COTEK SD Series Pure Sine Wave Inverter

Ethernet (optional) and CAN bus: supports more advanced networked monitoring and management, and the CAN bus is designed specifically for high-speed communication within parallel systems.

Fault diagnosis and maintenance

When there is an abnormality in the inverter, a preliminary judgment can be made by observing the LED indicator lights:

Red LED flashing rapidly: Input overvoltage (OVP). Check the voltage of the battery or charging system.

Red LED flashing slowly: Input undervoltage (UVP). Check the battery level, whether the cable connection is secure, and whether the cable specifications meet the standards.

Red LED intermittent flashing: Over temperature protection (OTP). Check the ventilation of the installation environment, clean the fan and ventilation openings of debris.

Red LED always on: Output overload (OLP) or short circuit. Check the load device, disconnect all loads and try restarting.

Orange LED flashing: Voltage abnormality warning (not turned off), prompting the user to handle it in a timely manner.

Daily maintenance requires ensuring that the equipment is clean and well ventilated, and regularly checking for loose cable connections. COTEK provides a 24 month limited warranty for this series of products, but the warranty does not cover damage caused by misuse, abuse, improper installation, natural disasters, or unauthorized alteration of serial numbers.