Operating Instructions
Chapter
1
UE4740
8020182/1CUO/2022-08-26
©
SICK AG • Industrial Safety Systems • Germany • All rights reserved
7
Subject to change without notice
About this document
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.
The EFI gateway has multi-coloured LEDs. LED symbols describe the state of an LED at the
EFI gateway:
The LED is off.
Red
The LED is illuminated red.
Red
The LED is flashing red.
Red
The LED flashes red at short intervals.
Red
The LED flashes red twice at short intervals.
Instructions for taking action are shown by an arrow. Read carefully and follow the
instructions for action.
Warning!
A warning indicates concrete or potential dangers. They save you from harm.
Read warnings carefully and abide by them!
Software notes show the location in the CDS (Configuration & Diagnostic Software) where
you can make the appropriate settings and adjustments.
Recommendation
Note
,
Red
,
Red
,
Red
,
Red
Action
WARNING
