Specifications

• Manufacturer: Westinghouse (Emerson)

• Model: 3D04153G01

• Type: WDPF Disk & Floppy Drive Assembly

• Integrated Drives:

  • Hard Disk: Seagate ST225 (25MB)

  • Floppy Drive: Panasonic JU-475-5 (5.25-inch)

• Voltage: 115VAC

• Compatible System: WDPF DCS (not Ovation/DeltaV)

• Mounting: Standard WDPF rack slot

• Status: Discontinued (EOL); refurbished/used only

Key Features

1. Integrated Storage: Combines 25MB HDD and 5.25-inch floppy drive in a single assembly for WDPF station use.

2. System Boot & Storage: Provides primary boot media and mass storage for WDPF operating software, control programs, and historical data.

3. Data Backup & Restore: Floppy drive supports offline backup/restore of configuration files and critical data.

4. Rack-Mount Design: Fits standard WDPF rack enclosures, connecting to the station’s backplane for power and data interface.

5. Legacy Reliability: Built for industrial control environments; robust mechanical design for long-term operation in control rooms.

Applications

• WDPF DCS Controller Stations in thermal power, nuclear power, petrochemical, and heavy industry plants.

• Legacy System Maintenance: Replacement of failed disk/floppy assemblies in aging WDPF installations.

• Data Logging & Program Storage: Supports WDPF DPU (Distributed Processing Unit) operation, including OS loading and application execution.

Related WDPF System Parts

• 3D04141G01/G02: Dual redundant power supply assemblies.

• 3D04142G02: DC power distribution panel.

• 3D04143G01: Bracket & interface assembly.

• 3D04146G01: Dual I/O power supply tray.

Notes

• This assembly is exclusive to WDPF DCS and incompatible with Ovation, DeltaV, or other modern Emerson DCS platforms.

• Standard repair lead time: 2–4 weeks; rush repair available.

• All installation must follow Emerson/Westinghouse WDPF technical specifications and site safety procedures.