12P2536X062 Emerson DeltaV Datasheet & Technical Manual
Manufacturer: GE Fanuc
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Part Number: VE4002S1T2B1 12P2536X062
Condition：New with Original Package
Product Type: Analog Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Emerson VE4002S1T2B1 DeltaV Analog Output Module
The Emerson VE4002S1T2B1, also cataloged as the 12P2536X062 Analog Output Module, operates as a dedicated hardware component for modulating current loops within Emerson DeltaV DCS platforms. It interfaces directly with the central processing unit over the digital backplane, converting algorithmic controller commands into discrete, isolated analog currents designed to modulate physical field instruments and positioning actuators.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | VE4002S1T2B1 |
| Brand | Emerson |
| Origin | USA |
| Weight | 0.32 kg |
| Dimensions | 51 mm x 102 mm x 102 mm |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | LocalBus: 12 VDC at 150 mA; Bussed Field Power: 12 VDC at 300 mA |
| Number of Channels | 8 analog output channels |
| Signal Range | 4-20 mA current output |
| Resolution | 12-bit digital-to-analog conversion |
| Field Circuit Rating | 24 VDC at 32 mA |
| Humidity Range | 5% to 95% non-condensing |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak-to-peak (2 to 13.2 Hz), 0.7 g (13.2 to 150 Hz) |
| Certifications | CE, UL, ATEX, IECEx (Zone 2 / Class I Div. 2) |
Process Control and DCS Instrumentation Attributes
The underlying electronic sub-assembly features an onboard 12-bit digital-to-analog converter (DAC) array across all 8 available channels to execute linear current loops. The module architecture incorporates individual channel-to-channel isolation circuits that prevent electrical fault cross-talk and maintain signal loop integrity under variable ground potentials. Designed for synchronous interaction within the DeltaV platform, the hardware manages current transmission profiles in compliance with the electrical constraints of the 4-20 mA HART loop protocol utilized by smart valve positioners.
Frequently Asked Questions
Q: What are the backplane electrical current demands for this module?
A: The VE4002S1T2B1 draws a maximum of 150 mA at 12 VDC from the LocalBus logic rail, supplemented by a 300 mA draw at 12 VDC from the bussed field power rail.
Q: How does the 12-bit digital-to-analog conversion affect loop tracking?
A: The 12-bit resolution provides precise discretization of the 16 mA active control span, allowing for stable positioning commands to external actuators without mechanical hunting or step oscillations.
Q: Are there environmental restrictions for online module replacement?
A: While hot-swapping is physically accommodated by the DeltaV chassis interface, live maintenance within hazardous areas must strictly comply with ATEX/IECEx Zone 2 regulations to prevent potential ignition hazards from arc transients.
Field Installation Guidelines
- Chassis Attachment: Slide the module into its targeted position on the DeltaV carrier track, pushing firmly until the rear connector assembly snaps onto the LocalBus pins. Fasten all integrated retention mechanisms to suppress vibration-induced contact wear.
- Shield Grounding Matrix: Terminate all instrument cable shields at a single, centralized ground reference terminal strip within the marshalling enclosure. Avoid dual-ended grounding configurations to prevent parasitic ground currents from corrupting the current loop.
- Wiring Separation: Route the 4-20 mA loop conductors through dedicated low-voltage wire ducts. Keep these lines separated from high-voltage AC lines or motor supply cables to eliminate inductive noise coupling.
- Loop Impedance Balancing: Verify that the total loop resistance of the connected field devices does not exceed the drive limits established by the 24 VDC at 32 mA field circuit rating to ensure precise full-scale tracking.