Description
At-A-Glance Executive Brief
- Model: 1X00416H01 (WH5-2FF)
- Brand: Emerson Ovation (Westinghouse)
- Part Type: Chassis plug-in power supply module
- Lifecycle status: Obsolete OEM, stocked new surplus and refurbished
- System compatibility: Ovation DPU & I/O rack crate
- Input: 100–240VAC, 50/60Hz
- Output: Dual independent 24VDC outputs (Main 24VDC/12A, Aux 24VDC/8A)
- Core function: Fanless chassis power supply, provide main and auxiliary 24VDC power for Ovation DPU and I/O modules, support redundant power configuration
Technical Introduction
The 1X00416H01 WH5-2FF is a fanless plug-in power supply for Emerson Ovation DCS systems widely deployed in thermal power, combined cycle and process plants. It accepts universal AC input and delivers two isolated 24VDC power rails, separately supplying main controller power and auxiliary I/O contact wetting power. Adopting fanless conduction cooling design, it eliminates fan failure risks. Built-in diode auctioneering supports redundant parallel operation to remove single point of failure. It monitors output voltage and fault status, and reports alarms to Ovation system. Conformal coating is applied to withstand corrosive plant environments, ensuring stable power supply for DPU and I/O cards.
Engineer’s Takeaway This is slot-mounted crate power supply (different from DIN rail 1X00781H01L). Fanless design, no rotating fan, high reliability. 1X00416H01 is WH5-2FF, while 1X00416H03 is WH5D-2FF variant with different output rating, they cannot directly swap. Redundant configuration is common in critical DCS cabinets.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Model | 1X00416H01 (WH5-2FF) |
| Input Voltage | 100–240 VAC, 50/60Hz |
| Output | Dual 24VDC: Main 12A, Aux 8A |
| Cooling | Fanless conduction cooling |
| Protection | Overvoltage, undervoltage, overcurrent, short circuit, thermal protection |
| Coating | Conformal coating for harsh industrial environment |
| Mounting | Ovation crate plug-in slot |
| Diagnostics | Power status LED, fault alarm reporting |
| Operating Temperature | -20℃ ~ +60℃ |
Field Engineer’s Tech Notes
- Before replacement, switch to redundant standby power supply to avoid crate power loss and unit disturbance.
- This module uses fanless heat conduction cooling. Keep cabinet ventilation and heat sink clean; dust accumulation will degrade heat dissipation.
- Inspect backplane connector pins for bending or oxidation before power on.
- After installation, measure both main and auxiliary 24VDC output under load, confirm no power fault alarms in Ovation.
- Do not mix WH5-2FF and WH5D-2FF power supplies in one redundant pair; mismatched units cause current imbalance.
Adaptive QA & Testing Protocol
Each unit undergoes bench power testing. Wide AC input test verifies stable dual 24VDC outputs under partial and full load. Overload, short-circuit and thermal protection functions are validated. Power status LED and fault alarm function 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: What is the difference between 1X00416H01 and 1X00416H03? A: 1X00416H01 is WH5-2FF; 1X00416H03 is WH5D-2FF with different output current rating. Hardware and backplane pinout differ, not interchangeable.
Q: What warranty applies to new surplus or refurbished Emerson 1X00416H01? A: All units carry a 12-month hardware warranty. Warranty excludes damage from overload, input surge, backplane short circuit and poor cabinet heat dissipation.
Q: Can 1X00416H01 work in redundant configuration? A: Yes, it supports redundant parallel operation for Ovation DPU and I/O crate.
Q: What lead time applies to this obsolete Ovation WH5-2FF 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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