3 Fundamentals of press design

96 Fundamentals of press design
Control functions can be subdivided into central and local systems:
central control functions refer to higher-level press functions, while
local control functions are used for manual operation of individual
functions directly at the press.
Control units are comprised of input and display units for operation
and visualization and can range from simple keys with pilot lamps
through to industrial PCs with high-resolution color monitors. The
main function of the visual display system is to support the press operator
on start-up and repeat start-up of the press, for example following
a die change or machine fault, and to permit the input of various operating
parameters (Fig.3.5.2). In addition, the visual display system can
be used to store die and machine data and for logging functions. Information
system functions which are integrated into the visual display
system offer the user support both for maintenance work and troubleshooting.
There is an increasing tendency for this type of system to
make use of multi-media technology (cf. Sect.4.6.7).
Fig. 3.5.2 Tooling data input mask for cam values
Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998