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[page 6] | gpelectric.com

INTRODUCTION

1.2 OVERVIEW

Solar controllers, or solar charge controllers, continuously monitors the solar panel’s generating power and tracks the

highest voltage and current values (VI) in real time, enabling the system to charge the battery to maximum power. It’s

designed to be used in o󰀨-grid solar photovoltaic systems to coordinate operation of the solar panel, battery, and load,

functioning as the core control unit in o󰀨-grid photovoltaic systems.

This product features an LCD screen which displays the operating status, operating parameters, controller logs, and

control system parameters. Users can conveniently check parameters using the buttons and modify control parameters to

cater to di󰀨erent system requirements.

The controller utilizes standard Modbus communication protocol, making it easy for users to check and modify system

parameters on their own. An optional Bluetooth

adapter gives users access to remote monitoring.

With comprehensive electronic fault self-detecting functions and powerful electronic protection functions built inside the

controller, component damage caused by installation errors or system failures can be avoided.

1.3 FEATURES

• Advanced multi-peak tracking technology. When the solar panel is shadowed or part of the panel fails resulting in

multiple peaks on the I-V curve, the controller is still able to accurately track the maximum power point.

• Built-in maximum power point tracking (MPPT) algorithm signicantly increases energy utilization e󰀩ciency of the

photovoltaic system, (about 15% to 20% higher than traditional PWM charging.)

• Provides an active charging voltage regulation feature. At battery open circuit or lithium battery BMS overcharge

protection, the controller battery terminal will output the rated charging voltage value.

• MPPT tracking allows up to 99.9% e󰀩ciency.

• Uses advanced digital power technology to increase the circuit energy conversion e󰀩ciency to as high as 98%.

• Supports multple battery chemistries, including lithium, sealed, vented, AGM, and ooded Lead Acid.

• Current-limited charging mode. When the power of solar panel is too large and the charging current is higher than the

rated value, the controller automatically reduces the charging power so that the solar panel can operate at the rated

charging current.

• Supports automatic identication of lead-acid battery voltage.

• Features LED fault indicators and an LCD screen, which can display abnormal information, helps users to quickly

identify system faults.

• Historical data storage function is available, and data can be stored for up to a year

• The controller is equipped with an LCD screen allowing users to easily check device operation and statuses and

modify controller parameters

• Supports standard Modbus protocol to meet di󰀨erent options.

• Built-in over-temperature protection ensures that when temperature exceeds the set value of the device, the charging

current decreases linearly with the temperature, which reduces an increase in the controller’s temperature, avoiding

damage.

• Temperature compensation and automatic adjustment of charge and discharge parameters help to improve battery

life.

• Solar panel short circuit protection, battery open circuit protection and TVS transient protection.

Go Power MPPT-PRO Series User Manual

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