Vacon optbj Safety Manual page 28

vacon • 28
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
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
STO and SS1 safety functions
®
VACON 100 STO safety-related data (MR4-MR10):
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
2.31 10 /hour
•
-9 -10
10 /hour + 4.12 10 /hour = 2.31
• •
SIL 3
SIL CL 3
SIL 3
PL e
Category 3
-10
4.12 10 /hour
•
VACON100STO
-9
10 /hour
•