The G9SX-GS Safety Guard Switching Unit uses external outputs to enable status indication of two safety input devices, auxiliary outputs enable monitoring of safety inputs, safety outputs, and errors, and detailed LED status indicators provide quick, easy system diagnosis. Additionally, logical AND connections help facilitate complicated applications in combination with other G9SX series units.  Perhaps most significantly, each G9SX-GS unit supports unique auto-switching and manual-switching functions.


Auto switching ensures safety and productivity in applications with coordinated operations – namely, operators working together with machines – by monitoring the machine or robot and operator to make certain the machine and operator don’t enter the coordinated area at the same time.


The manual switching function is ideal for applications that require limited machine access for operations such as maintenance and cleaning.  During normal machine operation the door switch monitors the door status and allows the machine to operate so long as the door is closed.  When the operator switches to maintenance mode the door switch is disabled and an enabling switch is put into the safety circuit.  The enabling switch allows the machine to continue to safely operate so long as the operator continues to hold the enabling switch in the ‘enabled’ position. Should the operator release the enabling switch to the ‘disabled’ position, the machine will stop to prevent danger to the operator.