Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | A1BR4D-05 |
| Brand | Yokogawa |
| Product Type | RTD Input Terminal Board |
| Origin | Japan |
| Mounting Type | DIN rail mount |
| System Compatibility | Yokogawa CENTUM VP FIO systems |
| Input Signal Type | Resistance Temperature Detector (RTD) |
| Channel Configuration | 16 channels x 1 |
| Redundancy Support | Single and dual-redundant configuration |
| Explosion Protection | Basic type, no explosion protection |
| Power Consumption | Passive terminal board, no external power consumption specified |
Yokogawa RTD Signal Termination and Isolation Features
The A1BR4D-05 provides physical termination points for RTD input wiring in CENTUM VP FIO architectures. It connects field RTD signals to the corresponding FIO input modules through dedicated terminal interfaces.
Additionally, the board supports single and dual-redundant RTD input arrangements. Therefore, it allows redundant field signal connection structures when the system configuration requires continuous measurement availability.
The Yokogawa CENTUM VP platform uses channel-to-channel signal management methods for process instrumentation. For RTD applications, the terminal board maintains separated wiring paths between field devices and control system input channels.
Frequently Asked Questions
Q: What type of field signal does the Yokogawa A1BR4D-05 support?
A: The A1BR4D-05 supports RTD input signal termination and is designed for resistance temperature detector connections in CENTUM VP FIO systems.
Q: Can the A1BR4D-05 be installed in a dual-redundant configuration?
A: Yes. The terminal board supports both single and dual-redundant RTD input configurations according to the CENTUM VP system design.
Q: Does the A1BR4D-05 require an external power supply?
A: No external power supply requirement is specified because the board functions as a passive field termination interface.
Field Installation Guidelines
- Install the A1BR4D-05 on a compatible DIN rail mounting structure according to Yokogawa installation requirements.
- Use shielded RTD cables when required by the site instrumentation design to reduce electrical interference.
- Connect cable shields according to the plant grounding scheme and avoid multiple grounding points that may create ground loops.
- Separate RTD signal wiring from high-voltage power cables and switching circuits.
- Verify terminal assignments before field wiring to prevent incorrect channel connection.
- Confirm redundancy wiring paths when applying dual-redundant input configurations.
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