Chapter 1
16
About this document
1.4 Scope
These operating instructions are original operating instructions.
This manual is valid for all modules of the MELSEC-WS safety controller with the
exception of the network modules.
This document is the original manual.
To configure and undertake diagnostics on these devices you will need version V1.7.0
or later of the Setting and Monitoring Tool. To check the version of the software, on
the Extras menu select Info.
1.5 Abbreviations
used
External device monitoring
Enhanced function interface = safe SICK device communication
Electro-sensitive protective equipment (e.g. light curtains)
Normally closed
Normally open
Output signal switching device
Probability of dangerous failure per hour
Safety integrity level (safety class)
Safety integrity level claim limit
1.6 Symbols
used
Recommendations are designed to give you some assistance in your decision-making
process with respect to a certain function or a technical measure.
Notes provide special information on the device.
LED symbols describe the state of a diagnostics LED. Examples:
The LED is illuminated constantly.
The LED is flashing.
The LED is off.
Instructions for taking action are shown by an arrow. Read carefully and follow the
instructions for action.
ATTENTION!
An “ATTENTION” indicates concrete or potential dangers. It is intended to protect you
from harm and help avoid damage to devices and systems.
Read warnings carefully and follow them!
Otherwise the safety function may be impaired and a dangerous state may occur.
The term “dangerous state”
The dangerous state (standard term) of the machine is always shown in the drawings
and diagrams of this document as a movement of a machine part. In practical
operation, there may be a number of different dangerous states:
machine movements
electrical conductors
EDM
EFI
ESPE
NC
NO
OSSD
PFHd
SIL
SILCL
Recommendation
Note
, ,
Action
ATTENTION
Содержание MELSEC-WS series
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