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Yokogawa ANR10D-420 CENTUM ESB Bus Node Unit

The Yokogawa ANR10D-420, also cataloged as the ANR10D Bus Node Unit, operates as a dedicated hardware component for communication bridging between Field Control Units and remote I/O modules within Yokogawa CENTUM VP platforms.

Suffix Breakdown & Model Matrix

Suffix Code Option Description
ANR10D Base Model ESB Bus Node Unit
-4 Power Supply Dual-redundant power supply configuration
2 Line Voltage 220 V AC to 240 V AC power supply input
0 Protection Basic type with no explosion protection

Hardware Specifications

Parameter Specification
Model ANR10D-420
Brand Yokogawa
Origin Japan
Weight 2.0 kg (chassis base) to 10.0 kg (fully populated node)
Dimensions 482.6 mm x 221.5 mm x 21.3 mm
Operating Temp -20 deg C to 70 deg C
Power Consumption 230 VA / 120 W
Input Voltage 220 V AC to 240 V AC (50/60 Hz)
Output Power Supply 5.1 V DC (7.8 A), 24 V DC (1.7 A) via power supply modules
System Compatibility Yokogawa CENTUM VP and ProSafe-RS platforms
Module Capacity Accommodates up to 8 I/O modules per node
Communication Bus ER/ESB Bus interface (up to 14 remote nodes per FCU)
Data Refresh Cycle Less than 1 s for standard field variables
Rack Mounting Standard 19-inch rack mounting

FOUNDATION Fieldbus / Profibus PA Connectivity and Channel Isolation

The ANR10D-420 node unit hosts remote I/O cards that process FOUNDATION Fieldbus, Profibus PA, and standard 4-20 mA HART loop protocol instruments. Internal backplane buses incorporate channel-to-channel and node-to-system galvanic isolation barriers to prevent field transient spikes from entering the controller core. Dual-redundant ER bus lines manage deterministic field communications, maintaining continuous scan cycles across connected input and output sub-networks.

Frequently Asked Questions

Q: How does the dual-redundant power supply architecture behave during an AC line voltage interruption?

A: The chassis accommodates two independent power supply modules fed by separate 220-240 V AC lines. If one input source or power module fails, the secondary module carries the full internal 5.1 V DC and 24 V DC backplane load without interrupting I/O card operation.

Q: What mounting limitations exist for non-explosion-proof node variants?

A: Suffix code "0" designates a basic chassis without explosion protection. The hardware must reside inside a non-hazardous, environmental-controlled enclosure unless external explosion protection barriers are deployed.

Field Installation Guidelines

Mount the ANR10D-420 unit into a standard 19-inch cabinet frame. Tighten all four front panel mounting screws securely to eliminate mechanical sag and protect internal connectors against vibration.

Connect both 220-240 V AC supply circuits to their designated power module terminals. Route primary and secondary ER Bus communication cables through separate wiring channels to avoid common-mode cable damage. Terminate the shield drain wire at a single enclosure protective earth ground bar.

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