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Solar 

Charge 

Controller

MSK-20A

Please read this 
manual BEFORE  
using your 
Charge  
Controller

Owner's 

Manual

Summary of Contents for MSK-20A

Page 1: ...Solar Charge Controller MSK 20A Please read this manual BEFORE using your Charge Controller Owner s Manual ...

Page 2: ...OTHER DOCUMENTATION 2 ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDI RECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USERS RISK Samlex America reserves the right to revise this document and to periodically make changes to the content hereof without ...

Page 3: ...er Do not disassemble or attempt to repair it 4 Install external fuses breakers as required 5 Disconnect the Solar Panel s and fuse breakers near to battery before installing or adjust ing the controller 6 Confirm that power connections are tightened to avoid excessive heating from loose con nection 7 The charge controller has been factory preset to optimally charge 12V 24V Sealed Lead Acid Batter...

Page 4: ...e Ground connection from the battery first Make sure that all the accessories are off so that you do not cause a spark 18 Solar Panel s generate electrical power when exposed to sunlight Place a dark cover over the panels when handling panels that have bare un insulated output wires Accidental shorting of panel terminals or wiring connected to the panels can result in spark causing personal injury...

Page 5: ...V battery 3 stages of charging for 100 return of capacity and for longer battery life Normal Bulk Stage gAbsorption Stage gFloat Stage Factory preset for charging Sealed Lead Acid Batteries AGM Absorbed Glass Mat User friendly LED display for monitoring of operation and self diagnostics for troubleshooting Built in or optional Remote Battery Temperature Sensor Model MSK TS for battery temperature ...

Page 6: ...short circuit faults 7B Load Terminal 5A Solar Panel Input Terminal 8 See NOTE 1 Connector for optional Remote Battery Temperature Sensor Model MSK TS 5B Solar Panel Input Terminal 9 RS 485 Communication Port NOT USED NOTES 1 If the Remote Battery Temperature Sensor is short circuited or damaged the control ler will charge or discharge at the default temperature setting of 25 C 2 All terminal can ...

Page 7: ...as been factory preset to optimally charge 12 24V Sealed AGM Lead Acid Batteries MISE EN GARDE ATTENTION VEUILLEZ LIRE TOUTES LES INSTRUCTIONS DE SÉCURITÉ DONNÉES DANS LA SECTION 1 AVANT D INSTALLER ET D UTILISER LE CONTRÔLEUR NON RESPECT DE LA LES RECOMMANDATIONS PEUVENT PROVOQUER DES BLESSURES OU ENDOMMAGER LE KIT N UTILISEZ PAS L APPAREIL DANS UN ENVIRONNEMENT HUMIDE Veuillez noter que cet appa...

Page 8: ...ation 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 If mounted in an enclosure forced air ventilation is highly recommended WARNING RISK OF EXPLOSION NEVER INSTALL THE CONTROLLER IN A SEALED ENCLO SURE WITH FLOODED BATTERIES DO NOT INSTALL IN A CONFINED AREA WHERE BATTERY GASSES CAN ACCUMULATE MISE EN GARDE...

Page 9: ...4 Drill Holes Remove the controller and drill 4 holes in the marked locations Use drill size 29 for 8 self tap ping screws 3 3 5 Step 5 Secure Controller 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 4 8 self tapping screws 3 4 CONNECTIONS 12V 24V Battery 12V 24VDC Load 20A e g Light Light Switch S1 rated ...

Page 10: ... terminal Do not insert the fuse at this time 3 4 2 Step 2 Load Connection through Load Terminals Limited to 20A Refer to Fig 3 2 The Load Terminals of the controller can be connected to such electrical devices as lights and other devices with load current of up to 20A Controller provides power to the load s through the battery When load s are fed from the Load Terminals the controller will provid...

Page 11: ...load s to controller Load Terminals as shown in Fig 3 2 3 4 3 Step 3 Solar Panel Array Connection WARNING RISK OF ELECTRIC SHOCK EXERCISE CAUTION WHEN HANDLING SOLAR CONNECTIONS HIGH VOLTAGE OUTPUT FROM THE SOLAR PANEL S ARRAY MAY CAUSE SHOCK OR INJURY COVER THE SOLAR PANEL S ARRAY FROM THE SUN BEFORE INSTALLING SOLAR WIRING MISE EN GARDE RISQUE DE CHOC ELECTRIQUE FAITES PREUVE DE PRUDENCE LORS DE...

Page 12: ...ecommended that the optional Remote Battery Temperature Sensor Model No MSK TS is used This Temperature Sensor comes with 3M 10ft cable with a cylindrical Temperature Sensor Head for battery end and 2 pole Female Connector for the controller end Install this sensor as follows Attach the Cylindrical Sensor Head half way down the vertical side of the warmest part of the battery in the battery bank s...

Page 13: ...in a controlled manner in every cycle and will output variable average current within a range of 0A to the full Short Circuit Current Isc Thus through PWM control the Mosfet Switch inside the controller converts constant Short Circuit Current Isc of the Solar Panel s to controlled average charging current at its output by varying the Duty Cycle The average value of the charging current is equal to...

Page 14: ...ternal pressure of the battery Consequently charging process is smoother and more capacity is returned to the battery Further pulsing current provides more time to react which reduces the gassing volume and improves the absorption rate of charging current 4 4 CHARGING PROFILES The controller has been set for the following 2 Charging Profiles a 3 Stage Normal Profile See Fig 4 1 Section 4 4 1 for d...

