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1. General Information
1.1 Overview
With the MPPT control algorithm, the MP3741 can quickly and accurately
calculate the best maximum power point (MPP) of solar arrays, in order to
extract the maximum amount of charge current from the solar energy available.
This gives a considerable improvement over simpler PWM types, plus the solar
voltage can be much higher than the battery voltage.
There is a dual display function: The inbuilt LCD panel and remote meter (not
included). With Modbus communication protocol interface, users can control the
MP3741 via the Internet from any location with online access.
Features:
• Automatic current limit function of Solar input power, preventing overload.
• Wide MPPT operating voltage range.
• 12/24VDC automatic battery voltage detection.
• LCD panel display dynamically displays operating data and working
conditions.
• Multiple load control modes: Manual mode, Light ON/OFF, Light by Timer and
test mode.
• 3 preprogramed Lead-Acid battery options: Sealed, Gel, Flooded. Others can
be installed via external software (interface hardware required).
• Battery temperature compensation function (requires Remote Temperature
Sensor, not included).
• Real-time energy statistics function.
• RS-485 communication bus interface and Modbus communication protocol,
allow it to meet various remote communication requirements.
• Supports software upgrades.
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