ABB DI650 3BHT3000025R1 Digital Input Modules

The ABB DI650 3BHT3000025R1 is a high-performance digital input module used in ABB Freelance Distributed Control Systems (DCS). Designed for industrial automation environments, the DI650 provides 32 channels of 48 V DC digital input, offering real-time detection of binary states from field devices such as switches, sensors, and limit contacts. Its high input voltage range makes it particularly suitable for demanding applications requiring robust signal integrity in noisy environments.

Key Features

• 32 digital input channels with 48 V DC operating voltage

• Isolated channels for enhanced system protection

• Fast and reliable signal acquisition for binary field data

• Built-in diagnostic LEDs for each input point

• Compatible with ABB Freelance and Symphony Plus control systems

• Compact footprint for space-saving installations

• Designed to meet industrial EMC and temperature requirements

• Pluggable terminals for simplified field wiring and maintenance

Technical Specifications

Industry Applications

The DI650 module is widely deployed in industries where higher-voltage digital signal acquisition is necessary for reliable monitoring and control:

• Oil & Gas – Monitoring of remote signals in substations and field junction boxes

• Power & Energy – High-voltage breaker status and interlock signal acquisition

• Chemical Processing – Binary condition monitoring in hazardous environments

• Steel & Mining – Robust input capture in heavy-duty plant operations

• Water & Wastewater – State monitoring of pumps, blowers, and relay circuits

• Rail & Infrastructure – Digital interfacing in transportation and signaling systems

Product Advantages

• High Voltage Tolerance – Designed for stable operation at 48 V DC input

• Scalable System Integration – 32-channel density for compact signal acquisition

• Field-Friendly Design – Clear signal status via LEDs, reducing commissioning time

• Fault Diagnostics – Immediate feedback on channel health and operational issues

• EMC Compliance – Reliable operation in environments with electromagnetic interference

• ABB Lifecycle Support – Ensures availability of updates, spares, and global service

Frequently Asked Questions (FAQ)

1. What is the purpose of the DI650 module?

   It captures the digital ON/OFF status of field devices and relays this information to the DCS.

2. What type of voltage input does it support?

   The module supports 48 V DC nominal input, with a working range of 36 to 60 V DC.

3. Can the module detect both sink and source signals?

   Yes, it is configurable for both sinking and sourcing input logic.

4. Is it compatible with the ABB Freelance system?

   Yes, the DI650 is fully compatible with ABB Freelance and Symphony Plus control systems.

5. Are the channels isolated from each other?

   Yes, each input channel is galvanically isolated to prevent cross-talk and signal faults.

6. Does it include diagnostics features?

   Yes, it provides per-channel diagnostics and overload protection.

7. How many input channels does it support?

   The DI650 offers 32 individual input channels.

8. What is the typical response time?

   Less than 5 milliseconds.

9. Can the module be installed with other ABB modules?

   Yes, it fits standard ABB Freelance module racks and terminal units.

10. What is the benefit of using this module over 24 V DC models?

    It offers better signal immunity and longer signal transmission range in noisy environments.