ABB DSDI110AV1 3BSE018295R1 Digital Input Board 32

Input Channels: 8 independent digital inputs supporting dry contact or DC 24V wet contact signals (Logic "1": 11-30V DC, Logic "0": 0-5V DC).

Electrical Isolation: Each channel is optocoupler-isolated from the system with isolation voltage ≥500V AC to prevent external interference from affecting the controller.

Filter Function: Built-in hardware filtering (configurable 0.2ms-32ms) eliminates signal jitter, ensuring input stability.

LED Indicators: Each channel has a corresponding status indicator (ON indicates valid input signal), and the module top features POWER and FAULT indicators for real-time operation status display.

Fault Diagnosis: Supports channel-level fault detection (e.g., open circuit, short circuit), with fault information transmitted to the controller via the bus for quick problem location.

Communication Interface: Communicates with the controller through the S800 I/O backplane, supporting parameter configuration (e.g., input filtering time, signal polarity) via ABB Control Builder software.

Hot-Swap Support: Enables module replacement without powering off, reducing system downtime and suitable for continuous operation scenarios.

Installation Methods:

Environmental Requirements: Keep away from strong electromagnetic sources (e.g., frequency converters, transformers), working humidity ≤95% (no condensation), reserve ≥10mm heat dissipation spacing.

Power Supply Wiring: Use 1.5mm2 shielded cables to connect 24V DC power (+24V/GND) with correct polarity, recommend a series 1A fuse.

Input Signal Wiring:

Grounding: Connect the module grounding terminal to the system grounding bus (ground resistance ≤10Ω) to reduce electromagnetic interference.

Hardware Check: Ensure the module is firmly installed, power and input wiring have no short circuits, and COM terminals are correctly connected.

Software Configuration: Add the module model (DSDI110AV1) in ABB Control Builder, configure input filtering time and signal type, and assign I/O addresses (e.g., %I0.0-%I0.7).

Function Test: Manually trigger input signals (e.g., press buttons), observe whether the corresponding channel LED indicators light up, and read input status via the controller to confirm consistency with actual conditions.

POWER: Steady on → normal power supply; off → check power wiring or fuse.

FAULT: Off → normal operation; steady on → module fault (possible internal circuit anomaly or wiring error), requiring power cycle or module replacement.

Channel LED: Steady on → valid input signal; off → no input signal or open circuit (check if contacts are closed, cables are damaged).

Common Faults:

Manufacturing Production Lines: Collect limit switch and photoelectric sensor signals to control conveyor start/stop or workpiece positioning, such as material sorting in automotive assembly lines.

Power Systems: Monitor the on/off status of circuit breakers and disconnectors, connect to PLC for substation automation monitoring.

Process Automation: Detect level switch and pressure switch signals in chemical reactors, interlock with control systems for safety.

Building Automation: Collect access control switch and fire button signals, connect to BA systems for security and fire protection interlocking.