May 25, 2026

Emerson 1X00927H01 Product Description

The Emerson 1X00927H01 is a high-performance Processor Module Power Supply (EMPS) belonging to the Ovation DCS 1X series, originally engineered by Westinghouse and now part of Emerson’s automation portfolio. Designed as a dedicated power source for Ovation processor modules, it delivers stable, regulated DC power to ensure reliable operation of critical control logic, computing cores, and associated circuitry within the DCS cabinet. Built for heavy-duty industrial environments, this module integrates robust power conversion, comprehensive protection, and compact form factor, serving as a foundational component in power generation, oil and gas, chemical, and process automation systems.

Description

Emerson 1X00927H01 Product Description

1. Product Overview

2. Key Features

2.1 Precision Power Conversion for Processor Modules

Optimized to supply regulated DC power exclusively to Ovation processor units, the 1X00927H01 ensures tight voltage tolerance, low ripple, and consistent current delivery. This precision prevents voltage fluctuations or noise from disrupting processor performance, data integrity, or real-time control operations—critical for maintaining loop stability and system accuracy in high-stakes processes.

2.2 Wide-Range Input & High Efficiency

Accepts universal AC input (85–264VAC, 47–63Hz), accommodating global grid standards and voltage variations common in industrial sites. High-efficiency conversion (up to 88%) minimizes energy loss and heat generation, reducing thermal stress on both the module and adjacent components within the cabinet.

2.3 Comprehensive Electrical Protection

Equipped with a full suite of safety mechanisms to safeguard the module and connected processor hardware:

Overload Protection: Automatically limits current during excessive load conditions and recovers once the fault is cleared.
Short-Circuit Protection: Instantly shuts down output to prevent catastrophic damage from short circuits in the processor or wiring.
Overvoltage Protection: Disables output if voltage exceeds safe thresholds, protecting sensitive processor circuitry.
Over-Temperature Protection: Reduces power or shuts down to avoid thermal damage during high ambient temperatures or sustained heavy loads.
Reverse-Polarity Protection: Prevents damage from incorrect DC wiring connections.

2.4 Compact & Rugged Industrial Design

Form Factor: DIN-rail mountable with a compact footprint, optimized for installation in standard Ovation DCS cabinets to save valuable space.
Environmental Durability: Conformal coating protects the PCB against moisture, dust, and corrosion; compliant with IEC 60068-2-6 (vibration) and IEC 60068-2-27 (shock) standards, ensuring reliability in high-vibration industrial environments.
Operating Temperature: 0°C to +55°C, with storage temperature ranging from –40°C to +85°C, adapting to extreme industrial climate conditions.

2.5 Hot-Swap & Redundancy Compatibility

Supports hot-swap replacement on a DIN rail, allowing maintenance or replacement without shutting down the entire DCS system—minimizing downtime for critical processes. It also integrates seamlessly with Ovation’s redundant architecture, supporting parallel operation for enhanced reliability in mission-critical applications.

2.6 Status Diagnostics & System Compatibility

Front-panel LED indicators provide clear, at-a-glance status for input power, output health, and fault conditions (overload, over-temperature, short circuit). Fully compatible with Emerson Ovation DCS (v3.7+), OCR-series controllers, and 1X-series I/O modules, ensuring interoperability and ease of system expansion or spare parts management.

3. Technical Specifications

Model: 1X00927H01
Brand: Emerson (Ovation / Westinghouse)
Type: Processor Module Power Supply (EMPS)
Input Voltage: 85–264VAC, 47–63Hz (universal industrial input)
Output Voltage: Regulated DC (precision-tuned for Ovation processors)
Efficiency: Up to 88% at full load
Protection Features: Overload, short circuit, overvoltage, over-temperature, reverse polarity
Cooling: Natural convection (fanless, maintenance-free)
Mounting: 35mm standard DIN rail
Operating Temperature: 0°C to +55°C
Storage Temperature: –40°C to +85°C
Humidity: 5%–95% RH, non-condensing
Vibration/Shock: Compliant with IEC 60068-2-6 / 2-27
Certifications: UL, CE, RoHS, IEC 61000 (EMC)
Protection Class: IP20 (cabinet installation)
Dimensions: Compact DIN-rail form factor (industry-standard for Ovation cabinets)
Weight: Approx. 1.0–1.4 kg
Warranty: 12-month original manufacturer warranty

4. Product Advantages

4.1 Processor-Centric Reliability

Tailored specifically for Ovation processor modules, delivering clean, stable power to eliminate control disruptions and ensure uninterrupted real-time computing.

4.2 Low Maintenance & High Availability

Fanless design eliminates fan failure risks; hot-swap capability enables online replacement, reducing maintenance overhead and unplanned downtime.

4.3 Harsh Environment Resilience

Rugged construction, wide temperature tolerance, and conformal coating ensure long-term performance in dusty, humid, or vibration-prone industrial settings.

4.4 Global Compatibility & Safety

Universal AC input and international safety/EMC certifications enable deployment across global sites while meeting strict industrial compliance standards.

5. Applications

Power Generation: Thermal, hydro, and nuclear power plants—powers Ovation processor modules in DCS cabinets for turbine control, boiler management, and safety interlock systems.
Oil & Gas: Offshore platforms, onshore fields, and pipeline control rooms—supports processor units in remote I/O cabinets and central control systems.
Chemical & Petrochemical: Refineries, chemical plants, and fertilizer facilities—provides reliable power for process control processors in corrosive and high-EMI environments.
Process Industries: Pulp and paper, metals and mining, and water treatment—powers critical DCS processors for automation and monitoring systems.

6. Installation & Maintenance

6.1 Installation

Mount on a standard 35mm DIN rail in a clean, ventilated DCS cabinet. Maintain adequate vertical clearance for airflow and position away from high-power motors or transformers to minimize EMI. Secure the module firmly and allow spacing between adjacent modules for cooling.

6.2 Wiring

Use appropriately gauged copper conductors for AC input and DC output. Strictly observe polarity on DC connections. Install external overcurrent protection (fuse/circuit breaker) on both input and output circuits. Separate AC/DC wiring from high-voltage cables to reduce electromagnetic interference.

6.3 Routine Maintenance

Weekly: Inspect LED status indicators and physical condition for signs of overheating or damage.
Monthly: Check terminal tightness and clean ventilation areas of dust buildup using a dry, soft cloth.
Quarterly: Verify load conditions and review system diagnostics for abnormal voltage/current trends.

6.4 Fault Handling

No Output / Fault LED Active: Verify AC input supply, check for short circuits or overloads, and confirm ambient temperature is within range. Disconnect loads and restart; replace the module if faults persist.
Unstable Voltage: Check input voltage range, load capacity, and cabinet cooling; reduce excess load or improve ventilation as needed.

7. Ordering Information

Model: 1X00927H01
Brand: Emerson (Ovation)
Type: Processor Module Power Supply (EMPS)
Compatibility: Ovation DCS (v3.7+), OCR-series controllers, 1X-series I/O modules
Packaging: Original anti-static packaging with operation manual, certificate of compliance, and installation hardware
Warranty: 12-month factory warranty with global technical support

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