Here is some information about the Delta ASD-B2-0121-B servo driver:

Function: The ASD-B2-0121-B is a digital servo drive that provides control and power amplification for AC servo motors. It is designed to accurately control the speed, torque, and position of servo motors in various industrial applications.

Power Rating: The "0121" in the model number indicates that the servo driver has a power rating of 1.2 kW (kilowatts). This power rating refers to the maximum output power capability of the drive.

Control Modes: The Delta ASD-B2-0121-B servo drive supports various control modes, including position control, speed control, and torque control. This allows for precise and flexible control over the connected servo motor.

Communication Interfaces: The servo driver is equipped with communication interfaces to facilitate integration into automation systems. It typically includes interfaces such as RS-485 and Modbus, which allow for communication with a PLC (Programmable Logic Controller) or other control devices.

Protection and Safety Features: The ASD-B2-0121-B servo driver is designed with built-in protection functions to ensure safe and reliable operation. It includes features such as overvoltage protection, overcurrent protection, and short-circuit protection, among others.