NOTE: Installer will need to provide battery terminal connections and wire to make
connection between PWM controller and battery or batteries.
3. Plug the positive and negative leads from the PV extension cable directly into the Rooftop Box.
4. Identify the positive and negative cables terminated from the Rooftop Box and route them to
the PWM controller for the final connections.
Operation
Suggested Use
1. The PWM controller is intended for a 12 volt battery system.
2. It is advised to install PWM controller in a well ventilated environment as device may become
warm during operation.
3. Choose battery cables with minimum 16AWG gauge rated for 10A DC.
PWM Controller Status Indicators
LED indicators Indications
Charging
Battery
Mode Selection
Battery Type Selection Method:
● Press the button for 3 seconds. The LED will begin to flash indicating that the mode can be
changed.
● When the button is pressed again the LED number display will change from (1-4).
● When the number value corresponds to the battery type selected by the user, wait until the
LED stops flashing or press the button again for 3 seconds to complete the setting.
Numeric
Battery Type
Indicator
1
Sealed lead-acid batteries
2
GEL lead-acid batteries
NOTE: Default setting: Sealed lead-acid batteries.
Status
Solid on
Solid off
Slow flashing
Quick flashing
Solid on
Solid off
Slow flashing
Quick flashing
Numeric
Indicator
3
4
Funcitons
Solar panel has voltage
Solar panel has no voltage
Charging in process
System over voltage
Normal battery function
Battery is not connected
Battery is under voltage
Battery is over discharged
Battery Type
Flooded lead-acid batteries
Lithium iron phosphate batteries
16