Tracer-4215RN
Contents
1. TF dd dd NN ON M 3 Solar Module MPP Voltage 68V Nominal System Voltage 12V 94 5 93 5 92 5 91 5 90 5 89 5 88 5 Solar Module MPP Voltage 34V Nominal System Voltage 24V 98 0 oo IA IT N EAS OEE EE en eRe ae a0 MEA 0 1 200 ola el ao a 990W 1170W 3 Solar Module MPP Voltage 68V Nominal System Voltage 24V 100 0 95 0 90 0 85 0 80 0 75 0 gt gt gt gt gt gt gt gt gt 222222 3822325222232 2222822 DARA DRAAHARAA AAR HAR a NN MM Tracer Dimensions mm 47 ee aja Version number V6 0 AAA SS SS ee BEIJING EPSOLAR TECHNOLOGY CO LTD Tel 010 82894112 82894962 Fax 010 82894882 E mail info epsolarpv com Website www epsolarpv com2. Compensation of equalize boost float and low voltage disconnect voltage Environmental Parameters Environmental Parameter Ambient temperature range 35 Cto 55 C Storage temperature range 35 C to 80 C Humidity range 10 90 NC Enclosure 0 Altitude lt 3000 m Mechanical Parameters Mechanical Parameter Dimension 242 x 169x 91 mm Mounting holes 180 x 160 mm Mounting hole size DS Terminal 25mm Weight 2 05kg Final interpretation right of the manual belongs to our company Any changes without prior notice 24 PV Power Conversion Efficiency Curve Illumination Intensity 1000W m Temperature 25 C 1 Solar Module Voltage 17V Nominal System Voltage 12V 97 0 96 5 96 0 95 5 95 0 94 5 94 0 93 5 93 0 92 5 gt gt gt gt gt gt gt gt gt gt 2 gt gt gt gt gt gt 228275752500000550000500ml M M 0 TF ON Mm 2 Solar Module Voltage 34V Nominal System Voltage 12V 96 5 96 0 95 5 s0 LETT DN as A TTT 94 0 93 5 93 0 92 5 92 0 gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt OO 0 0 0 00 O 0 0 0 M in di M
3. 7 hours before sunrise 7 Load will be on for 8 hours before sunrise 8 Load will be on for 9 hours before sunrise 9 Load will be on for 10 hours before sunrise 10 Load will be on for 11 hours before sunrise 11 Load will be on for 12 hours before sunrise 12 Load will be on for 13hours before sunrise 13 Load will be on for 14 hours before sunrise 14 Load will be on for 15 hours before sunrise 15 Notes If timer 1 is Dusk to Dawn 0 Test mode 16 or ON OFF mode 17 the timer 2 will be disabled n e Battery Type Setting Press Setting Button and hold on 5 seconds when the LED is on battery type setting mode The led will be flashing Continue to press and the number will repeat from 1 to 3 and stop pressing until the desired number appears according to the following setting table Battery type setting Table 4 8 Battery type Digital tube display Sealed lead acid battery 1 Gel battery 2 Flooded battery 3 18 5 Protections Troubleshooting and Maintenance 5 1 Protection Array Short Circuit If PV array short circuit occurs clear it to resume normal operation Overvoltage If PV Overvoltage occurs the array will remain disconnected until the voltage falls safely below the maximum rating Overcurrent If PV Overcurrent occurs the array will be disconnected automatically Load Overload If the load current exceeds the maximum load current rating the con
4. Connect batteries 9 Load Terminals Connect loads 10 RJ45 Communication Interface Communicate with remote meter 5 2 2 Optional Accessories Remote Meter Model 5 The digital remote meter displays system operating information error indications and self diagnostics read out Information is displayed on a backlit LCD display The large numerical display and icons are easy to read and large buttons make navigating the meter menus easy The meter can be flush mounted in a wall or surface mounted using the mounting frame included The 5 is supplied with 2m of cable and a mounting frame The MT 5 connects to the RJ45 port on the Tracer 3 Installation Instructions 3 1 General Installation Notes eRead through the entire installation section first before beginning installation eBe very careful when working with batteries Wear eye protection Have fresh water available to wash and clean any contact with battery acid Uses insulated tools and avoid placing metal objects near the batteries eExplosive battery gasses may be present during charging Be certain there is sufficient ventilation to release the gasses eAvoid direct sunlight and do not install in locations where water can enter the controller eLoose power connections and or corroded wires may result in resistive connections that melt wire insulation burn surrounding materials or even cause fire Ensure tight connections and use cable cla
