FANUC Original TECO Servo Drive with Position Speed Torque Control High-Resolution Encoder and Built-in PID Controls

The "15A/20A/30A/50A3" designation refers to a series of industrial AC Servo Amplifiers/Drivers (commonly by manufacturers like TECO in the JSDE/JSDEP series) paired with servo motors. These current ratings define the drive's continuous output capacity to control servo motors ranging from 100W to 2kW.

The naming convention (e.g., JSDEP-15A to 50A3) indicates the drive's output limit and power phasing:

• Control Modes: Support for Position, Speed, and Torque control. Position mode utilizes pulse train commands, while speed/torque modes utilize analog inputs.
• Feedback: Compatibility with high-resolution incremental encoders (e.g., 2500ppr/8192ppr) or absolute encoders for micron-level precision.
• Tuning & Operations: Built-in PID controls, gain switching, and electronic gear ratios to prevent mechanical overshoot/undershoot.
• Safety & Protection: Include built-in dynamic braking transistors (with terminals for external resistors), plus protective features for over-current, over-voltage, and encoder errors.