Siemens 620 Manual Do Utilizador

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Setting Up and Operating the SIMATIC Box PC 620
3-11
SIMATIC Box PC 620  Manual
A5E00131465-01
Equipotential Measures
Low-impedance ground connections ensure that faults arising from external power
supply cables, signalling cables or cables to peripheral units are diverted.
Therefore connect the equipotential grounding connection on the system housing
to the central earth terminal of the cabinet or the unit, into which the computer is
fitted, in such a way that it has low impedance (large surface area, large contacts).
The minimum cross section should not be less than 5 mm
2
.
The connection is on the side of the device and is identified by the symbol:
 
Connecting and Switching on the SIMATIC Box PC 620
Before you connect the Box PC to the mains, the keyboard, mouse and display or
monitor must be connected.
1. Insert the connector cable of these peripheral units into the corresponding 
sockets on the port side of the Box PC (see Section 3.4.).
2. Connect the device to the mains.
3. The device is now ready for power supply operation and is now in service.
Switching off the SIMATIC Box PC 620
Before switching off the Box PC 620, you have to shut down the operating system
to avoid loss of data. The Box PC has no mains switch and is switched off after
only disconnection from the  mains.
Notice
If you are working with Windows, you always have to use Start > Shut Down for
switching off.