Rexroth R-ILB S3 AI12 AO4 SSI-IN4 R911171949

Product Name:​ Rexroth IndraLogic Inline Block I/O – Sercos III Analog & SSI Axis Module
Product Introduction:​ This is a compact Sercos III block I/O node combining 12 analog inputs, 4 analog outputs and 4 SSI absolute encoder interfaces. It is designed for machine tools, servo axes and packaging lines where process signals and position feedback share one fieldbus node.
Category:
Description
Technical Specifications:
  • Fieldbus: Sercos III
  • Module Supply: 24 VDC (19.2–30 VDC), max 1.2 A
  • Analog Inputs: 12 channels, 0–10 V / ±10 V, 0–20 mA / 4–20 mA / ±20 mA
  • AI Resistance: 260 kΩ voltage, 240 Ω current
  • AI Filter Cut-off: 10 kHz (-3 dB)
  • Analog Outputs: 4 channels, same voltage/current ranges as AI
  • AO Load: ≥2 kΩ voltage, ≤500 Ω current
  • Resolution: 16 bit
  • Process Update: 75 µs including DAC conversion
  • SSI Inputs: 4 channels, 8–31 bit, encoder supply 24 VDC 200 mA
  • SSI Clock: 67.5 kHz–4 MHz configurable
  • Temp: -25 to +60 °C
  • Protection: IP20
  • Dimensions: 141 × 156 × 57 mm, 505 g
    Functional Features:
  • 16-bit simultaneous sampling analog section
  • Push-in spring terminals, shielded twisted pair support
  • SSI with differential RS422-compatible clock/data
  • Hot-run LED, error LED, channel activity LEDs
    Application Scenarios:​ CNC injection molding clamp control, printing press web tension, robot joint feedback, hydraulic proportional valve command, wind turbine pitch positioning.
    Installation Requirements:​ Mount on Rexroth Inline DIN base; separate analog shield from SSI shield; SSI cable ≤30 m recommended; 120 Ω termination if specified.
    Usage Notes:​ Never power 24 VDC logic and encoder supply from different sources without common reference; CPOL/CPHA must match encoder; avoid 50 Hz noise by using twisted shielded pairs.
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