Yokogawa NFPW442-10 S2 Power Module

Product Overview

The Yokogawa NFPW442‑10 S2 is a power supply module designed for Yokogawa’s S2‑bus automation systems, such as CENTUM VP and related control systems. It provides stable 5.1 V DC system power and 24 V DC analog field power to support other modules like I/O, communication, and CPU units. This module ensures reliable and continuous operation in industrial automation and process control environments.

Redundancy is supported by installing dual modules on the base platform (e.g., NFBU200), enabling high system availability and fail‑safe performance.

Technical Specifications

Industry Applications

• Provides system and analog field power for Yokogawa process control modules like I/O and communication units

• Used in CENTUM VP, EXA, and S2-bus automation platforms

• Ideal for industries such as petrochemical, power generation, water treatment, and refining

• Enables high-availability configurations with dual power redundancy

• Suitable for systems requiring both digital logic power and analog field supply within one module

Key Advantages

• Dual-output supply: Delivers both system 5.1 V DC and 24 V field power, simplifying hardware design

• High power capacity: Handles substantial loads up to 7.8 A (system) and 4 A (field)

• Built-in protection: Safeguards against overvoltage and overcurrent conditions

• Redundant operation: Supports two-module redundancy for enhanced fault tolerance

• Robust industrial design: 3000 VAC isolation and compact size for reliable, dense installation

• Versatile compatibility: Works with many Yokogawa base modules and system configurations

• Reliable performance: Designed for continuous industrial operation with low self-consumption

Frequently Asked Questions (FAQ)

1. What are the input power requirements?
   220–240 V AC (range 170–264 V AC), at 50/60 Hz.

2. What voltages and currents does it supply?
   Outputs 5.1 V DC at up to 7.8 A (system) and 24 V DC analog field up to 4 A.

3. Can it be used for redundant power configurations?
   Yes, two modules may be installed on the NFBU200 base module for redundancy.

4. Does the module include protection mechanisms?
   Yes, it has built-in overcurrent and overvoltage protection.

5. What are the physical dimensions and weight?
   Dimensions: 49.7 mm x 130 mm x 146.5 mm; Weight: 0.6 kg.

6. How much power does the module itself draw?
   Approximately 0.4 A at 5 V DC under no-load conditions.

7. Which systems is it compatible with?
   CENTUM VP, CS, EXA, and other systems using S2-bus modules.

8. What is the total output power rating?
   40 W continuous with the capacity to handle up to 60 W peak.

9. Is this module still produced?
   It is marked as discontinued by some suppliers but may still be available through authorized sources or surplus vendors.

10. Can it supply all downstream I/O modules?
    Yes, it provides both logic system power and analog field power for typical S2 I/O modules.

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