Emerson VE4002S1T1B1

Emerson VE4002S1T1B1

Product Brief Introduction: VE4002S1T1B1 is Ovation DCS digital output module. It receives digital command from Ovation controller and drives relay contact output to control field solenoid valves, motor contactors and alarm devices. This module is installed in Ovation I/O rack for discrete on-off control.

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Description

Emerson VE4002S1T1B1

Technical Specifications

  • Signal type: Relay discrete digital output
  • Channel quantity: 16 channels
  • Output type: Relay dry contact
  • Contact rating: Specified resistive load capacity
  • Operating temperature: 0°C to +60°C
  • Storage temperature: -40°C to +85°C
  • Relative humidity: 5% to 95%, non-condensing
  • Mounting: Ovation standard rack backplane installation
  • Communication: Ovation rack backplane bus
  • Diagnostic function: Module self-diagnosis

Functional Features

  1. 16 independent relay dry contact output channels for field on-off control.
  2. Relay contact provides isolation between DCS logic and field power circuit.
  3. Built-in surge suppression for relay coil circuit.
  4. Support hot swap replacement in energized Ovation rack.
  5. Front panel LED for each channel to show relay on/off state.
  6. Power-up self-test and continuous background module self-test.
  7. Fault alarm signal upload to Ovation controller.

Application Scenarios Power plant auxiliary motor start/stop control, solenoid valve control, alarm horn control, chemical plant pump and valve discrete control.

Performance Parameters

  • Relay action response time: Less than 10ms
  • Contact mechanical lifespan: Rated switching cycles
  • Isolation voltage: 1500V AC

Material Composition

  • Front panel: Flame retardant printed plastic
  • PCB: FR-4 flame retardant substrate with conformal coating
  • Output device: Industrial signal relay
  • Surge suppression component: Varistor
  • LED indicator: Industrial LED
  • Backplane connector: Gold plated edge connector

Structural Characteristics Standard Ovation I/O card size. Rear gold plated edge connector inserts into rack backplane. Front panel fitted with extraction handle and channel LED indicators. Relay components are mounted on PCB, isolating field power circuit from DCS digital logic circuit.

Working Principle Ovation controller sends digital on-off command to VE4002S1T1B1 via rack backplane bus. Internal logic circuit drives relay coil to pull in or release relay contact. The dry contact switches field circuit to start or stop field equipment. The module feeds back module running status to Ovation controller.

Installation Requirements

  1. Insert VE4002S1T1B1 into rack guide rail and lock front handle.
  2. Connect field load wiring to relay contact terminals. Do not exceed relay contact rated capacity.
  3. Configure output logic in Ovation engineering workstation.
  4. Perform point-to-point functional test before commissioning.
  5. Separate field power wiring from DCS signal wiring.
  6. Ensure cabinet protective ground is reliable, grounding resistance less than 4 ohms.

Usage Precautions

  1. Do not exceed relay contact rated load. Overload will weld contact permanently.
  2. Inductive load must install surge absorption device across contact terminals.
  3. Hot swap operation must follow Ovation maintenance procedure.
  4. Do not touch gold plated connector pins.
  5. No field repairable components. Replace entire module on failure.
  6. Prevent metal debris falling into rack slot during installation.

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