Description
Emerson DeltaV VE5009 | 24/12 VDC Enhanced System Power Supply
Product Introduction
In a DeltaV cabinet, the power supply is not an accessory you can treat as interchangeable hardware. The Emerson DeltaV VE5009 is the M-series enhanced DC/DC system power supply intended to convert plant bulk DC power into the regulated system power required by the DeltaV architecture. Emerson documentation identifies VE5009 specifically as the 24/12-VDC Enhanced System Power Supply and rates one unit for up to 8.0 A of system power on supported horizontal I/O interface carriers.
The VE5009 supports both 12 VDC and 24 VDC input arrangements, making it useful in DeltaV installations where the available bulk-power architecture varies. It can be installed in specified M-series power/controller carriers and provides system/field power isolation when applicable to the installation. Emerson also documents it for certain PROVOX I/O and Zone 2 Remote I/O configurations, so the exact carrier, I/O architecture, and power calculation should be checked before substitution.
Key Technical Specifications
| Parameter | VE5009 Specification |
|---|---|
| Product Model | VE5009 |
| Manufacturer / Brand | Emerson DeltaV |
| Product Type | M-series enhanced DC/DC system power supply |
| System Function | DeltaV system power conversion |
| Input Power | 12 VDC or 24 VDC |
| 12 VDC Input | -4% / +5%; 14.8 A maximum |
| 24 VDC Input | ±20%; 6.1 A maximum |
| LocalBus Output Capacity | Up to 8.0 A |
| Primary Power Connection | 2-wire DC input |
| Power-Failure Alarm | 2-wire normally-open relay |
| Alarm Contact Rating | 2.0 A at 30 VDC; 2.0 A at 250 VAC |
| LED Indication | Green DC Power; Red Error |
| Operating Temperature | -40 to +60°C without derating; +60 to +70°C with derating |
| Storage Temperature | -40 to +70°C |
| Relative Humidity | 5–95%, non-condensing |
| Vibration | 1 mm peak-to-peak, 5–16 Hz; 0.5 g, 16–150 Hz |
| Shock | 10 g, ½-sine, 11 ms |
| Mounting | 2-wide power/controller carrier, VerticalPlus 4-wide power slot, or 4-wide power carrier |
| Hazardous Area | FM Class I Div. 2 and Zone 2 approvals are documented for the enhanced M-series supply |
| Marine Certification | -specific IACS E10 and DNV-GL/ABS certification references are documented |
| Final Assembly Reference | 12P3935 |
The input ratings, 8 A system-power capacity, mounting positions, alarm contact, environmental limits, and certification information are taken from DeltaV M-series power-supply documentation.
Major Features and Advantages
1. Designed for DeltaV M-series power architecture
is specifically designed as an M-series system power supply. It is not simply a generic 24 VDC-to-12 VDC converter. Its mounting, alarm interface, power capacity, and system integration are tied to the DeltaV carrier architecture. This distinction matters when replacing an aging supply in an operating DCS cabinet.
VE5009
2. Supports both 12 VDC and 24 VDC bulk power
A major practical feature is its support for both 12 VDC and 24 VDC input configurations. Emerson introduced as an enhanced supply capable of replacing the earlier VE5008 in applicable installations without requiring the same bulk-power recalculation solely because of the supply change. If additional I/O cards are being added at the same time, however, the upstream bulk supply still needs to be checked against the increased load.
3. Up to 8 A of LocalBus system power
The published 8.0 A capacity is important when calculating the load presented by DeltaV I/O interface carriers. This is a system-power rating, not a claim that every installation can simply draw 8 A regardless of carrier or configuration. Emerson specifically directs users to the DeltaV hardware installation documentation for system-power calculations and additional I/O power injection requirements.
4. Built-in power-status diagnostics
The front-panel LEDs provide basic power-status information. Green indicates that DC input power is present and the internal fuse/diode path is functioning; red indicates that the +5 VDC and +3.3 VDC outputs are outside their specified tolerance. The supply also includes a normally-open alarm relay that closes when those outputs are within ±4% of nominal.
5. Useful for demanding cabinet environments
The documented operating range extends from -40°C to +60°C at full rating, with derating above +60°C through +70°C. Hazardous-location certifications are also documented, including FM Class I Division 2 and Zone 2 certifications. is specifically listed with marine certification references in later DeltaV documentation, which can matter for marine and offshore procurement.
Application Scenarios & Field Pain Points
- DeltaV M-series DCS cabinets: Used as the system power source for supported M-series carriers and associated control/I/O hardware.
