The Emerson VE4001S2T2 (KJ3001X1-BB1) is a DeltaV Series 2 discrete input module designed to acquire and process 24 V DC digital signals from field devices in industrial automation systems. It is commonly used for monitoring ON/OFF status signals such as switches, relays, interlocks, alarms, and safety contacts within distributed control systems (DCS).
Engineered for high reliability and stable operation, this module is widely deployed in continuous process industries where fast signal response and electrical isolation are essential for safe plant operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson |
| Model | VE4001S2T2 (KJ3001X1-BB1) |
| Product Type | Discrete Input Module (DI) |
| System Platform | DeltaV Series 2 I/O |
| Input Channels | 8 channels |
| Input Type | 24 V DC dry contact / digital input |
| Field Circuit Rating | 24 V DC, ~5 mA/channel |
| LocalBus Power | 12 V DC, 100 mA |
| Signal Function | ON/OFF status monitoring |
| Response Time | ≤ 1 ms (typical) |
| Isolation | Optical / galvanic isolation architecture |
| Diagnostics | Channel-level status & fault detection |
| Mounting Type | DeltaV I/O carrier mounted |
| Terminal Keying | B2 configuration system |
| Operating Temperature | 0°C to 60°C (typical reference range) |
| Humidity Range | 5% to 95% non-condensing |
Physical Dimensions & Weight
| Parameter | Specification |
|---|---|
| Dimensions (H × W × D) | 105 × 125 × 42 mm (typical Series 2 module form factor) |
| Weight | Approx. 0.16–0.50 kg (varies by revision/source) |
System Integration & Recommended Related Modules
The VE4001S2T2 KJ3001X1-BB1 is commonly used within Emerson DeltaV systems alongside:
- Emerson VE3006 MD Plus Controller Module
- Emerson VE3008 MQ Controller Module
- Emerson VE4003S2B1 Analog Input Module
- Emerson VE4005S2B1 Analog Output Module
- Emerson VE4033S2B1 Redundant Input Module
- Emerson SE4053S2B11 Analog Input Plus Card
- Emerson SE4055S2B5 Analog Output Plus Card
- Emerson SE4083S2B11 Redundant Input Module
- Emerson SE4082S1T2B8 Digital Output Module
These modules together support scalable and reliable distributed control system architectures.
Common Emerson DeltaV Discrete Input Modules
Frequently used related modules include:
- VE4001S2T1 / T1B1 / T1B2 variants
- VE4001S2T2 / T2B1 / T2B2 series
- SE4083S2B11 redundant DI modules
- Series 2 DeltaV high-density I/O cards
