Steca Tarom 4545 Installation And Operating Instructions Manual
Solar charge controller
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Summary of Contents for Steca Tarom 4545
- Page 1 Solar Charge Controller Adjustable, for hybrid and telecommunication systems Tarom 4545 (12 V/24 V accumulator) Tarom 4545-48 (12 V/24 V/48 V accumulator) Installation and operating instructions Z03 | 17.05...
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Page 2: Table Of Contents
Table of contents General safety instructions ....................5 Identification ........................6 Scope of delivery ........................ 7 Proper usage........................8 Markings ..........................9 Symbols for warnings and notices ................9 Keywords ......................... 9 Quick guide ........................10 Overview of the controller ....................11 Menu structure ......................... - Page 3 Performing initial commissioning ..................31 Dismounting the controller ....................34 System functions ......................35 12.1 Protection functions ....................35 12.1.1 Controller overload ................. 35 12.1.2 Overheating of the controller ..............35 12.1.3 Deep discharging of the battery ............. 35 12.2 Control mode ......................
- Page 4 14.3.9 StecaLink bus ..................52 14.3.9.1 StecaLink slave address setting ..........52 14.3.9.2 StecaLink master setting ............53 14.3.9.3 Changing the slave settings ..........54 14.3.10 SD card ....................56 Troubleshooting........................ 58 15.1 Event messages ..................... 58 15.2 Errors without event messages ................64 15.3 Self test .........................
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Page 5: General Safety Instructions
General safety instructions This document is part of the product. Only technical professionals may perform the work described in this manual. Install and use the device only after reading and understanding this document. Always perform the measures described in this document in the sequence specified. Keep this document in a safe place for the entire service life of the device. -
Page 6: Identification
Issue version of the manual Manufacturer's address See nameplate on the charge controller Optional accessories External temperature sensor Steca PA TS-S Current sensor PA HS400 StecaLink termination plug Display The controller indicates the version of the manual matching the software under ‘Main menu’... -
Page 7: Scope Of Delivery
Scope of delivery Tarom 4545 or Tarom 4545–48 Operating instructions... -
Page 8: Proper Usage
Depending on the battery used, the connected loads must be suitable for use with one of the following voltages: Tarom 4545: 12 VDC, 24 VDC Tarom 4545–48: 12 VDC, 24 VDC, 48 VDC The controller performs the following tasks: –... -
Page 9: Markings
Markings Symbols for warnings and notices Symbol Description Location General danger warning Manual Danger from electricity Manual Read the manual before using the product. Device Danger from hot surfaces Manual, Device General information. Manual The following information describes prerequisites for Manual further operation Keywords... -
Page 10: Quick Guide
Quick guide DANGER! Risk of death by electrocution. Observe the safety instructions in chapter 9.1. -
Page 11: Overview Of The Controller
MASTER RJ45 socket for StecaLink Bus Positive ground, optional Open UART interface, 3.3 V Temperature sensor connection TEMP for Steca PA TS-S AUX 2 relay output AUX 1 relay output Technical data at section 18.1. -
Page 12: Menu Structure
Menu structure For the sake of clarity, only the and ‘SET’ operating buttons are illustrated. Status display Main menu Submenus Operation Basic setting Output settings Load mode Internal data Deep discharge Battery voltage AUX 1 logger protection SD card AUX 2 Select function System Function... -
Page 13: Installation
Installation The following section describes only the installation of the controller. Observe the respective manufacturer's manual when connecting external components (solar module, battery, load, sensors). -
Page 14: Safety Instructions
Safety instructions DANGER! Risk of death by electrocution! Observe the following safety instructions when performing the measures described in the installation section. General information – Only technical professionals may perform the work described in the 'installation' section. – Do not open the controller case. –... - Page 15 WARNING! Danger of acid injuries. – Do not subject the battery to open flames or sparks. – Provide adequate ventilation in the installation location of the battery. Inflammable gases can escape from the battery. – Follow the charging instructions of the battery manufacturer. ATTENTION! Danger of destroying the device through overloading.
