3
PREFACE 
Preface
The described hard- and software are developments of the KEB Automation KG. The 
enclosed documents correspond to conditions valid at printing. Misprint, mistakes and 
technical changes reserved.
Signal words and symbols
Certain operations can cause hazards during the installation, operation or thereafter. 
There are safety informations in the documentation in front of these operations. Security 
signs are located on the device or machine. A warning contains signal words which are 
explained in the following table:
 DANGER
Dangerous situation, which will cause death or serious injury in case of 
non-observance of this safety instruction.
 WARNING
Dangerous situation, which may cause death or serious injury in case of 
non-observance of this safety instruction.
 CAUTION
Dangerous situation, which may cause minor injury in case of non-ob-
servance of this safety instruction.
NOTICE
Situation, which can cause damage to property in case of non-obser-
vance.
RESTRICTION
Is used when certain conditions must meet the validity of statements or the result is 
limited to a certain validity range.
Is used when the result will be better, more economic or trouble-free by following 
these procedures.
More symbols
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• / -  Enumerations are marked with dots or indents.
=>  Cross reference to another chapter or another page.
Note to further documentation. 
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