405A528G02
Description
Technical Specifications
Model: 405A528G02
Manufacturer: Westinghouse (Emerson)
System: WDPF / Ovation™ DCS (legacy)
Type: 12‑slot MultiBus chassis (backplane + enclosure)
Backplane: IEEE 796 Multibus (P1), 12 slots
Input Power: 230 VAC (50/60 Hz, single‑phase)
Cooling: Dual hot‑swap fans, front‑to‑back airflow
Mounting: 19” EIA standard rack
Dimensions (H×W×D): ~13.3 × 44.5 × 50.8 cm (5.25” × 17.5” × 20”)
Weight: ~15.9 kg (35 lb, empty)
Key Features: Hot‑swap modules, redundant power support, EMI shielding, integrated line filter
Difference from G01: G01 = 115/230 VAC auto‑sense; G02 = fixed 230 VAC
Application Fields
Power Generation: WDPF/Ovation DCS control room chassis for DPUs, I/O, and redundant power (e.g., 405A431G01/G02, 405A497H01).
Process Industries: Petrochemical, pulp & paper, cement — 19” rack DCS nodes.
Legacy Upgrades: Direct replacement for aging WDPF chassis, compatible with all original modules.
Installation & Wiring
Rack Mount: Secure to 19” EIA rack; ensure rear airflow clearance.
Power: Connect 230 VAC to chassis inlet; confirm voltage setting.
Module Insertion: CPU in slot 0; power supplies in dedicated slots; observe slot rules.
Backplane Cabling: Multibus P1 between chassis (multi‑chassis systems); proper grounding required.
Cooling Check: Verify fan operation; keep vents unblocked.
Operation & Diagnostics
PWR (Green): 230 VAC input normal.
FAN (Green): Fans operational.
FAULT (Red): Overheat, fan failure, or backplane voltage fault.
Module LEDs: Individual status for power, comms, and faults.
Maintenance & Safety
Maintenance: Clean filters quarterly; inspect backplane connectors; check fans monthly.
Safety: Disconnect AC before service; wait 5 min for capacitor discharge.
Limits: Ambient 0–50 °C; no blocked vents.
Product Status
Status: Obsolete (legacy WDPF); NOS, refurbished, and repair services available.
Compatibility: Fully interoperable with WDPF/Ovation modules (e.g., 405A431G series, 1C311xx I/O).
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