Ransburg 77070-33, Руководство по обслуживанию, Страница: 17 / 40

CP-08-01
9040 Classic HV Power Supply - Operation
1 4 1 4 1 4 1 4 1 4
THEOR THEOR
THEOR THEOR
THEORY Y
Y Y
Y OF OPERA OF OPERA
OF OPERA OF OPERA
OF OPERATION TION
TION TION
TION
Line voltage (90-264 VAC) is applied to input
terminals 8PL-1 and 8PL-2 of power supply 1SUP
through the user supplied exhaust fan and
conveyor interlocks, fuse 1FU and ON/OFF switch
1SW.
The output of power supply 1SUP, through PC
board fuse F2 provides the DC voltage which
powers the PC board regulators and the AC
Power ON LED. The DC input to the oscillator
circuit is obtained from a board regulator through
high voltage adjust knob 1POT. The oscillator
circuit outputs a low voltage, high frequency AC
signal to the high voltage multiplier circuit. The
high voltage multiplier circuit rectifies the AC voltage
to DC and steps it up to provide rated kV to the
spray applicator via the high voltage cable. The
high voltage adjust knob controls the level of
output voltage from the oscillator to the high voltage
multiplier. In this manner, complete adjustability
from 0 to maximum kV of the spray applicator is
achieved.
The DC input to the oscillator is interlocked with
1TB terminals 6 and 7, such that the oscillator
will not function unless terminals 6 and 7 are
connected together. In this manner, high voltage
to the spray applicator is controlled as follows:
1. When pressure signals are supplied to the
pressure switches, the switch contacts close
connecting 1TB-6 and 7 together, thereby providing
voltage to the applicator.
2. Contact closure of a programmable controller
output, robot output, or some other user supplied
device connected to terminals 1TB-6 and 7 will
activate high voltage at the spray applicator.
3. For testing and troubleshooting, board jumper
JP4 connects 1TB-6 and 7 together, thereby
providing high voltage output (see "PC Board Test
Jumper" in the "Maintenance" section of this
manual).
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 power supply.
4. The voltage to the automatic applicator is
activated by supplying adequate pressure signals
to the power supply pressure switches.
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 spray applicator. The
microamp meter indicates the current in millionths
of amps (
μ A) leaving the applicator.
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 spray applicator electrode voltage
between 0 and rated kV.
>
Check that the power supply is properly
grounded!
W A R N I N G W A R N I N G
W A R N I N G W A R N I N G
W A R N I N G
!!!!!
OPERA OPERA
OPERA OPERA
OPERATING TING
TING TING
TING
PROCEDURES PROCEDURES PROCEDURES PROCEDURES PROCEDURES
1. Ensure that the AC power, pneumatics and
high voltage cables are connected as described in
the "Installation" section of this manual.
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