PS-502-01 YOKOGAWA Controller module

Description

PS-502-01 YOKOGAWA Controller module

Product Dimensions：

Product Description

The PS-502-01 is a Power Supply Module that converts and regulates field-side DC power for use by internal safety logic and field instrumentation. It serves as a “clean” power source, providing galvanic isolation to ensure that surges or noise from the field do not interfere with the ProSafe-SLS logic modules.

Product Parameters

• System Compatibility: Yokogawa ProSafe-SLS (Solid-state Logic Safety).

• Input Voltage: 20 to 30 V DC (Nominal 24 V DC).

• Output Voltage: Regulated 24 V DC (Trimmer-adjustable on the front panel).

• Output Current: Max. 0.7 A total load.

• Operating Temperature: -25°C to +85°C (Extended range for industrial durability).

• Form Factor: 6TE/6HP Euro-card format (Standard rack-mount).

• Visual Indicators: Front-facing LEDs for input and output status monitoring.

• Weight: Approximately 0.24 lbs (0.11 kg).

Key Advantages

• Safety Integrity: Built to meet the rigorous demands of safety instrumented systems (SIS), ensuring reliable power even in harsh conditions.

• Galvanic Isolation: Effectively separates the input power from the output, protecting the control system from field-side electrical faults.

• Ruggedized Design: Capable of operating in extreme temperatures up to 85°C, which is significantly higher than standard commercial power supplies.

• Adjustable Output: The front-mounted trimmer allows users to fine-tune the voltage to compensate for cable resistance in long-distance field wiring.

• Parallel Capability: Supports redundant configurations to ensure system uptime if one module fails.

Precautions for Use

• Discontinuation Notice: The PS-502-01 is a legacy/discontinued part. New installations typically use the PS-502-A1 or newer series. Ensure your supplier provides a certified refurbished or “New Old Stock” unit.

• Current Limits: Never exceed the 0.7 A rating. Overloading the module can trigger the “fold-back” protection, causing the safety system to shut down.

• Ventilation: Although it is small, several modules installed together generate heat. Maintain adequate spacing or airflow within the ProSafe rack.

• Fuse Replacement: If the input fuse blows, only replace it with the manufacturer-specified rating (typically 2A) to prevent fire hazards.

Product Applications

The PS-502-01 is primarily applied in high-reliability industrial sectors:

1. Safety Instrumented Systems (SIS): Providing power to safety logic gates (AND/OR gates) in ProSafe-SLS racks.

2. Analog Loop Supply: Powering 4-20mA loops for pressure, flow, and temperature transmitters.

3. Emergency Shutdown (ESD): Serving as the power source for critical shutdown loops in oil and gas or chemical plants.

4. Signal Isolation: Used where high-level electrical isolation is required between the field and the control room.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

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