Product Description

The A1BD5D-05 is a robust analog terminal board designed for CENTUM and compatible Yokogawa automation systems. It provides a centralized termination point for field wiring, ensuring reliable signal transmission between field instruments—such as transmitters, sensors, and control valves—and the control system’s analog I/O modules. With screw-type terminals and a durable PCB construction, this board simplifies installation, maintenance, and troubleshooting within marshaling cabinets. The "Basic type" configuration is intended for safe-area applications, offering a cost-effective solution where hazardous area certification is not required.

Technical Specifications

Industrial Application Scenarios

The A1BD5D-05 is widely used for analog signal marshaling in industries such as:

• Water treatment and wastewater management

• HVAC and building automation

• General manufacturing plants

By separating field wiring from sensitive I/O electronics, it allows loop testing and maintenance without interrupting system operation. Its reliable screw-type terminals ensure long-term electrical integrity in standard industrial environments.

Technical FAQs

1. Can this board be used in Class I, Div 1 hazardous areas?
No. The "-5" suffix indicates basic safe-area design. For hazardous environments, an Ex/IS-certified terminal board must be selected.

2. Which cables connect the board to I/O modules?
Yokogawa KS-series signal cables (e.g., KS1, KS10) are typically used for reliable connectivity between the terminal board and the controller backplane.

3. Can individual loops be tested without disconnecting the system?
Yes. The terminal design allows isolated testing of individual analog loops while maintaining system operation.