Schneider ATV630D90N4 is a variable frequency drive (VFD) or inverter manufactured by Schneider Electric. It is part of Schneider's ATV630 series of medium voltage inverters.

The ATV630D90N4 is specifically designed for electric motor control in various industrial applications. It is capable of converting an AC power supply to a variable frequency AC output, allowing precise control of motor speed and torque. This type of inverter is commonly used in applications such as pumps, fans, conveyors, compressors, and other electric motor-driven equipment.

Some of the key features and specifications of the Schneider ATV630D90N4 include:

1. Power Rating: The "90" in the model number indicates that it has a power rating of 90 kW (approximately 121 horsepower). This means it can control motors with a power requirement within that range.

2. Input Voltage: The input voltage of the ATV630D90N4 can vary depending on the specific model. It is designed to work with different input voltage options, such as 380V to 480V AC.

3. Control Modes: The Schneider ATV630D90N4 supports various control modes, including voltage vector control (VVW), sensorless flux vector control (SVC), and torque control.

4. Communication Protocols: The inverter is equipped with various communication protocols, such as Modbus, Ethernet, CANopen, DeviceNet, and others, allowing for easy integration with control systems and industrial networks.

5. Protection and Safety Features: The ATV630D90N4 includes built-in protections against over-temperature, over-current, over-voltage, under-voltage, and other electrical faults. It also has features like automatic motor ramp-up and ramp-down, which help prolong the motor's lifespan and enhance operational safety.