NFBU200-S05 Yokogawa FCN-500 Autonomous Controller Base Module

Availability: 20 left in stock

Yokogawa NFBU200-S05 FCN-500 Base Module Configured for high-availability backplane routing and I/O expansion in FCN-500 autonomous controller architectures, the Yokogawa...

SKU: NFBU200

Manufacturer: Yokogawa
Product No.: NFBU200
Product Type: Base Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 3000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa NFBU200-S05 FCN-500 Base Module

Configured for high-availability backplane routing and I/O expansion in FCN-500 autonomous controller architectures, the Yokogawa NFBU200-S05 (NFBU200 Base Module) provides direct physical/electrical execution for redundant system backplane operations.

Hardware Specifications

Parameter	Specification
Model	NFBU200-S05
Brand	Yokogawa
Origin	Japan
Weight	3.0 kg
Dimensions	130 x 50 x 115 mm
Operating Temp	0 to 55 deg C
Power Consumption	24 VDC (0.5 A)
Module Type	Base Module
Compatible Controllers	FCN-500 autonomous controllers
Power Supply Slots	2 slots (Supports Single or Duplexed power)
System Bus	Internal SB Bus (Duplex)
Single CPU Capacity	Supports up to 8 I/O modules
Duplex CPU Capacity	Supports up to 6 I/O modules
Mounting	DIN rail or rack slot
Certifications	CE, UL, IEC standards

DCS System Backplane and Channel Isolation Features

The Yokogawa NFBU200-S05 base unit establishes a fault-tolerant physical backboard for the FCN-500 series, utilizing a duplexed internal SB bus architecture to route logic and I/O communication signals. Integrated galvanic isolation rated at 500 VAC separates system logic circuitry from external power drops and field-side noise, preventing interference propagation across adjacent expansion bays.

Furthermore, the hardware design accommodates redundant CPU configurations and dual 24 VDC power supply feeds. When processing critical signals across 4-20 mA HART loops or network lines, the base backboard maintains continuous electrical continuity during module hot-swap actions, ensuring uncompromised field execution.

Frequently Asked Questions

Q: How does the module slot capacity change when configuring the base module for duplex CPU operation?

A: In single CPU mode, the base backboard supports up to 8 I/O modules. When engineers deploy duplexed CPU modules for system redundancy, the available expansion capacity adjusts to 6 I/O slots.

Q: What isolation rating protects the internal backplane bus against field transients?

A: The backboard incorporates a 500 VAC isolation barrier that isolates internal logic and network lines from external electrical surges and ground loop currents.

Field Installation Guidelines

Cabinet Mounting and Structural Fastening: Technicians must secure the base module to standard DIN rail or enclosure rack slots using recommended mounting hardware, maintaining structural stability for fully populated I/O configurations.
Thermal Clearance Management: Maintain a minimum vertical clearance of 50 mm above and below the base module backplate to support passive convective airflow through inserted CPU, power, and I/O cards.
Grounding and Shielding Protocols: Installers must connect the functional earth (FE) chassis terminal directly to the central enclosure ground bar using low-impedance copper conductors to suppress high-frequency electromagnetic noise.
Hot-Swap Safety Measures: Before seating or replacing CPU and I/O modules in live backplane slots, field personnel must verify that power module locks are engaged and terminal retention screws are disengaged.

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