Siemens MTP700 Unified Comfort Hygienic Compact Operating Instructions page 20

Safety instructions
2.7 Important notes on touch screen
Personal injury or property damage due to no earth connection
An inadequate ground connection or the lack of one will cause malfunction of the capacitive
multi-touch screen. Functions may not work properly. This can result in personal injury or
property damage.
• Always connect the HMI device to a ground conductor.
• The ground conductor from the HMI device must be connected directly to ground with
You can find additional information on connecting the ground conductor in section
"Equipotential bonding" of the "Unified Comfort Panels
(http://support.automation.siemens.com/WW/view/en/109795870)" operating instructions.
Personal injury or property damage due to maloperation
Incorrect operation of touch devices cannot be ruled out. This can result in personal injury
or property damage.
Take the following precautions:
• Configure the plant so that safety-related functions are not operated with the touch
• Only carry out an operator action if a plant screen is shown on the HMI device screen.
• Switch off the HMI device for cleaning and maintenance.
NOTICE
Damage to the touch screen
The following operation significantly reduces the service life of the touch screen and can
lead to total failure:
• Touching with pointed or sharp objects
• Shock contact with hard objects.
Only touch the touch screen with a finger or a touch pen.
20
WARNING
low impedance (short connection, minimum conductor cross-section 4 mm
WARNING
screen.
Unified Comfort Panels Hygienic
Compact Operating Instructions, 04/2023, A5E52219907-AA
).
2