Yokogawa ANB10D-426/CU2N/NDEL ESB Node Unit

The Yokogawa ANB10D-426/CU2N/NDEL, also cataloged as the ANB10D-426/CU2N/NDEL ESB Bus Node Unit, operates as a dedicated hardware component for dual-redundant bus node expansion and remote I/O data routing within CENTUM control platforms.

Suffix Breakdown & Model Matrix

• ANB10D: Base model designation for the Node Unit for Dual-Resistant ESB Bus.
• -4: Indicates the dual-redundant power supply configuration.
• 2: Specifies the 220-240 V AC power supply input variant.
• 6: Designates the inclusion of the ISA Standard G3 option, extended operating temperature range (-20 deg C to 70 deg C), and non-explosion protection profile.
• /CU2N: Identifies the included connector unit for the ESB Bus utilizing S9562FA (2 pieces).
• /NDEL: Specifies the software license option for node expansion.

Hardware Specifications

FOUNDATION Fieldbus and Channel Isolation Architecture

The ANB10D-426/CU2N/NDEL manages high-speed node communication and synchronizes data packets between Field Control Units and attached I/O cards. FOUNDATION Fieldbus and Profibus PA connectivity layers, along with standard 4-20 mA HART loop protocol integration paths, allow analog process variables and digital diagnostic data to stream concurrently without data collision. Channel-to-channel isolation parameters and the ISA Standard G3 corrosive-resistant coating protect internal logic circuitry from common-mode electrical transients and harsh atmospheric agents. Cold junction compensation (CJC) and internal thermal regulation maintain signal conversion linearity across the extreme -20 deg C to 70 deg C operating window.

Frequently Asked Questions

Q: Does this node unit support dual-redundant power supply inputs?

A: Yes, the module is engineered with a dual-redundant power architecture operating on a 220-240 V AC supply to maintain continuous operation during single power source interruptions.

Q: What specific hardware option is designated by the /CU2N suffix?

A: The /CU2N suffix indicates the inclusion of two S9562FA connector units configured for standard ESB bus daisy-chain non-terminating connections.

Q: Can this unit be inserted or extracted while the rack backplane is energized?

A: Primary power feeds must be isolated prior to physical installation or extraction to prevent electrical arcing and backplane pin degradation.

Field Installation Guidelines

• Mount the 19-inch rack chassis securely into the industrial cabinet using appropriate structural fasteners and ensure low-resistance bonding to the cabinet earth ground.
• Verify that the 220-240 V AC power supply source is completely de-energized prior to wiring input terminal blocks or inserting power modules.
• Route ESB bus and communication cables carefully while observing minimum bend radius rules, keeping them physically separated from high-voltage power lines.
• Maintain adequate vertical clearance around the chassis housing to support unhindered convective airflow across the thermal dissipation surfaces.