5. damaging to sensitive DC loads Ensure that all load allowable input voltages are greater than the equalizing charging set point voltage NOTE Equipment damage Over charging and excessive gas precipitation may damage the battery plates and activate material shedding on them Too high an equalizing charge or for too long may cause damage Please carefully review the specific requirements of the battery used in the system Certain types of batteries benefit from periodic equalizing charge which can stir the electrolyte balance battery voltage and complete chemical reaction Equalizing charge increases the battery voltage higher than the standard complement voltage which gasifies the battery electrolyte If it detects that the battery is being over discharged the solar controller will automatically turn the battery to equalization charging stage and the equalization charging will be 120mins Equalizing charge and boost charge are not carried out constantly in a full charge process to avoid too much gas precipitation or overheating of battery 4 3 LED Indications Charging Indicator Battery Indicator LED Digital Tube Work Mode Mode amp Tim Figure 4 3 LED Indicators 12 Charging Indicator The green LED indicator will light whenever sunlight is available for battery charging the green charging LED will stay on in normal charging The charging LED indicator flashes when battery ove
6. not operate at the Vmp of the solar modules s energy is wasted that could otherwise be used to charge the battery and power system loads The greater the difference between battery voltage and the Vmp of the module the more energy is wasted Tracer MPPT technology will always operate at the Vmp resulting in less wasted energy compared to traditional controllers Conditions That Limits the Effectiveness of MPPT The Vmp of a solar module decreases as the temperature of the module increases In very hot weather the Vmp may be close or even less than battery voltage In this situation there will be very little or no MPPT gain compared to traditional controllers However systems with modules of higher nominal voltage than the battery bank will always have an array Vmp greater than battery voltage Additionally the savings in wiring due to reduced solar current make MPPT worthwhile even in hot climates 4 2 Battery Charging Information Four Charging Stage The Tracer has a 4 stage battery charging algorithm for rapid efficient and safe battery charging 10 Figure 4 2 Tracer MPPT charging algorithm Bulk Charge In this stage the battery voltage has not yet reached boost voltage and 100 of available solar power is used to recharge the battery Boost Charge When the battery has recharged to the Boost voltage setpoint constant voltage regulation is used to prevent heating and excessive battery gassing The Boost s
7. 5 5 Protections Troubleshooting and Maintenance 19 5 1 Protection 2228022 19 5 2 Troubleshooting 20 5 3 Maintenance 21 AA EEE sites 22 7 Technical Specifications 23 1 Important Safety Information Save These Instructions This manual contains important safety installation and operating instructions for Tracer The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions please take care when meeting these symbols WARNING Indicates a potentially dangerous condition Use extreme caution when performing this task CAUTION Indicates a critical procedure for safe and proper operation of the controller NOTE Indicates a procedure or function that is important for the IS safe and proper operation of the controller General Safety Information Read all of the instructions and cautions in the manual before beginning installation There are no user serviceable parts inside the Tracer Do not disassemble or attempt to repair the controller Disconnect the solar module and fuse breakers near to battery before installing or adjusting the Tracer Install external fuses breakers as required Do not allow water to enter the controller Confirm that power connections are tightened to avoid excessive heating from loose connection 2 General Informatio
8. Refer to the instructions provided for detailed installation procedures Step 5 Confirm Wiring Double check the wiring in stepl through 4 Confirm correct polarity at each connection Verify that all six power terminals are tightened Step 6 Confirm Power up When battery power is applied and the Tracer powers up the battery led indicator will be green If the Tracer does not power up or battery status LEDs error exists refer to Section 5 Troubleshooting 4 Operation 4 1 MPPT Technology The Tracer utilizes Maximum Power Point Tracking technology to extract maximum power from the solar module s The tracking algorithm is fully automatic and does not require user adjustment Tracer technology will track the array maximum power point voltage Vmp as it varies with weather conditions ensuring that maximum power is harvested from the array through the course of the day Current Boost In many cases Tracer MPPT technology will boost the solar charge current For example a system may have 8 Amps of solar current flowing into the Tracer and 10 Amps of charge current flowing out to the battery The Tracer does not create current Rest assured that the power into the Tracer is the same as the power out of the Tracer Since power is the product of voltage and current VoltsxAmps the following is true 1 Power Into the Tracer Power Out of the Tracer 2 Volts InxAmps In Volts OutxAmps Out Assuming 100 efficiency Actuall
