PW501-S1 Yokogawa CENTUM VP Datasheet & Technical Manual

Yokogawa CENTUM VP PW501-S1 Power Supply Module

Yokogawa CENTUM VP PW501-S1 Power Supply Module

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Yokogawa PW501-S1 Power Supply Module The Yokogawa PW501-S1, also cataloged as the PW501 Power Supply Module, operates as a dedicated...

Código: PW501

Manufacturer: Yokogawa
Product No.: PW501
Product Type: Power Supply Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 1800g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

Yokogawa PW501-S1 Power Supply Module

The Yokogawa PW501-S1, also cataloged as the PW501 Power Supply Module, operates as a dedicated hardware component for converting wide-range AC mains input into regulated 24 VDC power distribution within Yokogawa CENTUM VP and CS 3000 distributed control system architectures.

Hardware Specifications

Parameter	Specification
Model	PW501-S1 (Base Model: PW501)
Brand	Yokogawa Electric Corporation
Origin	Japan
Weight	1.8 kg
Dimensions	150 x 120 x 100 mm
Operating Temp	-10 deg C to +60 deg C
Input Voltage Range	85-264 VAC (50/60 Hz) or 120-370 VDC
Output Voltage	24 VDC (+/- 0.5% regulation accuracy)
Output Current	20 A continuous (25 A peak for 10 s)
Output Power	480 W continuous
Efficiency	92% to 95% at nominal full load
Ripple and Noise	Less than 50 mV peak-to-peak
Redundancy	Supports parallel redundancy up to 4 units
Cooling	Natural convection (fanless)
Certifications	CE, UL, CSA, ATEX Zone 2, IEC 61010-1

DCS Power Distribution and Channel Isolation Features

The PW501-S1 maintains regulated DC output stability under line and load fluctuations, preventing power supply noise from coupling into analog input loops. Standard field instrumentation topology depends on clean power delivery across 4-20 mA HART loop protocol circuits, where power supply ripple directly impairs signal resolution. Integrated galvanic channel-to-channel isolation within downstream modules relies on the low-noise output baseline of the PW501-S1 to suppress common-mode ground loops across distributed I/O racks. Furthermore, clean 24 VDC rail performance ensures accurate cold junction compensation (CJC) calculations on adjacent thermocouple termination assemblies by eliminating thermal variance caused by supply ripple.

Frequently Asked Questions

Q: Can the PW501-S1 power supply module be replaced while the control system remains powered?

A: Technicians can hot-swap the PW501-S1 provided that the module operates within a parallel redundant configuration where at least one secondary power module shares the backplane bus load. When removing a single non-redundant PW501-S1 module, engineers must de-energize the incoming field circuit to prevent controller shutdown.

Q: How does the PW501-S1 handle output short circuits or over-temperature events?

A: The module incorporates built-in overvoltage, overcurrent, and over-temperature protection circuits. Upon detection of a direct short or thermal overload, the unit enters a hiccup protection mode and automatically recovers normal operation once the thermal limit resets or the fault clears.

Field Installation Guidelines

Mount the PW501-S1 vertically on a standard DIN rail or panel surface within a well-ventilated industrial enclosure. Maintenance crews must maintain a minimum clearance of 50 mm above and below the chassis to allow unimpeded natural thermal convection. Additionally, technicians must secure the primary protective earth (PE) ground wire directly to the chassis ground terminal before applying input voltage. Route high-voltage AC input lines away from low-voltage 24 VDC output wiring and field communications cables to minimize electromagnetic interference. Always verify that wire gauge sizing matches the 20 A continuous current rating to limit voltage drop across long wiring runs.

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