Emerson VE5132 DeltaV Ovation Power Supply Redundancy Module

Configured for power decoupling and dual path execution in DeltaV and Ovation architectures, the Emerson VE5132 (VE5132 Bulk Power Supply Redundancy Module) provides direct physical/electrical execution. This module coordinates power delivery across dual independent feed lines to prevent system shutdown during primary supply failure. Utilizing active MOSFET switching architecture, the unit isolates redundant power buses, minimizes voltage drops, and prevents thermal accumulation across internal cabinet enclosures.

Hardware Specifications

Dual Path MOSFET Redundancy & Active Loop Decoupling

The module utilizes active MOSFET switching circuits instead of traditional Schottky diodes to decouple dual bulk DC feeds. This solid-state architecture significantly reduces internal voltage drop and thermal dissipation during high-current operation up to 40 A. Conformal coating compliant with ISA-S71.04-1985 G3 standards shields internal traces against airborne corrosive contaminants and high-humidity environment exposure. By maintaining continuous channel-to-channel isolation between independent power buses, the hardware prevents back-feeding during primary rail fault conditions and guarantees seamless power transfer across DeltaV and Ovation I/O nodes.

Frequently Asked Questions

Q: How does the active MOSFET architecture in the VE5132 improve thermal efficiency compared to diode-based ORing modules?

A: Active MOSFET technology drastically minimizes forward voltage drop during current conduction, reducing heat generation and power dissipation compared to traditional diode-based decoupling modules.

Q: What environmental protection standards does the VE5132 PCB assembly support?

A: The printed circuit board features conformal coating compliant with the ISA-S71.04-1985 G3 harsh environment standard, preventing corrosion from atmospheric chemical contaminants.

Q: What is the continuous current handling capacity for the redundant outputs?

A: The module supports continuous load distribution up to 40 A across dual independent power supply feeds.

Field Installation Guidelines

Mount the module vertically onto standard DIN rail assemblies inside sealed control cabinets. Ensure a clearance distance of at least 50 mm above and below the module housing to maintain unrestricted natural convection air circulation through the chassis slots.

De-energize all primary DC sources before connecting power wiring to the terminal blocks. Connect the incoming primary and secondary bulk power lines to the designated dual-input terminal channels. Route input and output conductors separately from AC power lines to prevent electromagnetic interference. Terminate cabinet chassis ground directly to the low-impedance ground busbar using short, stranded copper wire to ensure proper surge dissipation.