Description
The Yokogawa AIP602-S2 is a high-reliability system power supply module engineered specifically for Yokogawa CENTUM distributed control systems (DCS). Designed to provide stable and regulated DC power to system nodes, processor modules, and I/O expansion racks, this unit ensures uninterrupted operation in critical industrial automation environments.
Built to rigorous industrial standards, the power supply features robust overload protection, low ripple voltage, and high conversion efficiency. Its modular form factor allows for seamless slide-in installation into standard Yokogawa power distribution chassis, supporting high system availability across power generation, petrochemical, and manufacturing facilities.

📊 Product Datasheet & Technical Parameters
- Brand: Yokogawa Electric Corporation
- Model: AIP602-S2
- Series: CENTUM DCS Hardware Platform
- Product Name: System Power Supply Module
- Place of Manufacture: Japan / Singapore (Global Yokogawa Manufacturing Facilities)
- Physical State: Solid-State Electronic Power Supply Assembly
- Dimensions: Standard Yokogawa rack-mount card layout (~130 mm x 180 mm x 50 mm variant dependent)
- Weight: ~1.1 kg
- Origin of Materials: Global Sourced Industrial Components
- Power Rating: Input: 100–240 VAC / 24 VDC variants (Application dependent); Output: Regulated redundant DC rails for system backplane distribution
🛠️ Operational Specifications & Usage Methods
Installation of the Yokogawa AIP602-S2 module must be performed by certified electrical technicians within a grounded, climate-controlled control cabinet. Securely slide the unit into its designated slot on the power chassis, ensuring mechanical alignment and tightening all front retaining screws to maintain proper contact.
Maintain operating ambient cabinet temperatures between 0°C and 50°C, with non-condensing relative humidity levels below 95%. Verify that incoming AC/DC power wiring is correctly terminated to the input terminals and segregated from low-voltage signal cables to prevent electromagnetic interference.
🛑 Emergency Shutdown Procedure
In the event of a critical electrical fault, plant emergency, or system-wide power overhaul, execute the facility emergency shutdown procedure to cut primary power feeds to the control cabinet.
Isolate all upstream AC and DC circuit breakers supplying power to the AIP602-S2 module. Allow sufficient time for internal filter capacitors to discharge completely, and verify a zero-energy state using a calibrated multi-meter before performing maintenance, wiring checks, or module extraction.
🔍 Troubleshooting & Common Issues
Common field anomalies typically involve input power loss, blown internal fuses, thermal degradation, or output voltage drop resulting in a system alarm. If a power fault status LED illuminates on the front panel, verify that incoming line voltage is stable and check terminal connections for tightness.
Inspect cabinet ventilation paths and cooling fans to ensure heat dissipation is unhindered. Use static-safe maintenance tools to clear any dust accumulation from module ventilation grills.
🧰 Routine Maintenance & Servicing
Establish a routine semi-annual preventive maintenance schedule to verify the integrity of the power system. Inspect terminal screws, grounding straps, and input wiring harnesses for signs of thermal stress, corrosion, or loosening caused by cabinet vibration.
Test the power unit during scheduled maintenance windows to verify output stability. Clean exterior surfaces with a dry, anti-static cloth.
❓ Frequently Asked Questions (Q&A)
- Q1: What is the primary function of the Yokogawa AIP602-S2?
- A1: It serves as a system power supply module designed to deliver stable, regulated DC power to Yokogawa CENTUM DCS processor and I/O racks.
- Q2: Is the AIP602-S2 power supply hot-swappable?
- A2: In redundant configurations supported by the appropriate chassis, power supply units can often be replaced online, provided local safety protocols and system guidelines are strictly followed.
- Q3: Which control platforms utilize this power supply?
- A3: This module is widely deployed across Yokogawa CENTUM distributed control system architectures.

