PS31A YOKOGAWA CENTUM DCS Datasheet & Technical Manual

PS31*A YOKOGAWA CENTUM VP Regulated Power Supply Module

PS31*A YOKOGAWA CENTUM VP Regulated Power Supply Module

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YOKOGAWA PS31*A Power Supply Module Configured for power distribution in CENTUM VP and CS 3000 DCS platforms, the YOKOGAWA PS31*A...

رمز المنتج: PS31*A

Manufacturer: Yokogawa
Product No.: PS31*A
Product Type: Power Supplies
Product Origin: Japan
Payment:T/T, Western Union
Weight: 1200g
Shipping port: Xiamen
Warranty: 12 months

وصف التقييمات

YOKOGAWA PS31*A Power Supply Module

Configured for power distribution in CENTUM VP and CS 3000 DCS platforms, the YOKOGAWA PS31*A (PS31A Power Supply Module) provides direct physical/electrical execution of regulated DC voltage conversion and backplane power management.

Suffix Breakdown & Model Matrix

PS31: Base model identifier for regulated 24 V DC power supply functionality.
*A: Hardware revision and interface designation indicating compatibility with standard DCS power distribution rack backplanes.

Hardware Specifications

Parameter	Specification
Model	PS31*A
Brand	YOKOGAWA
Origin	USA
Weight	1.2 kg
Dimensions	457 × 51 × 178 mm
Operating Temp	-10 deg C to +55 deg C
Power Consumption	100–240 V AC / 24 V DC
Output Voltage	24 V DC regulated
Redundancy	Dual-redundant capable
Protection	Over-voltage, over-current, surge

DCS Process Control & Connectivity Attributes

The PS31*A serves as the core power delivery component, converting site-level AC or DC inputs into a stabilized 24 V DC bus for distributed control hardware. To maintain uptime in mission-critical environments, the module supports dual-redundant configuration, allowing for seamless load sharing and instantaneous failover between primary and secondary power paths. High-frequency electrical isolation between input and output stages mitigates potential line-borne noise, while integrated surge protection logic prevents transient voltage spikes from reaching sensitive I/O and controller modules. The unit features continuous voltage monitoring and diagnostic signaling to report power status back to the DCS engineering station, facilitating predictive maintenance.

Frequently Asked Questions

Q: Can the PS31*A module be hot-swapped while the system is powered? A: Yes, the module supports hot-swapping within the DCS power rack provided that the redundant partner module is actively carrying the load. Always confirm the health of the standby supply before removing the module to avoid power drops.

Q: How is the redundancy load-sharing managed between two modules? A: The modules utilize internal diode-ORing or active load-sharing circuitry to ensure that if one module fails, the second unit assumes the full load requirement without interruption to the 24 V DC backplane voltage.

Q: Is the output voltage adjustable for fine-tuning? A: The output is factory-set to a regulated 24 V DC nominal level to match standard DCS backplane requirements; internal voltage adjustment is not required nor recommended for field maintenance.

Field Installation Guidelines

Mounting: Secure the module into the designated rack slot, ensuring the backplane connectors are fully seated. Fasten all locking screws to establish a robust ground bond between the module chassis and the cabinet earth.
Wiring: Ensure input cabling is sized according to the peak power demand and local electrical code. Terminate high-voltage AC inputs using insulated lugs and maintain physical separation from low-voltage signal lines.
Isolation: Adhere to cabinet-level grounding standards by bonding the PS31*A chassis to the master ground bus, minimizing common-mode noise transfer to the sensitive DC distribution rails.
Thermal Management: Provide adequate convection paths within the cabinet. Ensure no obstructions block the air intake or exhaust vents, maintaining the ambient temperature below 55 deg C to ensure rated service life.

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