MPPT M32-10 User Manual Download Page 9

WARNING: 

When  the  power  of  PV  module  is  greater  than  the  rated 

charging power, and the maximum open-circuit voltage of PV array is more 
than100V (at the lowest environmental temperature), the controller may be 
damaged.

 

According to “Peak 

Sun Hours 

diagram”, if the power of PV array exceeds the rated 

charging  power  of  controller,  then  the  charging  time  as  per  the  rated  power  will  be 
prolonged, so that more energy can be obtained for charging the battery. However, in 
the practical application, the maximum power of PV array shall be not greater than 1.5 
x the rated charging power of controller. If the maximum power of PV array exceeds 
the rated charging power of controller too much, it will not only cause the waste of PV 
modules, but also increase the open-circuit voltage of PV array due to the influence of 
environmental  temperature,  which  may  make  the  probability  of  damage  to  the 
controller rise. Therefore, it is very important to configure the system reasonably. For 
the recommended maximum power of PV array for this controller, please refer to the 
table below: 

Model 

Rated Charge 

Current   

Rated Charge 

Power 

Max. PV Array 

Power   

Max. PV open 

circuit voltage 

M32-10 

10A 

130W/12V 
260W/24V 

195W/12V 
390W/24V 

92V

 

100V

 

M32-20 

20A 

260W/12V 
520W/24V 

390W/12V 
780W/24V 

M32-30 

30A 

390W/12V 
780W/24V 

580W/12V 

1170W/24V 

M32-40 

40A 

520W/12V 

1040W/24V 

780W/12V 

1560W/24V 

At 25

 environment temperature   

At minimum operating environment temperature 

2.3Wire Size 

The wiring and installation methods must conform to all national and local electrical 
code requirements. 

 

PV Wire Size 

Since  PV  array  output  varies  due  to  the  PV  module  size,  connection  method  or 
sunlight  angle,  the  minimum  wire  size  can  be  calculated  by  the  Isc

  of  PV  array. 

Please  refer  to  the  value  of  Isc  in  the  PV  module  specification.  When  PV  modules 
connect in series, the Isc is equal to a PV modules Isc. When PV modules connect in 
parallel, the Isc is equal to the sum of Isc of the PV modules. The Isc of the PV array 
must  not  exceed  the  maximum  PV  input  current  of  controllers.  Please  refer  to  the 
table as below: 

NOTE: All PV modules in a given array are assumed to be identical. 

Isc=short circuit current(amps) Voc=open circuit voltage. 

Model 

Max. PV input current 

Max. PV wire size

 

Summary of Contents for M32-10

Page 1: ...MPPT Solar Charge Controller User Manual Models M32 10 10A 12 24V M32 20 20A 12 24V M32 30 30A 12 24V M32 40 40A 12 24V...

Page 2: ...omponents inside the controller DO NOT disassemble or attempt to repair the controller Mount the controller indoors Avoid exposure the components and do not allow water to enter the controller Install...

Page 3: ...Display unit 10 4 Control Parameters Setting 15 4 1 Battery types 15 4 1 1 Support battery types 15 4 1 2 Battery Voltage Control Parameters 15 4 1 3Settings 17 4 2 Load working modes 18 4 2 1LCD set...

Page 4: ...onic protection for overcharge over discharge PV battery reverse polarity etc to ensure the solar system more reliable and more durable This controller can be widely used for RV household system field...

Page 5: ...s RTS port RS485 communication port PV Terminals Terminal protection cover Battery Terminals Display units Load Terminals Mounting Hole 5mm If the temperature sensor is short circuit or damaged the co...

Page 6: ...meters or clear the error information LCD PV display voltage current generated energy power Battery display voltage current temperature capacity Load display voltage current power consumed energy load...

Page 7: ...clamps to secure cables and prevent them from swaying in mobile applications The controller can work with lead acid battery and lithium battery within its control scope Battery connection may be wire...

Page 8: ...and prevent damages to the controller due to the connection of some over specification PV modules The actual operation of PV array is as follows Condition 1 Actual charging power of PV array Rated cha...

Page 9: ...this controller please refer to the table below Model Rated Charge Current Rated Charge Power Max PV Array Power Max PV open circuit voltage M32 10 10A 130W 12V 260W 24V 195W 12V 390W 24V 92V 100V M32...

Page 10: ...ire size is only for reference If there is a long distance between the PV array and the controller or between the controller and the battery larger wires can be used to reduce the voltage drop and imp...

Page 11: ...in a place with sufficient air flow through the radiators of the controller and a minimum clearance of 150 mm from the upper and lower edges of the controller to ensure natural thermal convection Ple...

Page 12: ...ly or any one of them will be grounded However according to the practical application all the negative terminals of PV array battery and load can also be ungrounded but the grounding terminal on its s...

Page 13: ...f the load and PV array Then the system will be operating in the preprogrammed mode CAUTION If the controller is not operating properly or the battery indicator on the controller shows an abnormality...

