Product Details
The Yokogawa PS11*C, also cataloged as the PS11 Power Supply Module, operates as a dedicated hardware component for AC to DC power conversion and regulated 24 VDC bus distribution within Yokogawa CENTUM DCS subrack systems. The module accepts wide-range AC line input and generates a regulated 24 VDC output to power backplane electronics, I/O cards, and internal bus circuits with an operating efficiency exceeding 85 %. Integrated overcurrent and short-circuit protection circuits maintain rail stability during downstream electrical faults.
Suffix Breakdown & Model Matrix
| Code Element | Specification / Description |
|---|---|
| PS11 | Base model designation for power supply module series |
| *C | Style code Revision C denoting physical circuit layout, heat sink footprint, and internal protection revisions |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PS11*C |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.8 kg |
| Dimensions | 150 mm x 100 mm x 50 mm |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Internal dissipation / >85 % energy conversion efficiency |
| Input Voltage | Wide-range AC line power |
| Output Voltage | Regulated 24 VDC |
| Circuit Protection | Overcurrent, short-circuit protection |
| System Compatibility | Yokogawa CENTUM DCS rack chassis |
Power Distribution and Channel Isolation Infrastructure
The PS11*C module provides regulated 24 VDC power directly to field I/O racks, supporting 4-20 mA HART loop protocol instruments and field communications. Internal transformer isolation decouples AC power inputs from sensitive backplane logic buses, suppressing line noise and high-voltage transients. The isolated power rail maintains voltage stability across channel-to-channel isolation circuits on connected analog and digital I/O modules, preventing power line fluctuations from compromising signal conversion accuracy across field instrument loops.
Frequently Asked Questions
Q: How does the PS11*C handle downstream output short-circuit conditions?
A: The internal protection circuitry detects overcurrent or short-circuit events and automatically clamps or shuts down the 24 VDC output rail to protect backplane circuits until the fault condition is cleared.
Q: Can the PS11*C module be hot-swapped while the DCS subrack is energized?
A: Hot-swapping is permitted only in dual-redundant power configurations where a parallel power supply module actively supports the full 24 VDC load during extraction.
Q: What grounding configuration is required for the PS11*C module?
A: Connect the module chassis ground terminal directly to the central cabinet functional earth (FE) ground bar using low-impedance copper conductors to ensure proper noise filtering.
Field Installation Guidelines
- Rack Mounting: Align the PS11*C module with the guide rails in the dedicated power supply slot of the chassis (150 mm x 100 mm x 50 mm). Slide the unit into place until rear connectors seat completely, then tighten upper and lower panel screws.
- AC Input Wiring: Route primary AC line power conductors through dedicated wire channels, maintaining physical separation from low-voltage DC and communication lines to mitigate noise coupling.
- Grounding: Connect the module ground lug directly to the main cabinet functional earth (FE) ground bus using a short, low-impedance grounding strap.
- Thermal Management: Maintain unobstructed airflow clearance above and below the module housing to allow heat sink dissipation and ensure ambient temperatures stay between 0 and 60 deg C under continuous full-load operations.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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