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Page 16: Connections And Operating Buttons
A termination plug can be acquired separately at your Steca dealer. – A StecaLink slave device may only be connected to one StecaLink master. Multiple Steca- Link slave devices are connected to form a communication chain. Only one StecaLink slave device is connected to the StecaLink master device. - Page 17 Bus cabling example using one Tarom 4545/4545-48 and one or more PA HS400 current sensors Fig. 4 Example of connecting a PC to the Tarom 4545/4545-48, e.g. for the update function Fig. 5 The connection of Tarom 4545/4545-48 slave connection to other Tarom 4545/4545-48...
- Page 18 The bus cable pin assignments are specified in the following table. Signal + Battery voltage (master socket) Signal (slave socket) The battery voltage is looped through from the master as supply voltage for slaves. GND or rather battery minus...
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Page 19: Stecalink Master Connection
757324 / 757325 or higher, as well as a APP software version 1.7.0 or higher. It is never permitted to integrate more than one Tarom 4545 / Tarom 4545-48 in a StecaLink bus because otherwise dangerous compensation currents may occur! Set a unique slave address on the device with the StecaLink slave connection, see section 14.3.9.1 'StecaLink slave address setting'. -
Page 20: Slot For Microsd Card ( In Fig. 1)
Fig. 7 Master/slave connection of two Tarom 4545/4545-48 via the master connection is not possible Fig. 8 Tarom 4545/4545-48 / Tarom MPPT 6000-S connection is not possible without Tarom MPPT 6000-M StecaLink bus cable pin assignment: see page 23. 9.2.3 Slot for microSD card (... -
Page 21: Temperature Sensor Connection Temp ( In Fig. 1)
Heavy loads directly connected to the battery can be switched using an additional power relay connected to the AUX 1 or AUX 2 outputs, e.g. via the Steca PA EV 200. 9.2.5 Temperature sensor connection TEMP ( in Fig. 1 If the controller and battery are not located in the same room then an external temperature sensor for measuring the battery temperature must be installed. -
Page 22: Function Ground ( In Fig. 1)
9.2.7 Function ground ( in Fig. 1 DANGER! Risk of death by electrocution. Grounding causes the system to leave the safety extra-low voltage range. Protection against directly touching live components must be restored via appro- priate isolation measures. ATTENTION! – The system voltage of thin-film modules must be positive to avoid corrosion. -
Page 23: Operating Buttons
9.2.8 Operating buttons The operating buttons have the following functions: Button Function jumps down by one menu level changes the state of a control element (check box/radio button) causes the selected numeral to blink so that it can be modified answers a query dialog with Yes adopts a change jumps up by one menu level... -
Page 24: Installing The Cover
9.3.2 Installing the cover Position the cover on the casing so that the two guide lugs on the cover fit into the guide slots in the casing. Slide the cover onto the casing until it audibly latches into place. Installing the device ATTENTION! Danger of damage to the controller and reduction of power. -
Page 25: Establishing The Electrical Connections
Fig. 10 Fastening openings and free space Establishing the electrical connections Always make connections in the following sequence: CAUTION! Always make connections in the following sequence: 1. First connect the load and then the source. Example: First connect the cable to the controller and then to the battery. 2. -
Page 26: Preparing The Cables
9.5.1 Preparing the cables Label the cable ends as per Fig. 1 (M+, M–, B+, ...). Lay the battery, module and load cables directly next to each other. Do not yet connect the cables! Connect the external battery fuse, close to the battery and easily accessible, to the battery cable B+ (... -
Page 27: Connecting The Solar Module
Fig. 11 Event message with the detected system voltage (in the example: 12 V) Fig. 12 Basic setting of the status display The battery can be charged from multiple sources. The following applies: – The battery can be charged by multiple controllers connected to the battery in parallel. –... -
Page 28: Connecting Loads
Fig. 14 Display without sunshine after connecting the solar module 9.5.4 Connecting loads CAUTION! – Danger of destroying the controller through overloading. – Loads that consume more current than can be supplied by the controller must be directly connected to the battery! –... -
Page 29: Connecting Optional Components
Configure the relay outputs as per section 14. Connecting the external temperature sensor Steca PA TS-S Install the temperature sensor Steca PA TS-S near to the battery. Connect the sensor cable to contacts 7 (‘EXT.’) and 8 (‘GND’) (any polarity). - Page 30 Commissioning the microSD card CAUTION! Never forcibly insert or remove the microSD card. This can damage the card holder and/or the microSD card. NOTICE – A microSD card is not included in the scope of delivery for the device. – microSD and microSDHC cards with a capacity of up to 8 GB can be used.
