Solar Panels New Zealand

Adjustable Low Voltage Cut Off PCB Module

Description
Reviews

This is a highly configurable low voltage cut off PCB module with ultra low parasitic power. The voltage switching is controlled by mosfets. The maximum current load is 10A.

Operating voltage is 6V-30V

Standard Mode (voltage displayed)

Standby current : 7mA

Working current : 11mA

Power Saving Mode (no voltage display) :

Standby current : 4mA

Working current : 7mA

Setup and Usage :

Standard-Mode:

After connecting the battery, enter the Standard Mode (default), and display the current battery voltage(Current Voltage)

Energy-Saving mode:

In Standard Mode, press and hold the "SET" button to enter the Energy-Saving Mode. After power on again, it will still enter the Energy-Saving Mode. In the Energy-Saving Mode, the digital tube is not displayed, and other functions work normally. In the Energy-Saving mode, press and hold the "SET" button, exit the Energy-Saving Mode, and enter the Standard Mode.

Setup-Mode (see Operation Steps for details):

Set the Start-Discharge-Voltage (High voltage):

In the Standard-Mode, press and hold the "INC" button (or trigger the "SET" button after triggering the "INC" button) to enter the Start-Discharge-Voltage Setup-Mode.

Set the Cutoff-Discharge-Voltage (Low voltage):

In the Standard-Mode, press and hold the "DEC" button (or trigger the "SET" button after triggering the "DEC" button) to enter the Cutoff-Discharge-Voltage Setup-Mode.

In the Setup-Mode ,triggering the "INC" button increases the voltage and triggers the "DEC" button to decrease the voltage. Long press "INC" or "DEC" button to quickly set the voltage.

Voltage-Calibration:

Press and hold the "SET" button first, and then power on again to enter the Voltage-Calibration mode(Note: press the button ->power on).

For example, the power supply voltage is 12.00V and the module display voltage is 12.34V. At this time, calibration is required.

1.Press and hold the "SET" button first, and then power on (be sure to press the button first, and then power on), then the digital tube displays 12.34V;

2.Trigger "DEC" or "INC" button, let the digital tube display 12.00V

3.Trigger the "SET" button again to save the parameters. (If you do not want to save the parameters, please power off)

Factory-Settings:

In the Standard-Mode, press and hold the "SET" and "INC" buttons at the same time, until the digital display shows"8888", at this time, restore the factory settings, Cutoff-Discharge-Voltage is 11.8V, Start-Discharge-Voltage is 12.8V. (Note: voltage calibration parameters cannot be reset to factory settings)

Operation Steps (must follow the steps):

Example 1: We want to set 12V lead-acid battery discharge protection function, Cutoff-Discharge-Voltage is 11.7V and Start-Discharge-Voltage is 12.9V.

Step 1: Connect the battery's positive and negative ports to the module's BAT+/BAT- ports (to ensure that the battery has more than 20% of the capacity); the digital tube will display the battery voltage (such as the battery voltage is 12.1V, the digital display will show "C12 .1")

Step 2: Trigger the "INC" button, the digital display will show "H12.8", then trigger the "SET" button, "H" will flash, this is the Start-Discharge-Voltage setting mode.

Step 3: In the Start-Discharge-Voltage setting mode, trigger the "INC" button to increase the voltage and the "DEC" button to decrease the voltage. Long press "INC" or "DEC" button to quickly set the voltage.

Step 4: Set the voltage to "H12.9" and trigger the "SET" button to save the settings.

Step 5: Trigger the "DEC" button, the digital display will show "L11.8", then trigger the "SET" button, "L" will flash, this is the Cutoff-Discharge-Voltage setting mode.

Step 6: In the Cutoff-Discharge-Voltage setting mode, trigger the "INC" button to increase the voltage and the "DEC" button to decrease the voltage. Long press "INC" or "DEC" button to quickly set the voltage.

Step 7: Set the voltage to "L11.7" and trigger the "SET" button to save the settings.

Step 8: Disconnect the port BAT +/BAT- and connect the port OUT+/OUT- to the load.

Step 9: Connect the port BAT +/BAT- again and re-power it. After 3 seconds delay, the load will be powered.

Example 2: Start-Discharge-Voltage(H) and Cutoff-Discharge-Voltage(L) has been set, Direct wiring.

Step 1: Connect port OUT+/OUT- to the load

Step 2: Connect the battery's positive and negative ports to the module's BAT+/BAT- ports (to ensure that the battery has more than 20% of the capacity); the digital tube will display the battery voltage (such as the battery voltage is 12.1V, the digital display will show "C12 .1")

Step 3: Power is supplied to the load after a delay of 3 seconds