Yokogawa ANR11D-420 CENTUM VP Node Interface Unit

Product Overview

The Yokogawa ANR11D-420 serves as a critical Node Interface Unit within the CENTUM VP and CS 3000 Distributed Control System (DCS) architectures. This unit bridges the communication and power distribution gaps between the system backplane and decentralized I/O nodes. It manages high-capacity power conversion, transforming DC input into stable AC output to support peripheral field hardware. We supply this unit as 100% Brand New and Original, ensuring your control network maintains maximum uptime and signal integrity across all connected nodes.

Technical Specifications

The ANR11D-420 features robust power handling capabilities designed for continuous operation in 24/7 industrial environments.

• Module Type: Node Interface Unit (NIU)

• Input Voltage: 24 V DC

• Output Voltage: 220–240 V AC

• Power Consumption: 320 VA (190 W)

• Frequency Range: 50/60 Hz ±3 Hz

• Dimensions: 540 mm x 103 mm (21.3" x 4.1")

• Mounting: Standard Rack/Cabinet Mount

• Condition: Guaranteed 100% Brand New Original

Engineering Advantages

The ANR11D-420 addresses complex power and signal distribution challenges in large-scale automation facilities:

• High-Efficiency Power Conversion: This unit converts 24V DC source power into a high-wattage AC output (Up to 320 VA). This capability allows engineers to power remote I/O subsystems directly through the interface node, eliminating the need for separate, bulky AC power supplies at the field level.

• Superior Frequency Stability: The internal regulation circuitry maintains output within a tight ±3 Hz tolerance. This precision prevents timing errors and hardware fatigue in frequency-sensitive field instruments, ensuring consistent data acquisition from the process floor.

• Space-Optimized Vertical Profile: With a slim 103 mm width and a 540 mm vertical reach, the ANR11D-420 maximizes rail density. This design allows for the installation of multiple interface units in high-density control cabinets where horizontal space remains at a premium.

• Noise Suppression Architecture: The ANR11D-420 incorporates advanced filtering to prevent electromagnetic interference (EMI) from migrating between the DC power source and the AC output side. This isolation protects the low-voltage communication backplane from power-line transients and industrial noise.

FAQs

• Can the ANR11D-420 handle both 50 Hz and 60 Hz systems?

  Yes. The unit automatically accommodates both 50 Hz and 60 Hz frequencies with a ±3 Hz tolerance. This flexibility makes it suitable for global deployment across different regional power standards.

• What happens if the DC input voltage fluctuates?

  The ANR11D-420 features internal stabilization to manage standard industrial DC fluctuations. However, for maximum system safety, we recommend maintaining a regulated 24V DC supply to ensure the unit operates within its optimal efficiency curve.

• Is this unit compatible with older CENTUM CS 3000 systems?

  The ANR11D-420 primarily supports CENTUM VP and later CS 3000 architectures. You should verify your specific node configuration and firmware revision to ensure seamless software integration.

• Does the unit arrive with factory-sealed packaging?

  Absolutely. Every ANR11D-420 we ship is 100% Brand New. It arrives in the original Yokogawa factory box with all protective internal structures and factory-sealed anti-static shielding intact.