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NFPW 442-10 YOKOGAWA Power Supply Datasheet & Technical Manual

NFPW 442-10 YOKOGAWA Power Supply Datasheet & Technical Manual

The YOKOGAWA NFPW442-10, also cataloged as the NFPW442-10 Power Supply Module, operates as a dedicated hardware component for power regulation within Yokogawa STARDOM FCN, FCJ, and FCN-RTU control platforms. This...

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SKU: NFPW 442-10
Vendor: Yokogawa
Category: Power Supply Module
Related Series:

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The YOKOGAWA NFPW442-10, also cataloged as the NFPW442-10 Power Supply Module, operates as a dedicated hardware component for power regulation within Yokogawa STARDOM FCN, FCJ, and FCN-RTU control platforms. This module executes the conversion of 24 VDC input into regulated 5 VDC and internal system voltages, maintaining the electrical potential required for a full rack of CPU and I/O modules.

Hardware Specifications

Parameter Specification
Model NFPW442-10
Brand Yokogawa
Origin Japan
Weight 0.6 kg
Dimensions Standard FCN module form factor
Input Voltage 24 VDC +/- 10%
Output Voltage 5 VDC and internal system rails
Operating Temp -20 deg C to +60 deg C
Cooling Method Passive convection

Process Control and Signal Isolation

The NFPW442-10 is engineered for high-availability control environments, featuring RAS (Reliability, Availability, Serviceability) capabilities, including CPU self-diagnostics and localized temperature monitoring. The module supports galvanic channel-to-channel isolation to prevent common-mode noise propagation across the backplane. Its design maintains strict 5 VDC output regulation under fluctuating load conditions, ensuring data integrity for I/O module communication and field control bus synchronization.

Frequently Asked Questions

Q: Does the NFPW442-10 support hot-swapping during system operation?

A: Yes, this module is hot-swappable. It can be replaced while the controller is powered, provided that a redundant power configuration is active or the process safety requirements permit temporary module removal.

Q: Is this module compatible with duplex (redundant) power setups?

A: Yes, the NFPW442-10 supports dual power supply configurations when installed in compatible base modules (NFBU200 or NFBU050). The system performs automatic failover if the primary module output drops below nominal thresholds.

Field Installation Guidelines

  1. Verify that the 24 VDC input source is within the 21.6–26.4 VDC range before installation.
  2. Ensure the base module (NFBU200 or NFBU050) is properly secured to the cabinet rail.
  3. Align the NFPW442-10 with the base module guide rails and press firmly to seat the backplane connector.
  4. Fasten the module using the integrated front-panel screws to ensure the module chassis is bonded to the system protective earth (PE) ground.
  5. Confirm that the module diagnostic LED is steady-state post-installation; if the LED indicates a fault, check for improper seating or an input voltage supply error.