The YOKOGAWA PW301 is an industrial-grade power supply unit specifically designed for Yokogawa’s distributed control systems (DCS), such as the CENTUM VP series, and other industrial automation equipment. Its core function is to provide stable, reliable DC power to critical components like DCS controllers, I/O modules, and communication units, ensuring uninterrupted operation of the entire control system—especially in harsh industrial environments (e.g., petrochemical plants, power stations). Below is its comprehensive specification:
- Brand: YOKOGAWA (Yokogawa Electric Corporation)
- Model Number: PW301
- Product Type: Industrial DC power supply unit (dedicated to powering DCS and automation system components)
- Series Affiliation: Typically part of Yokogawa’s "PW Series" power supplies, which focus on high reliability and compatibility with Yokogawa’s control systems.
- Compatibility: Primarily compatible with Yokogawa CENTUM VP DCS components (e.g., CP461-50 processor modules, AAI141-H50 analog input modules) and other Yokogawa industrial equipment; can also be used with third-party devices requiring matching DC voltage (with proper verification).
- Dimensions: Approximately 150mm (length) × 80mm (width) × 120mm (height) (compact design, suitable for installation in standard 19-inch industrial control cabinets or on 35mm DIN rails—compatible with common cabinet mounting standards).
- Weight: Approximately 1.2kg (lightweight, easy to install; aluminum alloy housing for durability and heat dissipation).
- Operating Temperature Range: -10°C to 60°C (wide temperature adaptation, suitable for unconditioned industrial workshops or outdoor control cabinets with basic insulation).
- Storage Temperature Range: -20°C to 85°C (safe for transportation and long-term storage in extreme temperature conditions).
- Relative Humidity: 5% – 95% RH (non-condensing; resistant to humid environments like water treatment plants or coastal industrial sites).
- Protection Class: IP20 (front panel; requires installation in a control cabinet with IP20+ protection to prevent dust accumulation or accidental contact with live parts).
- Electromagnetic Compatibility (EMC): Complies with IEC 61000-6-2 (industrial environment immunity) and IEC 61000-6-4 (EMC emissions); resists interference from on-site equipment like motors, inverters, or high-voltage cables.
- Wide-Range Input & Global Compatibility: 100-240V AC input eliminates the need for voltage selectors, making it suitable for international projects (e.g., 110V AC in North America, 220V AC in Europe/Asia).
- Stable Output for Sensitive Equipment: Low output ripple (<50mVp-p) and tight voltage regulation (±0.5%) prevent signal interference for DCS modules and sensors, ensuring accurate data acquisition and control.
- Comprehensive Protection Mechanisms: Multi-layer protection (OVP, OCP, short-circuit, over-temperature) safeguards both the power supply itself and the connected DCS components, reducing downtime risks.
- Low-Maintenance Design: Passive heat dissipation (no fan) and high MTBF (>100,000 hours) minimize on-site maintenance work, lowering total ownership costs.
- Easy Integration: DIN rail mounting and standard 24V DC output allow quick integration into existing Yokogawa DCS cabinets; clear LED indicators (power ON, fault) enable easy status monitoring.
- Petrochemical & Chemical Industry: Powers CENTUM VP DCS controllers (e.g., CP461-50), analog/digital I/O modules (e.g., AAI141-H50), and communication units (e.g., ALE111-S50) in refineries or chemical plants, ensuring stable process control.
- Power Generation: Supplies power to DCS components in thermal power plants (e.g., boiler control modules) or nuclear power auxiliary systems, supporting critical power grid operations.
- Water Treatment & Environmental Monitoring: Powers PLCs, sensor modules, and data loggers in wastewater treatment plants, ensuring continuous monitoring of water quality parameters (pH, dissolved oxygen).
- Metallurgy & Manufacturing: Provides reliable power to automation equipment in steel mills (e.g., blast furnace control modules) or automotive assembly lines, avoiding production interruptions due to power instability.
- Load Matching: Ensure the total current of connected devices does not exceed the PW301’s continuous output current (5A); avoid long-term operation at peak current (7A) to prevent overheating.
- Mounting Requirements: Install in a well-ventilated control cabinet to ensure effective heat dissipation; avoid placing near heat sources (e.g., power resistors) or high-vibration equipment.
- Fault Troubleshooting: If the "fault" LED is illuminated, check for input voltage surges, output short-circuits, or over-temperature conditions; reset the power supply after resolving the fault (some models require power cycling).
For the latest firmware updates (if applicable), detailed wiring diagrams, or compatibility lists with specific Yokogawa DCS components, refer to Yokogawa’s official PW301 technical manual or contact Yokogawa’s industrial automation support team.
