VE4070 | Emerson DeltaV LocalBus Isolator for I/O Modules

Emerson DeltaV VE4070 LocalBus Isolator and Carrier Module

The VE4070 (Model: VE4070) is a fundamental infrastructure component of the Emerson DeltaV™ Distributed Control System (DCS). Operating as a dual-function LocalBus Isolator and Carrier Board, this module is essential for maintaining the electrical and mechanical integrity of the I/O subsystem. It provides a physical mounting interface for I/O modules while simultaneously establishing a galvanic isolation barrier. This barrier protects the central controller’s local bus from field-side electrical noise, voltage transients, and ground loops that are prevalent in heavy industrial environments. By isolating the communication signals, the VE4070 prevents localized faults from propagating through the entire rack, ensuring continuous system uptime and data accuracy.

Detailed Technical Specifications

The VE4070 (Model: VE4070) is engineered for high-density DIN-rail or rack-mount configurations within the DeltaV ecosystem.

• Manufacturer: Emerson Automation Solutions

• Model Number: VE4070

• Product Type: LocalBus Isolator and Carrier Module

• System Compatibility: Emerson DeltaV™ DCS (M-Series / S-Series)

• Primary Function: Local bus communication isolation and mechanical module support

• Isolation Type: Galvanic isolation between controller bus and I/O logic

• Power Input: 24 VDC nominal (provided via the system backplane)

• Power Consumption: Nominal (passive isolation circuitry)

• Mounting: Horizontal or Vertical Carrier integration

• Dimensions: 165 mm x 84 mm x 31 mm

• Weight: 0.3kg (Module weight) / 0.35 kg (Shipping weight)

• Operating Temperature: 0°C to +60°C

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 5–95% 

• Vibration/Shock Resistance: Industrial grade for cabinet mounting