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Page 31: Performing Initial Commissioning
Performing initial commissioning ATTENTION! Danger of damage to the device and reduction of power. Only technical professionals may perform the work described in this section. All the measures described in section 9.4 and section 9.5 have been completed. Showing the basic setting of the status display If necessary, press ‘ESC’... - Page 32 Setting the time Press ‘ESC’. The ‘System settings’ menu appears (Fig. left). Press to select ‘Time/date’. Press ‘SET’. The ‘Time/date’ menu appears and ‘Time’ is se- lected. Press ‘SET’. The ‘Time setting’ dialog appears (Fig. left). Press ‘SET’. The hour flashes. Press to change the hour.
- Page 33 Setting the battery capacity Press ‘ESC’. The ‘Battery settings’ menu appears. Press to select ‘Battery capacity’. Press ‘SET’. The ‘Battery capacity’ dialog appears (Fig. left). Press ‘SET’. Press to change the value. Press ‘SET’. The value stops flashing. Setting the control mode Note The control mode ‘State of charge (SOC)’...
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Page 34: Dismounting The Controller
Dismounting the controller DANGER! Risk of death by electrocution. Only technical professionals may perform the work described in this section. Observe the warning notes in section 9.1. WARNING! Danger from hot surfaces. Allow the heatsink on the rear of the device to cool down before touching. -
Page 35: System Functions
System functions 12.1 Protection functions 12.1.1 Controller overload The controller is protected from the following faults and is not damaged when these faults occur individually. Solar module or battery or load connected with the wrong polarity Solar module or battery or load incorrectly connected Solar module or load short-circuited Battery not connected Once the individual fault has been corrected the controller will operate correctly without taking any... -
Page 36: Control Mode
To do this, the controller measures the room temperature using its own internal temperature sensor and assumes that the battery is also at room temperature. If the battery is located in a different room then the external temperature sensor Steca PA TS-S (optional) should be used. -
Page 37: Battery Charging Functions
12.3 Battery charging functions 12.3.1 Float charging When the battery is fully charged, the controller automatically switches to float charging (charging with the float charge voltage). This prevents the battery from being discharged. ATTENTION! The float charging voltage must be set according to the specifications of the battery manufac- turer to ensure optimum charging of the battery. -
Page 38: Equalise Charging
12.3.3 Equalise charging Equalise charging prevents acid layering via controlled gassing and thus extends the service life of the battery. The following applies in addition: Equalise charging starts when the cycle has expired or the switch-on threshold is crossed. Equalise charging stops after the charge duration has expired. Equalise charging is switched on in the factory settings. -
Page 39: Display (Layout, Function, Operation)
Display (layout, function, operation) 13.1 Overview (menu structure) An overview of the operating structure of the display is provided on section 8. 13.2 Status display The status display consists of the Basic setting, the pages with the Measurements and the Informa- tion bar. - Page 40 Display of the current median in A. Generators/loads that are not connected directly to the device must be covered by the device specific Steca current sensor PA HS400 to allow for correct values to be displayed (depending on the sensors selected in the data logger).
