example Of Programming This example shows how pre- set configurations can be altered within the main menu item “PROG”. Changes are displayed in black letters. First of all, open the cover of the System-Manager, and press any key. The Main Menu with the four submenus will appear in the display.
The ideal location for the battery is a well-ventilated battery room (keeping a minimum safety distance of 30 cm from the System-Manager) inside the building but nearest to the solar PV array. Since both charging and discharging currents are running via the battery cable connections, close proximity and short th k cables to the battery are recommended.
7.3.3 Cabling Solar modules create currents in the case of light incidence. Even in the case of slight light incidence full voltage is given. • Solar modules must in no case be set free of voltage by short circuit! Spark development! •...
7.4.5 Connecting the alarm contacts • The signal relais switches if a system fault occurs: undervoltage, SOC only 10% over disconnect value, overvoltage, … (see 4.2 alar m contact). • In case of an alarm the terminal contacts #5 / #6 close and #5 / #4 opens. •...
8 Overvoltage protection in your photovoltaic system ve vo ltage can damage your PV system Photovoltaic systems have to be mounted very often on sites like mountain tops or next to high structures like transmission poles. These locations have a high risk of damages due to lightning. Harmful levels of over voltage will occur through direct hits or even more frequently induced by flashes as far as 100 meters.
external over voltage protectors have to be used at the module junction box (expulsion-type arrestor, varistor, suppressor diode with ≥10kA) lay grounding cables separately to the DC cables Inside protection zone protected photovoltaic field Outside protection zone unprotected photovoltaic field avoid loops between module cables keep modules and lightning protection next to each other connection between modules and charge regulator...
10 Hints for the usage of multiple PowerTaroms In a photovoltaic system several PowerTarom regulators can charge a battery simultaneou sly. Please note the following notes f or an optimal installation: battery: the battery terminals (A+ and A ) of all regulators are connected to the same battery modules: each PowerTarom needs...
11 Maintenance Since there are no moving parts (fan or relais), no maintenance is necessary for the controller itself. The heat sink must be kept clean to assure cooling. As far as the cables are concerned they must be checked on corrosion. Due to corrosion the transfer resistance increases and the contacts could become so hot that defects arise.
13 Malfu nctions and errors The controller is designed for many years of constant use. Nevertheless, there may be faults. It is very often, however, that the causes for these faults and errors do not occur by the controller itself, but in the peripheral system components.
EEProm The EEProm of the controller cannot be read or • Disconnect the charge Error described any longer. Remedy: interrupt the controller and reconnect it in controller’s supply of voltage and reconnect it the order described. If the again. If the error cannot be cleared, please see indication remains, the your authorised dealer controller must return to the...
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