Danfoss VLT Safety Option MCB 150 Installation Manual

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Danfoss VLT Safety Option MCB 150 Installation Manual Manual pdf 96 page image

10 Appendix10.1 AbbreviationsAbbreviation DescriptionCat. Category (EN ISO 13849-1).CCF Common cause failure (IEC 61508, IEC 62061, EN 61511-1, EN ISO 13849-1).CCW Counterclockwise.CW Clockwise.DC Diagnostic coverage (EN ISO 13849-1, IEC 62061 (IEC61508-2)).DIx DI1: Digital input 1.DI2: Digital input 2.EMC Electromagnetic compatibility.MFFT/MTTFd Mean time to failure/mean time to dangerous failure (EN ISO 13849-1).OSSD Output signal switching device (EN 61496-1).PDS(SR) Power drive system (safety related).PELV Protective extra low voltage, low voltage with isolation. For more information: IEC 60364-4-41 or IEC 60204-1.PFD Probability of failure on demand (IEC 61508, IEC 62061).PFH Probability of failure per hour (IEC 61508, IEC 62061).PLC Programmable logic controller.PUST Power up self-test. Internal self-test on the safety option.SF Safe function.SIL Safety integrity level (IEC 61508, IEC 61800-5-2, IEC 62061).SLS Safely limited speed.SO Safety option.SRECS Safety-related electrical control system (IEC 62061).SRP/CS Safety-related part of control systems (EN ISO 13849-1).SS1 Safe stop 1.STO Safe Torque Off.TM Mission time (EN ISO 13849-1).AppendixInstallation Guide | VLT® Safety Option MCB 150/151AQ279747441421en-000101 / 130R029296 | Danfoss A/S © 2018.09