EMERSON VE4036P2 Replacement for DeltaV DCS Series

Product Overview

EMERSON VE4036P2 Replacement for DeltaV DCS Series: Smooth Migration & Legacy System Upgrade

The EMERSON VE4036P2 is a field-proven power supply module designed for the DeltaV Distributed Control System (DCS) platform. As legacy DeltaV installations age and original power supply modules approach end-of-life or become discontinued, plant engineers and procurement teams face increasing pressure to source reliable, drop-in replacements that preserve system integrity without triggering a full control system overhaul. The VE4036P2 addresses this need directly — offering a seamless upgrade path for facilities running older DeltaV Series hardware across refining, chemical, pharmaceutical, and power generation applications.

When migrating from an aging DeltaV power supply — such as a worn KJ1501X1-BA1 or a discontinued predecessor module — the VE4036P2 maintains the same 24 VDC output rail architecture and DIN-rail or chassis-mount footprint common across the DeltaV S-series controller cabinets. This means existing field wiring, terminal block assignments, and cabinet layout require minimal or no modification, dramatically reducing engineering hours and the risk of wiring errors during cutover. For sites operating under strict change-management protocols, this physical and electrical compatibility is a critical procurement criterion.

From a communications and system architecture standpoint, the VE4036P2 integrates without conflict into DeltaV controller nodes running MD, MD Plus, or SD-series controllers. It supplies stable, conditioned DC power to I/O subsystems including CHARM I/O cards, 8-channel analog input modules, and discrete output modules mounted in the same carrier or I/O enclosure. Plants that have standardized on FOUNDATION Fieldbus or HART-enabled field devices will find that the VE4036P2’s clean power output maintains the signal integrity required for these protocols — avoiding the ground loops and noise issues that can plague aging or undersized power supplies.

For facilities undertaking a phased DCS modernization — rather than a full rip-and-replace — the VE4036P2 is frequently deployed alongside DeltaV SIS logic solvers, VE4001S2T2B4 I/O terminal blocks, and KJ2201X1-BA1 redundant controller modules to extend the operational life of existing cabinets while progressively upgrading control nodes. This approach allows maintenance teams to replace the power supply during a planned shutdown window, validate output voltage and load regulation on the bench, and return the cabinet to service within a single shift — minimizing production downtime.

Installation space is a common concern in brownfield retrofits. The VE4036P2 conforms to the standard DeltaV power supply slot dimensions, making it compatible with existing DeltaV MD controller carriers and 8-slot I/O enclosures without requiring panel modifications or custom brackets. For sites where cabinet real estate is constrained, this form-factor compatibility eliminates the need for costly mechanical rework. Paired with a DeltaV redundant power supply module in a 1+1 redundancy configuration, the VE4036P2 supports continuous operation even during individual module servicing.

Procurement teams sourcing the VE4036P2 as a spare or emergency replacement will find that TOPNLMS maintains ready stock, enabling fast dispatch from our Xiamen warehouse. Each unit undergoes pre-shipment functional verification — including output voltage check, load regulation test, and visual inspection — before packaging. Units are shipped with anti-static protection and appropriate cushioning to meet international freight standards. Standard lead time for in-stock units is 3–7 business days to most destinations, with expedited options available for urgent plant shutdowns.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful DeltaV power supply migration rarely involves a single component. During the upgrade process, maintenance engineers typically audit adjacent modules in the same cabinet or controller node. Commonly replaced or upgraded alongside the VE4036P2 are the KJ2201X1-BA1 redundant controller module, which governs the control node’s processing and I/O scanning, and the VE4001S2T2B4 I/O terminal block, which interfaces field wiring to the DeltaV I/O subsystem. Where HART field devices are in use, the DeltaV CHARM CIOC card is often evaluated for concurrent replacement to modernize the I/O architecture.

For sites upgrading communication infrastructure, the DeltaV DeltaV-SE workstation and associated OPC DA/UA gateway modules may be reviewed in parallel. Power distribution within the cabinet is frequently improved by adding a DeltaV redundant power bus module or replacing aging 24 VDC DIN-rail power supplies from third-party vendors with EMERSON-certified units. Where signal isolation is required between legacy field devices and new DeltaV I/O cards, galvanic signal isolators and HART multiplexers are incorporated into the retrofit bill of materials. Programming cable sets compatible with DeltaV workstations are also recommended for on-site configuration verification after module swap.

Retrofit Guidance FAQ

Q: Does replacing the VE4036P2 require changes to field wiring?
A: No. The VE4036P2 uses the same terminal block interface and output voltage as the modules it replaces in standard DeltaV cabinets. Existing field wiring can remain connected during the swap, provided the cabinet is de-energized per site LOTO procedures.

Q: Is the VE4036P2 compatible with both HART and FOUNDATION Fieldbus I/O?
A: Yes. The module supplies clean 24 VDC power to the DeltaV I/O bus, which supports HART, FOUNDATION Fieldbus, and discrete I/O cards without modification to the communication configuration.

Q: Will the DeltaV controller require re-download after the power supply replacement?
A: In most cases, no. A power supply swap does not alter the controller’s configuration database. However, a controlled restart of the affected controller node is recommended to confirm all I/O modules re-initialize correctly.

Q: Can the VE4036P2 be used in a redundant power supply configuration?
A: Yes. The VE4036P2 supports 1+1 redundancy when paired with a second unit in the same carrier, providing continuous power to the I/O subsystem during individual module servicing or failure.

Q: What physical space is required for installation?
A: The VE4036P2 occupies the standard DeltaV power supply slot. No panel cutout modifications or additional mounting hardware are required for direct replacement installations.

Warranty Assurance

Every EMERSON VE4036P2 unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each module undergoes a documented pre-shipment inspection covering output voltage accuracy, load regulation performance, and physical condition. Units that do not meet specification are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period, subject to inspection of the returned module. Our after-sales response target is 24 hours for initial acknowledgment and 72 hours for resolution proposal. For urgent plant situations, expedited replacement dispatch is available upon request.

Buyers receive a shipment confirmation with tracking information, a packing list, and a test record upon dispatch. All units are packaged in anti-static bags with foam cushioning to prevent transit damage. TOPNLMS has supplied DeltaV replacement modules to industrial facilities across Asia, the Middle East, and Southeast Asia, with a documented on-time delivery rate for in-stock items.

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