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2.3
Constant Voltage Mode and Voltage Setting
In Constant Voltage mode, the power supply regulates the output voltage at the selected value,
while the load current varies as required by the load.
While the power supply operates in Constant Voltage mode, the CV indicator on the display
illuminates.
1.
Adjust the output voltage, when the power supply output is enabled (Output On) or disabled
(Output Off). There are three options to set output voltage:
(a) When the output is enabled, rotate the Voltage encoder knob to program the output
voltage. This method affects output voltage immediately.
(b) When the output is enabled, press the PREV button and then rotate the Voltage encoder to
a required value. Press the Voltage encoder to select the required value. The display will
blink once to acknowledge the setting. This method affects output voltage only after
acknowledgement by encoder press. Exit the PREV menu by pressing the Back button or
the PREV button.
(c) When the output is disabled, press the PREV button and then rotate the Voltage encoder
to a required value. Press the Voltage encoder to select the required value. The display will
blink once to acknowledge the setting. Exit the PREV menu by pressing the Back button or
the PREV button.
2.
Set voltage programming resolution to the Coarse or Fine adjustment.
(a) Press the FINE button to select between the lower (about 1% of rated voltage) and higher
(setting least significant digit seen on the voltage display) resolution.
(b) The FINE LED illuminates when the resolution is set to Fine.
If after completing the adjustment, the display shows a different value than the setting, the power
supply may be at current limit. Check the load condition and the power supply current limit setting.
The maximum and minimum setting values of the output voltage are limited by the Over Voltage
protection and Under Voltage limit settings. Refer to section 2.9.2 and section 2.9.3 for more
details.
NOTE
NOTE
26
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