B 2-2 Control
2.
Overview of the Control
System
Control
Assembly
The Vista control
system controls how
your
unit operates.
The control
system includes
a
variety
of
printed
circuit boards
(hereafter
referred to
as boards)
and other components that
you
should
be
familiar
with to
safely
troubleshoot and repair
your
unit.
See
Figure B 2-1.
The main components of
the control system are
the
control-end
frame, the controlassembly,
and the operator
panel.
The
control
assembly is mounted on the inside
of the control-end frame. The
operator
panel
is mounted on the front of
the control-end frame. The
control
assembly is made up
of
three
boards that are required for
your
unit to function
properly.
Refer
to the
following
table.
Table B 2-1
ControlAssembly
Boards
1
2
5
3
4
%
4130076
Fig. B 2-1
Control Assembly Components
1. Power
board 4. Control-end
frame
2. Control
board 5. Operator
panel
3. Display
board
ControlAssembly Board
Function
Power board
Provides
power
to the unit
and
supplies the heater
power
for most
of the unit's heated
components
Controlboard
Contains the
Vista
software
chip and
controls how the unit
operates
Display
board Allows the
displays to function
B2EN-04-[3V-X-4XXVI-s
41
-3000v
lssued 5/00
@000 Nordson
Corporalion
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