S20660-SRS Kollmorgen
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The Kollmorgen S20660-SRS is a servo drive that is part of the S200 Servo Drives series and is rated for 120 to 240 VAC with a nominal bus voltage of 320 VDC. It provides a continuous current rating of 6 ARMS and a peak of 18 ARMS, with a continuous output power of 2000 W. The drive uses SynqNet network connectivity via RJ-45 connectors and has dimensions of 175.01 mm in height, 64.0 mm in width, and 131.57 mm in depth.
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Product Description:
The S20660-SRS is a digital servo drive produced by Kollmorgen and belongs to the S200 Servo Drives series. It converts a single-phase or three-phase AC supply into a controlled DC bus and a three-phase PWM output that operates a matched servo motor. By regulating current, velocity, and position, the unit integrates into automated machinery such as pick-and-place axes, packaging lines, and semiconductor tools. A plug-in SynqNet communication card and standard RJ-45 connectors allow the drive to synchronize motion commands with other nodes on the deterministic network.
It operates from a line input of 120/240 VAC, which is rectified to a nominal bus level of 320 VDC for energy storage and high-bandwidth torque control. Under rated conditions, the amplifier delivers 6 ARMS continuous and 18 ARMS peak, enabling fast acceleration for inertia-limited loads while maintaining thermal limits during steady operation. Continuous mechanical output reaches 2000 W when powered from a 240 VAC three-phase source, and short 3-second surges permit up to 6000 VA of apparent output to overcome breakaway or process transients. A bus overvoltage trip activates at 407 VDC ±5% to protect the internal capacitor bank and connected components.
The current regulator executes every 0.8 µs, supporting a maximum loop bandwidth of 3 kHz and a recommended setting of 2 kHz for stable cascade tuning. These time constants, together with SFD/Hall and sine-encoder feedback channels, let the drive achieve tight velocity tracking below one motor electrical cycle. The housing is compact; the unit measures 175.01 mm in height, 131.57 mm in depth, and just 64.0 mm in width, so it fits densely stacked control panels. Motion commands and status data travel over the deterministic SynqNet network through shielded RJ-45 ports, while an optional EnDat 2.1 card extends absolute feedback capability without changing the drive’s electrical performance.
Frequently Asked Questions about S20660-SRS:
Q: What is the continuous output power of the S20660-SRS servo drive?
A: The rated continuous output power for the S20660-SRS when operating at 240 Vac three-phase is 2000 W.
Q: What feedback support is available on the S20660-SRS servo drive?
A: The S20660-SRS supports feedback options such as SFD/Halls for all units.
Q: How long can the S20660-SRS maintain its peak current rating?
A: The peak current of 18 ARMS can be provided by the S20660-SRS for up to 3.0 seconds.
Q: What type of network communication does the S20660-SRS servo drive utilize?
A: The S20660-SRS uses a SynqNet network bus and is equipped with RJ-45 connectors.
Q: At what voltage does the S20660-SRS register a bus overvoltage fault?
A: The bus overvoltage fault threshold for this model is 407 VDC with a 5% tolerance.
