PS-502-01 YOKOGAWA Power Supply Module

Product Description (Detailed Explanation)

The PS-502-01 is a standard AC power supply module that mounts onto the leftmost slot of an FA-M3 base unit. Its main function is to convert external AC mains voltage into the regulated DC power required by the internal bus architecture of the PLC.

This module is known for its “Range-free” compatibility, meaning it can operate across various global power standards without manual switching. It also includes built-in protection circuits to ensure that the delicate logic of the CPU and I/O modules remains safe during electrical transients or shorts.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Global Versatility: The wide input voltage range (100–240V AC) allows the same module to be used in different countries (Japan, USA, Europe) without hardware changes.

• High Efficiency: Uses high-frequency switching technology to minimize heat generation, which extends the life of the module and surrounding components.

• Compact Design: Designed to maximize space on the base unit, allowing more room for I/O and communication modules.

• Reliable Protection: Features integrated overcurrent and overvoltage protection to prevent damage to the high-cost CPU module in the event of a power surge or wiring error.

• Status Monitoring: Includes a clear “POWER” LED indicator to provide instant visual confirmation of the system’s operational status.

Precautions (Important Notes)

• Grounding: Proper “Class D” grounding is essential. Ensure the “LG” (Large Ground) and “FG” (Frame Ground) terminals are correctly connected to prevent electromagnetic interference and electric shock.

• Heat Dissipation: To ensure natural convection cooling, maintain the specified clearance above and below the PLC rack. Do not block the ventilation holes on the module casing.

• Wiring Safety: Always turn off the external power source before performing any wiring. Use crimp terminals for all connections to ensure a secure, vibration-resistant contact.

• Terminal Torque: Tighten terminal screws to the manufacturer’s specified torque (approx. 1.2 N·m). Loose connections can cause overheating or intermittent power failures.

Product Applications (Typical Use Cases)

The PS-502-01 is used in demanding industrial automation environments where the FA-M3 PLC is deployed:

• Semiconductor Manufacturing: Providing stable power for high-speed wafer processing equipment.

• Automotive Assembly Lines: Powering controllers for robotic arms and conveyor systems where downtime is extremely costly.

• Food & Beverage: Used in PLC systems controlling automated packaging and bottling lines.

• Water Treatment Plants: Monitoring and controlling pumps and filtration systems in environments where electrical noise from large motors is common.