ABB 500PSM02 1MRB150015R1 AD-272.100.20-01 AZ:C Power Supply Module

The ABB 500PSM02 (1MRB150015R1) is a specialized Power Supply Module designed for the ABB Procontrol P13 and AC500 series control systems.

It provides stabilized power to the system’s internal backplane, ensuring that processing and I/O modules receive consistent voltage even during fluctuations in the main power source.

1. Introduction

The 500PSM02 acts as the "heart" of the module rack. Its primary function is to convert external supply voltages (typically 24V DC) into the filtered, regulated power required by the sensitive electronic components within the P13 or AC500 station.

It is built for high-availability environments, often supporting redundant configurations where two modules work in parallel to prevent system-wide shutdowns if one unit fails.

2. Technical Parameter Table

3. Related Models

500PSM01: Base version for standard power requirements.

500PSM03 (1MRB150038R1): High-power variant with wide AC input support (85-264V AC).

70PR05 / 70PR07: Processor modules that frequently rely on the 500PSM02 for stable bus power.

500BIM02: Binary input module often powered by the same rack backplane.

4. Product Advantages and Features

Redundancy Capability: Multiple 500PSM02 units can be connected in a "load-sharing" mode to increase system reliability.

High Efficiency: Low thermal dissipation helps maintain a cooler cabinet environment, extending the life of neighboring I/O modules.

Built-in Protection: Features integrated overvoltage, overcurrent, and short-circuit protection to safeguard the entire PLC rack.

Diagnostic Monitoring: Includes front-panel LEDs for "Power OK" and "Fault" status, allowing for rapid visual troubleshooting.

Rugged Design: Designed for Swedish-standard industrial durability, resistant to vibration and electromagnetic noise (EMC).

5. Application Cases

Substation Control: Providing clean power for protection relays and bay controllers in high-voltage environments.

Gas Turbine Control: Powering the Procontrol P13 modules used in high-speed turbine regulation and monitoring.

DCS Systems: Acting as the primary power source for distributed control system racks in chemical plants.

Marine Automation: Used in engine room monitoring systems where power quality from generators can be unstable.

6. Installation and Maintenance

Installation:

The module is "hot-swappable" in some configurations, but it is recommended to power down the specific rack slot during insertion to avoid arcing.

Ensure the grounding screw on the front panel or rack frame is securely tightened to maintain the 1500V isolation rating.

Maintenance:

Visual Check: Inspect the "Output OK" LED. If it is dim or flickering, the module may be nearing its end-of-life or the load is exceeding 5A.

Cleaning: Periodically clear dust from the top and bottom ventilation paths of the rack to prevent localized heat buildup.

Testing: During annual shutdowns, verify the output voltage at the backplane test points to ensure it remains within the $pm 5%$ tolerance.