YOKOGAWA AVR10D-Q22021 Power Supply Module

Product Overview

The Yokogawa AVR10D-Q22021 is not a simple standalone power supply module. It is a duplex Vnet/IP interface unit / communication router assembly used in Yokogawa CENTUM CS 3000 / CENTUM VP distributed control systems (DCS).

It integrates multiple internal modules, including:

• Vnet/IP communication interface (Vnet router function)
• Power supply units (commonly PW442 series inside configuration)
• Coupler / communication interface boards (e.g., VC / VI series depending on build)

So it is best described as a redundant Vnet/IP system node (communication + power + routing unit) rather than only a PSU.

Key Technical Characteristics

• Brand: Yokogawa
• Model: AVR10D-Q22021
• System: CENTUM CS 3000 / CENTUM VP
• Type: Duplex Vnet/IP router / communication node with power supply assembly
• Function:
  • High-speed Vnet/IP network routing
  • Redundant communication between HIS / FCS / system nodes
  • Integrated system power distribution
• Network: Vnet/IP (deterministic industrial Ethernet)
• Redundancy: Fully duplex (dual-redundant architecture)
• Power Input: Typically AC 220–240V system power (configuration dependent)
• Internal Modules (typical build): PW442 power supply, VC/VI communication boards

Advantages & Features

• High-reliability dual-redundant DCS communication architecture
• Ensures continuous operation of critical control networks
• Integrated power + communication + routing design
• Hot-redundancy support in system configuration
• Designed for large-scale industrial plants
• Stable deterministic communication for real-time control

Applications

• Oil & gas refineries
• Petrochemical plants
• Power generation systems
• LNG facilities
• Large-scale process control systems
• Distributed Control System (DCS) backbone infrastructure

Important Notes / Precautions

• This unit is system-specific and not a general PLC power supply
• Must be installed in compatible Yokogawa CENTUM VP / CS3000 architecture
• Contains multiple internal modules; replacement is system-dependent
• Incorrect configuration can cause Vnet/IP communication failure
• Requires trained engineers for installation and maintenance
• Redundant pairing must be correctly matched for duplex operation