Emerson VE4001S2T2B3 | Industrial 32-Channel Isolated Input Module for DCS

Product Description

The Emerson VE4001S2T2B3 (KJ3201X1-BA1+KJ4001X1-CE1) is a 32-channel discrete input module for DeltaV™ Series 2 distributed control systems (DCS). It connects binary field devices such as pushbuttons, limit switches, proximity sensors, and dry contacts to the DeltaV system.

Moreover, each input channel features optical isolation, providing robust protection against electrical interference while ensuring safe and reliable signal acquisition. In addition, built-in diagnostics detect open circuits, short circuits, and module faults, supporting predictive maintenance and minimizing downtime.

The VE4001S2T2B3 is part of the DeltaV Series 2 I/O family, engineered for rugged industrial environments. Its hot-swappable design allows flexible installation and rapid replacement without system shutdown, making it ideal for oil & gas, chemical, power generation, and manufacturing industries.

Technical Specifications

• Product Type: Discrete Input Module

• Model Number: VE4001S2T2B3

• Manufacturer: Emerson

• System: DeltaV™ Series 2 I/O

• Channels: 32 discrete inputs

• Input Signal Type: 24 V DC (IEC 61131-2 Type 1/2/3 compatible)

• Input Current per Channel: 2–4 mA typical

• Isolation: Optical per channel, withstands 250 V AC

• Diagnostics: Built-in open circuit, short circuit, and module fault detection

• Local Bus Power: 12 V DC at ~150 mA

• Field Power (per card): 24 V DC at ~3.2 A

• Operating Temperature: –40 °C to +70 °C

• Humidity: 5–95 % non-condensing

• Airborne Contaminants: ISA-S71.04 Class G3 compliant

• Shock Resistance: 10 g, ½ sinewave for 11 ms

• Vibration Resistance: 1 mm peak-to-peak (2–13.2 Hz), 0.7 g (13.2–150 Hz)

• Protection Rating: IP20

• Certifications: ATEX II 3G Ex nA IIC Gc, IECEx FMG, FM approvals

• Mounting: Compact card format for DeltaV carriers

• Lifecycle: Active product, supported in DeltaV systems