PowMr MPPT 30A/40A/50A/60A Solar Charge Controller

Dear Customers,

Thank you for choosing the MPPT series solar charge controller. Please take time to read this user manual, it will help you to make full use of the many advantages the controller can provide for your solar system.

This manual gives important recommendations for installing and using the product. Read it carefully for your own benefit and pay attention to the safety recommendations.

1. Warranty

PowMr appreciates your use of their controller. Any damaged unit caused by the user's failure to install, disassemble, or incorrect use of this product may be eligible for maintenance according to the prescription.

1.1 Warranty Regulations:

1. Within 30 days from the date of purchase, a faulty controller will be replaced free of charge under normal usage conditions (with authorization from the company's technical personnel).
2. Within 2 years from the date of purchase, a faulty controller will be repaired free of charge.

Note: Disassembling the product privately voids the warranty.

2. Safety Instructions and Waiver Liability

2.1 Safety Instructions

Be aware that only qualified professionals should install these controllers. Please read all manuals before installing them.

1. Keep the controller away from water. Do not use a wet towel to wipe the controller.
2. Keep the controller in an environmental temperature range from -22°C to +55°C. Avoid direct sunlight.
3. Ensure good heat dissipation.
4. Use pure copper wires and connect all polarities correctly.
5. The load output is only for DC loads less than 5A current.
6. Do not set any parameters if you are not a professional, as the controller can function correctly in default conditions, except for lithium batteries.

2.2 Liability Disclaimer

The manufacturer is not liable for damages, especially to the battery, caused by use other than as intended or as mentioned in this manual, or if the recommendations of the battery manufacturer are neglected. The manufacturer is also not liable if service or repair has been carried out by any unauthorized person, or due to unusual use, wrong installation, or bad system design.

3. Overview

The MPPT series solar charge controller is based on advanced Maximum Power Point Tracking (MPPT) technology, specifically developed for solar systems, achieving a charge controller conversion efficiency of up to 97%.

Outstanding Features:

• MPPT 30A/40A/50A/60A solar charge controller
• 100% MPPT technology
• Built-in DSP controller with high performance
• Automatic switch for 12V/24V/36V/48V battery banks
• 3-stage charging optimizes battery performance
• Overcharge protection, Input PV polarity reverse protection, Output limited current protection, Over-temperature protection
• Troubleshooting promotion function
• Suitable for battery types such as sealed lead acid, vented gel, and lithium battery, etc.
• Easy to mount

4. Dimensions

The controller has dimensions of approximately 21.4 cm (length) x 11.5 cm (width) x 5 cm (height). It features mounting brackets on the sides with screw holes for installation.

Notes:

• Use only PowMr's screws, as other screws may damage the internal PCB.
• Apply proper torque when pushing screws into the casing to avoid damaging the internal PCB by strong torque.

5. Installation

5.1 Installation Notes

Installation Diagram: A diagram shows the controller mounted on a surface, with cables connecting to solar panels, batteries, and loads. Arrows indicate a required clearance of approximately 5.91 inches (15 cm) around the controller for proper ventilation.

1. 1st Step: Connect the Batteries
   Connect the battery connection cable with the correct polarity to the middle pair of terminals on the solar charge controller (marked with a battery symbol). If the system is 12V, ensure your battery voltage is more than 12V for the controller to boot up.
2. 2nd Step: Connect the Solar Panel
   Ensure that the PV modules are protected from incident light. Ensure that the solar panel's maximum permissible input current is not exceeded. Connect the PV modules connection cable to the correct polarity of the left pair of terminals on the solar charge controller (marked with a PV modules symbol).
3. 3rd Step: Connect Loads
   Connect the load cable to the correct polarity of the right pair of terminals on the solar charge controller (marked with a lamp symbol). To avoid any voltage on the wires, connect the wire to the load before connecting to the controller.
4. 4th Step: Final Work
   Tighten all cables connected to the controller and remove all debris around the controller, leaving a space of approximately 5.91 inches (15 cm) for ventilation.

Notes: When the reading data of PV or Battery is constantly changing, do not worry. The controller is finding the Maximum Power Point (MPP). This behavior is caused by insufficient PV input power or voltage. Please contact PowMr's technological team for assistance.

5.2 Air Circuit Breaker Installation

PowMr strongly recommends connecting a fuse directly to the battery to protect against any short circuit at the battery wiring. Solar PV modules generate current whenever light strikes them. The current generated varies with light intensity, but even at low light levels, full voltage is provided by the modules. Therefore, protect the solar modules from incident light during installation. Never touch uninsulated cable ends; use only insulated tools, and ensure that the wire diameter is in accordance with the expected currents of the solar charge controller. Connections must always be made in the sequence described below.

Wiring Diagram for Air Circuit Breaker: A diagram illustrates the connections. The MPPT Solar Charge Controller has terminals for Solar PV (+/-), Battery (+/-), and DC Load (+/-). Air circuit breakers are placed between the controller and the battery, and between the controller and the PV modules.