9. Utility model patent NO E PSOLAR 201120064092 1 Tracer 4215RN Maximum Power Point Tracking Solar Charge Controller INSTRUCTION MANUAL Thank you very much for selecting our product This manual offers important information and suggestions with respect to installation use and troubleshooting etc Please read this manual carefully before using the product and pay attention to the safety recommendations in it Tracer 4215RN Maximum Power Point Tracking Solar Charge Controller TRACER MEP IPT Solar Charge Controller System Voltage 12 24VDC Rated Charge Current 45A Rated Discharge Current 20A Max PV Input Voltage 150VDC Max PV Input Power 12V System 585W 24V System 1170W Array voltage should never exceed maximum PV input voltage Refer to the solar module documentation to determine the highest expected array Voc open circuit voltage as defined by the lowest expected ambient temperature for the system location Contents 1 Important Safety Information 1 2 General Information 2 2 1 Overview essen a 2 2 2 Optional Accessories eenen eener 4 3 Installation Instructions eenen eneen eeneenenvenvenn 5 3 1 General Installation Notes eneen 5 32 Monin An id tds 5 SES Lens ten es 6 AOpen 9 4 1 MPPT Technology 9 4 2 Battery Charging Information 10 4 3 LED Indications 12 4 4 Setting Operation 1
10. e on all night 0 Load will be on for 1 hour after ten minutes delay since sunset 1 Load will be on for 2 hours after ten minutes delay since sunset 2 Load will be on for 3 hours after ten minutes delay since sunset 3 Load will be on for 4 hours after ten minutes delay since sunset 4 Load will be on for 5 hours after ten minutes delay since sunset 5 Load will be on for 6 hours after minutes delay since sunset 6 Load will be on for 7 hours after ten minutes delay since sunset 7 Load will be on for 8 hours after ten minutes delay since sunset 8 Load will be on for 9 hours after ten minutes delay since sunset 9 Load will be on for 10 hours after ten minutes delay since sunset 0 Load will be on for 11 hours after ten minutes delay since sunset 11 Load will be on for 12 hours after ten minutes delay since sunset 2 Load will be on for 13hours after ten minutes delay since sunset 3 Load will be on for 14 hours after ten minutes delay since sunset 4 Load will be on for 15 hours after ten minutes delay since sunset 5 Test mode 6 ON OFF mode 7 17 Load work mode Table 4 7 Timer2 LED Digital No Disable n Load will be on for 1 hour before sunrise 1 Load will be on for 2 hours before sunrise 2 Load will be on for 3 hours before sunrise 3 Load will be on for 4 hours before sunrise 4 Load will be on for 5 hours before sunrise 5 Load will be on for 6 hours before sunrise 6 Load will be on for
11. h Disconnect the solar flashing voltage disconnect module voltage OVD Battery LED Battery under Load output is normal charging indicator are orange voltage LED indicator will return to green automatically when fully charged Battery LED Battery The controller cut off the output indicator RED color over discharged automatically LED indicator will return to green automatically when fully charged LED digital tube Overvoltage Check whether the PV displays P parameters match with the controller s It will be reconnected automatically until the voltage falls safely below the maximum rating LED digital tube PV Overcurrent Check whether the PV parameters match with the controller s please according to the controller parameters for photovoltaic parameters selection Battery Indicator red flashing Over load or short circuit Overload Please reduce the load and press the button once the controller will resume to work after 3s Short circuit when the first short circuit occurs the controller will automatically resume to work after 10s when a second short circuit occurs press the button the controller will resume to work after 3s 20 5 3 Maintenance The following inspections and maintenance tasks are recommended at least two times per year for best controller performance e Check that the controller is securely mounted in a clean and dry environment e Check t