Page 15: ...d hence it is necessary to exit this stage as soon as 100 capacity is restored If this over voltage condition is allowed to continue after 100 recharging the battery will be damaged due to effects of overcharging like overheating loss of water Flooded Batteries corrosion of the Positive plates and excessive build up of pressure resulting in acid spillage due to opening of pressure activated relief...

Page 16: ...S Location of LED Fig 2 1 Function of LED Color of LED LED Lighting Pattern Operational Status 1 Solar Panel Status LED Green On Steady Unit is on but not charging due to insufficient Solar Panel Power Green Slow Blinking 1Hz Unit is charging Green Fast Flashing 4Hz Solar Panel has been connected in reverse polarity See Section 5 1 3 Green OFF i Solar Panel Voltage is 5V due to Night time or Solar...

Page 17: ...d Auto reset at 75 C See Section 5 1 12 1 2 3 All 3 LED Indicators are blinking Solar Panel Status LED 1 Fig 2 1 Blinks Green Battery Status LED 2 Fig 2 1 Blinks Red Load Status LED 3 Fig 2 1 Blinks Red System voltage error Battery voltage does not match the controller voltage Check battery voltage is 12V 24V Press Load On Off Button 4 Fig 2 1 to clear the malfunction See Section 5 1 14 System Vol...

Page 18: ...ad Status LED 3 Fig 2 1 will be steady 5 If overload 21 0A continues for 3 sec the load will be disconnected for 15 sec and the Load Status LED 3 Fig 2 1 will slow blink 15 times 1Hz 6 Load will be reconnected Load Status LED 3 Fig 2 1 will be steady 7 If overload 21 0A continues for 3 sec the load will be disconnected for 20 sec and the Load Status LED 3 Fig 2 1 will blink 20 times 1Hz 8 Load wil...

Page 19: ...sation Coefficient 18m V C for 12V battery and 36mV C for 24V bat tery When the battery temperature falls below 25 C the above Absorption Stage Float Stage Voltages will be compensated raised automatically Unlimited automatic raising of the values of these voltages due to battery temperature falling below 25 C is controlled by parameter called Charging Limit Voltage which limits the rise of these ...

Page 20: ...nected The following 3 LEDs will blink Solar Panel Status LED 1 Fig 2 1 will blink Green Battery Status LED 2 Fig 2 1 will blink Orange Load Status LED 3 Fig 2 1 will blink Red Input and Output connections will be restored at 75 C 5 1 13 Damaged Temperature Sensor If the optional external battery temperature sensor Model MSK TS Section 3 4 4 is short circuit ed or damaged the controller will charg...

Page 21: ...inking Green 4Hz Solar panel polarity is reversed No charging Correct polarity of solar panel connection Battery Status LED 2 Fig 2 1 is Green fast flashing 4Hz and there is no output at the Load Terminals Battery Over Voltage Disconnect Protection has been activated due to high voltage of 16V 32V at the battery output termi nals Solar Panel s and Load have been disconnected Auto reset at 15V 30V ...

Page 22: ...r 8 to 10 sec Read Section 5 1 4 for details Load Status LED 3 Fig 2 1 is fast blinking Red 4Hz Load has been disconnected Load has been disconnected due to short circuit Read Section 5 1 5 for details Remove the cause of short circuit Reset by manually pressing Load On Off Button 4 Fig 2 1 for 8 to 10 sec Read Section 5 1 5 for details Solar Panel Status LED 1 Fig 2 1 is blinking Green Battery St...

Page 23: ... Stage gFloat Stage Bulk Stage Current Equal to Instantaneous Short Circuit Current Isc of the Solar Panel s Maximum 20A Absorption Stage Voltage 14 4V 28 8V Absorption Stage Duration 2 Hrs Float Stage Voltage 13 8V 27 6V Automatic Reset to Absorption Stage 13 2V 26 4V Charging Limit Voltage 15 0V Auto Reset 14 5V 30 0V Auto Reset 29 0V Discharging Limit Voltage 10 6V 21 2V Over Voltage Disconnect...

Page 24: ...OMPLIANCE Compliance marking CE Marked Safety Standards IEC 62109 1 2010 IEC 62109 2 2011 Electro Magnetic Compatibility EMC Standards Emissions EN61000 6 3 Immunity EN61000 6 1 RoHS Standard RoHS Directive 2011 65 EU ENVIRONMENTAL Operating Temperature 35 C to 50 C Storage Temperature 35 C to 80 C Humidity 95 Non Condensing Ingress Protection IP Rating of Enclosure IP 30 NOT waterproof MECHANICAL...

Page 25: ...er having a reasonable number of opportunities to do so Warranty service shall be performed only by the Warrantor Any attempt to remedy the defect by anyone other than the Warrantor shall render this warranty void There shall be no warranty for defects or damages caused by faulty installation or hook up abuse or misuse of the equipment including exposure to excessive heat salt or fresh water spray...

Page 26: ...26 SAMLEX AMERICA INC Notes ...

Page 27: ...SAMLEX AMERICA INC 27 Notes ...

Page 28: ...mbers Ph 1 800 561 5885 Fax 1 888 814 5210 Local Numbers Ph 604 525 3836 Fax 604 525 5221 Website www samlexamerica com USA Shipping Warehouses Kent WA Plymouth MI Canadian Shipping Warehouse Richmond BC Email purchase orders to orders samlexamerica com ...

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