Air Circuit Breaker and Wires Requirement

Reminder:

• For MPPT-30A and MPPT-40A, you can connect one wire to one PV+ and another wire to one PV-.
• For MPPT-50A and MPPT-60A, it is better to connect two wires to two PV+ and another two wires to two PV-.
• For BAT+ and BAT-, the wiring method is the same.

1. Install an air circuit breaker between the controller and batteries. Turn off the circuit breaker, then connect batteries to the controller with correct polarity.
2. Install an air circuit breaker between the controller and PV modules. Turn off the circuit breaker, ensure the PV polarity is correct, then connect wires between the PV modules and the controller.
3. Turn on the air circuit breaker between the controller and batteries.
4. Turn on the air circuit breaker between the controller and PV modules.
5. The controller will enter self-test mode. Its LCD will display the parameters if all connections are correct. The RUN lamp (located under the fan inside the casing) will flash every one second. If the controller does not respond, please read the full manual again for reinstallation or contact PowMr for help.

6. Operation

6.1 LCD Display

Main Interface and Sub-interface Diagram: The LCD display shows a main interface with three primary sections: PV voltage/output power, charging current/battery voltage, and battery voltage/charging current. Below this, a sub-interface shows various settings like load time (d00), floating voltage (d01), absorption voltage (d02), discharge protection voltage (d03), and battery type (d04).

6.2 Working Mode

6.3 Batteries Charge Voltage Reference

6.4 Manual Setting

Reminder: The controller will function correctly under default settings, except for lithium batteries.

Caution! All steps must be carried out when the PV modules are disconnected from the controller.

Step 1: D00 (Load Working Time)

Press the PRG button; the LCD displays D00. This setting is for load working time (default is 24-hour). Press ENT until the numbers flash, then use UP/DOWN to set the desired time. Long-press ENT to confirm. The output voltage is the same as the battery. The load is only for small DC loads less than 5A current. If no load is connected, simply leave this setting.

Step 2: D01 (Floating Charging Voltage)

Press the UP button; the LCD shows 13.8 (default value for floating charging). Press ENT until the numbers flash, then use UP/DOWN to set the desired voltage. Long-press ENT to confirm.

Caution! This value is for a single 12V battery. If multiple batteries are in series, the controller will automatically multiply the value proportionally, but the LCD will only display the voltage for one battery (e.g., for a 4x12V system, if you set 14.1V, the charge voltage will be 4x14.1V, but the LCD will still display 14.1V).

Step 3: D02 (Highest Absorption Charging Voltage)

Continue to press the UP button; the LCD shows 14.5 (highest absorption charging voltage for the battery). Press ENT until the numbers flash, then use UP/DOWN to set the desired voltage. Long-press ENT to confirm.

Caution! This value is for a single 12V battery. If multiple batteries are in series, the controller will automatically multiply the value proportionally, but the LCD will only display the voltage for one battery.

Step 4: D03 (Battery Discharge Protection Value)

Continue to press the UP button; the LCD shows 10.0 (protection value of battery discharge). Press ENT until the numbers flash, then use UP/DOWN to set the desired voltage. Long-press ENT to confirm. This means protection activates when a 12V battery drops below 10.0V, and there will be no output power from OU+ and OU-.

Step 5: D04 (Battery Type)

Continue to press the UP button; the LCD shows 00.00 (default for acid batteries). If using a lithium battery, press ENT until the numbers flash, then use UP/DOWN to choose 01. Long-press ENT to confirm. Step 2 (D01) is not used when choosing 01 for lithium batteries. The voltage set in Step 3 (D02) will be the highest charging voltage for lithium batteries. Press ESC to exit the setting menu.

Reminder: When all settings are complete, disconnect the battery and then reconnect the controller to verify if all settings were successful. Once confirmed, connect the PV modules to the controller.

7. Troubleshooting, Protections

7.1 Troubleshooting

7.2 Protections

1. PV Over Current Protection
   The controller will limit charging power to its rated charge power. An oversized PV array will not operate at its maximum power point.
2. PV Short Circuit Protection
   When a PV short circuit occurs, the controller will stop charging. Remove the short circuit to resume normal operation.
3. PV Reverse Polarity Protection
   Full protection against PV reverse polarity ensures no damage to the controller. Correct the connection to start normal operation.
4. Battery Over Voltage Protection
   If other energy sources charge the battery, and the battery voltage exceeds 15.5V (for 12V), 31.0V (for 24V), 46.5V (for 36V), or 62.0V (for 48V), the controller will stop charging to protect the battery from overcharging damage. (Note that the stop charging means the charging current will be very low.)
5. Battery Over Discharge Protection
   When the battery voltage drops to the set low voltage disconnect point, the controller will stop charging to protect the battery from over-discharging damage.
6. Load Over Current Protection
   If the load current exceeds 1.25 times the maximum load current rating, the controller will disconnect the load.
7. Load Short Circuit Protection
   Once a load short circuit occurs, the load short circuit protection will start automatically.
8. Over Temperature Protection

8. Technical Data

Protection Function

Properties

9. Content Included

• 1x MPPT Solar Charge Controller
• 1x English manual
• 4x Corner connections
• 4x Screws for controller casing

Application Form for Returns/Exchanges

Purchase Information

Returns/Exchanges Information