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4-4 INITIAL OPERATION
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Copyright © 2010 by Kaufman & Robinson, Inc., 1306 Blue Spruce Drive, Unit A, Fort Collins, CO 80524
Tel: 970-495-0187, Fax: 970-484-9350, Internet: www.ionsources.com
The Emission voltage and current setpoints can be adjusted by turning
the Setpoint Adjust knob on the front of the Emission Power Supply. The
setpoint being adjusted by the knob is indicated by the green LED’s on
the front panel labeled Amps and Volts. These LED’s are located above
and below the white Select button on the front panel of the Emission
Power Supply. Pressing and releasing the Select button will switch the
parameter being adjusted from Amps (emission current) to Volts (emission
voltage) or from Volts to Amps. This can only be adjusted independently,
but is also adjusted automatically when adjusting the Discharge current.
This maintains the same Emission to Discharge current ratio. For the
initial operation, leave the Emission at the program setpoint.
4.3.1.5 Discharge Parameters
The setpoints for the discharge voltage in volts and the discharge current
in amps are displayed on the front panel of the Discharge Power Supply
in the displays labeled Discharge Volts and Discharge Amps. Notice
that the yellow setpoint LED below the display is on to indicate that the
setpoint is being viewed. Once the Auto Controller is enabled, the run
values will be displayed and the green run LED will be on.
The discharge voltage and current setpoints can be adjusted using the
Setpoint Adjust knob on the front of the discharge controller. These
adjustments can be made when the Auto Controller is in Standby or when
it is Enabled. The setpoint being adjusted by the knob is indicated by the
green LED’s on the front panel labeled Amps and Volts. These LED’s are
located above and below the white Select button on the front panel of the
Discharge Power Supply. Pressing and releasing the Select button will
switch the parameter being adjusted from Amps (discharge current) to
Volts (discharge voltage) or from Volts to Amps. For the initial operation,
leave the discharge voltage and current at the program setpoints.
4.3.1.6 Enable
Press and release the white Enable/Standby button on the front panel
of the Auto Controller. Notice that the yellow Standby LED under the
button turns off and the green Enable LED above the button turns on.
The same LED transition from Standby to enable also happens on the
Keeper, Emission and Discharge Power Supplies as the Auto Controller
sequences them on. The gas
fl
ow will automatically be adjusted until the
program 1 parameters are reached.
Note that the operating range of the ion source may be limited by the