Beckhoff CP7902-0001-0000 Economy Control Panel with DVI/USB Extended interface

Beckhoff CP7902-0001-0000

CP79xx | Economy Control Panel with DVI/USB Extended interface

Balance between latest PC technology and long-term availability of control components

The Control Panels of the type CP79xx in protection rating IP65 are available in a wide range of screen sizes.

Together with the software employed, they act as the centerpiece of a variety of automation tasks, such as the control of machines, processes and logistic systems, the networking of plant parts, the data acquisition or image processing.

Single-touch technology with guaranteed long-term availability

Even if industrial applications without modern multi-touch operating scenarios are unthinkable today in the course of general digitization, there still remains a large market for single-touch applications.

These applications are frequently realized with the help of resistive touch technology. Beckhoff has been using this technology successfully in a large number of single-touch Control Panels since the end of the 1990s.

Product variants    Transmission technology    Product status

CP79xx-xxxx-0010    DVI/USB Extended 2.0    regular delivery

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 visualized

and displayed to the user. Once the PC has shut down, the UPS output is

switched off in order to avoid total discharge of the battery.

Connecting Power Supply

The external wiring consists of the connection of the power supply, the

battery pack (optional) and the connection of customized components for

shutting down the PC.

Cable Cross Sections

Note cable cross sections,

avoid voltage drop!

For the connection of the power supply, wiring  with a cable-cross-section

of 1.5 mm2  must be used.

With bigger distances between voltage source and PC, you take the

voltage drop as a function of the cable-cross-section as well as voltage

fluctuations of your distribution voltage into account, so that is secured that

the voltage doesn’t fall under 22 V at the power supply.