HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 6 of 189
Version: 50F
6 RESPONSE TIMES OF THE PSC1 .................................................................... 133
6.1 Response times in standard operation ............................................................................................... 134
6.2 Response times for FAST_CHANNEL ................................................................................................... 135
6.3 Response times for overspeed distance monitoring ........................................................................... 135
6.4 Response times when using the PSC1-E-3x ......................................................................................... 137
7 COMMISSIONING .............................................................................................. 139
7.1 Procedure ........................................................................................................................................... 139
7.2 Sequences for switching on ................................................................................................................ 139
7.3 Reset behaviour .................................................................................................................................. 140
7.3.1 Reset types and triggering element .................................................................................... 141
7.3.2 Reset timing ........................................................................................................................ 142
7.3.3 Reset function ..................................................................................................................... 142
7.3.3.1 Example reset function with protection against incorrect usage .................................... 144
7.4 LED indication ..................................................................................................................................... 147
7.5 Parameter configuration..................................................................................................................... 148
7.6 Function test ....................................................................................................................................... 148
7.7 Validation ........................................................................................................................................... 148
8 SAFETY-RELATED CHECK .............................................................................. 149
9 MAINTENANCE ................................................................................................. 150
9.1 Modification / dealing with changes to the device ............................................................................. 150
9.2 Replacement of a module ................................................................................................................... 150
9.3 Servicing interval ................................................................................................................................ 150
10 TECHNICAL DATA ......................................................................................... 151
10.1 Ambient conditions ............................................................................................................................ 151
10.2 Safety-related characteristic data ....................................................................................................... 151
11 SWITCH TYPES .............................................................................................. 152
12 NOTES FOR DESIGNING, PROGRAMMING, VALIDATING AND TESTING
SAFETY-RELATED APPLICATIONS ....................................................................... 158
12.1 Risk assessment .................................................................................................................................. 158
12.2 Technical documentation required ..................................................................................................... 160
12.3 Steps required for designing, realisation and testing .......................................................................... 161
12.3.1 Phases of the V model ....................................................................................................... 162
12.3.2 Specification of the safety requirements (breakdown) ....................................................... 163
12.3.3 Specification of the functional safety system ...................................................................... 166
12.3.3.1 Definition of the safety functions ................................................................................. 166
12.3.3.2 Performance Level required (PLr) (additional emergency stop) ................................ 166
12.3.3.3 Example – specification of the safety functions in tabular form ................................. 167
12.3.4 Software specification ......................................................................................................... 168
12.3.5 Hardware specification ....................................................................................................... 170
12.3.5.1 Selection of SRP/CS and equipment ......................................................................... 170
12.3.5.2 Examples for hardware specification .......................................................................... 171
12.3.5.3 Consideration of systematic failures ........................................................................... 172
12.3.6 Hardware and software design ........................................................................................... 174
12.3.7 Check on the hardware design ........................................................................................... 174
12.3.7.1 Iterative check on the safety level achieved ............................................................... 174
12.3.8 Verification of software (program) and parameters ............................................................ 178
12.3.8.1 FUP check .................................................................................................................. 178
12.3.8.2 Validating FUP against IL and parameters using validation report ............................ 181
12.3.9 Performance of system tests / FIT test (Fault Injection Test) ............................................. 183
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