Epever iTracer-ND Series User Manual
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Epever iTracer-ND Series User Manual

Mppt solar charge controller
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MPPT Solar Charge Controller
User Manual
Model：IT6415ND

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  • Page 1 MPPT Solar Charge Controller User Manual Model：IT6415ND...
  • Page 2 Important Safety Instructions Please reserve this manual for future review. This manual contains all instructions for safety, installation, and operation for the Maximum Power Point Tracking (MPPT) controller in iTracer6415ND ("the controller" is referred to in this manual). General Safety Information ...

  • Page 3: Table Of Contents

    Contents 1 General Information 1.1 Overview 1.2 Characteristics 1.3 Accessories Instructions 1.4 Maximum Power Point Tracking Technology 1.5 Battery Charging Stage 2 Installation 2.1 General Installation Notes 2.2 PV Array Requirements 2.3 Mounting 2.4 Wiring 2.5 Power ON 3 LED Indication 4 LCD Display &...
  • Page 4 Annex I Conversion Efficiency Curves Annex II Dimensions...

  • Page 5: General Information

    1 General Information 1.1 Overview Appreciate you for choosing our MPPT solar charge controller, iTracer6415ND. Based on the multiphase synchronous rectification technology (MSRT), common negative design, dual-core processor architecture, and advanced MPPT control algorithm, the products own the features of high response speed, high reliability, high industrial standards, etc.
  • Page 6 overload.  Wide MPP operating voltage range.  High-speed and high-powered dual-core processor architecture, improving system response speed, optimizing system performance.  Die-cast aluminum case for heat-dissipating, ensuring excellent heat dissipation characteristics.  12/24/36/48VDC auto-identifying system voltage or user-defined working voltage.

  • Page 7: Characteristics

    1.2 Characteristics Figure 1-1 Controller Characteristics...

  • Page 8: Accessories Instructions

    Item Name Item Name ② Heat Sink RTS Port ③ RBVS Port Battery LED indicator Solar Positive Terminal(+) ④ Charging LED indicator Solar Negative Terminal(-) Fault LED indicator Load Negative Terminal(-) Buttons Battery Negative Terminal(-) RS-232 port Battery Positive Terminal(+) ①...

  • Page 9: Maximum Power Point Tracking Technology

    3. CD （PC Software） Solar Station PC software is used to monitor each controller on the network 1.4 Maximum Power Point Tracking Technology Due to the nonlinear characteristics of the solar array, there is a maximum energy output point (Max Power Point) on its curve. Traditional controllers, adopting the switch charging technology and PWM charging technology, can't charge the battery at the maximum power point.

  • Page 10: Battery Charging Stage

    Figure 1-2 Maximum Power Point Curve The panel may appear Multi-MPP as shading from cloud, tree, or snow in actual application. However, there is only one real Maximum Power Point. As the Figure 1-3 show: Figure 1-3 Mutil-MPP Curve If the program works improperly after appearing Multi-MPP, the system will not work on the real max.
  • Page 11 Figure 1-4 Battery changing stage Curve A) Bulk Charging In this stage, the battery voltage has not yet reached constant voltage (Equalize or Boost Voltage). The controller operates in constant current mode, delivering its maximum current to the batteries (MPPT Charging). B) Constant Charging When the battery voltage reaches the constant voltage setpoint, the controller will start to operate in constant charging mode.
  • Page 12  Equipment damage!  Equalization may increase battery voltage high enough to damage sensitive DC loads. Verify that all load allowable input voltages are 11% greater than the equalizing charging set point voltage.  Equipment damage! CAUTION  Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them.
  • Page 13 battery's gassing and charging simultaneously. The purpose of the 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 the Float charging stage, loads can obtain almost all power from solar panels.

  • Page 14: Installation

    2 Installation 2.1 General Installation Notes  Before installation, please read through the instructions to familiarize yourself with the installation steps.  Be very careful when installing the batteries, especially flooded lead-acid batteries. Please wear eye protection, and have fresh water available to wash and clean any contact with battery acid.

  • Page 15: Pv Array Requirements

    have its solar module(s).  Select the system cables according to 5A/mm or less current density following Article 690 of the National Electrical Code, NFPA 70. 2.2 PV Array Requirements Serial connection (string) of PV modules As the core component of the PV system, the controller could be suitable for various types of PV modules and maximize converting solar energy into electrical energy.

