ETEL DSA2 S1B22A Digital Servo Amplifier

The ETEL DSA2 S1B22A is a high‑performance digital servo amplifier belonging to the established DSA2 family. This amplifier is renowned for its high efficiency, low harmonic distortion, and robust construction, making it a versatile choice for driving both linear and rotary motors in industrial environments. Its advanced PWM stage and comprehensive protection features ensure reliable operation even in demanding conditions, such as high‑ambient‑temperature workshops or high‑vibration machinery.

Primary Features

• High Efficiency: > 95 % efficiency reduces heat generation and operating costs.

• Wide Voltage Range: Operates from 24 to 80 VDC, accommodating a broad motor selection.

• Low Output Ripple: Advanced PWM modulation ensures smooth current output for minimal torque ripple.

• Flexible Command Interfaces: Supports analog ±10 V, step/direction, and optional fieldbus modules.

• Integrated Brake Chopper: Handles regenerative energy internally, eliminating external braking resistors.

Technical Specifications

• Supply Voltage: 24‑80 VDC

• Continuous Current: 6 A / peak 12 A

• PWM Frequency: 20 kHz

• Feedback: Incremental encoder, absolute encoder (BiSS, EnDat), Hall sensors

• Communication: Analog, Step/Dir, or EtherCAT (with adapter)

• Digital I/O: 6 inputs, 3 outputs

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature

Application Areas

The DSA2 S1B22A is commonly used in conveyor systems, packaging machinery, textile equipment, and small material handling systems. Its high efficiency makes it particularly attractive for battery‑powered or energy‑sensitive applications.

Installation and Cooling

This amplifier features a rugged aluminum heat sink designed for natural convection cooling. For continuous high‑load operation, forced‑air cooling is recommended. ETEL provides detailed thermal guidelines to ensure optimal performance. The unit's modular terminal blocks simplify wiring and maintenance.

Conclusion

The ETEL DSA2 S1B22A digital servo amplifier combines efficiency, reliability, and versatility in a compact design. It is a proven solution for engineers seeking a dependable drive for a wide variety of motion control tasks.