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Samlexpower MSK-10A Owner's Manual

Solar charge controller
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Solar
Charge
Controller
MSK-10A
Owner's
Please read this
manual BEFORE
Manual
using your
Charge
Controller

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Summary of Contents for Samlexpower MSK-10A

  • Page 1 Solar Owner's Please read this manual BEFORE Manual Charge using your Controller Charge Controller MSK-10A...

  • Page 2: Table Of Contents

    OWNER'S MANUAL | Index SECTION 1 Safety Instructions ..............3 SECTION 2 General Information, Features & Layout ....... 5 SECTION 3 Installation ................7 SECTION 4 Operation ................ 13 SECTION 5 Protections & Troubleshooting ........... 22 SECTION 6 Specifications ..............26 SECTION 7 Warranty ................

  • Page 3: Safety Instructions

    SECTION 1 | Safety Instructions IMPORTANT SAFETY INSTRUCTIONS PLEASE READ THE FOLLOWING SAFETY INSTRUCTIONS BEFORE USING THE CHARGE CONTROLLER. FAILURE TO ABIDE BY THE RECOMMENDATIONS MAY CAUSE PERSONAL INJURY / DAMAGE TO THE CONTROLLER. The following safety symbols will be used in this manual to highlight safety and information: WARNING! Indicates possibility of physical harm to the user in case of non-compliance.
  • Page 4 SECTION 1 | Safety Instructions 12. Batteries contain very corrosive diluted Sulphuric Acid as electrolyte. Precautions should be taken to prevent contact with skin, eyes or clothing. If battery acid makes contact with skin or clothing, flush immediately with water. See a doctor immediately.

  • Page 5: General Information, Features & Layout

    & Layout 2.1 GENERAL INFORMATION MSK-10A is a 10A rated, Series Type of PWM (Pulse Width Modulation) Charge Control- ler. It is based on an advanced design using a microcontroller for digital accuracy and fully automatic operation. It can be used for 12V or 24V battery systems.
  • Page 6 PV Input Terminal (–) (NOT USED) * If the temperature sensor is short-circuited or damaged, the controller will charge or discharge at the default temperature setting of 25°C. Fig 2.1: Layout of Charge Controller MSK-10A 6 | SAMLEX AMERICA INC.

  • Page 7: Installation

    SECTION 3 | Installation 3.1 SAFETY WARNING! CAUTION! PLEASE READ ALL THE SAFETY INSTRUCTIONS GIVEN IN SECTION 1 BEFORE INSTALLING AND OPERATING THE CONTROLLER. FAILURE TO ABIDE BY THE RECOMMENDATIONS MAY CAUSE PERSONAL INJURY / DAMAGE TO THE KIT. DO NOT USE THE UNIT IN WET ENVIRONMENT •...
  • Page 8 – – 138.6 NOTE: All dimensions are in mm Fig 3.1: Dimensional Drawing of Charge Controller MSK-10A 3.3 MOUNTING Refer to Fig 3.2 When mounting the controller, ensure free air through the ventilation slots at the bottom of the unit. There should be at least 6 inches (150 mm) of clearance above and below the controller to allow for cooling.
  • Page 9 Place the controller on the surface and align the mounting holes with the drilled holes in Step 3.3.4. Secure the controller in place using 2, #8 self tapping screws. 3.4 CONNECTIONS Solar Panel MSK-10A or Array NOTE: Maximum current on the Load Terminals should be limited to 10A...
  • Page 10 SECTION 3 | Installation 3.4.1 Step1: Battery Connection WARNING! RISK OF EXPLOSION OR FIRE! NEVER SHORT CIRCUIT BATTERY POSITIVE (+) AND NEGATIVE (-). MISE EN GARDE! RISQUE D'EXPLOSION OU D'INCENDIE! NE COURT-CIRCUITEZ JAMAIS LA BATTERIE POSITIF (+) ET NÉGATIF (-). Refer to Fig 3.2 Before the battery is connected, make sure that battery voltage is greater than 8V so as to start up the controller.
  • Page 11 SECTION 3 | Installation MISE EN GARDE! LA SORTIE DE COURANT SUR LES BORNES DE CHARGE EST LIMITÉE À UN MAXIMUM DE 10A. SI DES CHARGES PLUS LOURDES DE PLUS DE 10 A COMME L'ONDULEUR, ETC. DOIVENT ÊTRE ALIMENTÉES, CONNECTEZ-LES DIRECTEMENT À...
  • Page 12 SECTION 3 | Installation MISE EN GARDE! RISQUE DE CHOC ELECTRIQUE! FAITES PREUVE DE PRUDENCE LORS DE LA MANIPULATION DE L'ÉNERGIE SOLAIRE CONNEXIONS. LA SORTIE HAUTE TENSION DES PANNEAUX PHOTOVOLTAÏQUES PEUT PROVOQUER DES CHOCS OU DES BLESSURES. COUVREZ LES PANNEAUX PHOTOVOLTAÏQUES DU SOLEIL AVANT D'INSTALLER LE CÂBLAGE SOLAIRE.

