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- VE5003
- Power Supply
- USA
- 393.7 × 63.5 × 127 mm
- 2.63 kg
- Xiamen, China
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Product Overview
The Emerson VE5003 DeltaV Bulk AC to 24 VDC Power Supply converts AC input power into a 24 VDC supply for industrial automation equipment. In a DeltaV control installation, a bulk power supply serves as an upstream source for compatible control-system power distribution, rather than acting as an individual signal-processing module.
It is typically used in control cabinets where distributed control hardware, interface equipment, and associated DC-powered devices require a common 24 VDC source. The supply must be selected according to the AC source, total connected load, wiring arrangement, and power requirements of the equipment being supplied.
In a process plant, for example, a 24 VDC supply may feed compatible instrumentation interfaces, control-system accessories, or downstream DC distribution equipment. The specific load arrangement depends on the cabinet design and the electrical requirements of the installed DeltaV system.
The VE5003 belongs to the Emerson DeltaV power-supply product family. When installing or replacing the unit, confirm the exact model, input requirements, output capacity, grounding arrangement, and compatibility with the intended power-distribution architecture.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson |
| Model | VE5003 |
| Product Family | DeltaV |
| Product Type | Bulk AC to 24 VDC Power Supply |
| Output Voltage | 24 VDC |
| Input Type | AC |
| Primary Function | Converts AC input power to 24 VDC |
| Dimensions | 393.7 × 63.5 × 127 mm |
| Weight | 2.63 kg |
Product Features
- AC-to-DC conversion: Converts AC input power into a 24 VDC output for compatible industrial equipment.
- Bulk power supply function: Serves as an upstream DC source within a control cabinet or automation power-distribution arrangement.
- DeltaV system application: Intended for use in industrial automation installations associated with Emerson DeltaV equipment.
- Centralized DC distribution: Can supply compatible downstream devices through an appropriately rated distribution arrangement.
- Cabinet integration: Can be incorporated into industrial control-panel layouts with suitable mounting, wiring, and ventilation.
- System-level power planning: Allows the 24 VDC load to be considered as part of the overall cabinet power budget.
Working Principle
The VE5003 receives AC power at its input and converts it into a 24 VDC output for connected equipment.
AC Input → VE5003 → 24 VDC Output → DC Distribution → Compatible Loads
The connected load draws current from the DC output according to its operating requirements. The supply must therefore be sized for the combined load, including any equipment that may start simultaneously or experience temporary increases in demand.
In a control cabinet, the 24 VDC output may feed a distribution terminal block or another suitable DC distribution assembly. Individual branch circuits then supply compatible devices. Correct circuit protection, grounding, wire sizing, and load separation are important for maintaining stable operation and limiting the effect of a fault on one branch.
The VE5003 provides the conversion stage; the cabinet’s distribution design determines how the 24 VDC output reaches the individual loads.
Role in a DeltaV Control System Power Architecture
The VE5003 functions as a bulk DC power source within an industrial automation installation. It is distinct from a controller or I/O module: its primary task is to supply electrical power rather than execute control logic or acquire process signals.
AC Distribution → VE5003 → 24 VDC Distribution → Compatible Control-System Loads
| System Element | Function |
|---|---|
| AC Distribution | Supplies the AC input to the power supply |
| VE5003 Power Supply | Converts AC input into 24 VDC |
| DC Distribution Terminals | Divide the DC output into appropriately protected branch circuits |
| Control-System Accessories | Receive DC power according to their electrical requirements |
| Field Interface Equipment | Uses the distributed DC supply where compatible |
| Protective Devices | Provide branch-circuit protection appropriate to the installation |
| Grounding System | Establishes the required protective-earth connections |
| DeltaV Control Equipment | Performs control and I/O functions using its specified power arrangement |
The actual architecture depends on the equipment connected to the 24 VDC source and the power requirements of each device. The VE5003 should not be assumed to power every DeltaV controller or I/O module directly; each device’s specified supply arrangement must be considered.
Industrial Applications
| Application | Typical Use |
|---|---|
| Process Automation | Supplying 24 VDC to compatible control-system equipment |
| Oil and Gas | Providing DC power for instrumentation interfaces and automation equipment |
| Water Treatment | Powering compatible process-monitoring and control devices |
| Chemical Processing | Supplying DC power to control-cabinet equipment |
| Power Generation | Supporting auxiliary automation and monitoring systems |
| Manufacturing | Providing a centralized DC source for compatible machine-control equipment |
| Utility Systems | Distributing 24 VDC to instrumentation and control devices |
| Distributed Control Systems | Supplying bulk DC power to downstream distribution and system power supplies |
Installation and Maintenance
- Confirm the VE5003 model and verify that the intended installation requires a bulk AC-to-24 VDC power supply.