  • Page 16: Wiring

    mounted in an enclosure, ensure good ventilation condition of the box. Figure 2-1 Installation Diagram  150mm of clearance is required around the controller for proper airflow.  Secure the controller in place using proper mounting screws. 2.4 Wiring ※Please remove the terminal protective cover before wiring.
  • Page 17  The following connection order is recommended for optimal safety.  Do not entangle all wiring together. Communication cable and power wires should be as far as possible to avoid interfering with the communication signal transmission.  The iTracer-ND controller is a negative ground controller. Any negative PV, load, or battery connection can be earth CAUTION grounded as required.
  • Page 18 battery voltage sensor will enable the controller to detect the battery voltage more exactly and avoid voltage deviation. The battery voltage sensor connection is not required to operate the controller, but it is recommended for the best performance. The voltage sensor wires should be cut into the required length. The wire can range from 0.25 to 1.0 mm (24 to 18 AWG).
  • Page 19 the PV modules are connected in parallel, the I equals the sum of the PV module's I . The I of the PV array must not exceed the maximum PV input current. Please refer to the table below: Model Max. PV input current Max.
  • Page 20 Figure 2-2 Connection Diagram  Battery Connection Connecting a fuse in series through battery positive (+) in the circuit and the battery circuit fuse must be 1.25 to 2 times the rated current. Disconnect it before installation. Connect battery positive (+) and negative (-) to battery terminals on the controller in figure 1-1.

  • Page 21: Power On

    The controller will be damaged when the PV array reverses polarity, and the actual operating power of the PV array is 1.5 WARNING times greater than the rated charge power! Load short circuit protection, and the reversed polarity connection will trigger automatically. CAUTION 2.5 Power ON ...

  • Page 22: Led Indication

    3 LED Indication LED Indication Color Indicator Status Green flash Charging Green No charging Green on solid Normal Green Slowly Flashing Full Green fast flash High volt disconnect Orange on solid Under voltage warning on solid Low voltage disconnect flash Battery over temperature Normal Current abnormal...

  • Page 23: Lcd Display & Operation

    4 LCD Display & Operation Note: The display screen can be viewed clearly when the angle between the end-users horizontal sight and the display screen is within 90° . If the angle exceeds 90° , the information on the display screen cannot be viewed clearly.
  • Page 24  Main Menu There are nine interfaces for monitoring, as shown in the below picture. Press the button to move the inverse cursor among nine menus.  Monitor There are 11 interfaces for monitoring, as shown below: Load State Load Volt. Batt Temp 12.4V 21º...
  • Page 25 Work Log Query 1/79 PV Cur <1>Work Log From 2012-01-01 2012-01-01 00:00 0.0A <2>Alarm Log To 2012-06-08 Batt Volt 13.3V Discharging Cur Total：79 Batt Cur 0.0A 0.0A Alarm Log Query No. 1/10 <1>Work Log From 2012-01-01 Batt OVD/Begin <2>Alarm Log To 2012-06-08 2012-01-04 14:20 Total：10...
  • Page 26 NOTE: The log after the current time will be erased when the clock has been adjusted.  Device Parameter There are two interfaces for device parameters, as shown below: Before setting the parameters, you should input the user password (see above).
  • Page 27 for 24 hours when the battery power is enough, and the controller works normally. The load will be turned off after the controller is powered on and stable. The load needs to be turned on manually. The load will keep the ON state for 24 hours when the battery power is enough, and the controller works normally.
  • Page 28 The controller calculated the total length of the night Night time by self-learning. The time should be more than 3 hours Time Load control mode can be set to time control in this interface. Parameters in the table below: Parameter Detail Time Control 1 Set the begin and end time 1 of the load output...
  • Page 29 Batt Type Over Volt. Disc. Over Volt. Rect Temp Coefficient SEALED 16.0V 15.0V -3mV/℃/2V Rated Volt Batt AH Charge Limit Equalize Charge AUTO 200AH 15.0V 14.6V Boost Charge 14.4V Float Charge 13.8V Equalize Time Low Volt Disc Under Volt Rect Boost Rect Volt 120 min 11.1V...
  • Page 30 Control Voltage parameters Sealed Flooded User Over voltage disconnect 9~17V voltage Charge voltage limit voltage 9~17V Over voltage reconnect 9~17V voltage —— Equalize charging voltage 14.6V 14.8V 9~17V Boost charging voltage 14.4V 14.2V 14.6V 9~17V Float charging voltage 13.8V 13.8V 13.8V 9~17V Boost voltage reconnect...
  • Page 31 c. Low Voltage Reconnect > Low Voltage Disconnect ≥ Charging Limit Voltage; d. Under Voltage Recover > Under Voltage Warning ≥ Charging Limit Voltage; e. Boost Return Voltage > Low Voltage Reconnect;  Password The factory default password is " 000000".

