Safe Stop Of Automationdrive Fc 300 - Danfoss FC 300 Design Manual

FC 300 Design Guide

3.12 Safe Stop of AutomationDrive FC 300

The AutomationDrive FC 302, and also the AutomationDrive FC 301 in A1 enclosure, can perform the safety function
61800-5-2) or Stop Category 0 (as defined in EN 60204-1).
AutomationDrive FC 301 A1 enclosure: When safe stop is included in the drive, position 18 of Type Code must be either T or U. If the position 18 is B or
X, the Safe Stop Terminal 37 is not included!
Example:
Type Code for FC 301 A1 with safe stop: FC-301PK75T4Z20H4TGCXXXSXXXXA0BXCXXXXD0
It is designed and approved as suitable for the requirements of:
- Safety Category 3 in EN 954-1 (and ISO EN 13849-1)
- Performance Level "d" in ISO EN 13849-1
- SIL 2 Capability in IEC 61508 and EN 61800-5-2
- SILCL 2 in EN 61062
This functionality is called Safe Stop. Prior to integration and use of safe stop in an installation, a thorough risk analysis must be carried out on the
installation in order to determine whether the safe stop functionality and safety levels are appropriate and sufficient.
After installing safe stop, a commissioning test as specified in section
performed. A passed commissioning test is mandatory for fulfilling Safety Cat. 3 (EN 954-1) / PL "d" (ISO 13849-1)
The following values are associated to the different types of safety levels:
Performance Level "d":
- MTTFD (Mean Time To Dangerous Failure): 24816 years
- DC (Diagnostic Coverage): 99.99%
- Category 3
SIL 2 Capability, SILCL 2:
- PFH (Probability of Dangerous failure per Hour) = 7e-10FIT = 7e-19/h
- SFF (Safe Failure Fraction) > 99%
- HFT (Hardware Fault Tolerance) = 0 (1oo1D architecture)
MG.33.BC.22 - VLT ® is a registered Danfoss trademark
3 Introduction to AutomationDrive FC 300
Safe Torque Off
Safe Stop Commissioning Test
of the Design Guide must be
(As defined by IEC
3
3-37