PowerTech MP3743 User manual

Instruction Manual
MPPT Solar
Charge Controller
for Lithium or SLA Batteries
MP3743

1
BOX CONTENTS:
PRODUCT DIAGRAM:
1 x 12V/24V 30A MPPT Solar Charge Controller
1 x External Temperature Sensor
1 x User Guide
1 x App Guide
11
12
13
16
5 6 7 8 9 10
14
15
1
4
3
2
1LCD Screen
2Green Indicator LED
3Red indicator LED
4External Temperature Probe
5Solar Positive Input
6Solar Negative Input
7Battery Positive Input
8Battery Negative Input
9Load Positive Output
10 Load Negative Output
11 Up Button
12 Menu Button
13 Enter Button
14 USB Outputs
15 Down Button
16 Ethernet Socket

2
LCD SCREEN:
ASolar Input Indicator
BSolar Current Indicator
CMPPT Charging Indicator
DWiFi Indicator
ERemote Control Indicator
FSetting Mode Indicator
GLoad Switch Indicator
HBattery capacity indicator
A
H I J K L M N O
P
B C D E F G
ILoad indicator
JDisplay indicator for current reading
KBattery type (12/24V)
LProtection Icon – See error codes
MTiming clock
NTiming clock
ODay/night indicator – set by PV input
PReading display with unit type

3
BASIC FUNCTIONS:
Settings Menu
If the display is o, tap the Menu button to turn it on.
Press & hold the Menu button to enter the settings menu, and tap the Menu
button again to cycle through each setting in the following order. Use the
Enter button to enter / save a setting.
# Menu Item Options
1Battery Type Standard (STD) / Lithium (L) / AGM
(A)
2WiFi On / O
3Load Voltage Protection Cut O 10 – 11.5V (12V) – Default 10V
20 – 23V (24V) – Default 20V
4Load Under Voltage Recovery 12 – 13V (12V) – Default 12.5V
24 – 26V (24V) – Default 25V
524 Mode On / O
6Time Hours / Minutes
7Load Timer On / O
When turned on, the next setting is
used to set the Load on time
Factory Reset
With the unit turned o, press & hold the Menu button & power up the
controller via the battery input. The screen will display FFFF to indicate all
settings have been factory reset.

4
FAULT CODES:
E1 Battery has been installed with the polarity reversed.
E2 Battery is not currently connected, or is under the low voltage cut o.
E3 Battery over current protection enabled. If the issue persists, the control-
ler may be faulty.
E4 Load over current / short circuit protection. Turn o the machine for 10
seconds to reset.
E5 Battery over voltage protection.
E6 Solar input over voltage protection.
E7 Over temperature protection. Charging will restart once the temperature
is under 60’C.
E8 Solar input has been installed with the polarity reversed.

5
SPECIFICATIONS:
SOLAR
Maximum PV Open Circuit Voltage: 100V
MMPT Voltage: 16 – 80VDC
Maximum PV Input Power: 450W (12VDC) / 900W (24VDC)
Maximum MPPT Current: 30A
GENERAL
Dimensions: 238 x 177 x 63mm
Weight: 1.5kg
Operating Temperature: -10°C – 40°C
Cooling method: Heatsink
Insulation Class: Class 1
IP Rating IP30
PROTECTIVE FUNCTIONS
High / Low Voltage Protection: High: 15V (12V) / 31V (24V)
Low: 8V (12VDC) / 18V (24VDC)
Reverse Polarity Protection: Yes
Temperature Cut O: 90°C
USB OUTPUT
Output Voltage 5VDC
Number of USB Ports 2
Maximum Output Current: 3.4A
DC OUTPUT
Battery Voltage: 12/24VDC
Output Current: 30A
STANDBY CURRENT
MPPT Charger Only: 60mA
MPPT Charger & WiFi: 160mA

6
NOTES:

Distributed by:
Electus Distribution Pty. Ltd.
320 Victoria Rd, Rydalmere
NSW 2116 Australia
www.electusdistribution.com.au
Made in China