TOSHIBA UTNH23A

  • Product Name:​ Digital Input Interface Module (UTN Series)
  • Product Introduction:​ 32-channel isolated discrete input module for TOSHIBA Unified Control System (US-series racks). Acquires status from limit switches, pressure contacts, E-stop circuits, relay outputs.
  • Technical Specifications:
    • Channels:​ 32 isolated digital inputs
Category:
Description
    • Input Voltage:​ 24–48 VDC (on-state ≥19 VDC, off-state ≤5 VDC)
    • Current:​ ~8 mA/channel at 24 VDC
    • Isolation:​ Optical, 1500 VAC channel-to-backplane
    • Response:​ <2 ms (programmable filter)
    • High-Speed:​ Pulse counting on selected channels
    • Operating Temp:​ 0 °C to 60 °C
    • Storage Temp:​ -20 °C to 80 °C
    • Humidity:​ 5–95% RH non-condensing
    • Mount:​ Rack mount in TOSHIBA US frames, hot-swappable
  • Functional Features:​ Channel-level optical isolation; fast event capture for turbine trip/boiler interlock; diagnostic LED support.
  • Application Scenarios:​ Thermal/nuclear power control, turbine hall I/O, motor control center status acquisition.
  • Installation Requirements:​ Insert into compatible UTN I/O slot; verify backplane 5 VDC present before hot-swap.
  • Usage Notes:​ Confirm 24 VDC vs 48 VDC field side wiring; do not exceed 1500 VAC isolation rating.
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