12. hat the air flow and ventilation around the controller is not blocked Clear all dirt or fragments on the heat sink e Check all the naked wires to make sure insulation is not damaged for serious solarization frictional wear dryness insects or rats etc Maintain or replace the wires if necessary Tighten all the terminals Inspect for loose broken or burnt wire connections e Check and confirm that LED digital tube is consistent with required Pay attention to any troubleshooting or error indication Take necessary corrective action e Confirm that all the system components are ground connected tightly and correctly e Confirm that all the terminals have no corrosion insulation damaged high temperature or burnt discolored sign tighten terminal screws to the suggested torque e Inspect for dirt insects and corrosion and clear up e Check and confirm that lightning arrester is in good condition Replace a new in time to avoid damaging of the controller and even other equipments Warning Risk of electric shock Make sure all the power is turned off before above operations and then follow the corresponding inspections and operations 21 6 Warranty The Tracer charge controller is warranted to be free from defects for a period of TWO 2 years from the date of shipment to the original end user We will at its option repair or replace any such defective products Claim procedure Before requesting wa
13. ital tube OFF remote meter MT 5 disconnected Battery Parameters Tem 25 C Control Parameter Battery charging setting Gel Sealed Flooded High Volt Disconnect 16 x2 24V 16 x2 24V 16 x2 24V Charging limit voltage 15 5 x2 24V 15 5 x2 24V 15 5V x2 24V Over Voltage Reconnect 15 x2 24V 15V x2 24V 15V x2 24V Equalization voltage 14 6V x2 24V 14 8V x2 24V Boost voltage 14 2 x2 24V 14 4V x2 24V 14 6V x2 24V Float voltage 13 8 x2 24V 13 8 x2 24V 13 8 x2 24V Boost return voltage 13 2 x2 24V 13 2 x2 24V 13 2 x2 24V Low voltage reconnect 12 6 x2 24V 12 6 x2 24V 12 6 x2 24V Under voltage recover 12 2 x2 24V 12 2 x2 24V 12 2 x2 24V Under voltage warning 12 x2 24V 12V x2 24V 12V x2 24V Low voltage disconnect 11 1 x2 24V 11 1V x2 24V 11 1V x2 24V Discharging limits voltage 10 8 x2 24V 10 8V x2 24V 10 8V x2 24V Equalize duration 2hours 2hours Boost duration 2hours 2hours 2hours 23 Threshold Voltage Description Parameter NTTV Night Time Threshold Voltage SV x2 24V DTTV Day Time Threshold Voltage 6V x2 24V Temp compensation Description Parameter Temperature Compensation Coefficient TEMPCO 30mV C 12V 25 C ref
14. lace the controller on the surface and align the mounting holes with the drilled holes in step 4 Secure the controller in place using the mounting screws 3 3 Wiring gt gt NOTE A recommended connection order has been provided for maximum safety during installation NOTE The Tracer is a negative ground controller Any negative connection of solar module battery or load can be earth grounded as required Grounding is recommended CAUTION Don t connect the loads with surge power exceeding the ratings of the controller CAUTION For mobile applications be sure to secure all wiring Use cable clamps to prevent cables from swaying when the vehicle is in motion Unsecured cables create loose and resistive connections which may lead to excessive heating and or fire Step 1 Battery Wiring WARNING Risk of explosion or fire Never short circuit battery positive and negative or cables Battery Figure 3 1 Battery wiring Before connecting the battery measure the battery voltage It must be over 9V to power the controller For 24V the voltage must be greater than 18V to properly detect a 24V battery The 12 24V battery detection is automatic and the check is only performed at start up Wire an in line fuse holder no more than 150mm from the battery positive terminal Do not insert a fuse at this time Confirm the connection correct and then turn on the power Step 2 Load Wiring The Tracer load
15. mps to secure cables and prevent them from swaying in mobile applications eUse with Gel Sealed or Flooded batteries only eBattery connection may be wired to one battery or a bank of batteries The following instructions refer to a singular battery but it is implied that the battery connection can be made to either one battery or a group of batteries in a battery bank Select the system cables according to 3A mm current density 3 2 Mounting NOTE When mounting the Tracer ensure free air through the controller heat ES sink fins There should be at least 150mm of clearance above and below the controller to allow for cooling If mounted in an enclosure ventilation is highly recommended WARNING Risk of explosion Never install the Tracer in a sealed enclose with flooded batteries Do not install in a confined area where battery gas can accumulate Step 1 Choose Mounting Location Locate the Tracer on a vertical surface protected from direct sun high temperature and water Step 2 Check for Clearance Place the Tracer in the location where it will be mounted Verify that there is sufficient room to run wires and that there is sufficient room above and below the controller for air flow Step 3 Mark Holes Use a pencil or pen to mark the four 4 mounting hole locations on the mounting surface Step 4 Drill Holes Remove the controller and drill four sizeable holes in the marked locations Step 5 Secure Controller P
