Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | VE5128 |
| Brand | Emerson |
| Origin | USA |
| Operating Temp | -10 deg C to +60 deg C |
| Power Consumption | 960 W nominal output power |
| Module Type | Bulk Power Supply |
| Input Voltage | 100-240 VAC, 43-67 Hz |
| Output Voltage | 24 VDC adjustable from 23.5 VDC to 28.5 VDC |
| Output Current | 40 A continuous |
| Peak Output Power | 1440 W for up to 4 seconds |
| Efficiency | Approximately 93% at full load |
| Mounting Type | T-type DIN rail mounting |
| Storage Temperature | -40 deg C to +85 deg C |
| Protection Feature | Conformal coating for industrial environmental resistance |
| Power Factor Correction | Active PFC supported |
| Redundancy Capability | Supports optional redundant power configurations |
Process Control Power Regulation and Isolation Features
The Emerson VE5128 provides regulated 24 VDC output for DeltaV system hardware requiring stable DC distribution. The power module integrates active Power Factor Correction (PFC) to improve input current characteristics and reduce electrical disturbance on the AC supply network.
Furthermore, the unit supports redundant power architecture configurations where system availability requirements demand parallel power operation. The output adjustment range allows engineers to match the DC distribution requirements of connected DeltaV controllers, I/O assemblies, and field interface components.
Frequently Asked Questions
Q: What type of power conversion does the Emerson VE5128 perform?
A: The VE5128 converts 100-240 VAC input power into adjustable 24 VDC regulated output power for DeltaV system components.
Q: Does the VE5128 support redundant power arrangements?
A: Yes. The module supports optional redundant configurations when installed within compatible DeltaV power distribution architectures.
Q: What mounting method is used for the VE5128?
A: The VE5128 uses a T-type DIN rail mounting method for cabinet installation.
Field Installation Guidelines
Install the VE5128 on a suitable DIN rail inside a controlled industrial cabinet environment. Verify AC input wiring polarity, protective grounding, and conductor sizing before energizing the power supply.
Keep AC input wiring separated from low-level signal cables, communication lines, and I/O field wiring to reduce electrical interference. Connect protective earth according to the cabinet grounding design and maintain proper shielding practices for connected control equipment.
Before commissioning, verify the 24 VDC output voltage setting and confirm that the connected load remains within the continuous current rating. When using redundant power arrangements, check the system wiring configuration and ensure all power modules share the designed load distribution path.
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