EMERSON 1X00707H01 Product Description

I. Product Overview

The EMERSON 1X00707H01 is a high-performance DIN-rail power module of the 1X series from the original Westinghouse (now Emerson) Ovation DCS system. It is specifically designed to provide stable and pure 24VDC power for the I/O cabinets and control units of the Ovation system. It is the core power supply unit that ensures the continuous and reliable operation of controllers, I/O modules, communication interface cards, and on-site sensors/actuators. The module adopts industrial-grade wide-voltage input, efficient isolation voltage regulation and multiple protection designs, featuring high conversion efficiency, low ripple output, wide temperature operation, and redundant parallel capabilities. It is widely used in power, chemical, oil and gas, metallurgy and other process industrial scenarios that have strict requirements for power continuity, stability and safety. It is an indispensable standard power supply spare part and expansion supporting unit for the Ovation DCS system. 

II. Core Functions

1. Wide voltage input + stable output, stable power supply suitable for a wide range

Supports dual input of wide voltage range AC / DC, AC 85–264VAC (43–67Hz), DC 90–375VDC. It can adapt to global industrial power grids and backup DC power sources, and is not affected by voltage fluctuations, instantaneous surges or frequency deviations. The output is precisely stabilized at 24VDC, with a rated current of 10A and a rated power of 240W. The ripple noise is ≤ 50mV, providing pure and interference-free DC power for Ovation controllers, I/O modules and on-site instruments, avoiding control errors, communication interruptions or equipment malfunctions caused by voltage drift or interference. The output has automatic constant voltage and current-limiting characteristics. When the load changes dynamically, the voltage fluctuation is ≤ ±1%, ensuring stable power supply under all working conditions.

2. Multiple electrical protections, comprehensive protection for equipment safety

Built-in five protection mechanisms including overload, short circuit, overvoltage, overtemperature and reverse polarity. It can quickly respond to abnormal conditions: when the load is overloaded (>110% rated current), it automatically limits the current, and automatically recovers after the fault is resolved; when the output is short-circuited, it immediately cuts off the output and locks it, and after troubleshooting, it restarts; when the output is overvoltage (>28VDC), it immediately shuts off to prevent the back-end equipment from burning out; when the internal temperature > 85℃, the overheat protection is triggered, and it automatically recovers after cooling; when the input is reverse polarity, the circuit locks itself to avoid module burning out. The protection actions are precise and responsive, preventing fault chain propagation, and fully protecting the core hardware of the Ovation system and on-site equipment safety.

3. High efficiency isolation + low-noise cooling, long-term operation in harsh environments

Uses high-frequency isolation transformers + photoelectric coupling isolation design. The electrical isolation strength between input and output is up to 2500V AC/1min, effectively blocking grid-side interference, ground potential difference and common-mode signals from entering, preventing power supply circuit interference from affecting the control accuracy and communication stability of the DCS system. The conversion efficiency is up to 86%, and the low-power design reduces heat generation; uses natural convection cooling (without fan), avoiding fan dust accumulation, aging and resulting in faults, running with zero noise and no maintenance, suitable for harsh industrial environments with high dust, high humidity, salt fog, etc. The surface of the circuit board is coated with a thick three-proof coating (anti-humidity, dust-proof, corrosion-proof), further enhancing insulation performance and service life in extreme conditions.

4. Redundant parallel + hot-swappable, ensuring continuous power supply without interruption

Supports dual-module redundant parallel operation. Two power modules of the same model operate in parallel, distributing the load evenly. When one module fails, the other automatically takes over all the loads seamlessly, with a switching time of ≤ 10ms. There is no power interruption or data loss, meeting the "zero downtime" operation requirements for power stations, chemical plants and other critical processes. The module adopts standard DIN rail installation + hot-swappable design, which can be replaced and maintained online without shutting down the DCS system, not affecting the normal operation of other equipment, reducing planned downtime and lowering maintenance costs.

5. Wide temperature resistance + intelligent diagnosis, suitable for harsh conditions and easy maintenance

Uses industrial-grade wide-temperature components, with a working temperature range of **-20℃ ~ +60℃ and a storage temperature range of - 40℃ ~ +85℃. It can withstand high and low temperature shocks and drastic temperature fluctuations. The mechanical structure is strengthened to have anti-vibration and anti-shock capabilities, meeting IEC 60068-2-6/2-27 standards, and can operate stably in vibration, high temperature and low temperature extreme industrial sites. The panel is equipped with power supply, operation and fault LED indicators, which can directly display the input status, normal output, overload / short circuit / overheat faults; The system end supports remote monitoring of power status, allowing real-time viewing of output voltage, current, temperature, and fault records, facilitating remote operation and predictive maintenance.

