SECTION 4 OPERATION
30
4.1.2 QUICKLY PUTTING THE UNIT TO USE
The following steps provide a quick method (using MANUAL MODE) for setting Voltage and Frequency
and applying power to a load. To set other parameters, such as phase angle, waveform, current limit,
power form and output coupling mode (transformer or direct), use the PROGRAM EDIT MODE. It also
allows you to setup transient events. Programming and executing a stored program is described in
sections 4.5 and 4.4 respectively. For a list of individual functions, see the HOW TO reference in the
beginning of this manual.
QUICK MANUAL MODE OPERATION
NOTE
: OBSERVE ALL SAFETY WARNINGS AND CAUTIONS LISTED AT THE START OF THIS
MANUAL !!!
1. DO NOT CONNECT A LOAD to the power source until you are satisfied that the power source
output is appropriate for the load.
2. Be certain that the OUTPUT POWER SWITCH is OFF. Then apply input power to the UPC or
power source using its INPUT POWER SWITCH. Allow a few seconds for the UPC to initialize.
It will beep twice when it is ready.
3. The V/I METER will appear. This is the default display. It shows metered Volts and Amps (AC
RMS). It also shows the Voltage and Frequency entries in the upper right corner of the display
as the user is entering or changing them.
4. TO CHANGE VOLTAGE
- Light the Va, Vb and/or Vc LEDs by pressing the keys below them.
Now perform one of the following steps:
A. Enter a numeric value on the keypad and press EXECUTE. - or -
B. Press the UP or DOWN arrows (︿ or ﹀) to 'slew' the voltage.
The phases that are indicated by the V LEDs will be changed to the voltage selected.
5. TO CHANGE FREQUENCY
- Light the F LED by pressing the F key. Now perform one of the
following steps:
A. Enter a numeric value on the keypad and press EXECUTE - or-
B. Press the UP or DOWN arrows to 'slew' the frequency.
NOTE
: You cannot change Voltage and Frequency simultaneously using MANUAL MODE.
6. TO CLOSE THE OUTPUT RELAY
- First switch the OUTPUT POWER SWITCH on the power
source front panel to ON/AUTO. Then press the OUTPUT ENABLE key on the UPC keyboard.
Verify the power source output (rear panel output terminals) is generating the desired voltage,
frequency and phase angle using an oscilloscope and/or meters.
7. TO APPLY POWER TO THE LOAD,
first TURN OFF the INPUT POWER switch, TURN OFF
the OUTPUT POWER switch. Connect the load to the rear panel output terminals. Switch ON
the INPUT POWER switch, switch ON the OUTPUT POWER switch. Then press the OUTPUT
ENABLE key on the UPC controller. Power is now being applied to the load.
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