Page 14: ...used the system voltage can t be identified automatically 2 Button Press the button PV browsing interface Setting data Press the button and hold 5s Setting the LCD cycle time Press the button BATT br...

Page 15: ...Icon Information Day Not charging Not discharging Night Charging Discharging 1 PV parameters Display Voltage Current Power Generated Energy 2 Battery parameters Display Voltage Current Temperature Bat...

Page 16: ...ry type Step 4 Press the button to confirm the battery type CAUTION Please refer to chapter 4 1 for the battery control voltage setting when the battery type is User 2 Battery capacity Operation Step...

Page 17: ...4 Press the or button to set the temperature units Step 5 Press the button to confirm the parameters 4 LCD cycle time NOTE The LCD cycle default time is 2s the setting time range is 0 20s Operation St...

Page 18: ...ter 4 2 for the load working mode 4 Control Parameters Setting 4 1 Battery types 4 1 1 Support battery types 1 Lead acid battery Sealed default Gel Flooded User 2 Lithium battery LiFePO4 4S 12V 8S 24V...

Page 19: ...ge 10 6V 10 6V 10 6V 9 17V Equalize Duration 120 min 120 min 0 180 min Boost Duration 120 min 120 min 120 min 10 180 min The following rules must be observed when modifying the parameter values in Use...

Page 20: ...S 0 2V Over Voltage Disconnect Voltage Over Voltage Reconnect Voltage Charging Limit Voltage Equalize Charging Voltage Boost Charging Voltage Float Charging Voltage Boost Reconnect Charging Voltage Lo...

Page 21: ...Press the button and hold 5s for the load working mode interface Step3 Press the or button to set the load working modes Step4 Press the button to confirm the parameters 2 Load working mode 1 Timer 1...

Page 22: ...Manual mode Default load ON 2 n Disabled CAUTION Please set Light ON OFF Test mode and Manual mode via Timer1 Timer2 will be disabled and display 2 n 4 2 2 R485 communication setting 1 Load working m...

Page 23: ...3m length can be customized The remote temperature sensor connects to the port 4th on the controller NOTE The temperature sensor short circuited or damaged the controller will be charging or dischargi...

Page 24: ...cted and may continue to discharge the battery Battery Overheating The controller can detect the battery temperature through an external temperature sensor The controller stops working when its temper...

Page 25: ...connection is correct the controller is not working Please check the voltage of battery At least 8V voltage to activate the controller Battery over voltage XDS2 Charging indicator Green fast flashing...

Page 26: ...for best performance Make sure controller firmly installed in a clean and dry ambient Make sure no block on air flow around the controller Clear up any dirt and fragments on heat sink Check all the n...

Page 27: ...24 WARNING Risk of electric shock Make sure that all the power is turned off before above operations and then follow the corresponding inspections and operations...

Page 28: ...20A 30A 40A Rated discharge current 10A 20A 30A 40A Battery voltage range 8 32V Max PV open circuit voltage 100V 92V MPP voltage range Battery voltage 2V 72V Rated charge power 130W 12V 260W 12V 390W...

Page 29: ...ting environment temperature At 25 environment temperature When lithium battery is used the temperature compensate coefficient must be 0 and can t be changed Environmental Parameters Item M32 10 M32 2...

Page 30: ...230 165 63mm 255 185 67 8mm Mounting dimension 120 134mm 160 149mm 173 156mm 200 176mm Mounting hole size 5mm Terminal 12AWG 4mm2 6AWG 16mm2 6AWG 16mm2 6AWG 16mm2 Recommended cable 12AWG 4mm2 10AWG 6...

Page 31: ...onversion Efficiency Curves Illumination Intensity 1000W m 2 Temp 25 C Model M32 10 1 Solar Module MPP Voltage 17V 34V Nominal System Voltage 12V 2 Solar Module MPP Voltage 34V 51V 68V Nominal System...

Page 32: ...29 Model M32 20 1 Solar Module MPP Voltage 17V 34V Nominal System Voltage 12V 2 Solar Module MPP Voltage 34V 51V 68V Nominal System Voltage 24V...

Page 33: ...30 Model M32 30 1 Solar Module MPP Voltage 17V 34V Nominal System Voltage 12V 2 Solar Module MPP Voltage 34V 51V 68V Nominal System Voltage 24V...

Page 34: ...31 Model M32 40 1 Solar Module MPP Voltage 17V 34V Nominal System Voltage 12V 2 Solar Module MPP Voltage 34V 51V 68V Nominal System Voltage 24V...

Page 35: ...32...

Page 36: ...33 Annex IIMechanicalDimension Diagram M32 10 Unit mm...

Page 37: ...34 M32 20 Unit mm...

Page 38: ...35 M32 30 Unit mm...

Page 39: ...36 M32 40 Unit mm Any changes without prior notice Version number 3 1...

Page 40: ...PowerPlus Australia Group Pty Ltd ATF Caravan Ren Unit Trust Unit 5 17 25 Kinder Street Campbellfield VIC 3061 http www powerplusgroup net info powerplusgroup net...

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