6ES7405-0RA00-0AA0 SIEMENS Central control module

Description

6ES7405-0RA00-0AA0 SIEMENS Central control module

Product Dimensions：

Product Description

The 6ES7405-0RA00-0AA0 is a SIMATIC S7-400 PS 405 Power Supply Module. It is designed to convert a 24V DC input into the specific backplane voltages required to operate the S7-400 CPU, communication processors, and I/O modules. This specific model is a 10 Ampere high-capacity version, making it suitable for large racks with many high-power consumption modules.

Product Parameters

Key Product Advantages

• High Power Density: Providing 10A of current, it can support a fully loaded 18-slot rack (like the UR1) without needing a second power supply in many configurations.

• Comprehensive Diagnostics: Features front-panel LEDs for “DC 24V” (input), “5V DC” (output), and “24V DC” (output) status. It also includes “BAF” and “BATT” indicators for battery health monitoring.

• Dual Battery Backup: Allows for the installation of two backup batteries. This ensures that the user program and data in the CPU RAM are preserved during power outages, and the “hot-swap” of batteries can be done without losing data.

• Galvanic Isolation: Provides safe electrical separation between the primary 24V input and the internal backplane bus voltages, protecting sensitive CPU electronics.

Critical Safety & Usage Notes

1. Slot Occupation: This module is double-width (50mm) and occupies 2 slots on the S7-400 rack (typically Slots 1 and 2).

2. Backup Battery Maintenance: To prevent data loss in the CPU, ensure the lithium batteries are replaced periodically. The “BATT1” and “BATT2” LEDs will indicate when a battery is depleted.

3. Inrush Current: When the 24V DC supply is switched on, there is a significant inrush current. Ensure that the upstream DC power source and cables are rated to handle this peak.

4. Heat Dissipation: Due to the 95W power output, ensure that the ventilation slots on the rack are not obstructed. It is recommended to leave clear space above and below the rack.

Product Applications

The PS 405 10A is primarily used in DC-powered industrial environments:

• Renewable Energy: Control systems for wind turbines or solar arrays where the primary power source is battery-backed DC.

• Marine & Offshore: Powering PLC systems on ships and oil rigs where 24V DC is the standard onboard voltage.

• Emergency Systems: High-reliability systems that must remain operational via DC battery banks during a total AC mains failure.

• Heavy Industry: Large-scale S7-400 installations in steel mills or mining operations where centralized 24V DC distribution is used for control cabinets.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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

Service: Professional Sales provides 24 hours /7 days online service

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