Emerson VE4002S1T2B2

Emerson VE4002S1T2B2

Product Brief Introduction: VE4002S1T2B2 is Ovation DCS digital output relay module. It receives logic command from Ovation controller and generates relay dry contact output to drive field solenoid valves, motor contactors and warning devices. This I/O card is mounted inside Ovation rack for plant discrete on-off control.

Request Quote
Category:

Description

Emerson VE4002S1T2B2

Technical Specifications

  • Signal type: Relay dry contact digital output
  • Channel quantity: 16 channels
  • Output type: Relay contact
  • 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: Continuous module self-diagnosis

Functional Features

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

Application Scenarios Power plant boiler auxiliary control, chemical process valve on-off control, solenoid valve actuation, local alarm horn control.

Performance Parameters

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

Material Composition

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

Structural Characteristics Standard Ovation I/O card form factor. Rear gold plated edge connector inserts into rack backplane. Front panel fitted with extraction handle and array of channel LED lights. Relay components isolate field high power circuit from DCS low voltage digital circuit.

Working Principle Ovation controller sends digital logic command to VE4002S1T2B2 through rack backplane bus. The internal logic circuit controls relay coil power supply. Relay contact closes or opens to switch field load circuit. The module runs continuous self-check and transmits fault information to Ovation controller once abnormality detected.

Installation Requirements

  1. Insert VE4002S1T2B2 along rack guide rail and lock front panel handle.
  2. Connect field load wiring to relay contact terminals. Load must stay within relay contact rated capacity.
  3. Configure control logic in Ovation engineering workstation.
  4. Carry out point functional test before commissioning.
  5. Separate field power wiring from DCS signal wiring.
  6. Cabinet protective ground must be reliable, grounding resistance less than 4 ohms.

Usage Precautions

  1. Do not connect load exceeding relay contact rated capacity. Overload permanently welds relay contact.
  2. Inductive load must install surge absorber at contact terminals.
  3. Hot swap operation must follow Ovation official maintenance procedure.
  4. Do not touch gold plated connector pins by hand.
  5. No field repairable components. Replace full module when failure occurs.
  6. Prevent metal debris falling into rack slot during installation.

Related products