Yokogawa AFV30D-A41262 Duplexed Field Control Unit

The Yokogawa AFV30D-A41262 is a Duplexed Field Control Unit designed for Vnet/IP and Fieldbus Input/Output (FIO) in a 19-inch rack-mountable configuration. This model specifies dual-redundant Vnet/IP and a dual-redundant power supply, with a 220-240 V AC supply configuration and 256 MB of main memory per processor module. It supports field control functions under the LFS1700 license configuration.

Hardware Specifications

Configuration Details

The ordering code identifies the following configuration features:

• -A: Standard type for CP471.
• 4: Dual-redundant Vnet/IP and dual-redundant power supply.
• 2: 220-240 V AC power supply.
• 6: ISA Standard G3 option with no explosion protection.
• Final code 2: Specified as "Always 2" for R6.01 or later in the supplied ordering information.

The supplied ordering-code list also identifies an LFS1700 control-function option for field control stations using Vnet/IP and FIO. However, the code-position mapping is not sufficiently clear to confirm that option from the complete model number alone.

Functional Overview

The AFV30D provides field-control processing within a control system using Vnet/IP communication and FIO. Its dual-redundant network and power configurations support system architectures designed to maintain communication and power availability through redundancy. Actual failover behavior depends on the system configuration and applicable engineering documentation.

The 19-inch rack-mountable format supports rack-based installation. The specified ISA Standard G3 option indicates an environmental configuration choice; the supplied data does not establish additional temperature limits beyond the stated operating range.

Frequently Asked Questions

Q: Which power supply does the AFV30D-A41262 use?

A: This model is specified for 220-240 V AC at 50/60 Hz, with dual-redundant power supply configuration. Confirm the installed power modules and site supply conditions before replacement.

Q: Does the AFV30D-A41262 include explosion protection?

A: The supplied suffix definition for code 6 specifies the ISA Standard G3 option with no explosion protection. Do not select this configuration where explosion protection is a mandatory requirement.

Q: What should be checked before replacing an existing AFV30D unit?

A: Verify the full model number, CP471 standard-type configuration, supply voltage, Vnet/IP redundancy, and installed system revision. Also confirm the required control-function license and FIO configuration against the existing installation.