- PROVOX migration projects: Emerson documentation specifies as the system power supply for certain DeltaV-to-PROVOX I/O interface configurations.
- Zone 2 remote I/O: Emerson specifies for M-series Zone 2 Remote I/O installations requiring a dedicated system power supply.
- VE5008 replacement projects: was designed as an enhanced successor within the M-series power-supply architecture, but the complete carrier and bulk-power arrangement still needs to be checked.
Field note: If a DeltaV cabinet begins reporting power-related controller or I/O faults, do not immediately assume the itself has failed. Check the incoming 12/24 VDC source, connector condition, cabinet voltage drop, load calculation, alarm relay state, and the +5/+3.3 V diagnostic indication first.
Related Products
- VE5008 — Earlier M-series DC/DC system power supply; relevant when assessing legacy installations and replacement history.
- VE5109 — Related M-series DC/DC system power-supply model; verify the required variant before substitution.
- VE3008 — DeltaV MQ controller used in M-series architectures and certain PROVOX migration configurations.
- VE3007 — DeltaV MX controller used with compatible M-series migration architectures.
- VE3006 — DeltaV MD Plus controller used in earlier M-series/PROVOX interface configurations.
- VE4056 / KJ2101X1-CA1 — PROVOX I/O carrier used in the DeltaV PROVOX interface architecture.
- VE4018R11 / KJ2101X1-BA1 — PROVOX I/O interface associated with the migration solution.
The Emerson PROVOX interface documentation specifically identifies VE3008/VE3007, VE4056, VE4018R11, and as components of the relevant migration architecture.
Engineer’s Guide — Field Pitfalls to Avoid
1. Do not treat as a generic 24 VDC power supply
The published input ratings can make look like an ordinary DC/DC converter. It is not. Its mounting, output architecture, alarm circuit, and LocalBus capacity are intended for DeltaV M-series hardware.
2. Check the carrier before ordering
Emerson documents several permitted mounting positions, including the 2-wide power/controller carrier and 4-wide carrier arrangements. A physically similar supply does not automatically have the same carrier compatibility.
3. Verify the bulk-power calculation
An 8 A LocalBus rating does not mean the upstream plant DC supply can be ignored. When I/O is added, Emerson specifically recommends checking whether the bulk supply can handle the additional demand.
4. Check the exact assembly identification
is associated with final assembly P/N 12P3935 in Emerson documentation. Procurement records may also contain additional assembly or component identifiers. Match the physical label and complete part information against the installed DeltaV configuration rather than ordering from a shortened description alone.
5. Do not assume every has identical certification markings
The DeltaV documentation states that certifications are available for the enhanced DC/DC supply and directs users to the actual certificates and product markings for exact certification status. For hazardous-area work, verify the marking on the actual unit and the applicable installation documentation.
FAQ
Is Emerson a controller?
No. is a DeltaV M-series enhanced DC/DC system power supply. It supplies the system power required by compatible DeltaV carrier and I/O arrangements.
What input voltage does use?
supports both 12 VDC and 24 VDC bulk DC input. Published documentation specifies 12 VDC input at -4%/+5% and 24 VDC input at ±20%.
How much system power can provide?
Emerson documentation specifies up to 8.0 A from one system power supply for supported horizontal I/O interface carriers. Actual system loading must still be calculated from the installed hardware.
Can replace VE5008?
was designed as an enhanced M-series supply and Emerson documentation states that it can replace VE5008 in applicable installations without requiring a bulk-power recalculation solely due to the efficiency difference. That does not mean every installation is automatically interchangeable; carrier type, wiring, load, and certification requirements must be checked.
Is used with PROVOX I/O migration?
Yes. Emerson documentation specifically lists as the DeltaV system power supply for the documented PROVOX I/O interface solution. The same documentation identifies compatible controller and carrier components and specifies software prerequisites for the migration architecture.
Is suitable for hazardous-area applications?
The DeltaV documentation lists hazardous-location certification options including FM Class I Division 2 and Zone 2 certifications for the enhanced M-series DC/DC system power supply. The exact certification must be verified from the unit’s marking and applicable certificate before installation.
What should procurement verify before buying a ?
Confirm the complete part number/assembly identification, carrier compatibility, input-voltage arrangement, certification marking, physical condition, and actual test status. For a running DCS, I would also compare the installed unit’s label against the cabinet drawings and DeltaV hardware configuration before treating another variant or assembly number as a drop-in replacement.
