OP 73micro, TP 177micro (WinCC flexible)
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
17
Safety instructions and general notes
2
2.1
Safety instructions
Working on the cabinet
WARNING
Open equipment
The HMI device is an open equipment. This means that the HMI device may only be
installed in cubicles or cabinets, whereby the device can be operated from the front panel.
Access to the cubicle or cabinet in which the HMI device is installed should only be possible
by means of a key or tool and for personnel who have received instruction or are
authorized.
Danger, high voltage
Opening the cabinet will expose high voltage parts. Contact with these parts could be fatal.
Switch off the power supply to the cabinet before opening it.
Hazardous areas
When operating the HMI device in hazardous areas the following warning applies.
WARNING
Explosion Hazard
Do not disconnect while circuit is live unless area is known to be non-hazardous.
Substitution of components may impair suitability for Class I, Division 2 or Zone 2.
High frequency radiation
NOTICE
Unintentional operating situations
High frequency radiation, from mobile phones for example, can cause unintentional
operating situations.