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5AC901.LSD3-00 B & R Automation

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Internal Product Review

The 5AC901.LSD3-00 is a B & R Automation CNC addon module with an SDL3 interface and a shielded RJ45 connector. Stable operation across 0 to 55°C and 5 to 90% non-condensing humidity supports dependable machine integration. Low 4 W power consumption makes this addon module an efficient choice for CNC communication expansion.

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Product Description:

The 5AC901.LSD3-00 is an add-on communication module manufactured by B & R Automation for the 5AC CNC Addon Modules series. Installed next to the main CNC controller, it extends the backplane with an external field interface so numerical control signals can reach remote drives, operator panels, or diagnostic stations. By moving the network interface to a dedicated board, control designers can preserve CPU slots for motion or safety tasks while maintaining deterministic data exchange within the machine cabinet. This arrangement separates network traffic from the base controller hardware and keeps expansion flexible for machines that use distributed I/O or remote diagnostic access.

For physical connection, the module is fitted with a RJ45, shielded jack that limits electromagnetic interference inside metal enclosures. Data exchange uses the SDL3 protocol, giving high-speed synchronous communication between the CNC kernel and peripheral devices. This supports coordinated transfer of commands, status data, and diagnostic information across the connected system. Thermal load is minimal because the electronics draw only 4 W, allowing passive cooling through the cabinet wall. Low power dissipation reduces internal hot spots and avoids the need for active cooling hardware on the module itself. Continuous service is permitted over an ambient range of 0 to 55 °C without derating, provided the surrounding air remains at 5 to 90%, non-condensing. These operating limits allow the board to sit near transformers, contactors, and other heat sources commonly found in machine bases.

Storage conditions allow relative humidity of 5 to 95%, non-condensing and temperatures from -20 to 60 °C without damage to connectors or solder joints. Transport conditions use the same temperature window, so routine freight does not require climate-controlled packaging. That range supports storage in unheated stock rooms and enclosed shipping cartons as long as liquid moisture does not form on the board. These limits also help preserve connector surfaces and electrical contacts during periods when the module remains out of service.

Connector Variant
RJ45, shielded
Interface Type
SDL3
Operating Humidity
5 to 90%, non-condensing
Operating Temperature
0 to 55°C
Power Consumption
4 W
Storage Humidity
5 to 95%, non-condensing
Storage Temperature
-20 to 60°C
Transport Humidity
5 to 95%, non-condensing
Transport Temperature
-20 to 60°C

Frequently Asked Questions about 5AC901.LSD3-00:

Q: What type of connector is used on the 5AC901.LSD3-00 addon module?

A: This model features a shielded RJ45 connector for secure and reliable connectivity.

Q: Which interface type does the 5AC901.LSD3-00 support?

A: The interface type for this addon module is SDL3.

Q: What operating humidity range is supported by the 5AC901.LSD3-00?

A: The allowed operating humidity range for the 5AC901.LSD3-00 is from 5% to 90%, non-condensing.

Q: What is the operating temperature range for the 5AC901.LSD3-00?

A: This module operates within a temperature range from 0 to 55°C.

Q: What is the power consumption of the 5AC901.LSD3-00 addon module?

A: The 5AC901.LSD3-00 consumes 4 watts of power during operation.

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