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Page 41: Display Of Special States
Total discharge current of the battery: total of all battery discharge currents of the components that have been activated in the menu ’Battery settings’ ’Battery control mode’ ’Sen- sor member list’. Display of the current median in A. Total charge current of the battery: total of all battery charge currents of the components that have been activated in the menu ’Battery settings’... -
Page 42: General Operation
13.4 General operation If necessary, press ‘ESC’ for 1 s to show the basic setting of the status display. Press to display the measurements. Press ‘SET’. The main menu is displayed with the top item selected. Press to select a different entry (Fig. left). Press ‘SET’. - Page 43 Calling up the expert menu for battery settings ATTENTION! Risk of damaging the system. The expert menu allows modification of settings that require spe- cialist technical knowledge. The expert menu must therefore only be used by professional per- sonnel who know the applicable regulations and standards. ...
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Page 44: Control Functions
Control functions 14.1 Overview The load output and relay outputs can be automatically switched by the following control functions: Morning light function Evening light function Night light function Excess energy control Generator manager Alarm (AUX 1 and AUX 2 only) Timer 1 ... -
Page 45: Operation
14.2 Operation The control functions are set for each output using the following steps: Setting the operating mode ‘Main menu’ ‘Output settings’ Select an output in the ‘Output settings’ window (Fig. left). Press ‘SET’. The menu for setting the output appears, ‘Operation mode’... - Page 46 Switching control functions individually on and off ‘Main menu’ ‘Output settings’ <Output> ‘Select function’ Press and ‘SET’ to switch the control functions on and off (Fig. left). Note The switched-on control functions only take effect in the ‘Function’...
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Page 47: Functionality
Setting Timer 1 Select ‘Timer 1’. Press ‘SET’. The ‘Switch-on time’ dialog appears and the selected day is underlined (Fig. left: Monday is selected and switched off). Press to select a different day. Press ‘SET’. The state of the selected day changes (Fig. left: Monday is switched on). -
Page 48: Deep Discharge Protection
14.3.1 Deep discharge protection Switching behaviour The deep discharge protection switches the output off below the switch-off threshold and enables it again when the battery charge exceeds the switch-off threshold by the switch-on difference (similar functionality to section 14.3.5 '"StecaLink master connection"'). Operation ‘Main menu’... -
Page 49: Evening Light Function
14.3.3 Evening light function The evening light function switches the output on and off based on the brightness and time. The reference point is the time of dusk. The evening light function is suitable for loads that are operated a certain time after nightfall, e.g. lighting, heating. Switching behaviour The output remains switched on during the switch-on duration ... -
Page 50: Excess Energy Control
14.3.5 Excess energy control Excess energy control switches the output on as long as the battery has a high state of charge Excess energy control is suitable for non time-critical loads that can be specifically switched on when a surplus of energy is available, e.g. electric water heating, pumping station for filling an elevated water tank. -
Page 51: Alarm
Operation ‘Main menu’ ‘Output settings’ <Output> ‘Select function’ ‘Main menu’ ‘Output settings’ <Output> ‘Function settings’ ‘Generator manager’ ‘Starting threshold’ ‘Hysteresis’ 14.3.7 Alarm The alarm switches the ‘AUX 1’ and ‘AUX 2’ on as long as one of the selected event messages is present. -
Page 52: Stecalink Bus
14.3.9 StecaLink bus NOTICE! – The StecaLink bus is an RS-485 communication interface that uses a special Steca transmission protocol. – Various different StecaLink-compatible devices can be networked together via the StecaLink bus. – Data exchange and/or remote function execution are possible via the StecaLink bus, depending on the respective StecaLink member device. -
Page 53: 14.3.9.2 Stecalink Master Setting
14.3.9.2 StecaLink master setting NOTICE! – The master device in a StecaLink communication network controls the flow of data to the StecaLink slave members. – The StecaLink slave members must be registered at the master device. Configuration of the slaves must be performed at the master, depending on the type and functional scope of each respective slave. -
Page 54: 14.3.9.3 Changing The Slave Settings
Changing slave settings Notices Here, the device-specific settings of the slaves registered on the controller can be set. Different settings are available depending on the functional scope of the slave. ‘Main menu‘ ‘System settings‘ ‘StecaLink master menu‘ ‘Change slave settings’... - Page 55 Changing slave settings Name Notices An individual name can be assigned to each StecaLink slave. Assignment of a name is optional and is not required for ope- rating the device. The name is shown in the measurements display on the status screen.
