Safety relay modules handle up to six devices

Edited by the Engineeringtalk editorial team Nov 3, 2003

Three new safety relay modules added to the multifunction Protect range allow up to six safety devices with dual channel contacts to be connected.

Three new safety relay modules added to the multifunction Protect range allow up to six safety devices with dual channel contacts to be connected.

The Protect 206ST, 206SQ and 207AN will also indicate if any of the six devices is open (or in the event of a restart, which remains open) by providing a feedback signal to a higher operational control system.

The major benefit for machine builders and engineers is that the additional functions are achieved without the need for additional wiring.

The Protect 206ST and 206SQ requires two NC inputs configuration and Protect 207AN requires one NO and one NC input.

Specifications include: control category 3 or 4; manual or automatic start functions; two safety enabling paths, one auxiliary signalling path (207AN only); six semiconductor signalling outputs; cross-short detection (206SQ version only); contactor monitoring; a 45mm housing; three LEDs - K1, K2 status; and a Ui status internal power supply.

Other safety relay modules in Schmersal's Protect range offer different levels of functionality to allow machine builders to specify the perfect relay without paying for unwanted and unnecessary functions.

The range is suitable for use with all safety equipment including switches, solenoid safety switches, position switches with safety functions, pull wire emergency switches, hinged safety switches, magnetic safety sensors and emergency stop pushbuttons.