16. n 2 1 Overview Thank you for selecting the Tracer controller which represents advanced technology of our company The features are listed below 12V 24V auto recognition Advanced maximum power point tracking technology to optimize using the solar system Peak conversion efficiency of 97 high Tracking efficiency of 99 Very fast sweeping of the entire I V curve several seconds tracking speed Widely used automatic recognize day night Timer function with 1 15 hours option for street light Unique dual timer function enhance the flexibility of street light system Sealed Gel and Flooded battery option Adopting temperature compensation and correcting the charging and discharging parameters automatically improving the battery lifetime Electronic protection over charging over discharging overload short circuit Reverse protection any combination of solar module and battery without causing damage to any component Excellent thermal design and nature air cooling RJ45 interface with remote meter MT 5 convenient to check operating parameters of controllers The Tracer series controller is for off grid solar system and control the charging and discharging of the battery especially suitable for the street light system The controller features a smart tracking algorithm inside that maximizes the energy from the solar PV module s and charge the battery At the same time the low voltage disconnect functi
17. nutes delay for several hours which users set on the timer The timer setting operation is referred to as Load Work Mode Setting 3 Test Mode It is used to test the system and the same as Dusk to Dawn But there is no 10 minutes delay when controller recognizes the starting voltage When below the starting voltage the controller will turn on the load if higher it will turn off load The test mode makes it easy to check the system installation 4 Manual Mode This mode is to turn on off the load by Setting Switch 15 Load Work Mode Setting Timerl Setting indicator Work mode LED digital tube Mode amp Timer 1 PP Timer 2 Timer2 Batt Type Setting indicator y Battery type 2 0 Setting Indicator Setting button Solar Charge Controller Figure 4 4 Instruction figure on setting Press the setting button once and setting indicators will be changed once among timer 1 timer2 and battery type When timer 1 setting indicator is on press the setting button for more than 5 seconds till the LED digital tube flashes Then press the setting button till the desired number appears according to the following table The setting is finished when the digital tube stop flashing Timer 2 setting is the same as timer 1 when the setting indicator is on timer2 16 Load work mode Table 4 6 LED Timerl Digital No Disable Dusk to Dawn Load will b
18. on LVD will prevent the battery from over discharging The Tracer controller charging process has been optimized for long battery life and improved system performance The comprehensive self diagnostics and electronic protection functions can prevent damage from installation mistakes or system faults In addition the Tracer controller has a RJ45 interface to allow communication with a meter for remote monitoring Although the Tracer controller is very simple to configure and use please take your time to read the operator s manual and become familiar with the controller This will help you make full use of all the functions and improve your solar PV system The features of Tracer controller 43 MP PT solar Charge Controller Figure 2 1 Tracer Characteristics 1 Charging Status LED Indicator An LED indicator that shows charging status and overvoltage of battery 2 Battery Status LED Indicator An LED indicator that shows battery status or system errors 3 Temperature Sensor Measure ambient temperature and make temperature compensation for charging and discharging 4 Setting Indicators Corresponding indicator will be on when set timer1 timer2 and battery type 5 LED Digital Display Display the load work mode and status 6 Setting Button in manual mode used for load ON OFF Set load work mode and select battery type 7 Solar Module Terminals Connect solar modules 8 Battery Terminals