  • Page 13: Operation

    4.1 PRINCIPLE OF OPERATION OF SOLAR CHARGING WITH SERIES TYPE PULSE WIDTH MODULATION (PWM) CONTROL The design and operation of MSK-10A is based on Series Type PWM (Pulse Width Modulation) control at PWM frequency of 25 Hz. 4.2 PWM EXPLANATION The output of the PV Panel(s)/ Array is connected to the battery in series with a Mosfet Switch inside the controller.
  • Page 14 In MSK-10A, frequency of 25 Hz is used for optimum charging performance. 4.3.2 Benefits of pulsing nature of charging current during PWM During PWM voltage regulated stages of Absorption, Float and Equalization, Duty Cycle is lower and the charging current is in the form of pulses.
  • Page 15 SECTION 4 | Operation 4.4.1 Normal Charging Profile Please refer to Fig 4.1A This charging cycle is carried out for normal day to day charging. Charging is sequential: Stage 1: Bulk Stage (Maximum available Current = Instantaneous Short Circuit Current “Isc” Current) Stage 2: Absorption Stage (Constant Voltage) Stage 3:...
  • Page 16 SECTION 4 | Operation 4.4.1.3 Stage 3 - Float stage Please refer to Fig 4.1A The controller enters this stage from the previous Absorption Stage after the battery voltage is held at the selected Absorption Transition Voltage Set Point “Va” for continu- ous or cumulative period of 2 Hours.
  • Page 17 SECTION 4 | Operation MISE EN GARDE! RISQUE D'EXPLOSION ET DE DOMMAGES MATÉRIELS! • L'égalisation de la batterie inondée peut produire des gaz explosifs. Assurer une bonne ventilation du boîtier de batterie • L'égalisation peut augmenter la tension de la batterie au niveau qui peut endommager les charges CC sensibles.
  • Page 18 SECTION 4 | Operation 4.5.2 Electrolyte Stratification Electrolyte stratification can occur in all types of flooded batteries. As the battery is discharged and charged, concentration of Sulphuric Acid becomes higher at the bottom of the cell and lower at the top of the cell. The low acid concentration reduces capacity at the top of the plates, and the high acid concentration accelerates corrosion at the bottom of the plates and shortens battery life.
  • Page 19 SECTION 4 | Operation This is a constant voltage stage and the Mosfet Switch operates under PWM control by feeding pulsing Short Circuit Current “Isc” with constantly reducing Duty Cycle (< 100% to > 0%) / average current to keep the battery voltage constant at the Equalization Transition Voltage Set Point “Ve”.
  • Page 20 SECTION 4 | Operation 4.7 LED INDICATIONS LED indications for operational status are shown at Table 4.1. TABLE 4.1 LED INDICATIONS FOR OPERATIONAL STATUS Item No. Description Color LED Lighting Operational Status (Fig 2.1) Pattern of LED Low solar irradiance due to poor sunlight. PV Status LED PV panel/array voltage is more than 8V but Green...
  • Page 21 SECTION 4 | Operation 4.8 LOAD ON/OFF CONTROL When the controller is powered ON, press the Load On/Off Button (4, Fig 2.1) to toggle the load ON and OFF. When load is ON, Load Status LED (3, Fig 2.1) will turn ON - RED. 4.9 BATTERY TEMPERATURE SENSING &...

