Yokogawa ANR10D-420/NDEL Node Interface Unit

The YOKOGAWA ANR10D-420/NDEL, also cataloged as the ANR10D Node Interface Unit, operates as a dedicated hardware component for dual-redundant ER bus communication within CENTUM VP DCS platforms.

Suffix Breakdown & Model Matrix

• ANR10D: Base model designation for the dual-redundant ER bus Node Interface Unit.
• -4: Dual-redundant internal power supply configuration.
• 2: 220 to 240 VAC power supply voltage rating.
• 0: Basic non-explosion protection physical specification.
• NDEL: Software license key for Node Expansion capabilities.

Hardware Specifications

Process Control and Channel Isolation Properties

• Dual-Redundant ER Bus Execution: Facilitates high-speed, deterministic node communication across primary and secondary ER bus links to prevent data loss during network disruptions.
• Galvanic Isolation Circuitry: Features channel-to-channel isolation on interface pathways to isolate local control backplane logic from external power surge transients.
• 4-20 mA HART Pass-Through Connectivity: Supports high-density signal distribution and digital parameter routing between remote expansion nodes and central control processors.

Frequently Asked Questions

Q: How does the dual-redundant power supply option (-4 suffix) operate inside the ANR10D frame?

A: The chassis accommodates two independent internal power modules operating in parallel; if one supply rail fails, the alternate rail immediately assumes full power load without interrupting node operation.

Q: What physical hardware is required to install the unit into a standard 19-inch cabinet?

A: Installation requires four M5 mounting screws along with the provided insulation bushings to maintain electrical isolation between the chassis and cabinet rack frame.

Q: Can an expansion node operating on the ANR10D unit be swapped or upgraded while live?

A: Hot-swapping individual bus interface cards within the node is supported, provided ESD protective equipment is used and grounding connections remain firmly attached.

Field Installation Guidelines

1. Mount the unit horizontally in a standard 19-inch rack frame using four M5 screws fitted with the supplied insulation bushings to prevent stray frame currents.
2. Connect both primary and secondary ER bus communication cables to their respective A and B channel ports to ensure full dual-redundancy logic.
3. Establish a low-impedance frame ground by attaching a heavy copper ground strap to the main cabinet system earth bar.
4. Separate external power feeds and communication cables into independent wire troughs, maintaining a minimum spacing of 300 mm from high-voltage AC conductors.