ETEL DSO-PWS121-003 Power Supply Module – High Efficiency
The ETEL DSO-PWS121-003 is a high‑efficiency power supply module specifically developed for industrial motion control systems. It converts AC mains into a regulated DC bus voltage with minimal energy loss, contributing to lower operating costs and reduced cooling demands. This module is part of the DSO‑PWS series, known for their ruggedness and long‑term stability.
Designed to supply power to ETEL servo amplifiers and other drive components, the DSO-PWS121-003 delivers a nominal output of 565 VDC with a continuous power rating of 3.5 kW. Its advanced switching topology ensures low ripple and excellent transient response, maintaining voltage regulation even during rapid load changes caused by motor acceleration and deceleration.
Key Features
High Efficiency: Typically greater than 95%, reducing heat dissipation and energy consumption.
Wide Input Range: 200–480 VAC, 50/60 Hz, suitable for global use.
Active Power Factor Correction: Minimizes harmonic distortion and meets EN61000‑3‑2 standards.
Comprehensive Protection: Overvoltage, undervoltage, overcurrent, overtemperature, and short‑circuit protection.
Parallel Operation: Allows up to four units in parallel for increased power or redundancy.
Compact and Lightweight: DIN‑rail mountable with a small footprint.
Technical Specifications
The DSO-PWS121-003 provides a nominal DC output voltage of 565 VDC, adjustable from 500 to 600 VDC via a potentiometer. The continuous output current is 6.2 A, with a peak capability of 9 A for 30 seconds. The module includes an integrated fan for forced air cooling, with thermal derating to prevent overheating. Electrical connections are via screw terminals, and the unit complies with UL 508 and CE directives.
Applications
Multi‑Axis Servo Systems: Providing centralized DC power for several amplifiers.
Linear Motor Stages: Powering high‑force motors in semiconductor manufacturing.
Robotic Workcells: Supplying stable power to robot controllers and auxiliary axes.
Test and Measurement Rigs: Ensuring clean power for precision instrumentation.
Integration and Monitoring
Installation is simplified by the module’s standardized dimensions and terminal arrangement. LED indicators provide visual status of power input, output ready, and fault conditions. The module also offers relay contacts for remote monitoring of output OK and fault signals, enabling integration with supervisory control systems. The built‑in EMC filter eliminates the need for external filtering in most installations.
Benefits
Energy Savings: High efficiency reduces electricity costs and improves green manufacturing metrics.
System Reliability: Stable DC bus minimizes drive faults and improves motion quality.
Reduced Panel Space: Compact design frees up space for other components.
Global Compliance: Certified for use in North America, Europe, and Asia.
Conclusion
The ETEL DSO-PWS121-003 power supply module is an excellent choice for system integrators seeking a reliable, efficient, and compact power source for their motion control applications. Its robust design, advanced protection, and flexible integration options make it a valuable asset in any industrial automation project.