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Page 56: 14.3.10 Sd Card
For information on handling the SD card, see 'Commissioning the microSD card' in section 9.5.5. – With the aid of the SD card, settings parameters of the Tarom 4545 / 4545-48 can be saved and loaded again. – Various different measurements, states and events can be stored on the SD card. - Page 57 Datalogger On/Off Notices Data logging to the SD card can only be generally switched on and off. Any existing data files are not deleted. Information is appen- ded to existing files. ‘Main menu‘ ‘SD card‘ ‘Datalogger On/Off’ Press ‘SET‘.
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Page 58: Troubleshooting
Troubleshooting Errors detected by the controller are indicated via event messages. With Warning and Error events the display flashes red. Information on correcting errors is provided in section 15.1 '"List of event messages"'. 15.1 Event messages Indication on the display ... - Page 59 Operation Confirming event messages An event message with the comment ‘NEW’ is displayed. Press ‘ESC’/ . The event message is confirmed. Displaying event messages ‘Main menu’ ‘Event log’ Press to page through the event messages; see following "List of event messages". ...
- Page 60 Event message Cause Remedy Text Internal error Error in the in- A serious error has occured. Contact the manufacturer. ternal memory. Sensor Short circuit or Check the following points: defect: open circuit in External temperature sensor cable extern. an external correctly connected to the controller? temperature temperature...
- Page 61 Event message Cause Remedy Text Overload Attention Danger of destroying the converter through overloading. Loads that consume more current than can be supplied by the controller must be directly connected to the bat- tery. Always directly connect inverters to the battery! Note If the event message occurs again when the load is connected then too many loads are connected to the controller.
- Page 62 Event message Cause Remedy Text Wrong The battery is Connect the battery with the correct battery connected to the polarity. polarity controller with the wrong polarity. Wrong PV The solar module Connect the solar module with the cor- polarity is connected to rect polarity.
- Page 63 Event message Cause Remedy Text MinMax out Wrong parame- Parameterise again of Range trisation Batterie-E- The overcurrent Connect battery poles correctly. If the error Fuse open protection cir- persists, contact your dealer. cuitry has trig- gered or incor- rect polarity was detected.
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Page 64: Errors Without Event Messages
15.2 Errors without event messages The causes of the following errors cannot be controlled by the device. Therefore the device does not display an event message when one of these errors occurs. Error Possible cause Solution No display Battery voltage too low Pre-charge the battery External fuse for the battery has Replace the external fuse for the... -
Page 65: Self Test
15.3 Self test Function The self test checks the main device functions. Operation Attention Danger of destruction of the controller. Disconnect the loads and solar module from the controller before starting the self test. This is described in section 11. Disconnect the cables from the ‘AUX 1’... -
Page 66: Maintenance
Maintenance 16.1 Controller The controller is basically maintenance-free. Despite this, it is a good idea to regularly check that the cooling fins on the front and rear sides of the device are free of dust. Clean the device when neces- sary as described below. -
Page 67: Checking The Charging Functionality
2. If the battery voltage is very low then charge the battery with an external charger or replace the battery. 3. Execute self test (section 15.3). 4. Contact your dealer if the batter voltage is greater than 17/34 VDC (Tarom 4545) or 17/34/68 VDC (Tarom 4545–48). 16.1.4... -
Page 68: Disposal
Disposal The crossed-out wheelie bin symbol on the device indicates that this product must not be disposed of with the normal household waste. It must be taken to a collection point for waste electrical and electronic equipment. Information on the collection points can be obtained from the local waste dis- posal company, the next collection point for household waste or from the dealer where you bought your device. -
Page 69: Technical Data
Technical data 18.1 Controller Tarom 4545 Tarom 4545–48 Characterisation of the operating behaviour System voltage 12 / 24 VDC 12 / 24 / 48 VDC Own consumption 30 mA DC input side Max. input voltage 60 VDC 100 VDC 1) 2) - Page 70 Tarom 4545 Tarom 4545–48 Deep discharge protection SOC | voltage control (switch-off threshold) Factory setting 30 % | 11.7 VDC / 23.4 VDC 30 % | 46.8 VDC Setting range 10 % ... 70 % | 10 % ... 70 % | 9.6 VDC ...
