Operating Instructions Chapter 1
M4000 Adv., Adv. A/P, Area
8010797/YT72/2016-02-19 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 9
Subject to change without notice
About this document
1.6 Symbols used
R
ecommendations are designed to give you some assistance in your decision-making
process with respect to a certain function or a technical measure.
Refer to notes for special features of the device.
Display indications show the status of the 7Esegment display on sender or receiver:
Constant display of the letter E
Flashing display of the digit 8
Alternating display of E and 4
The depiction of digits on the 7Esegment display oft the M4000 can be rotated by 180°
with the aid of the CDS. In this document the depiction of the 7Esegment display is
however always in the normal, non-rotated position.
LED symbols describe the status of an LED:
The LED is constantly illuminated.
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.
WARNING
Warning!
A warning indicates an actual or potential risk or health hazard. They are designed to help
you to prevent accidents.
Read carefully and follow the warning notices!
Software notes show the location in the CDS (Configuration & Diagnostic Software) where
you can make the appropriate settings and adjustments.
Sender and receiver
In drawings and diagrams, the symbol denotes the sender and the symbol denotes
the receiver.
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
visible or invisible radiation
a combination of several risks and hazards
Recommendation
Note
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