background image

PV array indicator:

BAT indicator:

LOAD indicator:

Load state

Load turned off

Load overloaded/ short-circuited

Load functioning normally

ERROR indicator:

Indicator state

Off

Steady on

Abnormality indication

System operating normally

System malfunctioning

3.2 Key Operations

Main menu

Real-time 

monitoring

Load mode

Parameters 

setting

Statistic data

Historical data of 

the current day

Device 

information

Bluetooth connection state

(This menu is available only to the display units with the optional bluetooth function)

Refer to "Usage of Navigation Keys" for operations including entering into and exiting each 
of the above menus, related parameters setting, etc.

3.3 LCD Display and Operations

3.3.1 Menu Block Diagram

9

10

Return to previous menu 
(exit without saving)

Enter into sub-menu; set/ saveTurn on/
 off loads (in manual mode)

Page down; decrease the parameter 
value in setting

Page up; increase the parameter value
 in setting

485

communication

Summary of Contents for ML4860N15

Page 1: ...er User Manual Model Battery voltage Max solar panel voltage Max input power Charging current Discharging current ML4860N15 12V 24V 36V 48V 150V 25 C 145V 25 C 800W 12V 1600W 24V 2400W 36V 3200W 48V 60A 20A Specification version number V1 02 If there is any change without notice Code 103757 ...

Page 2: ...cause damage Tips means advice or instruction for the operator Table of Contents 1 Product Introduction 1 1 Product Overview 1 2 Product Features 1 3 Exterior and Interfaces 1 4 Introduction to Maximum Power Point Tracking Technology 1 5 Charging Stages Introduction 2 Product Installation 2 1 Installation Precautions 2 2 Wiring Specifications 2 3 Installation and Wiring 3 Product Operation and Dis...

Page 3: ...istorical data storage function is available and data can be stored for up to a year The controller is equipped with an LCD screen with which users can not only check device operating data and statuses but also modify controller parameters The controller supports standard Modebus protocol fulfilling the communication needs of various occasions All communications are electrically isolated so users ...

Page 4: ...f the charging stages MPPT can t be used alone but has to be used together with boost charging floating charging equalizing charging etc to complete charging the battery A complete charging process includes fast charging sustaining charging and floating charging The charging curve is as shown below a Fast charging At the fast charging stage as the battery voltage has not reached the set value of f...

Page 5: ...nstalling the battery For open lead acid batteries wear a pair of goggles during installation and in case of contact with battery acid flush with water immediately In order to prevent the battery from being short circuited no metal objects shall be placed near the battery Acid gas may be generated during battery charging thus make sure the ambient environment is well ventilated Keep the battery aw...

Page 6: ...ys be careful in operation First connect the battery then the solar panel and finally the load When wiring follow the order of first and then Power on After connecting all power wires solidly and reliably check again whether wiring is correct and if the positive and negative poles are reversely connected After confirming that no faults exist first close the fuse or breaker of the battery then see ...

Page 7: ...e current day Device information Bluetooth connection state This menu is available only to the display units with the optional bluetooth function Refer to Usage of Navigation Keys for operations including entering into and exiting each of the above menus related parameters setting etc 3 3 LCD Display and Operations 3 3 1 Menu Block Diagram 9 10 Return to previous menu exit without saving Enter int...

Page 8: ...des BAT LDV over discharge BAT OVD over voltage BAT UVW under voltage warning L SHTCRT load short circuit L OVRCRT load over current internal over temperature battery over temperature solar panel overpower solar panel over voltage solar panel working over voltage solar panel reverse connection Page 2nd level menus Menu level Definitions of main menu icons Icon or value State Description Remarks St...

Page 9: ... BstChgVol 9 0 17 0V 3 Floating charging voltage FltChgVol 9 0 17 0V Boost charging recovery voltage BstChgRev Over discharge recovery voltage LowVolRev Under voltage warning level UndVolWrn 4 Over discharge voltage LowVolDsc Over discharge time delay LVD Delay 0 60s 1 Equalizing charging time Equ Time 0 300 MIN 1 Boost charging time Bst Time 0 300 MIN 1 5 Equalizing charging interval Equ Inv 0 30...

Page 10: ... the load mode setting 3 Press and hold in any menu but not the setting mode if the current load mode is manual mode pressing and holding the key will switch on off the load if the current load mode is not manual mode pressing and holding the key will cause the display to skip to the load mode setting interface and a reminder will pop up telling the user in this mode pressing and holding the key w...

Page 11: ...ction problem gets solved normal operation will resume Load overpower protection When the load power exceeds the rated value the load will cut off output after a time delay Load short circuit protection When the load is short circuited the controller can implement protection in a quick and timely manner and will try to switch on the load again after a time delay This protection can be carried out ...

Page 12: ...2V default 35 C to 45 C IP32 3 6kg RS232 RS485 3000m 285 205 93mm 5 2 Battery Type Default Parameters When selecting User the battery type is to be self customized and in this case the default system voltage parameters are consistent with those of the sealed lead acid battery When modifying battery charging and discharging parameters the following rule must be followed Over voltage cut off voltage...

Page 13: ...sion Efficiency 6 3 48V System Conversion Efficiency MPPT 24V conversion efficiency 24V battery 80 82 84 86 88 90 92 94 96 98 100 40 80 160 480 800 1200 1600 Output power W 40Vmp 60Vmp 80Vmp 90Vmp 110Vmp 110 Vmp 90 Vmp 80 Vmp 60 Vmp 40 Vmp MPPT 48V conversion efficiency 48V battery 85 87 89 91 93 95 97 99 160 320 640 1000 1250 1500 2000 2500 3000 Output power W 60Vmp 70Vmp 80Vmp 90Vmp 110Vmp 60 Vm...

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