Reer MZERO - Abbreviations and Symbols; Applicable Standards

STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
8541403 • 19/07/2021 • Rev.1 7
English
Abbreviations and symbols
MZD = MZERO Safety Designer: MZERO configuration SW running in Windows
LL0, LL1 = Logic Level 0, Logic Level 1
OSSD = Output Signal Switching Device: solid state safety output
MTTFd = Mean Time to Dangerous Failure
PL = Performance Level
PFHd = Probability of a dangerous failure per Hour
SIL = Safety Integrity Level
SILCL = Safety Integrity Level Claim Limit
SW = Software
Applicable standards
MZERO complies with the following European Directives:
• 2006/42/EC "Machinery Directive"
• 2014/30/EU "Electromagnetic Compatibility Directive"
• 2014/35/EU "Low Voltage Directive"
and is built to the following standards:
CEI EN 61131-2
Programmable controllers, part 2:
Equipment requirements and tests
EN ISO 13489-1
Safety of machinery:
Safety related parts of control systems. General principles for design
EN 61496-1
Safety of machinery: Electro-sensitive protective equipment. Part 1: General
requirements and tests.
EN 61508-1
Functional safety of electrical/electronic/programmable electronic safety-related
systems: General requirements.
EN 61508-2
Functional safety of electrical/electronic/programmable electronic safety-related
systems: Requirements for electrical/electronic/programmable electronic safety-
related systems.
EN 61508-3
Functional safety of electrical/electronic/programmable electronic safety-related
systems: Software requirements.
EN 61508-4
Functional safety of electrical/electronic programmable electronic safety related
systems: Definitions and abbreviations.
IEC 61784-3
Digital data communication for measurement and control: Functional safety
fieldbuses.
EN 62061
Safety of machinery. Functional safety of safety-related electrical, electronic and
programmable electronic control systems
EN 81-20
Safety rules for the construction and installation of lifts. Lifts for the transport of
persons and goods. Passenger and goods passenger lifts
EN 81-50
Safety rules for the construction and installation of lifts. Examinations and tests.
Design rules, calculations, examinations and tests of lift components
Table 1