Emerson VE4002S1T2B1

Product Name:​ DeltaV M-series Traditional I/O — 8-Channel Discrete Output (DO) Card, 24 V DC High-Side, Isolated
Product Overview:​ The VE4002S1T2B1 is a discrete output interface module within the Emerson DeltaV distributed control system. It converts digital control signals from the DeltaV controller into 24 V DC high-side (source) output to drive field actuators. It ships configured with a redundant standard I/O termination block.
Category:
Description
Technical Specifications:
Parameter
Specification
Channels
8 isolated discrete output channels
Output Type
24 V DC high-side (source) switching
Max Current per Channel
0.5 A continuous
Electrical Isolation
Channel-to-backplane ≥ 1500 V RMS
Termination Block
Redundant standard I/O termination block (VE4002S1T2B1 kit)
Wiring
Spring-cage screw terminals, 0.5–2.5 mm² conductors
Mounting
Standard DeltaV M-series I/O carrier
Operating Temperature
–40 °C to +70 °C
Protection Rating
IP20 (for installation inside a control cabinet)
Hot-Swap
Supported
Functional Features:
  • High-side switching​ eliminates the need for negative-side (ground) switching in field wiring.
  • Channel-to-bus isolation​ prevents high-voltage transients from propagating into the controller backplane.
  • Short-circuit protection​ on each channel with automatic recovery.
  • Fail-safe behavior​ is software-configurable (hold last state / force off) on controller communication loss.
  • Per-channel LED status indicators​ for rapid visual diagnostics.
Application Scenarios:
  • Driving 24 V DC solenoids, relay coils, and valve actuators.
  • Control of alarm annunciators, indicator lamps, and motor starter auxiliary circuits.
  • Discrete interlocking and sequencing in process automation.
Installation Requirements:
  • Install into a compatible DeltaV M-series I/O carrier with 24 V DC field power available.
  • Use only the matched redundant standard termination block supplied with the module.
  • Verify field load current does not exceed 0.5 A per channel.
  • Follow ESD-safe handling procedures.
Usage Notes:
  • De-energize field loads before hot-swapping to avoid inductive kickback.
  • Confirm output state configuration in DeltaV engineering software before placing the channel in service.
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