Installation Instructions
Power Supply Connection with
24 V
DC
power supply unit (optional)
The Industrial PC is optionally fitted with a 24 V
DC
power supply unit .
i
Note
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.
Danger
Danger of Explosion if using other battery packs!
Beckhoff power supply technology
Schematic diagram of
power supply unit wirings
Innovative solution for
shutting down Industrial
PCs
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.
In order to maintain a screen display for the Industrial PC in the event of a
power failure, the power supply unit is equipped with a UPS output for
connecting a Control Panel. This enables a power failure to be visualised
and displayed to the user. Once the PC has shut down, the UPS output is
C6640, C6650
13
Summary of Contents for C6640
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