Description

The DANAHER S21260-SRS is a high-performance digital servo drive from Danaher Motion’s SERVOSTAR® 600 series, designed for precision motion control in industrial automation. This advanced drive delivers 20A peak current and 10A continuous current (RMS) at 200–480V AC input, supporting brushless servo motors up to 7.5 kW. Engineered for dynamic applications, the DANAHER S21260-SRS features real-time EtherCAT communication for seamless integration into distributed control architectures, achieving cycle times as low as 250 µs. Its dual-loop control architecture combines position/torque feedback with advanced vibration suppression algorithms, enabling sub-micron positioning accuracy in high-inertia systems.

Compact and robust, the drive operates in ambient temperatures up to 55°C with derating and withstands 5g vibration (10–500 Hz). The DANAHER S21260-SRS includes built-in safety functions (STO, SS1, SS2 per IEC 61800-5-2) and supports multiple feedback devices including resolvers, incremental encoders, and absolute Hiperface® DSL interfaces. With Danaher’s proprietary Tuning Wizard auto-commissioning software, engineers achieve optimal servo response in minutes rather than hours. As a cornerstone of high-speed automation systems, this drive balances power density with intelligent control for demanding industrial environments.

Technical Specifications

Main Features and Advantages

DANAHER S21260-SRS revolutionizes motion control with adaptive Auto-Tuning Plus technology, dynamically adjusting servo gains during operation to maintain precision under variable loads. Its 32-bit DSP processor executes complex trajectory planning with 0.1 µm resolution. The drive’s Vibration Suppression Algorithm eliminates mechanical resonance in robotic arms and gantries, reducing settling time by up to 40%.

EtherCAT implementation supports distributed clocks (DC) for ±100 ns synchronization accuracy across multi-axis systems. Integrated power management includes regenerative braking with external resistor support, minimizing energy waste. Safety torque off (STO) functionality meets SIL 3 requirements without external relays. For diagnostics, the drive logs 500+ parameters with timestamped fault records accessible via WorkBench software. These innovations make the S21260-SRS indispensable for applications demanding both speed and accuracy.

Application Field

The DANAHER S21260-SRS excels in high-dynamics automation. In packaging machinery, it drives rotary cutters and flying saws with ±0.05 mm repeatability at 1,500 packages/minute. Semiconductor manufacturing leverages its precision for wire bonding and wafer handling robots. Printing presses utilize the drive’s electronic gearing for perfect registration at 30 m/s web speeds.

Automotive assembly lines deploy it for laser welding robots requiring micron-level path accuracy. In metal forming, the drive controls servo presses with adaptive tonnage monitoring, reducing die wear by 25%. Wherever rapid positioning, synchronization, or force control is critical – from textile looms to medical device assembly – the DANAHER S21260-SRS delivers uncompromised performance.

Related Products

DANAHER S20601-SRS: 6A continuous/12A peak compact servo drive

DANAHER TBM(S)-045C-2LN: Brushless motor with Hiperface® DSL feedback

DANAHER S70360-N: Regenerative braking resistor module

DANAHER C09200-SRS: EtherCAT system coupler

DANAHER S80262-SRS: 26A peak drive for high-torque applications

DANAHER S-VOLT-480: Input choke for harmonic suppression

Kollmorgen P70660: Cable kit for motor-drive integration

DANAHER AKM24E: Low-inertia servo motor family

Installation and Maintenance

Pre-installation preparation: Verify AC input voltage stability (±10%) and install 20A slow-blow fuses per local codes. Maintain 50mm clearance above/below drive for convection cooling. Use shielded twisted-pair cables for motor/feedback connections, grounding shields at drive end only. Configure EtherCAT node addressing before power-up.

Maintenance recommendations: Monitor heatsink temperature via EtherCAT PDO mapping; derate output above 55°C ambient. Clean air vents quarterly with low-pressure air. Verify safety circuit functionality annually using validated test procedures. For firmware updates, use Danaher WorkBench via USB service port. Store spares in ESD-safe packaging with 30–60% humidity.