MPPT MS2420N User manual

MS2420N/30N/40N
MS4820N/30N/40N
MPPT Solar Charge Controller
Negative Grounded - APP Operation
User Manual
*We may modify these specifications without prior notice.

Icons Name Description
1. Warnings and Tools Icon Chart 2. Safety Tips
High Voltage
High Temperature
Environmental
Hazard
Wire Cutter
Multi-meter
Anti-static Glove
Electrical Tape
Screwdriver
High voltage device.
Installation should be
performed by an electrician.
This device will produce heat.
Mount device away from other
items.
Electronic Equipment.
Do not put in landfill.
A wire cutter is needed for
cutting and stripping prior
wires to connect.
A multi-meter is needed for
testing equipment and verifying
polarity of cables.
Anti-static gloves are
recommended to prevent
controller damage caused by
static electricity.
Electrical tape is recommended
to safely insulate spliced or bare
wires.
A common size screwdriver is
needed to attach wires to the
controller.
· This device is common negative designed, please wiring negative grounded if
grounding job is required.
· It is very important to review this manual thoroughly before attempting installation.
· Connecting wires to this device can generate sparks, please wear proper insulation
gear while installing this device.
· To avoid damage to the battery or controller, use proper fuses in wiring. Please do
not hesitate to contact the professions if you need help with fuse sizing.
· Solar panels can generate high voltages and currents, make sure your solar panels
are completely covered from sunlight during installation. It is recommended that
installation be performed by a qualified electrician.
· Please don’t keep the battery side open for long time, while the PV input keeps
plugging in, or it may cause a screen failure in this device.
· Always keep children away from this device.
· Be certain to use the correct gauge of wire, see below for a table of recommended
wire size for various current loads.
· Beware of any nearby electrical equipment that may interfere with installing this
device. And please don’t plug in any AC source to this DC-DC product, or it may cause
a fire or burn to the device.
01 02
Solar Input Current 5A 10A 20A 30A
Wire Cross Section Area (mm²) 1.5 2.5 5 8
Wire AWG 15 13 10 8
40A
10
7

3. Product Features
Thank you for choosing our products. This solar charge controller is a device for solar charge
regulation with the latest MPPT algorithm technology. This device is mainly used in small
and medium sized o-grid solar power systems.
These MPPT charge controllers have features as follows:
3. Built-in BT communication module for mobile phone APP operation
2. Great charge performance in high temperature environment
4. Inside filled in with silicon/polyurethane for better cooling and waterproof
1. Aluminum casing + tempered glass cover + screen touch operation
· Industrial grade design with full range of electronic protections, like reverse polarity
protection for solar panels and battery wiring.
· With built-in BT communication module in this controller, we provide APP PVChargePro
for mobile phone monitoring and operation. You can search“PVChargePro”and download
the APP at IOS APP Store and Google Play Store.
· Aluminum casing plus inside filled in complex silicon & polyurethane for a great cooling
and waterproof system, ensures better charge performance in environment of high
temperature and high humidity.
· Charging modes available for most common deep-cycle battery types in the market,
including AGM (sealed lead acid batteries/SLD), GEL, Flooded, and Lithium. For more
advanced settings, please operate in the mobile phone APP.
· Built-in buer, allows max 25% exceeding rated power input.
· By continuously checking solar panel power output changes, the controllers employ
multiple MPPT charge algorithms in combination to boost charging eciency in dierent
weather and temperature conditions.
· Tempered glass cover with back-lighted LCD display, touch screen operation for better
user experience. More advanced operations are available in mobile phone APP, or in the
external remote LCD display device (DS, optional accessory, not in the standard package list)
· Auto recognition of 12V/24V battery system voltage by MS2420N / MS2430N / MS2440N
model; auto recognition of 12V/24V/36V/48V battery system voltage by MS4820N /
MS4830N / MS4840N model. Lithium battery excluded from this feature.
· Supports recording of system running data including power generated and power
utilized for up to 300 days, compatible with monitoring App through IOS and Android.
4. Device Diagram
MS2420N/MS2430N/MS2440N
MS4820N/MS4830N/MS4840N
# Description # Description
1 6
2 7
3 8
4 9
5
LCD Display Screen
LED Indicator (PV, BAT, FAULT)
Touch Screen Button
Grounded Terminal
Installation Mounting Holes
External Temperature Sensor Port
RS485 Communication Port
Solar Input Terminals
Battery Terminals
Magnetic Cover
10
10
1
23
4
5
6789
03 04