19. output can connect DC electronic devices of which rated voltage is same as battery s Tracer will provide battery voltage to the loads See Section 4 4 Setting Operation for more details about the load control CE RM Figure 3 2 Load wiring Connect load positive and negative to the Tracer load output as shown in figure 3 2 The load terminals may exist voltage connect carefully to avoid short circuit An in line fuse holder should be wired in series in the load positive or negative wire as shown Do not insert a fuse at this time Confirm the connection correct and then turn on the power If wiring the load connection to a load distribution panel each load circuit should be fused separately The total load draw should not exceed the 20A load rating Step 3 Solar Module Wiring WARNING Risk of electric shock Exercise caution when handling solar wiring The solar module s high voltage output can cause severe shock or injury Cover the solar module s from the sun before installing solar wiring The Tracer can accept 12V 24V nominal off grid solar module arrays Grid tie solar module s may be used if the open circuit voltage does not exceed the maximum solar input rating The solar module s nominal voltage must be equal to or greater than the nominal battery voltage Solar Module Figure3 3 Solar Module wiring Step 4 Accessories option Install Remote Meter purchased separately if required
20. r voltage Please refer to Chapter 5 for troubleshooting Charging LED indicator Table4 1 Color Indication Operating State Green On Solid Charging Green Flashing Battery over voltage e Battery Indicator GREEN ON when battery voltage in normal range GREEN FLASHING when battery full ORANGE ON when battery under voltage RED ON when battery over discharged Please refer to Chapter 5 for troubleshooting Battery LED indicator Table 4 2 Color Indication Operating State Green On solid Normal battery Green Flashing Full battery Orange On solid Under voltage battery Red On solid Over discharged battery Overvoltage Display Tf the solar input open circuit voltage Voc exceeds the maximum rating the array will remain disconnected until the Voc falls safely below the maximum rating PV Overvoltage LED Display Table 4 3 Color Indication Operating State Red LED digital tube displays P PV Overvoltage 13 Overcurrent Display If the solar input current exceeds the maximum rating the array will be disconnected automatically PV Overcurrent LED Display Table 4 4 Color Indication Operating State Red LED digital tube displays C PV Overcurrent e Load indicator When the load amp is 1 25times of rated current for 60 seconds or the load amp is 1 5 times of rated current for 5 seconds overload or load sho
21. rranty service check the Operation Manual to be certain that there is a problem with the controller Return the defective product to us with shipping charges prepaid if problem cannot be solved Provide proof of date and place of purchase To obtain rapid service under this warranty the returned products must include the model serial number and detailed reason for the failure the module type and size type of batteries and system loads This information is critical to a rapid disposition of your warranty claim This warranty does not apply under the following conditions 1 Damage by accident negligence abuse or improper use 2 PV or load current exceeding the ratings of product 3 Unauthorized product modification or attempted repair 4 Damaged occurring during shipment 5 Damage results from acts of nature such as lightning weather extremes 6 Irreclaimable mechanical damage 22 7 Technical Specifications Electrical Parameters Description Parameter Nominal System Voltage 12VDC 24VDC Auto work Rated Charge Current 45 Rated Discharge Current 20A Maximum Battery Voltage 32V Max Solar Input Voltage 150VDC 12 585W Max PV input power 24V 1170W Self consumption lt 10mA 24V Charge Circuit Voltage Drop lt 0 26V Discharge Circuit Voltage Drop lt 0 15V Communication TTL232 8 RJ45 Charging amp discharging circuit closed LED dig
22. rt circuit the Battery Indicator RED FLASHING Please refer to section 5 for troubleshooting Load LED indicator Table 4 5 Color Indication Load status Red battery indicator red flashing Overload or Short circuit 14 4 4 Setting Operation Dual Timer Function Light L Timerl Timer2 ON Midnight 71 Number Number Light OFF of hours of hours Sunset Sunrise The default night length is 10 hours The controller can learn the night length referring to the previous night so as to adapt to the different seasons However it will take some time to learn it Notes when the OFF time set at timer 2 is later than local IS sunrise time the controller will turn off the load output at the sunrise time which shows light control first Load Control Settings 1 Dusk to Dawn Light ON Light OFF When solar module voltage goes below the point of NTTV Night Time Threshold Voltage at sunset the solar controller will recognize the starting voltage and turn on the load after 10 minutes delay When solar module voltage goes above point of DTTV Day Time Threshold Voltage the solar controller will recognize the starting voltage and turn off the load after 10 minutes delay 2 Light ON Timer 1 15h on When solar module voltage goes below the point of NTTV Night Time Threshold Voltage at sunset the solar controller will recognize the starting voltage and turn on the load after 10 mi
