Envipco U48DFF, Service Manual

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3-13
RVM Controller Box
3.7. RVM Controller Box
The
RVM
Controller Box contains the computer components that run the machine. It governs machine
activity and monitors the speed and safety of
RVM
operation. Additionally, the hard drive stores all of
the software and data that runs the machine and data accounting processes: the list of valid bar codes,
RVM
parameters and configuration, the commodity counts, and customer payout data.
3.7.1. RVM Controller Box Electrical Components
The
RVM
Controller Box contains electrical components that power the
RVM
electronics. See Figure 3-
13 for an overview.
FIGURE 3-13.
RVM Controller Box Electrical Components
These are the functions of the
RVM
electrical components:
•
DC
power distribution - distributes power from the power supplies to the devices
•
DC
to
DC
converter - provides power from the battery to the circuit boards and
display when
AC
power is lost. It converts the power to 12
V
, no matter what the
battery voltage is.