Product Description
AFV30D‑A41252 is a duplexed Field Control Unit (FCU) for Yokogawa CENTUM VP DCS system, 19‑inch rack‑mounted, compatible with CP471 processor module. It adopts dual‑redundant Vnet/IP communication and dual‑redundant power supply, powered by 220‑240V AC, non‑explosion‑proof, software version R6.01 or later. It supports high‑speed process calculation, self‑diagnosis and bumpless redundancy switchover, works with FIO field I/O modules for loop control and data acquisition. Widely used for DCS expansion, spare‑part replacement and plant retrofitting to guarantee non‑stop system operation.
Technical Parameters
| Item | Specification |
|---|---|
| Model | AFV30D‑A41252 |
| Manufacturer | YOKOGAWA Electric |
| Product Type | Duplexed Field Control Unit (FCU) |
| System | CENTUM VP DCS |
| Compatible Processor | CP471 |
| Communication | Dual‑redundant Vnet/IP, FIO supported |
| Power Input | 220‑240V AC |
| Power Consumption | 230VA |
| Mounting | 19‑inch standard rack mount |
| Explosion‑proof | Non‑explosion‑proof (basic type) |
| Software Requirement | R6.01 or higher |
| Weight | Approx. 8kg |
| Operating Temperature | 0℃ ~ +50℃ |
| Humidity | ≤90%RH, non‑condensing |
Product Application
- DCS loop control: PID closed‑loop control for petro‑chemical plants, real‑time regulation of flow, temperature and pressure.
- System expansion & retrofitting: Add new control nodes for CENTUM VP projects, expand FIO I/O channels.
- Maintenance & spare‑part replacement: Fault module replacement for existing DCS system, hot‑standby redundancy allows on‑line maintenance.
- Process‑industry automation: Oil & gas, power generation, water treatment and pharmaceutical industries for field signal acquisition, interlock & sequence logic control.
- High‑availability control system: Dual‑network and dual‑power redundancy to minimize downtime for continuous‑process plants.
Related Series Part Numbers
- AFV30D‑A41152 Duplex FCU, 100‑120V AC power supply
- AFV30S‑S41252 Simplex Field Control Unit
- AFV30D‑S41251 Quad‑redundant Field Control Unit
- AFV40D‑A41252 New‑generation high‑performance duplex FCU
- AFV30D‑A42252 Duplex FCU with explosion‑proof option








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