234 Safe torque off function Connection with internal +24 V DC power supply, single lineOUT2OUT1IN1IN2T1/U,T2/V,T3/WControl boardSGNDSTOUDC+UDC-ADrive3435363738Control logicK+ 24 V DC+ 24 V DCNotes:• Both STO inputs (IN1, IN2) must be connected to the activation switch. Otherwise, noSIL/PL classification is given.• Pay special attention to avoiding any potential failure modes for the wiring. For example,use shielded cable. For measures for fault exclusion of wiring, see eg. EN ISO 13849-2:2012, table D.4.