Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | VE4002S2T2B8 |
| Brand | Emerson |
| Origin | United States |
| Product Type | 32-Channel Discrete Output Card |
| Module Type | DeltaV Series 2 Plus DO Module |
| Output Type | High-Side Switching Discrete Output |
| Number of Channels | 32 Channels |
| Output Voltage | 24 VDC |
| Output Current | Up to 1.0 A per channel, 3.0 A maximum total card current |
| Off-State Leakage Current | 1.2 mA maximum |
| Isolation | Optical isolation, 1500 VDC test limit per channel |
| LocalBus Current Draw | 100 mA typical, 150 mA maximum at 12 VDC |
| Field Circuit Power | 3.0 A maximum at 24 VDC |
| Operating Temp | -40 deg C to 70 deg C |
| Storage Temp | -40 deg C to 85 deg C |
| Relative Humidity | 5% to 95% non-condensing |
| Enclosure Protection | IP20 |
| Dimensions | 4.1 cm x 12.5 cm x 10.5 cm |
| Weight | 0.65 kg |
| Power Consumption | 100 mA typical LocalBus current at 12 VDC |
DeltaV Process Control Signal Isolation and Output Execution
The VE4002S2T2B8 applies high-side switching technology to control 24 VDC field loads. Therefore, the module switches the positive supply line while maintaining separation between field circuits and internal DeltaV logic.
The module uses optical isolation for each output channel to reduce electrical interference transfer. Additionally, the design supports discrete control operations for valves, solenoids, actuators, and status indicators connected through DeltaV Series 2 terminal assemblies.
For Emerson DeltaV applications, channel-to-channel isolation and protected output switching provide controlled interaction between the DCS I/O subsystem and external field wiring. The module architecture follows process automation requirements for discrete signal handling, fault protection, and distributed I/O installation.
Frequently Asked Questions
Q: Does the VE4002S2T2B8 support direct switching of 24 VDC field devices?
A: Yes. The module provides 32 discrete output channels using 24 VDC high-side switching for compatible field loads.
Q: What protection functions are integrated into the VE4002S2T2B8 output channels?
A: The module includes thermal protection and short-circuit protection features to limit damage from output load faults.
Q: What DeltaV system interface does this module use?
A: The VE4002S2T2B8 connects to the DeltaV Series 2 Plus I/O architecture through the LocalBus interface and compatible terminal blocks.
Field Installation Guidelines
- Install the VE4002S2T2B8 in a compatible DeltaV Series 2 Plus I/O carrier assembly according to Emerson installation documentation.
- Verify field wiring polarity before energizing 24 VDC output circuits.
- Separate discrete output wiring from high-voltage AC conductors to reduce electromagnetic interference.
- Connect cable shields according to site grounding standards when shielded field cables are used.
- Confirm the load current requirements before connecting actuators or solenoid devices to each output channel.
- Inspect terminal block connections for correct mechanical engagement before system startup.
- Follow DeltaV engineering procedures when replacing or removing installed I/O modules.
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