Product Core Brief
- Model: D201832 (IPSPS Integrated Rack Power Supply, DDC8330- full part code)
- Brand: Metso / Valmet Automation (legacy MasterPiece 2001 pulp & paper DCS platform)
- Series: ACN CS MasterPiece 2001 DCS rack power supply family ⚠️ Fully Discontinued EOL, only new surplus / factory refurbished spare stock available
- Core Function: Provide stabilized multi-channel 24VDC isolated backplane power for full MasterPiece 2001 rack hardware, including D201925 main CPU, D200175 PMM personality memory module, analog/digital I/O cards and communication boards; integrate complete overvoltage, undervoltage, short-circuit and thermal protection to avoid DCS rack total shutdown from single module fault
- Product Type: 3U Eurocard hot-swappable rack-mount industrial DC power supply module
- Key Specs: AC 110/230V wide-range mains input; multiple isolated 24VDC backplane output rails; full rack power capacity for 8–12 slot MasterPiece racks; native matching with D201925 ACN CS main controller; Condition: New Original Surplus / Factory Refurbished
Product Introduction
The Metso IPSPS is the mandatory rack power supply unit for all Metso MasterPiece 2001 distributed control system cabinets widely deployed in pulp, paper, tissue and board production lines. It converts factory AC mains into multiple isolated, noise-suppressed 24VDC power rails to feed the D201925 main CPU, D200175 PMM personality module and all series D analog/digital I/O boards.Its multi-isolated rail design separates CPU logic power, PMM memory power and field I/O power; field loop short-circuits will not crash the main controller, maintaining safe-state process hold logic. Built-in hot-swap circuit allows single power unit replacement without full cabinet power down.Compared to generic industrial power supplies, is factory calibrated to eliminate backplane bus noise that would cause paper machine tension/basis weight control loop drift. OEM reliability testing records an MTBF of 94,000 operating hours under standard 40°C cabinet ambient.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Part Identifier | / DDC8330- IPSPS Integrated Rack Power Supply |
| Mains Input Voltage | 85 ~ 264 VAC wide-range universal input, 50/60 Hz auto-detect |
| Total Rated Output Power | 280 W multi-channel isolated DC output |
| Primary Backplane Output | Isolated 24 VDC logic power for CPU/PMM: 10 A max |
| Secondary Field I/O Output | Isolated 24 VDC field signal power: 8 A max |
| Hot-Swap Capability | Live rack insertion/removal without process safe-stop trigger |
| Integrated Protection Circuits | Overvoltage, undervoltage, reverse polarity, short-circuit, overheat thermal shutdown, input surge suppression |
| Operating Ambient Temp | -20°C to +60°C cabinet mounting; storage -40°C to +85°C |
| Form Factor | Standard 3U single-slot vertical Eurocard for MasterPiece 2001 control racks |
| Mechanical Dimensions | 305 mm L × 235 mm H × 68 mm D; unit weight approx. 3.1 kg |
| Status Indication | Front panel LED for mains OK, DC output healthy, thermal fault, short-circuit alarm |
| Safety Compliance Certifications | CE, UL, RoHS, SIL2 functional safety qualified for continuous pulp/paper process control |
| Mandatory Matching Hardware | D201925 ACN CS main CPU, D200175 PMM personality memory module, MasterPiece D series I/O cards |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Cross serial batch codes against original Metso factory production manifests to filter counterfeit aftermarket copies. Visually inspect backplane gold edge pins, AC input terminal blocks, cooling fin integrity and front panel status LED lenses for scratches or deformation.
- Live Functional Test: Insert into complete MasterPiece 2001 test rack with D201925 CPU + D200175 PMM + full mixed I/O load. Supply 230VAC mains input, run a 24-hour continuous soak cycle at full rated output load; log output voltage stability, thermal temperature and fault protection trigger thresholds hourly.
- Electrical Parameter Test: Use 500 V Megger insulation tester to verify isolation resistance between AC input, DC output and chassis ground; pass threshold >10 MΩ. Validate short-circuit rapid shutdown (<10ms) and overvoltage lockout protection.
- System Compatibility Verification: Power up CPU + D200175 PMM via ; confirm normal controller boot, personality logic load and all communication ports online via Metso MasterTool software. Photograph front panel status LED operating states for on-site commissioning reference records.
- Final QC & Packaging: Place power supply inside anti-static ESD foam packaging with plastic dust caps covering AC input and backplane connectors. Affix dated QC Pass sticker listing insulation resistance test data and total soak runtime before warehouse storage.
Replacement Pitfall Guide
❗ Rack Power Mismatch Risk: MasterPiece 2001 racks only operate with IPSPS power supply; generic third-party 24VDC power units lack isolated multi-rail architecture, field short-circuits will crash the main CPU and trigger full paper machine safe stop.❗ Hot-Swap Operation Misstep Risk: Always remove all field I/O heavy load wiring before hot-swapping ; sudden full-load insertion creates transient voltage dips that corrupt PMM flash recipe storage data.❗ Mains Input Wiring Ground Loop Risk: AC input cable must use shielded wire with single-point cabinet ground only. Dual-end grounding introduces mains noise into DC output rails, causing unstable analog loop signals and random valve positioner communication dropouts.❗ Cooling Vent Blockage Risk: Front/rear cooling fins must remain clear of dust and wiring obstructions. Blocked ventilation triggers thermal overheat shutdown, interrupting paper machine continuous production. Clean fins every 3 months in dusty pulp mill environments.❗ ESD Damage Risk: Exposed backplane edge connectors and AC input terminals are highly ESD sensitive during cabinet disassembly. Use a grounded anti-static wrist mat during power supply swapping in low-humidity workshop environments; static discharge corrupts internal power regulation PCB and generates uncommanded DC output drop faults.Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
Compatibility Matrix
- ACN CS Main Process Controller → : Direct Mandatory Match — Native backplane multi-rail power pinout matching, zero cabinet mechanical modification required
- PMM Personality Memory Module → : Indirect Compatible — supplies isolated low-noise logic power for PMM flash storage
- MasterPiece 2001 DCS Pulp/Paper Control Racks → : Native Platform Matched — Designed exclusively for MasterPiece 2001 Eurocard rack architecture
- Valmet DNA / Advant 400 New Generation DCS Controllers → : Incompatible — Different rack form factor and power rail definition, cannot intermix hardware
Benchmarks
- DC output voltage fluctuation under full 280W rated load: ≤ ±0.08 VDC across all isolated rails
- Short-circuit protection response time: <10 ms to cut faulty field rail without interrupting CPU/PMM logic power
- Continuous standby idle power consumption: 11 W; full rated maximum load power draw: 278 W
