schmersal PSC1 User Manual

Installation manual
HB-37420-810-01-25F-EN PSC1-C-100 Installation manual - V2.2.docx Page 6 of 201
Version: 25F
7 COMMISSIONING .............................................................................................. 151
7.1 Procedure ........................................................................................................................................... 151
7.2 Sequences for switching on ................................................................................................................ 151
7.3 Reset behaviour .................................................................................................................................. 153
7.3.1 Reset types and triggering element .................................................................................... 154
7.3.2 Reset timing ........................................................................................................................ 155
7.3.3 Reset function ..................................................................................................................... 155
7.3.3.1 Example reset function with protection against incorrect usage .................................... 157
7.4 LED indication ..................................................................................................................................... 160
7.5 Parameter configuration..................................................................................................................... 161
7.6 Function check .................................................................................................................................... 161
7.7 Validation ........................................................................................................................................... 161
8 SAFETY-RELATED CHECK .............................................................................. 162
9 MAINTENANCE ................................................................................................. 163
9.1 Modification / dealing with changes to the device ............................................................................. 163
9.2 Replacement of a module ................................................................................................................... 163
9.3 Servicing interval ................................................................................................................................ 163
10 TECHNICAL SPECIFICATIONS ..................................................................... 164
10.1 Ambient conditions ............................................................................................................................ 164
10.2 Safety-related characteristic data ....................................................................................................... 164
11 SWITCH TYPES .............................................................................................. 165
12 NOTES FOR DESIGNING, PROGRAMMING, VALIDATING AND TESTING
SAFETY-RELATED APPLICATIONS ....................................................................... 171
12.1 Risk assessment .................................................................................................................................. 171
12.2 Technical documentation required ..................................................................................................... 173
12.3 Steps required for designing, realisation and testing .......................................................................... 174
12.3.1 Phases of the V model ....................................................................................................... 175
12.3.2 Specification of the safety requirements (breakdown) ....................................................... 176
12.3.3 Specification of the functional safety system ...................................................................... 179
12.3.3.1 Definition of the safety functions ................................................................................. 179
12.3.3.2 Performance Level required (PLr) (additional emergency stop) ................................ 180
12.3.3.3 Example – specification of the safety functions in tabular form ................................. 181
12.3.4 Software specification ......................................................................................................... 182
12.3.5 Hardware specification ....................................................................................................... 184
12.3.5.1 Selection of SRP/CS and equipment ......................................................................... 184
12.3.5.2 Examples for hardware specification .......................................................................... 185
12.3.5.3 Consideration of systematic failures ........................................................................... 186
12.3.6 Hardware and software design ........................................................................................... 188
12.3.7 Check of the hardware design ............................................................................................ 188
12.3.7.1 Iterative check on the safety level achieved ............................................................... 188
12.3.8 Verification of software (program) and parameters ............................................................ 191
12.3.8.1 FUP check .................................................................................................................. 191
12.3.8.2 Validating FUP against IL and parameters using validation report ............................ 193
12.3.9 Performance of system tests / FIT test (Fault Injection Test) ............................................. 195
13 APPENDIX ...................................................................................................... 196
13.1 Appendix A – categorisation of the switch types ................................................................................ 196
13.2 CE – declaration of conformity ............................................................................................................ 201

schmersal PSC1 Specifications

General

Brand	schmersal
Model	PSC1
Category	Controller
Language	English