MPPT S3 Series User manual

S3 SERIES MPPT SOLAR CHARGE CONTROLLER V117
For Models: S3-30A, S3-40A, S3-50A, S3-60A
Reminder: For advanced function and application, please go to www.makeskyblue.com
Main Features
30A/40A/50A/60A MPPT solar charge controller
MPPT technology
Built-in DSP controller with high performance
Automatic battery voltage detection for 12V/24V/36V/48V
3-stage charging optimizes battery performance
The MPPT track speed is 5 times faster than traditional controllers
The charging voltage accuracy is ±0.2V
Overcharge protection, Input PV polarity reverse protection, Output limited current protection, Over-temperature protection
Suitable for battery types such as sealed lead acid, vented gel and lithium battery, etc
Warning and Caution
Be aware that only qualified professionals could install these controllers. Please read full manual before installing
them.
1) The controllers can be installed indoor only. Keep controller away from water. Don’t use wet towel to wipe controller.
2) Keep controller in an environmental temperature from -22℃~+55℃. Avoid direct sunlight.
3) Keep good heat dissipation.
4) Use the pure copper wires and connect all polarity correctly.
5) The output is only for DC load less 5A current. If your battery is 48V, then load should be 48V and current less 5A
6) Please don’t set any parameters if you are not professional since the controller can work well on default except lithium
battery.
7) Please don’t insert any meter or other devices between controller to battery and controller to PV.
8) Please use two-pole circuit breaker. And make sure input and output with separate circuit breakers.
PV Module Requirement
Models: S3-30A, S3-40A, S3-50A, S3-60A V117
S3-30A
S3-40A
S3-50A
S3-60A
Maximum PV Module Power
For 12V Battery
≤400W
≤480W
≤600W
≤720W
For 24V Battery
≤720W
≤960W
≤1200W
≤1440W
For 36V Battery
≤1000W
≤1400W
≤1800W
≤2100W
For 48V Battery
≤1200W
≤1700W
≤2200W
≤2800W
PV Module Open Circuit Voltage
(Voc of panel should be in the
correct range)
For 12V Battery
DC20V~DC80V
For 24V Battery
DC37V~DC105V
For 36V Battery
DC50V~DC160V
For 48V Battery
DC72V~DC160V
Notes: Voc is 1.5 or 2 times than battery voltage, then it’s best efficiency. Please choose the PV modules with right Voc.

Two-pole Circuit Breaker and Wires Requirement
Models
S3-30A
S3-40A
S3-50A
S3-60A
Pure copper wires
6mm²/ 9AWG
6mm²/ 9AWG
6mm²/ 9AWG
x2PCS
6mm²/ 9AWG
x2PCS
Circuit breaker
63Ax2PCS
63Ax2PCS
63Ax2PCS
100Ax2PCS
Installation steps
1. Take one two-pole circuit breaker and keep it turn off, then install this circuit breaker between controller and battery, then
connect batteries to controller with correct polarity. Set the controller parameter that you want (See Manual Setting steps)
and reboot controller. Double check the settings successful or not. If for acid battery, you don’t need to set the parameter and
controller works well. The battery voltage should be over 12V, then the controller can start up.
2. Take another two-pole circuit breaker and keep it turn off, then install this circuit breaker between controller and PV
modules, and make sure the PV polarity correct, then connect wires between PV modules and controller. Make sure all wire
connection stable, or it’s easy to break CPU.
3. Turn on the circuit breaker between controller and batteries, and turn on the circuit breaker between controller and PV
modules.
4. The controller LCD displays the parameters if all is correct. If the controller is no response, please send email to
[email protected] for help.
Reminder
For S3-30A and S3-40A, you can connect one wire to one PV+ and another wire to one PV-.
For S3-50A and S3-60A, it’s better to connect two wires to two PV+ and another two wires to two PV-.
For BAT+ and BAT-, it’s same way to connect wires.
LCD display
Item
Description
1
PV voltage / Output power
2
Battery voltage / Charging current
3
Working mode/Error code / Temperature
4
ACC Power Generation
Working mode
3.0
Night mode, no charging
4.0
MPPT mode
7.0
Absorption mode
8.0
Floating mode
MakeSkyBlue
MPPT SOLAR CHARGE CONTROLLER
Circuit breaker
Circuit breaker
DC Load
PV
Battery

