1
01/2008 Introduction
1.2 Handling information
1
© Siemens AG 2008 All rights reserved.
SINUMERIK 840Di sl/840D sl/840D Operating Manual HMI-Advanced (BAD) - 01/2008 Edition 1-19
The user can call up all the functions via the user interface.
The user interface consists of:
• Display units such as screen, LEDs, etc.
• Control elements such as keys, switches, handwheels, etc.
Read Chapter 2 "Operation" carefully before proceeding with further
chapters.
All subsequent chapters are written on the assumption that you have
done so!
1.2 Handling information
Caution
The operator panel front/machine control panel may only be opened
by trained personnel for servicing purposes.
Danger
Never open the operator panel front/machine control panel unless the
power supply has been disconnected! Failure to comply could result in
fatal injury!
Warning
Electronic components inside the operator panel/machine control
panel can be destroyed by electrostatic discharge if they are handled
incorrectly.
Before operating any of the control elements on this operator panel
front:
Please first read the explanations supplied in this documentation!
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