Ransburg 9040 Cascade LV Control Unit 76580 - Manual (Page 25)

CP-97-04.3 22 22 22 22 22
9040 Cascade Low Voltage Control Unit - Operation
OPERA OPERA OPERA OPERA OPERATING TING TING TING TING
PROCEDURES PROCEDURES PROCEDURES PROCEDURES PROCEDURES
1. Ensure that the AC power, pneumatic and low
voltage cables are connected as described in the
“Installation” section of this manual.
> Check that the control unit is Check that the control unit is Check that the control unit is Check that the control unit is Check that the control unit is
properly grounded! properly grounded! properly grounded! properly grounded! properly grounded!
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!!!!!
2. Be sure that the high voltage adjustment knob
is turned FULLY counter-clockwise.
3. Turn the ON/OFF switch to the ON position.
The green LED will light indicating that AC power
is being supplied to the control unit.
4. The voltage to the REA-70 and REA-90
applicators is activated by supplying adequate air
to the flow switch when the applicator is triggered.
The voltage to the REM applicator is activated by
a magnet in the applicator air valve assembly
which triggers a reed switch inside the low voltage
cable assembly. The voltage to automatic
applicators is activated by supplying adequate
pressure signals to the control unit pressure
switches or be triggering an external high voltage
control device connected across 2PL-1 and 2PL-
2.
5. Turn the voltage adjustment knob to the desired
operating point as indicated by the kilovolt and
microamp meters.
Kilovolt and Microamp Meters Kilovolt and Microamp Meters Kilovolt and Microamp Meters Kilovolt and Microamp Meters Kilovolt and Microamp Meters
The kilovolt meter indicates the voltage in
thousands of volts (kv) present at the applicator
electrode. The microamp meter indicates the
current in millionths of amps (uA) leaving the
applicator electrode.
High V High V High V High V High Voltage Adjustment Knob oltage Adjustment Knob oltage Adjustment Knob oltage Adjustment Knob oltage Adjustment Knob
The high voltage adjustment knob allows infinite
control of the applicator electrode voltage between
0 and rated kV.
Overload Indicator/Reset Button Overload Indicator/Reset Button Overload Indicator/Reset Button Overload Indicator/Reset Button Overload Indicator/Reset Button
Lighting of the yellow overload/reset lamp
indicates that an overload condition has occurred.
The overload circuitry is integral to the control unit
and is factory calibrated and sealed. It allows
normal operation, testing and maintenance. It will
only activate if the spray applicator load conditions
exceed the pre-set limit as a result of component
(barrel, transformer, cable) failure or improper
applicator to target distance. If the overload should
trip, locate and correct the problem. Then reset
the overload by pushing the reset switch in, or
turning the ON/OFF switch OFF and back ON
again.
The overload feature can be turned ON or OFF
by moving jumper JP5 on the main PC board (see
Figure 4 for location of JP5). To turn the overload
circuit OFF position jumper JP5 so that it covers
(shorts) pins 2 and 2. To turn the overload circuit
ON position jumper JP5 so that it covers (shorts)
pins 2 and 3.
> Control units for applicators are shipped
from the factory with the overload circuit
OFF, while those for automatic applica-
tors are shipped with the overload circuit
ON. This is because during normal use,
manually operated applicators may come
in close proximity to the part, causing an
overload which requires the operator to
cease the painting operation while going
to reset the overload. In addition, the
operator will notice when a failed part may
be causing the applicator to operate at
less than optimum performance, thus the
overload circuit is not necessary for this
purpose.
N O T E N O T E N O T E N O T E N O T E
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