Commissioning the device
4.2 Switching off the device
SIMATIC IPC BX-39A
Operating Instructions, 07/2022, A5E50715883-AA
47
Fully disconnecting the device from the line voltage
Risk of electric shock
The On/Off switch does not fully disconnect the device from the line voltage.
There is also a risk of fire if the device or connecting lines are damaged.
• Always fully disconnect the device from the line voltage before performing work on the
device or when the device will not be used over an extended period of time.
• For control cabinet mounting: Use a central, easily accessible AC circuit breaker close to
the device, if possible.
• When you install the device, make sure that the power supply connector is easily
• Shut down the operating system and unplug the power plug from the front of the device,
see "Interfaces and operating elements (Page 13)".
The device is switched off and fully disconnected from the line voltage. No trickle current is
flowing.
Hardware reset
With the hardware reset, you can restart the device if it does no longer respond to keyboard
or mouse input. Any running operating system will not shut down safely.
If a hardware reset is performed, the device undergoes a hard reboot.
• Data in the main memory is deleted.
• Data on the hard disk drive may be lost.
• The device may be damaged.
Perform a hardware reset only in the case of an emergency.
• Operate the on/off switch to initiate a hardware reset, see "Interfaces and operating
elements (Page 13)".
See also
General safety instructions (Page 19)
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