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2.4
Constant Current Mode and Current Setting
In the Constant Current mode, the power supply regulates the output current at the selected value,
while the voltage varies with the load requirement.
While the power supply is operating in Constant Current mode, the CC indicator in the display
illuminates.
1.
Adjust the output current, when the power supply output is enabled (Output On) or disabled
(Output Off). There are three options to set output current:
(a) When the output is enabled, rotate the Current encoder knob to program the output
current. This method affects output current immediately.
(b) When the output is enabled, press the PREV button and then rotate the Current encoder to
a required value. Press the Current encoder to select the required value. The display will
blink once to acknowledge the setting. This method affects output current 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 Current encoder
to a required value. Press the Current 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 current programming resolution to Coarse or Fine adjustment.
(a) Press the FINE button to select between the lower (about 1% of rated current) and higher
(setting least significant digit seen on the current display) resolution.
(b) The FINE LED illuminates when the resolution is set to Fine.
2.5
Automatic Crossover
When the power supply operates in the Constant Voltage mode, while the load current is increased
to greater than the current limit setting, the power supply will automatically switch to the Constant
Current mode. If the load is decreased to less than the current limit setting, the power supply will
automatically switch back to the Constant Voltage mode.
2.6
Output On/Off Control
The Output On/Off enables or disables the power supply output.
The Output On/Off can be activated from the front panel using the OUTPUT button or from the
communication interface. The OUTPUT button can be pressed at any time (except in the Front
Panel Lock mode, Remote control mode by communication, LLO mode or when a Fault condition
exists).
When the output is disabled, the output voltage and current fall to zero, the display shows OUT OFF.
Press the OUTPUT button to recover from Faults such as: OVP, UVP, and FOLD faults, after the
Fault conditions have been removed.
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