B&R X20SO6300 X20 Safe Digital Output Module

Product Overview

The X20SO6300 (X20SO6300) is a specialized safe digital output module within the B&R X20 system, designed to meet the most stringent functional safety requirements in industrial automation. This module features 6 safe type B1 digital outputs, providing a reliable interface for safety-related actuators such as contactors, safety valves, and light curtain muting circuits. With an ultra-fast OSSD (Output Signal Switching Device) test pulse of less than 10 microseconds, it ensures continuous diagnostic monitoring without interrupting the load. Engineered for critical safety loops in high-risk environments—including robotic workstations, press control systems, and chemical processing plants—the X20SO6300 provides the essential hardware layer for achieving SIL 3 or PLe safety ratings when integrated into a SafeLOGIC control network.

Technical Configuration

The X20SO6300 utilizes an advanced FET output architecture with dual positive switching (type B1) to ensure fail-safe performance. A key technical feature is that the output level is readable by the system, allowing for real-time feedback and cross-checking of the actual output state against the commanded logic. The module operates on a nominal 24 VDC supply with a wide tolerance range of -15% to +20%, maintaining stability during industrial power fluctuations. To prevent damage during installation or maintenance, the unit includes integrated reverse polarity protection. Each of the 6 channels is optimized for low-power safety components, providing a nominal output current of 0.2 A per channel.

Technical Specifications

Technical FAQs

What is the significance of the OSSD <10 microsecond specification?

The OSSD pulses are extremely short diagnostic tests that check for short circuits and cross-faults in the wiring. Because these pulses are less than 10 microseconds, they are fast enough that the connected safety actuators (like relays or solenoids) do not physically react or drop out, ensuring "dark test" capability during operation.

Can the status of the safe outputs be monitored by the non-safety PLC?

Yes, the X20SO6300 allows the output level to be readable. While the safety logic controls the output via the SafeLOGIC controller, the status information can be bridged to the standard PLC for diagnostic visualization and HMI reporting.

What happens if the power supply polarity is reversed during installation?

The module is equipped with integrated reverse polarity protection. This prevents the internal safety electronics from being destroyed if the 24 VDC and ground wires are accidentally swapped, though the module will not operate until the wiring is corrected.

Engineering & Installation Guide

• Load Characterization: This module is rated for 0.2 A per channel. It is specifically designed for high-impedance safety inputs or small safety relays. If you are driving larger inductive loads, ensure that the inrush current does not exceed the FET limitations, and always utilize external suppression diodes if the actuator does not have integrated flyback protection.

• Safety Network Integration: The X20SO6300 must be used in conjunction with a B&R SafeLOGIC controller (such as the X20SL series). Ensure that the safety address is correctly set via the hex switches or software configuration to match your project’s safety map, as a mismatch will prevent the Safety Release from occurring.

• Environmental Management: In environments with high humidity (up to 95%), ensure that the control cabinet is properly sealed and utilize climate control if condensation is a risk. While the module is rated for non-condensing operation, moisture on the terminal blocks can lead to leakage currents that may trigger "cross-fault" safety errors.