Ransburg 9040 Cascade LV Control Unit 76580 - Manual (Page 10)

CP-97-04.3 7 7 7 7 7
9040 Cascade Low Voltage Control Unit - Introduction
INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION
DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION
The ITW Ransburg REA Process The ITW Ransburg REA Process The ITW Ransburg REA Process The ITW Ransburg REA Process The ITW Ransburg REA Process
The REA Process REA Process REA Process REA Process REA Process is an air atomized method for
applying coatings to objects electrostatically. The
REA system applies a high voltage DC charge to
the applicator nozzle electrode, creating an
electrostatic field between the atomizer and the
target object. The target is electrically grounded
through its support that may be either stationary
or moving.
A regulated pressure fluid system delivers coating
material to the atomizer. At the atomizer, air is
applied that atomizes the coating material forming
a spray mist that, under the influence of the
electrostatic field, becomes electrically charged.
The charged particles are attracted to, and
deposited on, the target object. The forces
between the charged particles and the grounded
target are sufficient to turn most normal overspray
around and deposit it on the side and back
surfaces of the target. Therefore, a high
percentage of the spray is deposited on the target.
The ITW Ransburg REM The ITW Ransburg REM The ITW Ransburg REM The ITW Ransburg REM The ITW Ransburg REM
Process
Process Process Process Process
This is a combined air-airless atomization method
for electrostatically applying coatings to objects.
The
REM System REM System REM System REM System REM System applies a high voltage DC
charge to the applicator nozzle electrode, creating
an electrostatic field between the atomizer and
the target object. The target is electrically grounded
through its support that may be either stationary
or moving.
A regulated high high high high high pressure fluid system delivers
coating material to the atomizer. There the coating
material is atomized by passing through an orifice
under pressure. The resulting spray mist then
becomes electrically charged under the influence
of the electrostatic field surrounding the atomizer.
The charged particles are attracted to and
deposited on the target object. The forces
between the charged particles and the grounded
target are sufficient to turn most normal overspray
around and deposit it on the side and back
surfaces of the target. Thus, a high percentage
of the spray is deposited on the target.
9040 Cascade Low V 9040 Cascade Low V 9040 Cascade Low V 9040 Cascade Low V 9040 Cascade Low Voltage oltage oltage oltage oltage
Control Unit Control Unit Control Unit Control Unit Control Unit
The 9040 Cascade Control Unit 9040 Cascade Control Unit 9040 Cascade Control Unit 9040 Cascade Control Unit 9040 Cascade Control Unit converts
standard AC line voltage to a high frequency, low
voltage signal ranging from 0 to 10 Vrms. This
signal is supplied to the REA/REM applicator via
the low voltage cable. At the applicator, the low
voltage signal is converted to DC high voltage.
The voltage/current characteristic is designed to
optimize the charging process under varying load
conditions, and to limit the operating current to a
safe maximum value.
In addition to supplying low voltage output to the
applicator, the 9040 Cascade control unit also
provides controls for AC power ON/OFF, infinite
high voltage adjustment, a high voltage meter, a
current meter, an AC power ON indicator, a high
voltage ON indicator, a cable fault indicator, and a
current overload indicator and reset switch.
Additionally, output terminals are provided for
remote overload reset, analog current output, and
high voltage control. Interlock connections for a
conveyor and exhaust fan are also provided. A
combination triple setpoint/analog input control
board is also supplied with 9040 Cascade control
units powering automatic spray applicators.
Optional 1/4 rack Totalizer and Pneumatics
modules are available that will slide into the
existing 9040 full rack enclosure. The Totalizer
module is an open loop flow metering system that
provides an easy and accurate means of
monitoring fluid flow rates and totals. The
pneumatics module consists of the required
regulators, gage, and filters to deliver air to one
or more electrostatic spray applicators. Utilizing
these modules in addition to the 9040 Cascade
control unit, allows for grouping of all controls
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