STO and SS1 safety functions vacon • 21Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/5Figure 7.STO principle with OPTBJ board and VACON® 100 family control board MR12STO1+STO2-RO=3~=3~VACON 100 CONTROL UNITControl boardOPTBJ board, slot EMASTERPOWER UNITSLAVEPOWER UNITThermistor Atex SafetyFunctionAtex SafetyFunctionHardwareSTO 1HardwareSTO 2HardwareSTO 1HardwareSTO 211654A_uk
