Name: schmersal PSC1-C-10-MC
Brand: schmersal
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Installation manual

HB-37350-810-01-50F-EN PSC1-C-10 Installation manual V2.1.docx Page 163 of 189

Version: 50F

12.3.2 Specification of the safety requirements (breakdown)

The safety requirements are to be analysed in detail based on the standards to be

applied, e.g. product standards.

Source: General specifications, extract BGIA Report 2/2008 on EN ISO 13849-1

Table of Contents4
Important Notes8
Definitions8
Reference Documents9
Abbreviations Used10
Safety Instructions11
Intended Use11
Usage in Regions with UL/CSA Requirement12
General Safety Instructions13
Operating and Service14
Transport/Storage15
Module Overview16
Device Characteristic Data17
Basic Modules17
PSC1-C-10 (-Fbx17
Tech. Characteristic Data PSC1-C-10 (-Fbx /MC)19
PSC1-C-10-SDM1 (-Fbx /MC)21
Tech. Characteristic Data PSC1-C-10-SDM1 (-Fbx /MC)23
PSC1-C-10-SDM2 (-Fbx /MC)27
Tech. Characteristic Data PSC1-C-10-SDM2 (-Fbx (1) )27
Central Expansion Modules29
PSC1-E-31 and PSC1-E-3329
Tech. Characteristic Data: PSC1-E-31 and PSC1-E-3331
Decentralised Expansion Modules (in Preparation)33
Psc1-E-3733
Tech. Characteristic Data: PSC1-E-3734
Optional Universal Communication Interface36
Tech. Characteristic Data: Optional Universal Communication Interface37
Possible Combinations38
Using the Memory Card38
Encoder Specifications39
Derating Outputs39
Marking40
Type Plate40
Items Supplied41
Safety-Related Features42
General Layout, Safety-Related Architecture and Characteristic Data42
Safety-Related Characteristic Data and Circuitry for Sensors Connected44
Digital Sensors44
Characteristics of the Sensors / Input Elements44
DC Digital Sensors/Inputs45
Classification of the Safe Digital Inputs49
Connection Examples, Digital Sensors/Safety Switch51
Overview of Achievable PL for Digital Safety Inputs56
Sensors for Speed And/Or Position Acquisition58
General Safety-Related Layout of Sensor Interface for Position And/Or Speed58
General Diagnostic Measures for Encoder Interface59
Encoder Types and Their Combinations, Diagnostic Characteristic Data60
Specific Diagnostic Measures in Relation to the Encoder Type Used66
Safety-Related Shutdown Thresholds, Encoder Systems for Position and Speed Acquisition67
Safety-Related Assessment of the Encoder Types and Their Combination71
Safety-Related Characteristic Data and Circuitry for the Outputs73
Characteristics of the Output Elements73
Diagnostics in the Shutdown Circuit75
Diagnostic Functions75
Overview of DC in Relation to Selected Diagnostic Functions76
Permissible Capacitive and Inductive Load on Safe Outputs77
Digital Outputs78
Example Circuits, Basic Outputs80
Digital Outputs I/O (Iqqx)87
Classification of the I/O (Iqqx) on Usage as an Output87
Example Circuits for Safe Digital Outputs I/O (Iqqx)88
Overview of Achievable PL for Digital Safety Outputs94
Connection and Installation96
General Installation Instructions96
Installation and Mounting PSC1 Module97
Mounting Backplane Bus97
Arrangement Examples98
Psc1-C-10-Sdm1 + Psc1-E-3198
Psc1-C-10-Sdm2 + Psc1-E-3398
Mounting the Modules99
Mounting on C Rail99
Mounting on Backplane Bus100
Installation and Configuration of Master  Master (SMMC) and Master  Slave (SDDC)101
Schematic Diagram of the Network Topology102
Installation of I/O Expansion103
Physical Address Configuration for the Slave Modules (Central / Decentral)103
Terminal Assignment104
Terminal Assignment PSC1-C-10 (-Fbx/-MC)105
Terminal Assignment PSC1-C-10-SDM1 (-Fbx/-MC)107
Terminal Assignment PSC1-C-10-SDM2 (-Fbx/-MC)109
Terminal Assignment PSC1-E-31111
Terminal Assignment PSC1-E-33112
Terminal Assignment PSC1-E-37 in Preparation114
Terminal Assignment PSC1-C-10(-Sdmx)-Fbx115
External 24 VDC Power Supply116
Connection of the External Encoder Supply118
Incremental, HTL (on Request), SIN/COS, SSI118
Connection of the Digital Inputs120
Connection of Position and Speed Sensors121
General Instructions121
Encoder Interface Assignment123
Connection Variants124
Connection of an Absolute Encoder as Master124
Connection of an Absolute Encoder as Slave125
Connection of an Incremental Encoder with TTL Signal Level126
Connection of a SIN/COS Encoder127
Connection of Proximity Switch PSC1-C-10-SDM1/2128
Configuration of the Measurement Sections129
General Description of the Encoder Configuration129
Sensor Type129
Absolute Encoder129
Incremental Encoder131
Sinecosine Encoder - Standard Mode131
Proximity Switches131
Extended Monitoring with 2 Proximity Switches132
Response Times of the Psc1133
Response Times in Standard Operation134
Response Times for FAST_CHANNEL135
Response Times for Overspeed Distance Monitoring135
Response Times When Using the PSC1-E-3X137
Commissioning139
Procedure139
Sequences for Switching on139
Reset Behaviour140
Reset Types and Triggering Element141
Reset Timing142
Reset Function142
Example Reset Function with Protection against Incorrect Usage144
LED Indication147
Parameter Configuration148
Function Test148
Validation148
Safety-Related Check149
Maintenance150
Modification / Dealing with Changes to the Device150
Replacement of a Module150
Servicing Interval150
Technical Data151
Ambient Conditions151
Safety-Related Characteristic Data151
Switch Types152
Notes for Designing, Programming, Validating and Testing Safety-Related Applications158
Risk Assessment158
Technical Documentation Required160
Steps Required for Designing, Realisation and Testing161
Phases of the V Model162
Specification of the Safety Requirements (Breakdown)163
Specification of the Functional Safety System166
Definition of the Safety Functions166
Performance Level Required (Plr) (Additional Emergency Stop)166
Example - Specification of the Safety Functions in Tabular Form167
Software Specification168
Hardware Specification170
Selection of SRP/CS and Equipment170
Examples for Hardware Specification171
Consideration of Systematic Failures172
Hardware and Software Design174
Check on the Hardware Design174
Iterative Check on the Safety Level Achieved174
Verification of Software (Program) and Parameters178
FUP Check178
Validating FUP against IL and Parameters Using Validation Report181
Performance of System Tests / FIT Test (Fault Injection Test)183

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General

Brand	schmersal
Model	PSC1-C-10-MC
Category	Control Unit
Language	English

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