Troubleshooting
Code
Description
How to solve
18
Input PV voltage is low
Increase the PV voltage
60
Over-temperature protection
Fan will work and temperature reduction automatically
63
Battery voltage is high
Battery high voltage protection and wait for recovery
65
Battery voltage is low
Battery over-discharge and wait for recovery
71
Input PV voltage is high
Decrease the PV voltage, refer to correct Voc range
73
Over-charging current
Decrease the PV power, refer to correct Voc range
74
Output load is short
Disconnect the load and press ENT over 5 seconds
Basic Parameter
Models
S3-30A
S3-40A
S3-50A
S3-60A
Charging mode
3-stage: constant current(MPPT), constant voltage, floating
Battery voltage automatic recognition: 12V Battery
DC9V~DC15V
Battery voltage automatic recognition: 24V Battery
DC18V~DC29V
Battery voltage automatic recognition: 36V Battery
DC30V~DC39V
Battery voltage automatic recognition: 48V Battery
DC40V~DC60V
Overcharging protection voltage
12V Batt: 15V; 24V Batt: 30V; 36V Batt: 45V; 48V Batt: 60V
Limited current protection
31A
42A
51A
61A
Max efficiency
≥98.2%
PV utilization
≥99%
Protection function
Temperature protection
75℃
Fan-on temperature
>45℃
Fan-off temperature
<40℃
Properties
Size (mm)
214x115x50
Net weight(Kg)
1.1
Gross weight(Kg)
1.2
Electromagnetic compatibility
Accord to EN61000, EN55022, EN55024
Enclosure
IP21
Environmental temperature
-20℃~ +55℃
Storage temperature
-40℃~ +75℃
Manual Setting
Reminder: The controller will work well on default setting except lithium battery.
Caution! Disconnect the PV modules before setting the controller. When you set up all steps, please reboot the
controller to see if all setting is successful or not.
Step 1: D00 Press the button PRG, then LCD displays D00. This is setting for load working time (Default is 24-hour). Press
ENT until numbers flash, then long-press UP/DOWN to set up time that you want, press ENT to confirm it. This output voltage
is same as battery. The load is only for small DC loads less 5A current. If no load, just leave it.
Step 2: D01 Press the buttonUP, LCD shows 13.8 (Voltage can be set from 12V-17V). This is default value of floating voltage.
Press ENT until numbers flash, then long-press UP/DOWN to set up voltage that you want, press ENT to confirm it.
Caution! This value is for one 12V battery. If there are many batteries in series, the controller will multiply them in proportion
automatically and the LCD only displays the voltage of one battery (For example, if your battery is 4x12V, and if you set the
voltage at 14.1, the charge voltage will be 4x14.1 automatically, but the LCD only displays 14.1).

Step 3: D02 Continue to press the button UP, LCD shows 14.5 (Voltage can be set from 12V-17V). This is highest absorption
voltage for battery. Press ENT until numbers flash, then long-press UP/DOWN to set up voltage that you want, press ENT to
confirm it.
Caution! This value is for one 12V battery. If there are many batteries in series, the controller will multiply them in proportion
automatically and the LCD only displays the voltage of one battery.
Step 4: D03 Continue to press the button UP, LCD shows 10.0. This is protection value of battery discharge. Press ENT until
numbers flash, then long-press UP/DOWN to set up voltage that you want, press ENT to confirm it.
It means it’s protected when 12V battery is less 10.0V and there is no output power from OU+ and OU-.
Step 5: D04 Continue to press the button UP, LCD shows 00. 00 is default for acid batteries.
If it’s for lithium battery, please press ENT until numbers flash, then long-press UP/DOWN to choose 01, press ENT to confirm
it. Step 2 (D01) is no useful when you choose 01 for lithium battery. And the voltage in step 3 (D02) will be highest charging
voltage for lithium battery. Press ESC to exit the setting menu. Reboot the controller and check settings again.
Batteries charge voltage reference
Battery Type
Absorption Voltage ( Constant voltage )
Floating Voltage
12V
24V
48V
12V
24V
48V
Vented
14.2V
28.6V
57.2V
13.2V
26.4V
52.80V
Sealed
14.4V
28.8V
57.6V
13.8V
27.6V
55.2V
Gel
14.4 V
28.8V
57.6V
13.8V
27.6V
55.2V
NiCd
14.2V
28.6V
57.2V
14.0V
28.0V
56.0V
Lithium
You can set the voltage from 12V to 17V.
Dimension
Notes: Please use our screws only since it may damage the internal PCB if using other screws.
Please use proper torque to push the screws into casing since it may damage the internal PCB by strong torque.
Content Included
1 Controller 1 English manual 4 Corner connections 4 Screws for controller casing
MakeSkyBlue (Shenzhen) Technology Co., LTD
1402M, Bldg. C6, Hengfeng Industry Zone, Hezhou, Baoan, Shenzhen China 518101
Tel: [phone] | www.makeskyblue.com | [email protected] V117