5X00226G03 Westinghouse | Ovation 24V DC Digital Output Module

Description Key Technical Specifications Parameter Specification Part Number 5X00226G03 Product Type Digital Output Module Series Ovation DCS Channels 16 outputs Output Type 24V DC sourcing (PNP) Output Current 0.5A per channel maximum Total Current 4A per common group maximum Load Type Resistive, inductive (with suppression) On-State Voltage 24V DC nominal (20-30V DC range) Off-State Leakage <1 mA Protection Short circuit, overcurrent, thermal shutdown Isolation 1500V optical (group to backplane) Field Power External 24V DC required (fused) Indicators Per-channel status LEDs (yellow) Response Time 1 ms typical Hot Swap Supported (with termination assembly) Mounting Ovation I/O rack Operating Temp 0°C to 60°C Condition New Surplus (Original Packaging) Product Introduction The WESTINGHOUSE 5X00226G03 is a 16-channel 24V DC digital output module for the Ovation distributed control system. It provides discrete control signals to field devices such as solenoid valves, motor starters, indicator lights, and alarm annunciators in power generation, water treatment, and industrial process applications. Each output is capable of 0.5A continuous current with built-in short circuit and overcurrent protection. The 5X00226G03 requires external 24V DC field power and features per-channel status indication via front-panel LEDs. Outputs are organized into groups with common returns, simplifying field wiring in control panels. This unit is new surplus, factory-sealed in original Westinghouse/Emerson packaging. Ovation components remain critical for power plant maintenance; contact us for current stock and firm pricing. Frequently Asked Questions (FAQ) Q: What’s the difference between 5X00226G03 and 1C31234G01? A: Both are Ovation digital output modules, but: 5X00226G03: 16-channel, later series, typically used in newer Ovation systems 1C31234G01: 16-channel, earlier series, common in legacy installations Functionally they’re similar—24V DC sourcing outputs, 0.5A per channel. The 5X00226G03 may have enhanced diagnostics or updated component selection. They are not interchangeable without verifying compatibility with your specific Ovation rack and firmware. Always match the exact part number from your existing system or consult Emerson for cross-reference. Q: Is the 5X00226G03 sourcing or sinking? A: Sourcing (PNP). The WESTINGHOUSE 5X00226G03 provides 24V DC to the load when the output is ON. The load connects between the output terminal and common (0V). This is standard for Ovation digital outputs. If your field devices expect sinking (NPN) inputs, you’ll need interposing relays or a different module. Always verify your field device wiring before connecting. Swapping sourcing and sinking without conversion guarantees the output won’t work—or worse, damages something. Q: Can the 5X00226G03 directly drive a solenoid valve? A: Yes, within limits. Each output on the 5X00226G03 handles 0.5A maximum. Small solenoids (under 12W at 24V) are fine. Larger solenoids or those with high inrush current need interposing relays. Also, inductive loads (solenoids, contactors) require snubber diodes across the coil—otherwise the back-EMF when the output turns off can damage the output transistor. The module has some protection, but it’s not unlimited. In power plants, we always use relays for solenoids above 10W. Cheap insurance. Q: What do the front panel LEDs indicate on the 5X00226G03? A: The 5X00226G03 has per-channel yellow LEDs: LED ON: Output commanded ON by controller, field power present LED OFF: Output OFF, or commanded ON but field power missing If the LED is ON but the field device doesn’t operate: Check field wiring (loose connection, open circuit) Verify 24V field power is present at module terminals Check load (shorted, open, or exceeding 0.5A) If the LED is OFF but the controller shows output ON, the 5X00226G03 output transistor may be failed. In my experience, 90% of “output not working” issues trace to field wiring or power, not the module. Check the basics first. Q: Does the 5X00226G03 support hot-swapping? A: Yes, with the termination assembly in place. The WESTINGHOUSE 5X00226G03 supports hot-swapping—you can pull the electronics module while the termination assembly remains wired and powered. However: All 16 outputs go offline during the swap The controller sees module fault and may take configured fail-safe actions For critical equipment, ensure they’re in a safe state before swapping I’ve swapped 5X00226G03 modules live in power plants, but always with operator approval and equipment in manual. The hardware handles it fine; the process doesn’t like losing control outputs. Hot-swap capability is for convenience, not for routine