6. Standard compatibility + Compact design, flexible and efficient installation expansion

Compatible with standard 35mm DIN rails, easy installation, secure fixation, saving cabinet space; compact size design (60mm×125mm×63mm), supporting high-density arrangement, improving cabinet space utilization. Perfectly compatible with Ovation full series controllers (OCR1100/OCR3000), 1X series I/O modules and communication interface cards, with parameters consistent and interchangeable with the same series power modules (such as 1X00781H01L), facilitating project expansion, spare parts replacement, and upgrading of old equipment, providing convenient and efficient protection for users' long-term investment.

III. Technical Parameters

Model: 1X00707H01

Brand: Emerson (formerly Westinghouse)

Series: Ovation DCS 1X series power module

Input voltage: 85–264VAC (43–67Hz) / 90–375VDC (wide range)

Output voltage: 24VDC (stable, ±1% accuracy)

Output current: 10A (rated), maximum 12A (peak)

Rated power: 240W

Conversion efficiency: Up to 86% (rated load)

Ripple noise: ≤50mV (peak-to-peak)

Electrical isolation: 2500V AC/1min (input - output)

Protection functions: Overload, short circuit, overvoltage, overtemperature, reverse polarity protection

Heat dissipation method: Natural convection (no fan)

Installation method: Standard 35mm DIN rails

Operating temperature: -20℃ ~ +60℃

Storage temperature: -40℃ ~ +85℃

Environmental humidity: 5%~95% RH (no condensation)

Vibration / shock resistance: Compliant with IEC 60068-2-6/2-27 standards

Electromagnetic compatibility: CE, UL 508, CSA, RoHS certification

Protection level: IP20 (installed in cabinet)

Physical dimensions: 60mm×125mm×63mm (width × height × depth)

Weight: Approximately 0.8kg

Warranty: 12 months original warranty

IV. Product Features

1. Wide voltage input + Precise voltage regulation, compatible with global power grids

Extremely wide AC/DC input range, compatible with various industrial power supply environments; 24VDC high-precision regulated output, low ripple noise, providing pure and stable power for DCS systems, avoiding equipment failures caused by voltage fluctuations.

2. Five protections + Isolation design, safe and reliable

Overload, short circuit, overvoltage, overtemperature, reverse polarity all protection, automatic response to faults, complete safety protection; Input and output high-voltage isolation, effectively resisting grid interference, ensuring the safety of the power supply circuit and the control system.

3. High efficiency low noise + Wide temperature resistance and vibration resistance, suitable for harsh conditions

High conversion efficiency, natural cooling without fan, maintenance-free, zero noise; wide temperature working range + reinforced mechanical structure, able to withstand high and low temperatures, vibration, dust, etc., stable and reliable long-term operation.

4. Redundant hot-swappable + Intelligent diagnosis, convenient operation

Dual-module redundant parallel connection, millisecond-level switching, no power interruption; supports online hot-swappable replacement, no need for shutdown; LED indicator lights + remote status monitoring, quick fault location, reducing operation costs and downtime risks.

5. Standard compatibility + Compact design, flexible expansion

Standard DIN rails installation, compact size saves space; Perfectly compatible with the entire series of Ovation equipment, it can be interchanged with the same model power supply, facilitating project expansion, spare part replacement, and ensuring the protection of long-term investment.

V. Application Scope

1. Power Industry

Ovation DCS cabinets for power plants such as thermal power plants, hydropower plants, and nuclear power plants, providing 24VDC power for controllers, I/O modules, communication cards, on-site solenoid valves, indicator lights, sensors, etc., suitable for high-temperature, strong electromagnetic interference, and high-reliability requirements of power station environments, ensuring continuous and stable power supply for unit control and monitoring equipment.

2. Chemical Industry

I/O stations for petroleum refining, fine chemicals, coal chemical, and fertilizer production facilities, providing power for Ovation system I/O modules, positioners, on-site transmitters, solenoid valves, safety interlock equipment, etc., capable of operating stably in corrosive gases, dampness, explosion-proof, and strong interference environments, ensuring the safety of production process control equipment power supply.

