S20250-VTS Kollmorgen
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The Kollmorgen S20250-VTS is a servo drive from the S200 Servo Drives series that supports velocity and torque operation modes. It has a continuous power rating of 350 W, a nominal bus voltage of 320 VDC, and operates with a voltage rating of 120 VAC doubler or 240 VAC single phase. The drive supports multiple feedback options including SFD/Halls and offers a continuous current rating of 1.5 ARMS with a peak of 4.5 ARMS.
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Product Description:
Kollmorgen's S20250-VTS belongs to the S200 Servo Drives series and serves as a compact pulse-width-modulated amplifier for brushless servomotors in industrial automation lines. It converts single-phase mains power into a regulated DC bus. That bus feeds a phase-controlled output, allowing PLCs or motion controllers to run closed loops for velocity or torque regulation on connected axes. Its pulse-width-modulated output is intended for brushless servo axes that require controlled current delivery during dynamic motion.
It can operate from 120 VAC with a doubler front end or from 240 VAC single-phase, delivering continuous output power of 350 W from a nominal bus. The current loop reaches 3 kHz, while the power stage provides 1.5 A RMS continuous current and 4.5 A RMS peak current for acceleration transients. A stabilized bus of 320 VDC feeds the inverter section, and the ±12.5 V analog command port supports proportional control. Digital step inputs are accepted up to 1.5 MHz, and quadrature references reach 625 kHz. Encoder feedback exits through differential drivers, and a 50 mA digital output channel can actuate status indicators or relays. The analog command interface also supports straightforward integration with external motion controls.
In velocity mode, the internal controller reaches 800 Hz, and the same hardware can switch to torque mode when current regulation is the priority. Encoder emulation toggles at 2.5 MHz, so high-resolution position loops in the host controller are not rate-limited. Short mechanical bursts are supported by 1200 W of output, while the drive draws only 5 A RMS at the lower-voltage input setting. No electrical option card is installed, but SynqNet modules can be added for EnDat 2.1 or sine encoder interfacing, and a separate CAN card supports SFD or Comcoder protocols. The nominal bus is maintained by a passive rectifier. All S200 units recognize SFD/Hall feedback, and this model also passes quadrature signals to the controller, preserving timing integrity throughout the motion chain.
Frequently Asked Questions about S20250-VTS:
Q: What is the analog command range for the S20250-VTS servo drive?
A: The S20250-VTS servo drive supports an analog command range of ±12.5 V for precise control input.
Q: What is the continuous power rating of the S20250-VTS at 120 Vac doubler?
A: This model delivers a continuous output power of 350 W when operated at 120 Vac doubler.
Q: What are the continuous and peak current ratings of the S20250-VTS servo drive?
A: The S20250-VTS provides a continuous current rating of 1.5 ARMS and a peak current rating of 4.5 ARMS.
Q: What is the nominal bus voltage required for the S20250-VTS?
A: The nominal bus voltage for this Kollmorgen drive is specified as 320 VDC.
Q: What functionality modes are available on the S20250-VTS servo drive?
A: This servo drive operates in velocity and torque control modes for flexible motion control.
