Product Overview
The Yokogawa 0950-3017 (PS605-0101) is a redundant power supply module designed for the CENTUM VP and CENTUM CS/CS3000 distributed control system (DCS) platforms. As a fundamental infrastructure component within the Yokogawa control station, the Yokogawa 0950-3017 provides regulated power to the CPU, I/O modules, and communication buses that form the backbone of critical process control architectures . The module’s design philosophy prioritizes availability: rather than relying on a single power source that could fail and bring down an entire rack, the Yokogawa 0950-3017 is engineered to operate in redundant pairs, with primary and standby units sharing the load and a seamless automatic switchover mechanism that keeps the control station running through a power module fault .
The Yokogawa 0950-3017 accepts a wide-range universal input of 100 to 240 VAC at 50/60 Hz, accommodating the varying power quality conditions found in industrial plants across different regions. Output is delivered through three isolated voltage rails—5 VDC for logic and CPU circuits, and ±12 VDC for analog channels and communication buses—with a combined rated output of approximately 45 W . The module is designed for hot-swap replacement, meaning a failed unit can be removed and a replacement inserted without shutting down the DCS rack or interrupting process control .
For facilities operating legacy Yokogawa CENTUM systems, the Yokogawa 0950-3017 represents a critical spare part. Although the product has reached discontinued status, it remains widely available through surplus and refurbished channels, and its continued availability supports the extended service life of control systems that are still actively running in refineries, chemical plants, and power stations worldwide .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | PS605-0101 (Part Number: 0950-3017) |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | Redundant Power Supply Module |
| Compatible Systems | CENTUM VP, CENTUM CS, CS3000 Control Stations |
| Input Voltage | 100–240 VAC, 50/60 Hz (Range: 85–264 VAC) |
| Input Power | Max 100 VA |
| Output Voltage 1 | 5 VDC (±5%), 4.5 A |
| Output Voltage 2 | +12 VDC (±5%), 0.5 A |
| Output Voltage 3 | -12 VDC (±5%), 0.5 A |
| Total Output Power | Rated 45 W |
| Redundancy Mode | 1:1 Primary/Standby, Hot-Swappable |
| Switchover Time | ≤ 3 ms (Standby to Active) |
| Cooling Method | Fanless, Natural Convection |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -20°C to +80°C |
| Dimensions (W×H×D) | Approx. 60 × 200 × 260 mm |
| Weight | Approx. 2.2 kg |
| Certifications | CE, cULus |