6ES7400-1JA01-0AA0 SIEMENS Programmable controller

Description

6ES7400-1JA01-0AA0 SIEMENS Programmable controller

Product Dimensions：

Product Description

The 6ES7400-1JA01-0AA0 is a SIMATIC S7-400 UR1 Rack (Universal Rack). It serves as the fundamental physical and electrical foundation for the Siemens S7-400 PLC system. As a “Universal Rack,” it can be used both as a central rack (holding the CPU) and as an expansion rack (holding I/O modules), providing the backplane bus communication and power distribution for all inserted modules.

Product Parameters

Key Product Advantages

• Maximum Scalability: With 18 slots, the UR1 is the largest rack in the S7-400 series, allowing for massive I/O configurations and multiple processors (Multi-computing).

• Dual Bus Architecture: Features both a P-Bus (Parallel backplane bus for fast I/O data) and a K-Bus (Communication bus for high-speed data exchange between CPUs and CPs).

• Robust Construction: Built with rugged aluminum to withstand harsh industrial environments, providing excellent heat dissipation and mechanical stability.

• Versatility: Since it is a “Universal” rack, it reduces inventory costs because the same part number can be used for the main controller housing or for remote expansion racks.

Critical Usage Notes & Precautions

1. Grounding: The rack must be properly grounded to the cabinet Earth to ensure electromagnetic compatibility (EMC) and protect against static discharge.

2. Slot Rules: While it has 18 slots, slot 1 is typically reserved for the Power Supply (PS) module. If using a redundant power supply, additional specific slots are required.

3. No Hot-Swapping on Backplane: While the S7-400 system supports hot-swapping (Insert/Remove), this functionality depends on the active backplane bus or specific “hot-swap” racks (like the UR2-H). The standard UR1 rack backplane is passive; removing modules may interrupt the bus for other modules.

4. Cooling: Ensure at least 40mm of clearance above and below the rack for natural air convection to prevent module overheating.

Product Applications

The UR1 rack is the backbone of high-end automation projects:

• Power Generation: Housing multiple CPUs and communication modules for synchronized control in power plants.

• Chemical & Petrochemical: Managing thousands of I/O points in large-scale processing facilities.

• Automotive Industry: Centralized control for entire paint shops or assembly lines.

• Large Infrastructure: Controlling tunnel ventilation, water distribution networks, and railway signaling.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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

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