PW442-50 Yokogawa Power Supply Module

Yokogawa PW442-50 PW442-50-S2 CENTUM Power Supply Module

Yokogawa PW442-50 PW442-50-S2 CENTUM Power Supply Module

Disponibilidad: 20 Quedan en stock

Yokogawa PW442-50 Power Supply Module The Yokogawa PW442-50, also cataloged as the PW442-50-S2 Power Supply Module, operates as a dedicated...

Código: PW442-50

Manufacturer: Yokogawa
Product No.: PW442-50
Product Type: Power Supply Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

Yokogawa PW442-50 Power Supply Module

The Yokogawa PW442-50, also cataloged as the PW442-50-S2 Power Supply Module, operates as a dedicated hardware component for AC to DC power conversion and regulated backplane power distribution within CENTUM VP and CENTUM CS 3000 Field Control Station chassis networks.

Hardware Specifications

Parameter	Specification
Model	PW442-50 (PW442-50-S2)
Brand	Yokogawa
Origin	Japan
Weight	0.5 kg
Dimensions	49.7 x 130 x 146.5 mm
Operating Temp	0 to 55 deg C (extended: -20 to 70 deg C)
Power Consumption	1200 W output capacity (50 W node rated output)
Input Voltage	100-240 VAC (nominal 220-240 VAC, 50/60 Hz)
Output Voltage	24 VDC regulated
Output Current	Up to 7.8 A nominal (50 A peak handling capability)
Efficiency	93% typical
Circuit Protection	Inrush current limiting, overcurrent, and short-circuit protection

Galvanic Isolation & Fieldbus Loop Power Dynamics

The PW442-50 incorporates galvanic isolation between the main AC input line and the internal DC output stages to eliminate common-mode ground loops across distributed node units. By stabilizing the primary 24 VDC backplane rail, the unit maintains steady power delivery for analog input cards, HART loop communication interfaces, and 4-20 mA instrumentation circuits operating on the local control network.

Frequently Asked Questions

Q: Is hot-swapping permitted when replacing a faulty PW442-50 module?

A: Yes, hot-swapping is permitted provided the Field Control Station rack operates in a dual-redundant hot-standby configuration where the secondary module maintains full system load.

Q: How does the power supply handle transient line spikes on the AC input?

A: Internal overvoltage protection circuits and inrush current limiting suppress AC line surges before they propagate to the backplane, preserving signal integrity across connected I/O channels.

Q: What mounting procedure secures the unit within the chassis frame?

A: Slide the module vertically along the chassis guide rails until the backplane edge connector fully seats, then tighten the faceplate retaining screws to establish structural alignment and frame ground continuity.

Field Installation Guidelines

Main AC Disconnection: De-energize primary AC power feeds before connecting field power leads to the chassis terminal assembly, unless performing an authorized hot-swap under active dual-redundant power conditions.
Slot Insertion: Guide the module carefully along the card slot tracks inside the node chassis until the rear connector latches into the backplane power bus.
Screw Attachment: Tighten the upper and lower panel thumbscrews to secure the unit against operational vibration and ensure low-resistance metallic bonding to the system protective earth ground.
Clearance and Wiring: Maintain unobstructed vertical air paths above and below the chassis for passive convective cooling. Route low-voltage DC bus lines away from high-voltage AC input lines.

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