In the field of modern industrial automation, the performance of servo drives directly determines the operational efficiency and accuracy of the entire machine. The Kollmorgen SERVOSTAR 600 series, as a high-end motion control product under Danaher Motion, has become a trusted solution for engineers worldwide due to its excellent technical architecture and flexible configuration capabilities. Among them, the S606 model (commonly referred to as S60661 in the order number) has become the benchmark product for servo drives in the medium power range with a continuous current of 6A, a power level of 4 kVA, and a wide voltage input range of 230-480V.
Core Technology Highlights
The S606 driver adopts state vector modulation (SVM) and DQ current control technology, which can achieve extremely low torque ripple and high-speed response at a current loop refresh rate of 16kHz. Its speed loop bandwidth can reach up to 400Hz, coupled with a communication refresh rate of 62.5 μ s, meeting the complex motion control requirements of high dynamic response scenarios such as electronic camshafts, flying shears, and fast positioning.
The driver has built-in automatic current and speed regulation functions, supports PIPlus (PDFF) or traditional PI controllers, and can perform Bode plot analysis and servo tuning through MOTIONLINK software, greatly simplifying the debugging process.
Flexible feedback and communication interface
The S606 driver supports CANopen communication protocol from the factory, and can connect up to 127 slave devices without the need for additional optional cards, with a communication speed of up to 1 Mbps. Meanwhile, users can expand mainstream bus interfaces such as PROFIBUS, DeviceNet, SERCOS, etc. through on-site installed option cards.
In terms of feedback devices, S606 supports rotary transformers, sine encoders, incremental encoders (S300), and SSI absolute encoders, and integrates encoder equivalent output (ROD) to provide position signals to the controller without the need for additional feedback conversion modules.

Powerful I/O and control capabilities
S606 provides:
2-channel ± 10V analog input (12/14 bit)
4-channel digital input, 2-channel digital output (24V, PLC compatible)
Remote enable input, drive status relay output
Optional SAC single axis controller card, upgrading the driver to a programmable independent controller, supporting True BASIC language programming, electronic gears, camshafts, PLS and other functions.
Safety and reliability design
S606 complies with UL, cUL, and CE certifications, with a built-in CE power filter (up to 20A) and comprehensive protection against short circuits, overvoltage, undervoltage, overheating, and grounding. Optional integrated safety relay (AS option) can safely cut off the power module to prevent accidental restart. The drive supports regenerative power sharing, allowing multiple devices to share the DC bus, improving energy efficiency and reducing system costs.
Typical application areas
Thanks to its 4 kVA power and high dynamic response capability, S606 is widely applicable to:
High speed packaging machinery
Printing and paper processing equipment
Electronic assembly and screening equipment
Robot joints and material handling system
Textile and glass processing machinery
Supporting support and development tools
Users can configure drivers, monitor real-time oscilloscopes, map I/O, and program motion tasks through MOTIONLINK for Windows software. For advanced users, BMDS (BASIC Moves Development Studio) provides a True BASIC programming environment that supports multitasking, Modbus RTU, NVRAM data storage, and other functions.



