ABB CS31ICSO16N1
ABB CS31ICSO16N1 - Image 2

ABB CS31ICSO16N1

Product Brief:​ The ICSO16N1 is a high-density digital output module providing sixteen electrically isolated 24 V DC sourcing (PNP) transistor outputs, each rated 0.5 A. It interfaces between the CS31 bus / AC 800M controller and field actuators such as solenoid valves, contactor coils, pilot lights, and motor starters. The module is hot-swappable in S800 I/O stations.

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Category: SKU: ABB CS31ICSO16N1

Description

ABB CS31ICSO16N1

  • Technical Specifications:
    • Output Type: Solid-state sourcing (PNP, supplies +24 V to load)
    • Number of Channels: 16 (grouped typically in two groups of 8 with common +24 V per group)
    • Nominal Output Voltage: 24 V DC (compatible 20.4–28.8 V DC)
    • Output Current: 0.5 A per channel continuous; total max 8 A per group (varies by ambient)
    • Turn-on/off Time: <1 ms typical
    • Isolation: Optical isolation between logic side and field side (≥1500 V AC test)
    • Short-Circuit Protection: Per-channel electronic current limiting with automatic recovery
    • Diagnostics: Channel LED (yellow ON = output active), module error LED (red)
    • Power Dissipation: Max ≈6 W (fully loaded)
    • Mounting: On S800 I/O terminal unit (TU810/TU812 etc.) or CS31 base; 35 mm DIN rail
    • Operating Temp.: 0 °C to +60 °C (some –25 °C start-up)
  • Functional Features:
    • Individual channel status LEDs for rapid troubleshooting
    • Built-in inductive load suppression (free-wheeling diode equivalent in output stage)
    • Group common terminals simplify field wiring
    • Hot-swap capable when I/O station configured for it
    • Returns open-load / short-circuit status to controller for alarm generation
  • Application Scenarios:
    • Controlling 24 V DC solenoid valves on pneumatic/hydraulic actuators
    • Driving motor starter contactor coils, indicator beacons, stack lights
    • Conveyor divert gates, sorting arm actuators in packaging lines
    • Pump start/stop via interposing relay or contactor
  • Material & Structure:
    • Housing: Flame-retardant polycarbonate/ABS with transparent status window
    • Terminals: Screw or spring-cage (depends on TU); gold-plated contacts inside
    • Heatsink: Internal copper plane; adequate cabinet ventilation required
  • Working Principle:

    The module receives a digital output image bit from the controller via the I/O bus. An opto-isolator drives a power MOSFET (PNP source) which connects the channel’s +24 V common to the field device terminal. When the bit is ‘1’, the MOSFET turns on, supplying 24 V DC to the load; when ‘0’, it turns off. Short-circuit is sensed by measuring voltage drop across the MOSFET — if exceeded, the channel latches off and reports a fault until cleared.

  • Installation Requirements:
    • Plug module into S800 terminal unit ensuring code-key alignment
    • Wire +24 V DC supply to group common terminals; verify polarity
    • Use appropriate wire gauge (typically 0.5–1.5 mm²) torqued to spec (≈0.5–0.6 N·m)
    • Connect field device between output terminal and 0 V (DC return)
  • Precautions:
    • Total group current must not exceed module rating — observe derating at high ambient (>55 °C)
    • For highly inductive AC loads (not directly driven), use interposing relay with snubber
    • Do NOT connect output channels to AC voltage — module is DC-only and will be destroyed
    • Verify load current does not exceed 0.5 A/channel; fused or protected field supply recommended

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