Overview
Suffix Breakdown & Model Matrix
| Model | Configuration |
|---|---|
| AFV10D-S41101 | Duplexed Field Control Unit for Vnet/IP and FIO, 19-inch rack mountable |
| AFV10D-S41151 | Duplexed Field Control Unit for Vnet/IP and FIO, 19-inch rack mountable |
Power Supply Suffix Options
| Suffix | Description |
|---|---|
| 1 | 100 – 120 VAC |
| 2 | 220 – 240 VAC |
| 4 | 24 VDC |
Protection Options
| Suffix | Description |
|---|---|
| 5 | Basic type without explosion protection |
| 6 | ISA Standard G3 option without explosion protection |
| E | Basic type with explosion protection |
| F | ISA Standard G3 option with explosion protection |
Control Function
| Code | Description |
|---|---|
| 1 | LFS1500 Control Function for Field Control Station |
| /ATDOC | Explosion Protection Manual |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AFV10D-S41101, AFV10D-S41151 |
| Brand | Yokogawa |
| Origin | Japan |
| Product Type | Duplexed Field Control Unit |
| Network | Vnet/IP with FIO |
| Processor | VR5432, 133 MHz |
| Main Memory | 32 Mbyte |
| Memory Backup | Battery backed, maximum 72 hours |
| Battery Recharge Time | Minimum 48 hours |
| FCU Status Output | 2 terminals (NC, C), contacts open during FCU failure |
| Contact Rating | 30 VDC, maximum 0.3 A |
| Communication Interface | Dual-redundant Vnet/IP |
| Maximum Node Units | 14 per FCU (maximum 9 ESB Bus node units) |
| LFS1500 Capacity | 3 nodes standard, expandable to 14 with LFS1550 package |
| Processor Modules | 2 × CP451 in redundant configuration |
| Power Supply Modules | 2 × PW481, PW482, or PW484 in redundant configuration |
| Maximum I/O Modules | 8 |
| ESB Bus Interface | EC401 installed in Slots 7 and 8 for redundant configuration |
| ER Bus Interface | EB401 installed in odd-numbered slot |
| Input Power | 100 – 120 VAC, 220 – 240 VAC, or 24 VDC |
| Power Consumption | 200 VA (100 – 120 VAC), 230 VA (220 – 240 VAC), 5.5 A (24 VDC) |
| Weight | Approx. 8 kg (AFV10D) |
| Mounting | 19-inch rack mounting using 8 × M5 screws |
| Operating Temp | Refer to system environmental specification GS 33K01A10-50E |
Channel Isolation and Process Control Integration
The AFV10D Field Control Unit is designed for distributed process control over the Yokogawa Vnet/IP architecture. Dual-redundant processor modules and communication interfaces maintain controller operation during module replacement or fault conditions supported by the system configuration.
The controller exchanges process data with FIO node units through ESB Bus or ER Bus interfaces. ESB Bus connections require EC401 Bus Coupler Modules installed in the designated slots, while ER Bus connections require EB401 Interface Master Modules installed according to the specified slot arrangement.
For process instrumentation, the controller architecture supports integration with FIO I/O modules that handle standard industrial signal types, including 4-20 mA analog interfaces and digital process signals, depending on the installed I/O modules within the CENTUM VP platform.
Frequently Asked Questions
Q: Does the AFV10D support redundant controller configuration?
A: Yes. The unit supports dual processor modules, dual Vnet/IP communication interfaces, and dual power supply modules for redundant controller operation.
Q: Can ESB Bus and ER Bus node units be connected simultaneously?
A: Yes. The total number of connected ESB Bus and ER Bus node units must not exceed 14 per Field Control Unit, with a maximum of 9 ESB Bus node units.
Q: Are processor and power modules intended for installation in fixed slot locations?
A: Yes. The hardware configuration specifies dedicated slot assignments for processor modules, EC401 ESB Bus Coupler Modules, and EB401 ER Bus Interface Master Modules. Installation should follow the slot arrangement defined by Yokogawa documentation.
Field Installation Guidelines
- Verify the input power specification before energizing the Field Control Unit.
- Install redundant processor and power supply modules in the designated slots before system commissioning.
- For ESB Bus systems, install EC401 modules according to the required single or redundant configuration.
- For ER Bus systems, install EB401 modules only in the specified odd-numbered slots and leave the adjacent slot unused where required.
- Secure the chassis to the 19-inch rack using all specified mounting screws.
- Route communication cables separately from power wiring to reduce electrical interference.
- Connect cable shields according to the plant grounding standard and maintain a single-point shield termination where required by the control system design.
- Confirm battery condition before long-term maintenance shutdowns to preserve memory backup capability.
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