Description

The Siemens 6ES5135-3KA31 is a 21-slot subrack engineered as the primary chassis for the Simatic S5-135U programmable logic controller system. This robust mechanical frame provides the necessary backplane architecture for high-speed data communication and power distribution across complex, multi-processor automation configurations. Designed for demanding industrial environments such as rolling mills and petrochemical processing, this chassis ensures structural integrity and reliable electrical connectivity for legacy S5-135U installations.

Features

• 21-slot capacity for high-density I/O and CPU module configurations.
• Rugged aluminum frame designed to withstand industrial vibration and mechanical stress.
• Integrated multi-layer backplane with gold-plated connector pins to ensure low-resistance signal paths and oxidation resistance.
• Parallel bus architecture supporting multi-processor communication without data collisions.
• Optimized for standard 19-inch rack mounting.
• Shielded signal routing to maintain communication integrity in high-EMI environments.

Technical Specifications

Installation Guidelines

• Ensure the subrack is securely mounted in a standard 19-inch industrial cabinet with adequate clearance for airflow.
• Always disconnect all power sources from the rack before inserting or removing any CPU, I/O, or power supply modules to prevent electrical arcing or damage to the backplane pins.
• Verify that the backplane connectors are free of dust and debris before module installation.
• Ensure proper grounding of the chassis to the cabinet earth bus to mitigate electromagnetic interference.
• Maintain ambient operating temperatures within the 0 to 55 deg C range to ensure long-term reliability of the backplane components.

FAQ

Is this chassis compatible with all S5-135U modules?

Yes, the 6ES5135-3KA31 is designed to house standard S5-135U modules. Please ensure your specific module configuration does not exceed the 18 A current limit of the 5 VDC bus.

Does this unit include a power supply?

No, this is the subrack chassis only. It requires a compatible Siemens S5-135U power supply module to be installed in the designated slot to provide the necessary system voltages.