5. Wiring Instructions
1 & 2: Remove the magnetic cover, and put it aside. 3. Unscrew the terminals completely,
before inserting any wiring leads.
4. Insert the bare wire side of the cable to the
terminal, and tighten the screws.
5. Check the wiring condition and put the magnetic cover back.
7. Device Diagram
6. Wiring sequence
1.Connect the positive battery wire followed by the negative battery wire.
3.Connect the external temperature sensor to its terminal shown above, and attach or stick
the temperature sensor to the battery side.
4.Download APP PVChargePro and turn on the BT function in the mobile phone. Testing
the APP function with the controller.
5.Connect the external device through RS485 communication port, like remote LCD
display, external BT communication module, parallel charge cable, and etc. (if applicable)
2.Connect the positive solar array output wire followed by the negative solar array output
wire (make sure your solar panels are fully covered to prevent electrical shock)
* Please don’t keep the battery terminal open for long, while PV input keeps on.
8. LED Light Signal Interpretation Chart
RS485 PIN
VDD
PIN-1
VDD
PIN-2 PIN-3 PIN-4 PIN-5 PIN-6
GND GND D- D+
O
Single Flash
Steady On
Single Flash
Fast Flash
Steady On
O
Steady On
Not In Charge
Solar Input Reverse Polarity
In Charge
Battery Reverse Polarity
Battery Over Voltage
Battery On & Normal
No Error or Alarm
System with Error or Alarm
LED Name
PV
BAT
FAULT
LED Display Signal Indication
05 06
① ⑥
①
⑥
Remote LCD Meter Bluetooth

9. LCD Display Interface
The battery voltage view will be displayed by default when the system is
started. Use the function key to cycle through dierent views.
( both Fahrenheit and Celsius temperature views are supportable, can be
shifted each other in the set mode) , the error code.
LCD screen display cycle: battery voltage, battery SOC, temperature
9.1Start the system & recognizes the voltage
System startup: auto recognize the battery voltage 12/24/36/48V
9.2 LCD Display Cycle
Battery Voltage
Battery SOC
Temperature
Error Code
10. LCD Display Interface
View Mode
Set Mode
Function Key System Mode Operation Operation Description
Short Press
Long Press
Short Press
Long Press
View Next Page
(according to the LCD
screen display cycle)
Enter SET mode
Increase Parameter Value
(Return to the minimum
value after reaching the
maximum value)
Exit SET Mode & Saving Date
07 08

11. Introduction to setting parameters
1.Setting Battery Mode
In [Battery Voltage], [Battery SOC], or [Error] page, long press the touch
key to enter the battery type setting.
* Note: If users need to choose USE or LI battery mode, they can only operate through APP.
1.1.Battery Type Setting (USE)
1.2.Battery Type Setting ( LI)
1.3 Other Battery Types Setting:
Battery Type Description Description
FLD
SEL
GEL
LI
USE
Flooded Lead-acid battery
Sealed Lead-acid
battery - SLD /AGM
Gel Battery
Lithium Battery
Advanced User Mode.
For Professions Only.
Parameters set on default, not adjustable.
Battery system voltage automatically
recognized.
Battery system voltage and parameter
settings are only allowed to set by APP
operation or in the remote display.
Battery system voltage and advanced
parameter settings are only allowed to set
by APP operation.
Part of the parameters could be set in the
remote display.
2.Temperature unit setting:
In the 【Temperature】page, long press the key to enter and set the
temperature unit.
℉ = ℃*1.8 + 32。
09 10