  • Page 32: Protections, Troubleshooting & Maintenance

    5 Protections, Troubleshooting & Maintenance 5.1 Protections  PV Over Current The controller will limit charge power in rated charge power. An over-sized PV array will not operate at the maximum power point  PV Short Circuit If the PV array is short-circuited, the controller will stop charging and clear it to resume normal operation.

  • Page 33: Troubleshooting

    below 50 º C.  Over Load The load is switched off when 1.05 times rated current overload happens. The controller will automatically attempt to reconnect the load five times. Suppose overload protection still exists after the controller's 5 times attempts. In that case, the user must reduce the load appliance, press the button, repower the controller, wait for one night-day cycle (night time>3 hours), or press the button.
  • Page 34 solar modules properly Battery voltage Battery LED indicator Check battery larger than over green fast blink and voltage is too high, and voltage disconnect LCD displaying 'OVD' disconnect solar modules. voltage (OVD) Disconnect solar modules Fault indicator Charging current in and restart the controller;...

  • Page 35: Maintenance

    5.3 Maintenance The following inspections and maintenance tasks are recommended at least twice yearly for best controller performance.  Make sure the controller is firmly installed in a clean and dry ambient.  Make sure no block on airflow around the controller. Clear up any dirt and fragments on the radiator.

  • Page 36: Pc Software

    6 PC Software The controller can be connected to a common PC monitoring software by supporting a USB communication cable developed by the EPEVER company. Monitoring software can remote single or more controllers to modify the parameters and others in the PV system management (username: administrator, password: 111111 as default).
  • Page 37 Figure6-2 Real-Time Monitoring Figure6-3 Control Parameter...

  • Page 38: Specifications

    7 Specifications Item IT6415ND Electrical Parameters Nominal System Voltage 12/24/36/48VDC Nominal Battery Current 8V～68V Battery Input Voltage Range 150V (at minimum operating environment temperature) Max. PV open circuit voltage 138V (at 25℃ environment temperature) ① Battery voltage+2V～108V MPP Voltage Range 800W/12V;1600W/24V Maximum Input Power 2400W/36V;3200W/48V...

  • Page 39: Disclaimer

    8 Disclaimer  Damage from improper use or use in an unsuitable environment.  PV or load current, voltage, or power exceeds the rated value of the controller.  Disassembly or attempted repair the controller without permission.  The controller is damaged due to natural elements such as lighting. ...
  • Page 40 Annex I Conversion Efficiency Curves Illumination Intensity: 1000W/m Temperature: 25℃ Test model: IT6415ND Solar MPPT Voltage(36V,54V, 72V) / System Voltage(12V) 12V Conversion Efficiency Curves 97.00% 96.00% 95.00% 94.00% 93.00% 92.00% 91.00% 90.00% 89.00% 150 180 210 240 270 300 330 390 480 520 650 780 Charging Power W Solar MPPT Voltage(36V, 54V, 72V) / System Voltage(24V) 24V Conversion Efficiency Curves...
  • Page 41 Solar MPPT Voltage(54V, 72V, 90V) / System Voltage(36V) 36V Conversion Efficiency Curves 99.00% 98.00% 97.00% 96.00% 95.00% 94.00% 93.00% 92.00% 91.00% Charging Power W Solar MPPT Voltage(72V, 90V, 108V) / System Voltage(48V) 48V Conversion Efficiency Curves 99.00% 98.50% 98.00% 97.50% 97.00% 96.50% 108V...
  • Page 42 Annex II Dimensions IT6415ND Dimensions (Unit: mm) Any changes without prior notice! Version number: V4.2...
  • Page 44 HUIZHOU EPEVER TECHNOLOGY CO., LTD. Tel: +86-752-3889706 E-mail: info@epever.com Website: www.epever.com...

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