PW481-50 S2 YOKOGAWA CENTUM VP Datasheet & Technical Manual

YOKOGAWA PW481-50 S2 CENTUM VP Power Supply Module

YOKOGAWA PW481-50 S2 CENTUM VP Power Supply Module

Availability: 20 left in stock

YOKOGAWA PW481-50 S2 Power Supply Module The YOKOGAWA PW481-50 S2, also cataloged as the PW481-50 Power Supply Module, operates as...

SKU: PW481-50 S2

Manufacturer: Yokogawa
Product No.: PW481-50 S2
Product Type: Power Supply Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 180g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

YOKOGAWA PW481-50 S2 Power Supply Module

The YOKOGAWA PW481-50 S2, also cataloged as the PW481-50 Power Supply Module, operates as a dedicated hardware component for internal backplane DC power regulation within CENTUM VP Field Control Units and FIO Node Units.

Hardware Specifications

Parameter	Specification
Model	PW481-50 S2
Brand	YOKOGAWA
Origin	Japan
Weight	0.18 kg
Dimensions	22.0 x 181.0 x 127.0 mm
Operating Temp	-20 deg C to +60 deg C (up to +70 deg C with suffix -50)
Power Consumption	Max 200 VA
Input Voltage Range	100-120 VAC +/-10%, 50/60 Hz +/-3 Hz
Mounting	Rack mount in dedicated slots (P1-P2) of FCU or FIO Node Unit
Environmental Protection	ISA Standard G3 conformal coating option
Protection Class	IP20 (cabinet installation)
Redundancy	Dual-redundant configuration via paired modules

Galvanic Isolation and 4-20 mA HART Loop Protocol Integration

The internal power conversion circuits utilize galvanic isolation to segregate primary line noise from sensitive internal backplane channels. This design prevents ground loops from interfering with field-side 4-20 mA HART loop protocol signals and analog I/O bus communications. By maintaining tight regulation across internal bus rails, the unit suppresses cross-talk and transient voltage spikes, preserving data integrity across distributed control system nodes.

Frequently Asked Questions

Q: What power output configuration does the module execute within the backplane?

A: The module conditions incoming AC voltage and feeds regulated DC power directly through dedicated backplane slots (P1-P2) rather than functioning as a standalone external bench supply.

Q: Can the module undergo live replacement during active operations?

A: Yes, when deployed in a dual-redundant power setup (occupying both P1 and P2 slots), the unit supports hot-swappable replacement without interrupting controller operations or system downtime.

Field Installation Guidelines

Verify that power is isolated or that the module is installed in a validated dual-redundant configuration before inserting the unit into assigned rack slots P1 or P2.
Ensure proper chassis grounding protocols are established on the target rack chassis to route high-frequency line noise directly to earth ground.
Confirm that ambient enclosure temperatures remain within the -20 deg C to +60 deg C operating threshold, or utilize the suffix -50 variant if ambient limits reach +70 deg C.
Align the module card edges precisely with the internal backplane guide rails and slide the unit firmly into place until the locking mechanism fully engages.

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