BECKHOFF C9900-U3x0 - Manual (Page 5)

Foreword
Description of safety symbols
The following safety symbols are used in this operating manual. They are
intended to alert the reader to the associated safety instructions.
Acute risk of injury!!
DANGER
If you do not adhere the safety advise adjoining this symbol, there is
immediate danger to life and health of individuals!
Risk of injury!
WARNING
If you do not adhere the safety advise adjoining this symbol, there is
danger to life and health of individuals!
Hazard to individuals!
CAUTION
If you do not adhere the safety advise adjoining this symbol, there is
obvious hazard to individuals!
Hazard to devices and environment
Attention
If you do not adhere the notice adjoining this symbol, there is obvious
hazard to materials and environment.
Note or pointer
Note
This symbol indicates information that contributes to better understanding.
2 C9900-U3x0