Ransburg 9040 Classic HV Power Supply 76447 - Manual (Page 21)

CP-97-02.5
9040 Classic for REA & M90 Systems - Operation
1 8 1 8 1 8 1 8 1 8
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 air flows through the flow switch, the
switch contacts close connecting 1TB-6 and 7
together, thereby providing voltage to the REA-III,
REA-IV, and M90 Classic applicators.
2. When pressure signals are supplied to the
pressure switches, the switch contacts close
connecting 1TB-6 and 7 together, thereby providing
voltage to the REA-III automatic applicator.
3. 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.
4. 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).
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.
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 REA-III, REA-IV, and M90
Classic applicators is activated by supplying
adequate air to the flow switch when the applicator
is triggered. The voltage to the REA III 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 (μA) leaving the electrode.
> Check that the power supply is 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
!!!!!
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