60 Connect Devices WAGO-I/O-SYSTEM 750750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iParManualVersion 1.2.0, valid from HW/SW Version 01/016.3.1.2 Emergency Off Connection, Dual channel, Equivalent EvaluationPay attention to the protected installation of signal lines during short circuittest "not active"!If you have set the Short circuit test parameter of an input to "not active", thesignal lines must be installed protected among each other and between the sensorsand inputs according to EN 60204-1 or EN ISO 13849-2 (e.g., as separatesheathed lines or in separate cable ducts).Pay attention to the protected installation when the short circuit test isactivated!With clock outputs T1 … T2, you can install the signal lines from maximum twosensors in one common cable. Otherwise, the PROFIsafe I/O module cannotdetect short circuits between signal lines of the inputs that are tested with thesame clock output. Make sure that the signal lines are installed protected amongeach other and between the safe sensors according to EN 60204-1 or EN ISO13849-2 (e.g., as separate sheathed lines or in separate cable ducts).Figure 23: Connection 2 x emergency-off switch, dual channel, equivalent evaluationFor emergency off applications that require single fault security, you can connecttwo digital inputs via two switching elements (two-channel emergency offswitches with two break contacts) to the PROFIsafe I/O module.Use the WAGO parameterization tool to set the parameters. For more informationabout configuring the PROFIsafe I/O module, read section "Parameterization ofthe PROFIsafe I/O Module with the WAGO Parameterization Tool".Set the Dual channel evaluation parameter to "yes" for the digital inputs usedand the Valence evaluation parameter to "equivalent". In addition, set theDiscrepancy time parameter to the discrepancy time required for the twoswitching elements.
