SERVOSTAR-400-M

The SERVOSTAR-400-M amplifier from Kollmorgen is a member of the robust S400 Servo Drives family, engineered for precision motion control in demanding industrial environments. This compact servo amplifier delivers a continuous input power of 2.5 kVA in S1 operation and meets international safety and reliability standards. The unit holds CE, UL, cUL certifications, ensuring compliance with global regulations and facilitating deployment across multiple regions. Its wiring employs copper conductors in accordance with EN 60204 and NEC Table 310-16, providing reliable electrical connections and simplified maintenance. Designed for integration into space-constrained control cabinets, the amplifier’s footprint is optimized without compromising performance.

The SERVOSTAR-400-M combines efficient thermal and electrical management to support high current demands under continuous operation. With a rated current thermal dissipation of 60 W (including PSU losses) and only 12 W when the output stage is disabled, it maintains stable operation under varying load conditions. Its residual voltage drop at rated current does not exceed 5 V, enhancing energy efficiency and reducing heat generation in long-running cycles. The subordinate current controller achieves a bandwidth of > 1.2 kHz, delivering rapid, precise current regulation for demanding motion profiles. Overvoltage protection thresholds are set at 455/800/900 VDC, and the amplifier supports a maximum DC bus link voltage of 900 V, providing robust defense against voltage spikes. Compact dimensions—278 mm in height, 70 mm in width, and 171 mm depth (235 mm with connectors)—and an approximate weight of 2.7 kg enable easy installation and flexible layout in panel assemblies.

Reliability is further enhanced by a safe restart lock that conforms to Safety Category 3 under EN 954-1, preventing unintended machine restarts and safeguarding operators. The amplifier’s efficient heat dissipation and use of high-grade copper conductors contribute to consistent performance in temperatures typical of industrial control cabinets. Certified to CE, UL, and cUL standards, the SERVOSTAR-400-M integrates seamlessly with Kollmorgen motion controllers and third-party servo motors for turnkey automation solutions. Ideal for robotics, packaging machinery, CNC systems, and conveyor drives, this servo amplifier balances compact form factor with advanced protection, ensuring uptime and precision in a wide range of motion control applications.