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Yokogawa AFV30D-S41152 Duplexed Field Control Unit

Configured for deterministic control execution in CENTUM VP systems, the Yokogawa AFV30D-S41152 (AFV30D Duplexed Field Control Unit) provides direct physical and electrical execution of regulatory and sequencing logic while maintaining continuous Vnet/IP communication with Human Interface Stations.

Suffix Breakdown & Model Matrix

Code Segment	Definition
AFV30D	Duplexed Field Control Unit, Vnet/IP, 19-inch rack mount
-S	Standard type
4	Dual-redundant Vnet/IP interfaces
1	Dual-redundant power supply
1	100–120 V AC input
5	Base software license for AFV30D control functions
2	LFS1700 control function package with one feedback control loop group

Hardware Specifications

Parameter	Specification
Model Brand	Yokogawa AFV30D-S41152
Origin	Japan
Weight	Approx. 6.5 kg
Dimensions	482.6 x 310 x 177 mm (W x D x H)
Operating Temp	0 to 50 degC
Power Consumption	Max 150 W
Processor Redundancy	Dual-redundant CPUs
Network Interface	Vnet/IP, 1 Gbps, dual-redundant
Power Supply Voltage	100–120 V AC, 50/60 Hz
Memory Protection	Battery-backed main memory
Regulatory Compliance	CE, CSA, UL, KC, EAC

FOUNDATION Fieldbus & 4-20 mA HART Connectivity

The AFV30D-S41152 supports integration with FOUNDATION Fieldbus H1 segments via connected I/O nodes, enabling deterministic scheduling of function blocks. HART protocol is processed transparently on analog input and output channels, allowing simultaneous 4-20 mA signaling and digital device parameterization without altering loop integrity. Channel-to-channel isolation minimizes ground loop effects during multi-node field wiring.

Frequently Asked Questions

Q: What is the CPU switchover time in duplex mode?

A: Switchover occurs in less than 10 ms with no disturbance to control outputs.

Q: Can the unit operate with only one power supply module installed?

A: Yes, single-module operation is possible, but redundancy is lost until both are installed.

Q: Does firmware require reloading after replacing a failed CPU module?

A: No. The standby CPU maintains synchronized firmware images; replacement triggers automatic synchronization.

Field Installation Guidelines

Mount the FCU in a grounded 19-inch rack with adequate front clearance for cabling. Use separate conduit runs for power and signal cables to reduce electromagnetic interference. Ensure shield terminations are connected to the rack’s common ground point at one end only. Verify that all Vnet/IP connectors are fully latched before energizing the system. Confirm power supply voltage matches the configured 100–120 V AC rating prior to startup.

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