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

I. Positioning and Applications

• Series Affiliation: Power Supply Module of ABB AC 500 series PLC, providing stable DC power for AC 500 system racks and serving as the core energy component in the control system hardware architecture.
• Core Functions:

• Powers devices such as CPU modules, I/O modules, and communication modules in the rack to ensure stable system operation.

• Supports redundant power configuration (requires dual power supply modules), enhancing the reliability of industrial control systems. It is suitable for scenarios with high requirements for power continuity, such as power, chemical, and metallurgical industries.

II. Technical Parameters and Characteristics

Input Specifications

• Input Voltage Range:

• AC version: 100–240 VAC (±10%), 50/60 Hz (wide voltage adapts to global power grids).

• DC version: 24–250 VDC (supports wide-range DC input, such as battery-powered scenarios).

• Input Current: Depending on the output power, the typical value is 1–5 A (for AC input).

• Surge Protection: Built-in overvoltage and undervoltage protection circuits can withstand instantaneous voltage fluctuations (e.g., lightning strikes, power grid interference).

Output Specifications

• Output Voltage: 24 VDC (±1% voltage regulation accuracy), providing stable power for modules.

• Output Power: Typical value 60 W (can drive 4–8 I/O modules, specifically depending on load requirements).

• Ripple Noise: ≤50 mV (ensures stable operation of precision electronic components).

Electrical Characteristics

• Efficiency: ≥85% (high-efficiency design reduces energy loss and heat generation).

• Isolation: Electrical isolation between input and output (isolation voltage 500 VAC) prevents interference feedback.

• Short-Circuit Protection: Supports output short-circuit and overload protection, with automatic recovery after fault elimination.

III. Functional Highlights and Technical Features

Power Management and Reliability

• Redundant Configuration Support: Can be connected in parallel with another 500PSM02 module to achieve "primary-backup power supply" through redundant modules. It automatically switches when the primary power fails, ensuring uninterrupted system operation.

• Power Status Monitoring: Real-time monitoring of input/output voltage and current, displaying operating status through module panel LED indicators (Power, Fault), and supporting fault early warning.

Environmental Adaptability

• Operating Temperature: -25°C to +60°C (wide-temperature design suitable for harsh industrial site environments).

• Protection Level: IP20 (dustproof when rack-mounted, requiring use with a cabinet).

Installation and Maintenance

• Installation Method: Directly inserted into the power slot of the AC 500 system rack, connected to other modules via the backplane bus.

• Hot-Swap Support: Supports live replacement (requires configuring allowable hot-swap in system parameters), reducing downtime.

IV. Typical Application Scenarios

V. Interfaces and Wiring Examples

Hardware Interface Layout

• Input Interface: 2-pin terminal block (AC input: L, N; DC input: +, -).

• Output Interface: Powers modules in the rack via the backplane bus, with no additional external output terminals.

• Status Indication: Module panel integrated with LED lights:

• Power (green): Illuminates when power is normal;

• Fault (red): Illuminates when input is abnormal or overloaded.

Redundant Power Wiring Example

VI. Comparison with Similar Modules (500PSM01, 500PSM10)

VII. Configuration and Debugging Essentials

Installation Notes

• Ensure the input voltage matches the module specifications (AC/DC versions cannot be mixed), and distinguish between live/neutral wires (AC input) or positive/negative poles (DC input) during wiring.

• For redundant configurations, enable the "power redundancy" function in Control Builder AC 500 software and set primary-backup priorities.

Fault Troubleshooting

• If the Fault light is on:

• Check if the input voltage is within the allowable range;

• Confirm whether the total load of modules in the rack exceeds the power output (current can be monitored via software);

• Investigate whether there is an output short circuit (e.g., incorrect wiring of I/O modules).

Maintenance Suggestions

• Regularly clean dust from the module's cooling holes to avoid overheating protection due to poor heat dissipation;

• For redundant power systems, it is recommended to conduct primary-backup switching tests annually to ensure normal switching functionality.

VIII. Conclusion

• High reliability: Wide voltage input, electrical isolation, and short-circuit protection adapt to complex industrial power grid environments;

• Flexible expansion: Supports redundant configuration to meet high availability requirements;

• Convenient maintenance: Hot-swap design and real-time status monitoring reduce system downtime risks.