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Kollmorgen SR20200-2G407B

Product Name:​ SR Series High-Resolution Resolver or Servo Component
Product Introduction:
The SR prefix often denotes Resolvers​ or specific Servo Motors/Amplifiers​ in older Kollmorgen nomenclature. For SR20200-2G407B, it is commonly identified as a High-Resolution Resolver​ (size 20) or a legacy Servo Motor (NEMA 20 frame)​ used for position feedback or actuation.
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Detailed content

Resolver (SR Series Feedback):
  • Type:​ Brushless Variable Reluctance Resolver
  • Resolution:​ Up to 16-bit equivalent tracking
  • Electrical Angle:​ 360°
  • Excitation Voltage:​ ~10V RMS
  • Frequency:​ 10kHz typical
  • Output:​ Sin/Cos signals
  • Operating Temp:​ -40°C to 125°C
  • Protection:​ IP65
If Servo Motor (Legacy SR Series):
  • Frame:​ NEMA 20 (approx. 5cm square/round)
  • Rated Power:​ ~200W
  • Continuous Torque:​ 0.31 Nm
  • Peak Torque:​ 0.63 Nm
  • Speed:​ 4500 RPM
  • Bus Voltage:​ 320VDC
  • Current:​ 2.6A cont, 6.8A peak
Functional Features:
  • Extreme noise immunity​ (resolver based), ideal for harsh EMI environments.
  • Robust construction, no electronic parts inside rotor.
  • High accuracy angular position sensing.
Application Scenarios:
  • CNC axis feedback in high-EMI environments
  • Robotics joint sensing
  • Military/defense applications
  • Heavy industrial machinery
Structure:
  • Stator windings and rotor tooth structure (resolver).
  • Or laminated steel stator/Neodymium rotor (motor).
Precautions:
  • Resolver requires R/D converter (resolver-to-digital) in drive.
  • Signal cables must be twisted pair and shielded.

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