When the Industrial PC is provided with a power supply unit with
integrated UPS (order option) you can realize an uninterruptible power
supply (UPS) using the battery pack C9900-U330.
Industrial PCs equipped with a UPS are in actual use frequently switched
off by simply turning off the supply voltage. In this case the PC shuts down
via the battery. However, over time this reduces the service life of the
battery.
The new Beckhoff power supply technology approach addresses this
problem and now offers the user the option of switching the PC off without
the need for using the battery, thereby reducing the load on the battery.
In addition to the main switch this innovative solution uses an ON/OFF
switch for the machine. Basically, the main switch remains switched on and
provides the power supply for the PC during shutdown.
Once the PC has shut down, the PC power supply unit issues a signal to
indicate that the process is complete and that the main voltage can be
switched off. This can be done manually via a signal lamp connection or
via a contactor. With this solution the main switch generally only has to be
switched off if the control cabinet has to be opened.
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