  • Page 22: Protections & Troubleshooting

    SECTION 5 | Protections & Troubleshooting 5.1 PROTECTIONS 5.1.1 PV Input Over Current If the PV array output current exceeds 10A rating of the controller, the charging current will be limited to the rated current of 10A. 5.1.2 PV Array Short Circuit If PV array short circuit occurs, remove the short circuit to resume normal operation automatically.
  • Page 23 SECTION 5 | Protections & Troubleshooting the load will be disconnected immediately and the Red Load Status LED will continue to fast blink @ 4Hz for 20 sec. 5. After 20 sec., the load will be reconnected. If the short circuit condition continues, the load will be disconnected immediately and the Red Load Status LED will continue to fast blink @ 4Hz for 25 sec.
  • Page 24 SECTION 5 | Protections & Troubleshooting 5.2 TROUBLESHOOTING Troubleshooting Guide is shown at Table 5.1. Please refer to LED indications at Section 4.7, Table 4.1 for supplementary information. TABLE 5.1 TROUBLESHOOTING GUIDE Symptom Possible Cause Remarks / Remedy PV Status LED (1, Fig •...
  • Page 25 SECTION 5 | Protections & Troubleshooting TABLE 5.1 TROUBLESHOOTING GUIDE Symptom Possible Cause Remarks / Remedy Load Status LED (3, Fig Load has been disconnected Remove the cause of overload: 2.1) is slow blinking due to overload in the load - Reset by manually pressing the Load On/ Red @ 1Hz.

  • Page 26: Specifications

    SECTION 6 | Specifications 6.1 GENERAL PARAMETER SPECIFICATIONS CHARGE CONTROLLER Type of Charging Control Series Type, PWM control, PWM Frequency: 25Hz Battery Type Optimized for Sealed Lead Acid, AGM 12V / 24V Nominal; Auto Sensing Battery System Voltage (<18V sensed as 12V / >18V sensed as 24V) Working Voltage Range of Charge Controller 8V to 32V Rated Battery Charging Current...
  • Page 27 SECTION 6 | Specifications PARAMETER SPECIFICATIONS INPUT – PV PANEL(S) / ARRAY Maximum Open Circuit Voltage Maximum Short Circuit Current INPUT / OUTPUT CONNECTIONS Moving Cage Type for 4mm / Up to AWG #12 wire Type of connectors size PROTECTIONS PV over current;...

  • Page 28: Warranty

    Warranty 3 YEAR LIMITED WARRANTY MSK-10A Solar Charge Controller manufactured by Samlex America, Inc. (the “Warran- tor“) are warranted to be free from defects in workmanship and materials under normal use and service. The warranty period is 3 years for the United States and Canada, and is in effect from the date of purchase by the user (the “Purchaser“).
  • Page 29 Notes SAMLEX AMERICA INC. | 29...
  • Page 30 Notes 30 | SAMLEX AMERICA INC.
  • Page 31 Notes SAMLEX AMERICA INC. | 31...
  • Page 32 Information Toll Free Numbers Ph: 800 561 5885 Fax: 888 814 5210 Local Numbers Ph: 604 525 3836 Fax: 604 525 5221 Website www.samlexamerica.com USA Shipping Warehouse Kent WA Canadian Shipping Warehouse Delta BC Email purchase orders to orders@samlexamerica.com 11023-MSK-10A-0120...