Oliver Platinum Series, Руководство по эксплуатации, Страница: 22 / 61

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III. Control Components of the gravity
The Voyager and Maxi Cap Platinum gravities are automated machine, which means that instead of
having dials or mechanical devices to control the air flow, deck speed, and other components that
have to be individually controlled in a mechanical way the entire process is done via a Human
Machine Interface (HMI) and a Programmable Logic Controller (PLC). Oliver has teamed up with
Rockwell Automation and Allen Bradley to provide the user with the best interface possible. The HMI
is a small touchscreen that allows the user to input desired settings, which are then transferred to
the PLC, which then uses its internal programming to run the machine. The PLC is like a small
computer. It has a processor, memory, inputs, outputs, and a small display for additional controls. It
is the brains of the automated machine. One additional component to the automated process is the
Powerflex 525 Variable Frequency Drive (VFD). It is what the PLC uses to give exact control over all
of the fans and the eccentric motor. It is critical to know and understand the difference between the
three when going through the guide.
Figure 13: The Programmable Logic Controller – Micrologix 1400
Figure 14: The Human Machine Interface PV 800