Emerson VE4001S2T1 Discrete Input Card

The Emerson VE4001S2T1 Discrete Input Card is a high-performance digital I/O module engineered for industrial automation and critical process control applications. Designed to capture discrete (on/off) field signals from equipment such as limit switches, push buttons, alarms, and relay contacts, it provides fast, reliable data acquisition for Emerson’s DeltaV™ and Ovation™ distributed control systems. The card’s rugged construction, high isolation, and hot-swappable capability make it ideal for continuous operations in power generation, oil & gas, chemical processing, and other mission-critical environments.

Product Parameters

Applications

• Process Automation – Interfaces with field switches and interlocks in chemical, petrochemical, and pharmaceutical plants.

• Power Generation – Monitors turbine status signals, boiler safety contacts, and auxiliary equipment alarms.

• Oil & Gas – Captures discrete signals from drilling rigs, pipeline monitoring systems, and production platforms.

• Water & Wastewater – Integrates pump station alarms, gate positions, and treatment plant status signals.

• Manufacturing – Detects machine states, conveyor operations, and robotic cell triggers.

• Building Automation – Provides on/off input monitoring for HVAC, lighting, and fire protection systems.

Advantages

• High Channel Density – Sixteen isolated inputs reduce cabinet footprint while maximizing I/O capacity.

• Fast Response – Typical <5 ms input recognition supports critical control and shutdown functions.

• Robust Isolation – 1500 V RMS channel-to-bus isolation safeguards against ground loops and noise.

• Redundant Communication – Dual DeltaV™ I/O bus ensures uninterrupted data transfer.

• Wide Operating Range – Performs reliably from –20 °C to +60 °C in demanding environments.

• Low Power Draw – Consumes only 6 W, optimizing energy use and reducing heat.

• Hot-Swappable – Enables maintenance or replacement without halting system operations.

FAQ

1. What type of discrete signals does the VE4001S2T1 accept?

   It accepts dry contact closures or voltage inputs within 18–32 VDC, suitable for a variety of field devices and relay contacts.

2. How many input channels are available on this card?

   The module provides 16 fully isolated channels, each individually configurable for different signal types.

3. What is the typical input response time?

   Input changes are detected in less than 5 milliseconds, enabling real-time control and fast shutdown actions.

4. Does the module support redundant communications?

   Yes, it connects via a redundant DeltaV™ I/O bus to maintain data integrity even if one communication path fails.

5. How is electrical isolation implemented?

   Each channel features 1500 V RMS isolation from the I/O bus, protecting the system from ground loops and electrical interference.

6. Is the VE4001S2T1 hot-swappable?

   Yes, it can be inserted or removed without shutting down the control system, simplifying maintenance.

7. What is the maximum power consumption?

   The card consumes a maximum of 6 W at full load, ensuring efficient energy usage.

8. Is it certified for use in hazardous areas?

   It carries ATEX Zone 2, CE, UL, and CSA certifications, making it suitable for industrial hazardous environments.

9. What environmental conditions can it withstand?

   The module operates from –20 °C to +60 °C and can be stored at temperatures down to –40 °C.

10. Which control systems are compatible with this card?

    It integrates seamlessly with Emerson DeltaV™ and Ovation™ systems for process automation and distributed control.