Vacon 100 Safety Manual page 24

vacon • 22
Safe Stop (SS1) safety-related data
NOTE! The following chapter is only an informative example of combining products.
The SS1 safety function consists of two subsystems with different safety-related data.The subsys-
tem consisting of the time delayed safety relay is manufactured, for example, by PHOENIX CON-
TACT. The following types are available from this manufacturer:
• PSR-SCP-24DC/ESD/5X1/1X2/300 or
• PSR-SPP-24DC/ESD/5X1/1X2/300
See manufacturer user manual for more information regarding the time delayed safety relay.
PSR-SC/PP-24DC/ESD/5X1/1X2/300 safety-
related data from user manual and certificate:
IEC 61 508
EN 62061
DIN EN/ISO 13849-1
PFH
Subsystem
SafetyRelay
When the two subsystems are combined, the maximum safety integrity level or performance level reached is
the level of the lower subsystem.
• SIL 2 and PL d
The PFH value for a safety function of combined subsystems is the sum of all subsystems PFH values.
PFH = PFH
SS1 Safety Relay
• The result is within the requirements for SIL 2 and PL d.
5
SIL 2
SIL CL 2
PL d
Category 3
-9
•
1,89 10 /hour
Safe Stop 1 (SS1) safety-related data:
EN 61800-5-2
EN 62061
IEC 61508
DIN EN/ISO 13849-1
PFH
+ PFH = 1.89
VACON100 STO
STO and SS1 safety functions
Vacon 100 STO safety-related data:
EN 61800-5-2
EN 62061
+
IEC 61508
DIN EN/ISO 13849-1
PFH
Subsystem
SIL 2
SIL CL 2
SIL 2
PL d
Category 3
-9
•
2,14 10 /hour
-9 -10
• •
10 /hour + 2.52 10 /hour = 2.14
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SIL 3
SIL CL 3
SIL 3
PL e
Category 3
-10
•
2,52 10 /hour
Vacon100STO
-9
•
10 /hour