Ransburg EFM & EFMD Solvent Applicator 76480, 76482, 76485, 76488 - Manual (Page 20)

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EFM(D) Solventborne Robotic Atomizers - Operation
OPERA OPERA OPERA OPERA OPERATION TION TION TION TION
These instructions indicate the general operating
parameters for this product in a normal working
relationship with other ITW Ransburg system
components in typical use. Each user application
is unique and operation should be initiated under
the guidance of an authorized ITW Ransburg
representative and/or be based on carefully
conducted tests and on careful observation of the
initial production characteristics.
SPRA SPRA SPRA SPRA SPRAY Y Y Y Y APPLCIA APPLCIA APPLCIA APPLCIA APPLCIAT T T T TOR OR OR OR OR
CONTROLS CONTROLS CONTROLS CONTROLS CONTROLS
Fluid flow, trigger, dump, atomization air pressure,
and fan air pressure are all remotely controlled
from the robot PLC. Atomization air, fan air, and
fluid trigger timing are adjusted electronically from
the LECU5004 MicroPak Control Unit. Figure 4 in
the "Operation" section generalizes the function of
the air and fluid passages internal to the applicator.
POWER SUPPL POWER SUPPL POWER SUPPL POWER SUPPL POWER SUPPLY Y Y Y Y
CONTROLS CONTROLS CONTROLS CONTROLS CONTROLS
Refer to ITW Ransburg Service Manual MicroPak MicroPak MicroPak MicroPak MicroPak
Control Unit Control Unit Control Unit Control Unit Control Unit, for complete information regarding
power supply operation.
V V V V Voltage oltage oltage oltage oltage
The LECU5004 MicroPak Control Unit provides a
low voltage signal to the high voltage cascade
within the spray applicator. The unit may be
configured for local mode operation. The output
voltage/current levels are set by potentiometers
on the front panel in this mode. The unit may also
be configured for remote analog control (0-10
VDC) from a PLC controller.
Display Function Display Function Display Function Display Function Display Function
The display board continually displays the kV and
current output information.
GENERAL GENERAL GENERAL GENERAL GENERAL INFORMA INFORMA INFORMA INFORMA INFORMATION TION TION TION TION
AND ADJUSTMENTS AND ADJUSTMENTS AND ADJUSTMENTS AND ADJUSTMENTS AND ADJUSTMENTS
Paint Conductivity Paint Conductivity Paint Conductivity Paint Conductivity Paint Conductivity
The EFM/EFMD spray applicators are capable of
spraying typical automotive and industrial solvent
base paints including metallic and mica paints.
Spray tests, however, should always be conducted
before selecting an atomizer for use with highly
conductive paints.
T T T T Target Distance arget Distance arget Distance arget Distance arget Distance
The distance between the applicator tip and the
article being painted should be between 10 and 14
inches. Excessive distance causes a waste of
coating material and wrap back (paint particles
being deposited on the applicator body or the robot
arm). At close distances the voltage at the tip of
the applicator will be reduced, which decreases
the charging effect of the applicator.
All of the display signals are buffered and
continuously available for remote panels or PLC
monitoring. There is also an array of LEDs, which
display the status of the controller for operator
convenience.
> When using paints with metal par-
ticles, a problem of alignment may oc-
cur. When alignment is achieved, appli-
cator current increases to maximum and
applicator tip voltage decreases to near
zero kV. Alignment can normally be
controlled by making sure that the power
supply is turned on slightly after paint
begins to flow and by turning the power
supply off shortly before the paint stops
flowing. This timing function is controlled
by the LECU5004 MicroPak Control Unit
and is adjustable by the user. Refer to
ITW Ransburg Service Manual
MicroPak Control Unit
MicroPak Control Unit MicroPak Control Unit MicroPak Control Unit MicroPak Control Unit, for more de-
tails.
N O T E N O T E N O T E N O T E N O T E