ABB SPDSI14 Symphony Plus Digital Input Module

Description

The SPDSI14 module facilitates the seamless integration of digital field signals into the DCS environment. It is designed to monitor 16 independent channels, accepting inputs from sources such as limit switches, pushbuttons, and relay contacts. By converting these external voltage signals into logic-level data, the SPDSI14 enables controllers to make real-time operational decisions. This module features robust galvanic isolation and advanced filtering to maintain signal integrity in electrically noisy industrial settings, making it a critical component for power generation, water management, and heavy manufacturing applications.

Specifications

• Manufacturer: ABB

• Model Number: SPDSI14

• Product Series: Symphony Plus / Harmony

• Module Type: Digital Input (DI) Interface

• Number of Channels: 16 Isolated Channels

• Input Voltage: 24V DC / 48V DC (System dependent)

• Power Consumption: 125 mA @ 5V DC (Typical logic side)

• Operating Temperature: 0 to 70 degrees Celsius

• Form Factor: Standard Rack-mounted Plug-in Module

Features

• High-Level Isolation: Provides superior channel-to-system isolation to protect sensitive control logic from field-side surges and ground loops.

• Signal Conditioning: Built-in hardware filtering eliminates contact bounce and high-frequency interference for reliable state detection.

• Flexible Configuration: Supports various input voltage ranges through the use of compatible terminal units and field wiring options.

• Diagnostic Indicators: Equipped with front-panel LED status displays for each channel, allowing for rapid local troubleshooting.

• Hot-Swap Support: Engineered for high-availability environments, permitting module replacement without powering down the system rack.