Code
E00
E02
E06
E07
E10
E13
E14
Error
No Error
Battery Over-voltage
Equipment
Overheating
Environment
Over-temperature
Solar Over-voltage
Solar Reverse
Polarity
Description
-
Battery voltage has
exceeded controller limit.
Controller exceeds
operating temperature
limit.
The device working
surrounding temperature
is too high, and the
controller would stop
charging anytime.
Solar array voltage
exceeds controller rated
input voltage.
Solar array input wires
connected with reverse
polarity.
Battery connection wires
connected with reverse
polarity.
Quick Troubleshoot
Check battery bank voltage for
compatibility with controller.
Ensure the controller is placed
in a well-ventilated cool, dry
place.
Try to lower the working
surrounding temperature.
Decrease the voltage of solar
panels connected to the
controller.
Disconnect and re-connect with
correct wire polarity.
Disconnect and re-connect with
correct wire polarity
Battery Reverse
Polarity
-
* Note: the missing error codes in the above chart indicates that this controller has no such
error or alarm condition.
12. Error Code Chart 13. Controller Specification
For example, the equalize charge voltage for a 12V FLD (Flooded) battery bank is 14.8V*1=14.8V.
The equalizing charge voltage for a 24V FLD (Flooded) battery bank is 14.8V*2=29.6V.
The variable “n” is adopted as a multiplying factor when calculating parameter voltages, the rule
for “n” is listed as: if battery system voltage is 12V, n=1; 24V, n=2; 36V, n=3; 48V, n=4.
300W/12V
600W/24V
450W/12V
900W/24V
600W/12V
1200W/24V
300W/12V
600W/24V
900W/36V
1200W/48V
450W/12V
900W/24V
1350W/36V
1800W/48V
600W/12V
1200W/24V
1800W/36V
2400W/48V
Max Solar Input
Power
FLD
14 8V n. *
14 6V n. *
SEL
14 6V n. *
14 4V n. *
GEL
( )default
–
14 2V n. *
USER
( )adjustable
Default
Default GEL:
LI
( )adjustable
–
Default 14 2V n: . *
13 8V n. *
13 2V n. *
- / /3mV 2V ºC
Default GEL:
Default GEL:
Default GEL:
–
–
–
–
Accessory List Package Status
Yes
Optional
Yes/Inbuit
Yes
Yes
Battery Voltages
Battery Types
Equalize Charge
Voltage
Boost Charge Voltage
Float Charge Voltage
Boost Charge
Recovery Voltage
Over-discharge
Recovery Voltage
Over-discharge
Voltage
Auto Temperature
Compensation
Battery Parameters
External Temperature
Sensor
Remote LCD Meter
Bluetooth Module
Parallel Charge Use
Cable
Installation Guidance
Paper
User Manual
Optional
-35ºC ~ +45ºC
IP34
1.0 kg 2.0 kg
12mA/12V ; 10mA/24V
<100Voc
20A 30A
≤ 3000 meters
190*120*59mm
40A
218*150*65mm
12V/24V
Auto (FLD/GEL/SLD)
MS2420 N MS2430 N MS2440 N MS4820 N MS4830 N MS4840N
12mA/12V;10mA/24V;8mA/36V;6mA/48V
12/24/36/48V
Auto (FLD/GEL/SLD)
Manual
(Li/User) Manual (Li/User)
<150Voc
20A 30A 40A
2.0 kg 1.1 kg 2.1 kg 2.1 kg
190*120*59mm 218*150*65mm
No-load Loss
Max Solar Input
Voltage
Rated Solar Charge
Current
Operating
Temperature
IP Protection
Net Weight
Communication Port
Operating Altitude
Controller Dimension
Controller Parameter
Model No.
Battery System
Voltage
Value
–
–
–
–
–
System Wiring
Grounded Negative Grounded
RS485+Bluetooth(APP)
11 12

60
3
65
20
2
125
190
175
180
80
105
5
5
150
218
200
205
115
60
5
5
MS2420N/MS4820N
Installation Area Dimension: 180*80mm
Product Dimension: 190*125*60mm
Installation Hole Size: 5*5mm
Connection Socket Size: 7.5*7.5mm
Connection Socket Size: 7.5*7.5mm
MS2430N/MS4830N/MS2440N/MS4840N
Product Dimension: 218*150*65mm
Installation Area Dimension: 205*60mm
Installation Hole Size: 5*5mm
14. Controller Dimension
13