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SS1,
t
wo switching dev
ices connec
ted in ser
ies
6.3
S
S1 circ
uit example with two power c
ontact
ors con
nect
ed in series
App
lica
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on doc
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or f
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Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
1 Introduction
11
Important Note
11
Preliminary Remarks
11
Safe Torque off (STO)
12
Safe Stop 1 (SS1, Time-Controlled)
12
Using EMERGENCY STOP
13
Application Overview
13
Armature Circuit with One Switching Device
14
Armature Circuit with Two Switching Devices
14
Field Circuit Description
15
Safety Shutdown (E-STOP)
16
Parameterizing the Digital Outputs
17
Parameterizing the Digital Input for SS1 OFF3
18
Abbreviations and Circuit Diagram Symbols
19
2 Principle of the Dual Channel Architecture
21
3 STO Stop Category 0 with One Switching Device
23
Description
23
STO Circuit Example with One 3WL Circuit Breaker
24
STO Circuit Example with One Power Contactor
25
4 SS1 Stop Category 1 with One Switching Device
27
Description
27
SS1 Circuit Example with One 3WL Circuit Breaker
28
SS1 Circuit Example with One Power Contactor
29
5 STO, Two Switching Devices in Series
31
Description
31
STO Circuit Example with Two 3WL Circuit Breakers Connected in Series
32
STO Circuit Example with Two Power Contactors Connected in Series
33
6 SS1, Two Switching Devices Connected in Series
35
Description
35
SS1 Circuit Example with Two 3WL Circuit Breakers Connected in Series
36
SS1 Circuit Example with Two Power Contactors Connected in Series
37
7 STO Stop Category 0, Several Power Units
39
Description
39
STO Circuit Example with Two Power Units and Circuit Breakers
40
STO Circuit Example with Two Power Units and Power Contactors
41
8 SS1 Stop Category 1 for Several Power Units
43
Description
43
SS1 Circuit Example with Two Power Units and Circuit Breakers
45
SS1 Circuit Example with Two Power Units and Circuit Breakers
46
9 Evaluating the Safety Functions According to en ISO 13849 When Using One Switching Device
47
Evaluation of "Detect
48
Evaluation of "Evaluate
49
Evaluation of "Respond
50
Evaluation of "Respond" with One Power Switching Device
50
Evaluation of an 3WL Circuit Breaker
50
Evaluation of a Power Contactor
52
Result When Using a 3WL Circuit Breaker
53
Result When Using a Power Contactor
53
10 Evaluating the Safety Functions According to en ISO 13849 When Using Two Switching Devices
55
Evaluation of "Detect
56
Evaluation of "Evaluate
57
Evaluation of "Respond
58
Evaluation of "Respond" with Two Power Switching Devices
58
Evaluation of Two 3WL Circuit Breakers Connected in Series
58
Evaluation of Two Power Contactors Connected in Series
59
Result of "Respond" with Two 3WL Circuit Breakers
60
Result of "Respond" with Two Power Contactors
60
Result When Using Two 3WL Circuit Breakers
60
Result When Using Two Power Contactors
61
11 Evaluation of the Safety Function According to en 62061
63
Evaluation of "Detect
64
Evaluation of "Evaluate
65
Evaluation of "Respond
66
Evaluation of "Respond" with Two Power Switching Devices
66
Evaluation of Two 3WL Circuit Breakers
66
Evaluation of Two Power Contactors
67
Result "Respond" When Using Two 3WL Circuit Breakers
67
Result "Respond" When Using Two Power Contactors
68
Result When Using Two 3WL Circuit Breakers
68
Result When Using Two Power Contactors
69
12 Standards
71
13 Recommended Safety Relays
73
14 Connection Circuit Diagrams for the Switching Devices
75
15 Recommended Circuit Breakers and Power Contactors
81
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