Description
At-A-Glance Executive Brief
- Model: 1X00024H01 (WH1-2FF)
- Brand: Emerson Ovation (Westinghouse)
- Part Type: Rack Mount Power Supply Module
- Lifecycle status: Obsolete OEM, stocked new surplus and refurbished
- System compatibility: Ovation DCS chassis / DPU rack
- Rated Power: 500W
- Core function: Convert universal AC input to dual independent regulated 24VDC outputs, supply power to Ovation DPU and I/O modules, supports redundant power configuration
Technical Introduction
The 1X00024H01 WH1-2FF is an industrial-grade rack power supply for Ovation distributed control systems widely used in power generation and process industries. It accepts wide-range AC mains input and provides two isolated 24VDC power rails, separating main control power and auxiliary I/O power. Built-in comprehensive circuit protection and status monitoring enable it to work in redundant parallel mode to eliminate single point of failure. Front panel LED indicators show operational status, fault and alarm signals. It supplies stable, filtered DC power for Ovation DPU controllers and I/O cards, ensuring continuous operation of critical boiler, turbine and process control loops.
Engineer’s Takeaway This WH1-2FF power supply supports redundant configuration. When replacing, verify the load current of the whole crate to avoid overloading. It has built-in fan for cooling; dust accumulation on fan and heatsink is the most common failure cause for used units. Not interchangeable with other Ovation power supply variants with different pinout and power rating.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1X00024H01 (WH1-2FF) |
| Input | 100–240 VAC, 50/60Hz |
| Output | Dual 24VDC isolated outputs |
| Max Output Power | 500W |
| Cooling | Internal fan cooling |
| Protection | Overvoltage, undervoltage, overtemperature, short-circuit, current limiting |
| Diagnostics | Front panel LED status, fault alarm reporting |
| Mounting | Ovation standard rack chassis |
| Operating Temp | -20°C ~ +50°C |
Field Engineer’s Tech Notes
- Before replacement, switch over to redundant power supply if available to avoid rack power loss and unit trip.
- Inspect fan rotation and air filter for dust buildup; clogged cooling leads to over-temperature shutdown.
- Check chassis backplane power pins for corrosion or bending before powering up the new module.
- Verify output voltage after installation; confirm no power fault alarms in Ovation system before returning online.
- Do not mix different power supply models in the same redundant pair; mismatched models may cause current imbalance.
Adaptive QA & Testing Protocol
Each unit undergoes bench power testing. Input AC voltage variation test validates stable 24VDC output under full and partial load. Overload, short-circuit and overtemperature protection functions are verified. Fan operation and front panel LED status are checked. Backplane connector inspection checks for bent or corroded pins. Test reports and short validation videos are available upon request.
Buyer’s FAQ
Q: Can 1X00024H01 be used in redundant configuration? A: Yes, this WH1-2FF model supports redundant parallel operation for Ovation DCS racks.
Q: What warranty applies to new surplus or refurbished Emerson 1X00024H01? A: All units carry a 12-month hardware warranty. Warranty excludes damage from overloading, input surge, backplane short circuit and fan blockage caused by dust.
Q: What is the common failure point of this power supply? A: The built-in cooling fan. Long-term dust accumulation causes fan stalling and over-temperature trips.
Q: What lead time applies to this obsolete Ovation WH1-2FF power supply? A: Stocked units ship within 1–3 working days. If out of stock, sourcing lead time can extend to 4–8 weeks subject to inventory availability.
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