maintenance on live critical loops. Q: What external fusing is required for the 5X00226G03? A: The WESTINGHOUSE 5X00226G03 does not have onboard fuses. You must externally fuse: The 24V DC field power input to the module (typically 5-10A fast-blow) Individual output circuits as needed (per-channel fusing optional but recommended for critical loads) Standard practice: fuse each group common separately. If a field wire shorts to ground, the fuse blows instead of burning PCB traces on the 5X00226G03. I’ve seen modules destroyed because someone skipped output fusing. Don’t be that person. Q: What termination assembly works with the 5X00226G03? A: The 5X00226G03 requires a mating termination assembly (TA) for field wiring. Common options include: 5X00227G01 or similar (16-channel TA with screw terminals) Other variants depending on wire size and termination type The TA mounts on DIN rail, and the 5X00226G03 plugs into it from the front. You never wire directly to the module. If you’re replacing an existing module, the TA stays in place—just swap the electronics. Always verify your TA model matches the wiring configuration. Q: What’s the typical failure mode for these modules in power plants? A: In my experience with Ovation systems: Output transistor failure from surges or shorted field wiring (most common) Power supply section aging—after 10 years in hot cabinets Connector corrosion in coal plants (sulfur environment) Channel-specific failure (one output dies, others work) The WESTINGHOUSE 5X00226G03 is robust, but power plants are brutal. If you lose one channel while others work, the module is damaged—replace it. For critical plant systems (boiler controls, turbine auxiliaries), keep spares. When a module fails during an outage, you can’t wait for overnight shipping. Q: Can the 5X00226G03 be used with 48V DC field devices? A: No. The 5X00226G03 is rated for 24V DC nominal (20-30V range). Applying 48V will exceed the output transistor ratings and likely damage the module. If you have 48V field devices, you need either: Interposing relays (24V coil, 48V contacts) A different Ovation output module rated for 48V External signal converters The module is 24V only. Respect the voltage rating. Q: What’s the maximum cable length from module to field device? A: The 5X00226G03 drives 24V DC signals, so cable length is limited by voltage drop and noise. With 0.5A load and 18 AWG wire, voltage drop is about 0.02V per foot round trip. For 500 feet, that’s 10V drop—leaving only 14V at the load, which may not operate the device. Practical limit: 300-500 feet depending on load current and wire gauge. For longer runs, use larger wire or install remote I/O closer to field devices. The module doesn’t limit distance; physics does. Q: Does the 5X00226G03 require configuration in the Ovation software? A: Yes. The 5X00226G03 must be configured in the Ovation engineering tool: Assign module to I/O slot Configure output fail-safe states (on controller fault) Set output filtering (if needed) Map points to controller database If you’re replacing a failed module with an identical 5X00226G03, the configuration is already in the controller—just plug it in. For new installations, expect engineering time to configure. The module itself has no DIP switches; all setup is software-based. Q: What’s the difference between 5X00226G03 and 5X00226G01? A: The G03 suffix indicates a hardware revision or enhanced version. 5X00226G03 includes: Updated component sourcing Enhanced EMC protection Improved diagnostics Longer lifecycle availability The older 5X00226G01 may be obsolete or have different characteristics. Always match the exact part number from your existing system. Swapping a G01 for a G03 usually works and is often an improvement, but verify with Emerson’s compatibility documentation. In critical power plant applications, we prefer to match revisions exactly. P-HA-RPS-FAN03000 PLC P-HA-RPS-CH100000 PLC PCI-8366 PLC USAHEM-02-TE53 PLC 6AV6645-0DD01-0AX1 PLC ABB-CI854AK01 PLC Email: [email protected] Phone: 86 15340683922 Sales:Wu Jiedong Our products are guaranteed for 1 year, with new and original production stopped and imported spare parts. All prices listed on the official website are subject to confirmation by contact: Wu Jiedong (manager). Our product: brand new original packaging Our warranty: All new or repaired parts have a 12 month warranty period beginning Our payment: 100% telegraphic transfer of inventory items before shipment, conditions can be proposed! If you have any downtime spare parts that you cannot find, please feel free to call or use email to contact me. If there are issues that the product cannot solve, please contact me. Product prices can be negotiated. Please do not consider contacting me!