BECKHOFF TwinSAFE - Manual (Page 3)

Table of contents
Application Guide TwinSAFE 1
Table of contents
1 Foreword 4
1.1 Notes on the manual 4
1.1.1 Disclaimer 4
1.1.2 Trademarks 4
1.1.3 Patent Pending 4
1.1.4 Copyright 4
1.2 Safety instructions 5
1.2.1 Delivery state 5
1.2.2 Operator's obligation to exercise diligence 5
1.2.3 Description of safety symbols 6
1.2.4 Explanation of terms 6
2 Circuit examples 7
2.1 ESTOP function variant 1 (Category 3, PL d) 7
2.1.1 Parameters of the safe input and output terminals 7
2.1.2 Block formation and safety loops 8
2.1.3 Calculation 8
2.2 ESTOP function variant 2 (Category 3, PL d) 13
2.2.1 Parameters of the safe input and output terminals 13
2.2.2 Block formation and safety loops 14
2.2.3 Calculation 14
2.3 ESTOP function variant 3 (Category 4, PL e) 19
2.3.1 Parameters of the safe input and output terminals 19
2.3.2 Block formation and safety loops 20
2.3.3 Calculation 20
2.4 ESTOP function variant 4 (Category 4, PL e) 25
2.4.1 Parameters of the safe input and output terminals 25
2.4.2 Block formation and safety loops 26
2.4.3 Calculation 26
2.5 ESTOP function variant 5 (Category 4, PL e) 31
2.5.1 Parameters of the safe input and output terminals 31
2.5.2 Block formation and safety loops 32
2.5.3 Calculation 32
2.6 ESTOP function variant 6 (Category 3, PL d) 37
2.6.1 Parameters of the safe input and output terminals 37
2.6.2 Block formation and safety loops 38
2.6.3 Calculation 38
2.7 ESTOP function variant 7 (Category 4, PL e) 43