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Page 71: Connection Cables
Technical data that varies from the above is given on a device label. Subject to change without notice. 18.2 Connection cables Recommended Max. recom- Max. cable length Insula- cross-section Component mended cur- tion rent Prescribed Recommended 20 A Solar module 30 m 10 m 85 °C... -
Page 72: Protocol Of The Open Uart Interface
18.3 Protocol of the open UART interface 18.3.1 Settings Signal / information Value Units Action UART bits per 4800 Baud Fixed value, not configurable. second UART data bits 8 bit data; fixed value, not configurable. UART parity None Fixed value, not configurable UART stop bits Fixed value, not configurable UART flow control... -
Page 73: Uart Data
18.3.2 UART Data Signal / information Value Units Action UART Data info 1 Version number UART Data info 2 Date YYYY/MM/DD UART Data info 3 Time hh:mm, 24 h format UART Data info 4 Battery voltage Battery voltage at terminals 'B+'/'B−' UART Data info 5 PV voltage 1 Voltage at module connection UART Data info 6... - Page 74 Signal / information Value Units Action UART Data info 17 Error Error state: 0-No errors, 1-Information, 2-Warning, 3-Error UART Data info 18 Charging mode Charge mode identifier, F, B, L, S UART Data info 19 Load output Switching state of load output 0-OFF, 1-ON UART Data info 20 AUX 1...
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Page 75: Recording Data On An Sd Card
18.4 Recording data on an SD card When data logging is activated, separate data logging files are created for each of the following StecaLink member devices: Tarom master device PA HS400 The data files are stored in a predefined directors structure. Year (YYYY) ↳... -
Page 76: Master Data File
Manufacturer Device name Serial number Steca Elektronik GmbH Tarom 4545 or 20-digit serial number Tarom 4545-48 Steca part number (6 digits) Coded month/year of production (2-digits) Steca RM number (8 digits) Consecutive number (4 digits) Content of data file Information/column... -
Page 77: Timechg Data File
Information/column Value StateLoad Switching state of load output Off; On StateAux1 Switching state of AUX 1 relay Off; On StateAux2 Switching state of AUX 2 relay Off; On Ah_in_24h_M[Ah] Ah meter of the energy introduced by the device 00:00 to 23:59. Ah_in_total_M[Ah] Ah meter of the energy introduced by the device since initial com- missioning. -
Page 78: Pa Hs400 Data File
Serial number address 40 – 49 HS400 18-digit serial number Steca part number (6 digits), Steca RM number (8 digits), consecutive number (4 digits). Contents of the CSV data file Information/column Value Date DD/MM/YYYY, according to the configured date format. -
Page 79: Guarantee Conditions
Guarantee conditions The Steca guarantee conditions are available in the Internet at: www.steca.com/pv-off-grid/warranties 19.1 Exclusion of liability The manufacturer can neither monitor the compliance with this manual nor the conditions and methods during the installation, operation, usage and maintenance of the controller. Improper installation of the system may result in damage to property and, as a result, to bodily injury. -
Page 80: Contact
Contact In the case of complaints or faults, please contact the local dealer from whom you purchased the product. They will help you with any issues you may have. Dealer: ................. Street & no................City: ..............................Phone: ................. Fax: ................. -
Page 81: Notes
Notes Controller Type ................Serial number ..............
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