- Check the available AC source and ensure that it matches the supply’s input requirements.
- Isolate the AC circuit and verify that power is disconnected before installation or wiring.
- Select a suitable wall or panel mounting location according to the installation arrangement.
- Provide adequate ventilation and access for wiring, inspection, and maintenance.
- Connect the AC input using the specified terminals and appropriate protective-earth wiring.
- Connect the 24 VDC output to a compatible distribution arrangement, observing polarity and terminal requirements.
- Calculate the total connected load and select suitable conductors and branch-circuit protection for the application.
- Measure the DC output before connecting sensitive downstream equipment.
- Energize the supply and verify that the output voltage remains within the required range under the expected load.
- If a downstream device loses power, check the distribution terminals, branch protection, wiring continuity, and load current before identifying the supply as the cause.
- Record the power-distribution connections and connected loads to simplify future fault diagnosis and maintenance.
For installations with long DC cable runs, evaluate voltage drop under load. Excessive voltage drop can cause downstream equipment to operate outside its specified input range even when the supply itself produces the correct output voltage.
Related Components
| Component | Function |
|---|---|
| 24 VDC Distribution Terminal Block | Distributes DC power to individual branch circuits |
| AC Circuit Protection | Protects the incoming power circuit according to the installation design |
| DC Branch-Circuit Protection | Limits the effects of faults on individual output branches |
| DeltaV System Power Supply | Supplies conditioned power to compatible controller and I/O hardware |
| I/O Interface Carrier | Provides connections for compatible I/O modules and associated field power |
| DC Power Wiring | Carries the 24 VDC output to downstream equipment |
| Protective-Earth Connection | Provides the required protective grounding path |
| DC-Powered Field Interface | Receives 24 VDC for compatible instrumentation or interface functions |
| Voltage Measuring Instrument | Verifies output voltage during commissioning and troubleshooting |
| DeltaV Controller and I/O Hardware | Performs control processing and process-signal acquisition using the specified power arrangement |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Emerson VE5003 | Bulk AC to 24 VDC Power Supply | Centralized 24 VDC power distribution |
| Emerson VE5004 | Bulk AC to 12 VDC Power Supply | Applications requiring a 12 VDC bulk supply |
| Emerson VE5005 | Bulk 24 VDC to 12 VDC Power Supply | Conversion from 24 VDC to 12 VDC |
| Emerson VE5001 | DeltaV AC/DC System Power Supply | Powering compatible DeltaV M-Series control hardware |
| Emerson VE5008 | DeltaV DC/DC System Power Supply | Converting DC input power for compatible system hardware |
| Emerson DeltaV System Power Supplies | System Power Supply Family | Providing the required power to compatible controllers and I/O assemblies |
Key Advantages
- Converts AC input power into a nominal 24 VDC output.
- Serves as a centralized power source for compatible industrial equipment.
- Supports structured DC distribution in control cabinets.
- Can supply downstream equipment through an appropriately rated distribution arrangement.
- Separates bulk power conversion from controller and I/O signal-processing functions.
- Suitable for industrial automation installations requiring a 24 VDC power source.
Technical FAQs
What is the function of the Emerson VE5003 DeltaV Bulk AC to 24 VDC Power Supply?
The VE5003 converts incoming AC power into 24 VDC for compatible downstream equipment. In a DeltaV installation, it can serve as the bulk power source for DC distribution and other equipment that requires a compatible 24 VDC supply.
How do I determine whether the VE5003 can power the connected equipment?
Calculate the combined steady-state current demand of all connected loads and account for startup current and other transient loads. Compare the expected demand with the supply’s rated output capacity, and check conductor sizing, branch protection, and voltage drop across the distribution wiring.
Can the VE5003 power DeltaV controllers and I/O modules directly?
The VE5003 provides bulk 24 VDC power, but individual DeltaV controllers and I/O assemblies may require a specific system power supply or carrier arrangement. Check the power-input requirements of each device and use the appropriate system power architecture rather than assuming every module can connect directly to the bulk output.
What should I check if the 24 VDC output is low or downstream equipment repeatedly loses power?
Measure the output voltage at the supply terminals and again at the affected load while the system is operating. Inspect AC input stability, output connections, branch protection, cable voltage drop, and total load demand. If the supply voltage is correct at its terminals but low at the load, investigate the distribution wiring and connections before replacing the supply.