Ransburg, Front panel controls and indicators – Ransburg Voltage Master 2 78789_LEPS5001 User Manual
Page 32

FRONT PANEL
CONTROLS AND
INDICATORS
Digital Displays
The KILOVOLTS and MICROAMPS meters are
both 3-½ digit, high intensity LED digital dis-
plays.
The kilovolt meter displays voltage in thousands
of volts (kV) present at the power supply tank
output. The microamp meter displays current in
millionths of amps (µA) leaving the power sup-
ply output.
KV Adjust Knob
When the KV Local/Remote Switch is in the local
position, the KV adjust knob supplies a command
voltage to the Motor Control PC Board. The mo-
tor control board then regulates the high voltage
output accordingly.
KV Local/Remote Switch
When placed in the LOCAL (up position), the KV
output is controlled by the KV ADJUST knob.
When placed in the REMOTE (down position),
the KV output is controlled by the remote analog
input supplied by an external source.
OL Adjust Knob
When the OL Local/Remote Switch is in the local
position, this knob sets the current level at which
the power supply will enter an overload condition.
OL Local/Remote Switch
When placed in the LOCAL (up position), the over-
load setpoint is controlled by the OL ADJUST knob.
When placed in the REMOTE (down position), the
setpoint is controlled by the remote analog input
supplied by an external source.
ACTUAL/SETPOINT Switch
This switch simply determines whether the actual
HV output current or the overload setpoint is dis-
played on the MICROAMPS meter.
KV ON, OFF/RESET Switch
This is a three position, spring return switch for
manually turning high voltage on and off. The OFF
position is also used to reset the power supply in
the event of an overload alarm condition. The
switch is illuminated red when high voltage is ON.
Power ON/OFF Switch
Supplies incoming AC power to the control panel.
The switch is illuminated green to indicate voltage
is present.
Horn
The alarm horn sounds when an overload con-
dition occurs.
Overload Indicator
This indicator glows red when an overload con-
dition occurs.
High Voltage Ready Indicator
This indicator glows yellow when the system is
in ready mode. Ready mode occurs when AC
power is on, high voltage is not yet enabled and
no faults are present.
Overload Range Select Switch
(Refer to Figure 12)
This is a small slide switch located behind the
control panel door on the printed circuit board. It is
identified as SW4, OVERLOAD ADJUST RANGE.
The purpose of this switch is to give the operator
a greater level of adjustment sensitivity at lower
current levels. The switch setting DOES NOT
effect the remote analog control scaling. Placing
this switch in the LOW (up) position results in
a full scale OL current range of approximately
500 microamps. Placing this switch in the HIGH
(bottom) position results in a full scale OL current
range of approximately 1500 microamps. When
using overload setpoints of 500 microamps or
less, the LOW setting allows more resulution of
the µA Adjust Knob potentiometer, so that desired
settings can be more easily obtained.
Voltage Master 2 - Operation
28
Ransburg
CP-02-02.6