3. Oil and Gas Industry

Ovation systems for onshore oil and gas field stations, field extraction platforms, long-distance pipelines, LNG receiving stations, providing power for remote I/O stations, pipeline RTUs, tank monitoring instruments, compressor unit control modules, etc., able to withstand harsh environments such as sandstorms, salt fog, extreme temperature differences, and vibration shocks, ensuring the stability of power supply for oil and gas production and transportation equipment.

4. Metallurgical Industry

Ovation I/O cabinets for steel, non-ferrous metal smelting blast furnaces, heating furnaces, rolling production lines, continuous casting equipment, providing power for on-site sensors, actuators, control modules, communication equipment, etc., adapting to harsh working conditions such as dust, high-temperature radiation, strong electromagnetic interference, and vibration shocks, ensuring the reliable operation of metallurgical process control equipment.

5. Other Industrial Scenarios

Power supply for Ovation system control modules of large water treatment plants, water quality monitoring instruments, valve actuators, etc.; power supply for control systems of cement manufacturing kilns, mills, preheaters, etc.; power supply for control and monitoring modules of papermaking and pharmaceutical production lines; power supply for energy storage systems and photovoltaic/fossil wind turbine inverters of new energy power stations, etc., suitable for various industrial scenarios requiring high-reliability 24VDC power supply.

VI. Installation and Maintenance

1. Installation

Select a standard 35mm DIN rail position within the Ovation cabinet, reserve space for ventilation (≥5cm), and keep away from high-power frequency converters, motors, transformers, etc., which are strong interference sources. Align the bottom snap of the module with the rail and push it in, hearing a "click" sound indicates a secure fix, ensuring the installation is vertical and without looseness. When installing multiple modules densely, maintain a spacing of ≥2cm to ensure heat dissipation and avoid affecting power efficiency and lifespan due to high temperatures.

2. Wiring

For the input side, use multi-strand copper core insulated wires to connect to the mains or DC power supply, distinguish the live wire, neutral wire, and ground wire, tighten the terminals moderately to avoid loosening and overheating; for the output side, connect to the Ovation backplane or 24VDC load,严禁reverse the positive and negative poles， and it is recommended to connect in series with an air switch for easier maintenance. Separate the input and output cables， keeping a distance of ≥30cm from the power cable to reduce electromagnetic interference. After wiring， check the lines to ensure no short circuits or incorrect connections， and before powering on， use a multimeter to measure the input/output voltage to be normal before putting it into operation.

3. Daily Maintenance

Regularly (weekly) inspect the LED indicator light status， module appearance， and connection terminals， check for overheating， loosening， corrosion， and dust accumulation； monitor the output voltage， current， temperature， and fault records daily through remote monitoring of the system； regularly (monthly) use a dry soft cloth or low-pressure clean air to clean surface dust， shorten the cleaning cycle in high-dust/high-humidity/salt fog environments (every two weeks)， and prohibit wiping with corrosive liquids； Quarterly inspections should be conducted to check the tightness of the terminal connections, the insulation condition of the cables, and the fixation status of the DIN rails, to prevent faults caused by loosening or aging insulation.

4. Fault Handling

No output (fault indicator light on): Check if the input power is normal, if the connections are loose / short-circuited, and if the load is overloaded / short-circuited. Restart the module after disconnecting the load. If the fault persists, replace the module;

Abnormal output voltage: Check if the input voltage is out of range, if the load is too heavy, and if the module temperature is too high. Reduce the load or improve heat dissipation, and replace the module if necessary;

Frequent redundant switching: Check if the output parameters of the two modules are consistent, if the load fluctuates too much, and if the modules are aging. Calibrate the parameters or replace the faulty module.

VIII. Order Information

Product Model: 1X00707H01

Brand: Emerson (艾默生)

Series： Ovation DCS 1X Series

Product Type： DIN Rail-mounted 24VDC High-performance Power Module

Function： Wide-range AC/DC input， 24VDC regulated output， multiple electrical protections， isolation anti-interference， redundant parallel， hot-swappable maintenance， core power supply for DCS system

Compatible System： Ovation DCS System (compatible with versions 3.7 and above， compatible with OCR1100/OCR3000 controllers and 1X series I/O modules)

Packaging： Factory original anti-static sealed packaging， including installation manual， certificate of conformity， terminal connections， warranty card

Warranty： 12-month original warranty， providing 7×24-hour technical support and after-sales maintenance services