Ransburg 9040, Service Manual

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9040 Low Voltage Control Unit Kit- Introduction
INTRODUCTION
DESCRIPTION
The Ransburg spray Process
The Ransburg Spray Process is an air atomized
method for applying coatings to objects
electrostatically. This 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.
9040 Cascade Low Voltage
Control Unit Kit
The
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 an external cascade through a low
voltage cable. The external cascade converts the
low voltage signal into a high voltage. This high
voltage is transmitted through the cable to the
applicator. At the applicator an electrode in the
applicator creates a DC high voltage field the
spray goes through and picks up the electrostatic
charge. When the material is directed to a
grounded target, more material is attracted to the
target yielding higher painting efficiency.
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.
9040 Cascade Low Voltage
Control Unit Kit 80072 and
80078
The 9040 Cascade Low Voltage Kit 80072-XXX
and 80078-XXX are designed to be used with
either the Esta-Quick Applicator (AEMD 500) or
the Evolver SE product (A12455-XXXX). The
difference in the units is the 80072-XXX has a
potted cascade where the 80078-XXX has an oil
filled cascade.
The only combination of units that carry any
approval is the AEMD500 used with the 80072-
XXX units as described in this manual. Any other
combination of applicator and 9040 unit does not
have any agency approval associated with it.
When using equipment that is not approved, the
user needs to be aware of the code requirements
needed to operate safely. If there is any question
regarding safe installation requirements when
using this product, refer to European Norms (EN
50 176) or NFPA-33.
7
CP-11-01
Note