23. tage remains 120 minutes and then goes to Float Charge Every time when the controller is powered on if it detects neither over discharged nor overvoltage the charging will enter into boost charging stage Float Charge After the Boost voltage stage Tracer will reduce the battery voltage to Float voltage setpoint When the battery is fully recharged there will be no more chemical reactions and all the charge current transmits into heat and gas at this time Then the Tracer reduces the voltage to the floating stage charging with a smaller voltage and current It will reduce the temperature of battery and prevent the gassing also charging the battery slightly at the same time The purpose of Float stage is to offset the power consumption caused by self consumption and small loads in the whole system while maintaining full battery storage capacity In Float stage loads can continue to draw power from the battery In the event that the system load s exceed the solar charge current the controller will no longer be able to maintain the battery at the Float setpoint Should the battery voltage remains below the boost reconnect charging voltage the controller will exit Float stage and return to Bulk charging 11 Equalize WARNING Risk of explosion Equalizing flooded battery can produce explosive gases so well ventilation of battery box is necessary NOTE Equipment damage Equalization may increase battery voltage to the level
24. troller will disconnect the load Overloading must be cleared up through reapply power or pressing the setting button Load Short Circuit Fully protected against load wiring short circuit After one automatic load reconnect attempt the fault must be cleared by reapply power or pressing the setting button Reverse Polarity Fully protection against PV reverse polarity no damage to the controller will result Correct the miswire to resume normal operation Battery Reverse Polarity Fully protection against battery reverse polarity no damage to the controller will result Correct the miswire to resume normal operation Damaged Local Temperature Sensor Tf the temperature sensor short circuited or damaged the controller will be charging or discharging at the default temperature 25 C to prevent the battery damaged from overcharging or over discharged High Voltage Transients PV is protected against high voltage transients In lightning prone areas additional external suppression is recommended 19 5 2 Troubleshooting Trouble Shooting Table 5 1 Faults Possible reasons Troubleshooting Charging LED Check that PV and battery wire indicator off during daytime when sunshine falls on PV modules properly array disconnection connections are correct and tight displays C Green charging Battery voltage Check if battery voltage over LED indicator higher than over hig
25. y the losses in wiring and conversion exist If the solar module s Vmp is greater than the battery voltage it follows that the battery current must be proportionally greater than the solar input current so that input and output power are balanced The greater the difference between the maximum power voltage and battery voltage the greater the current boost Current boost can be substantial in systems where the solar array is of a higher nominal voltage than the battery An Advantage Over Traditional Controllers Traditional controllers connect the solar module directly to the battery when recharging This requires that the solar module operate in a voltage range that is below the modules Vmp In a 12V system for example the battery voltage may range from 11 15Vde but the module s Vmp is typically around 16 or 17V Figure 4 1 shows a typical current VS voltage output curve for a nominal 12V off grid module Current VS Voltage in 12V system Output power in 12V system Tracer Maximum Typical Battery Maximum Power Voltage Range Power cid 7 Point Pome Controller Operating Range CURRENT POWER 10 1517 VOLTAGE 10 1517 VOLTAGE Figure 4 1 Nominal 12V Solar Module I V curve and output power graph The array Vmp is the voltage where the product of current and voltage AmpsxVolts is greatest which falls on the knee of the solar module curve as shown in Figure4 1 Because Traditional controllers do
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