X20SC0806 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation X20SC0806 is part of the X20 Fieldbus Input Output Modules series. It features 8 safe inputs of Type A, 6 safe outputs of Type B2, and operates with a 24 VDC I/O supply voltage. The module provides a pulse output count of 4 with a total current of 200 mA and uses a push-pull pulse output type.
Internal Product Review
The X20SC0806 is a high-quality safety I/O module with 8 safe inputs and 6 safe outputs. A 24 VDC I/O supply and push-pull pulse outputs support clean integration in machine safety circuits. The 1.2 A total safe output current is a strong advantage for compact safety architectures.
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Product Description:
The X20SC0806 module is produced by B&R Automation as part of the X20 Fieldbus Input Output Modules series. It is a safety-rated I/O unit that mounts on an X20 backplane and passes field signals to the network controller. By combining standard pulse outputs with safe digital channels, the product enables machine builders to gather device status and drive actuators through the same distributed fieldbus node. The safe and standard channels are handled in one slice, which helps keep distributed control layouts compact at the machine. It supports 24 V control systems, providing localized safety logic for emergency-stop lines and coordinated motion sequences.
Power drawn from the backplane bus is only 0.4 W, while the internal I/O electronics add 2.5 W of dissipation, so cabinet thermal load stays low. All field channels are referenced to a supply of 24 VDC, a level common to low-current industrial sensors and contactors. The eight safety inputs use a sink circuit topology and conform to Type A classification, meaning external devices deliver active-low signals. This input arrangement suits safety circuits that use supervised contacts and dual-channel switching devices. An input error-detection window of 100 ms flags wire breaks or state inconsistencies. After this period, the controller forces the channel to a defined safe state.
Four pulse channels supply position or step commands; the module provides 4 push-pull outputs that can source or sink up to 50 mA each, with a combined limit of 200 mA. The push-pull stage eases wiring because no external resistors are required for direction control. These pulse outputs can be used for incremental command signaling in motion-related auxiliary tasks. On the safety side, eight monitored inputs operate alongside six force-guided outputs. Each safety output can deliver 0.2 A and, with all channels active, the group must not exceed 1.2 A. Output path resistance is kept to 5 Ω, reducing voltage drop across contactors. The outputs follow the Type B2 definition, allowing direct actuation of 24 VDC relays and valve coils without additional interface relays.
