Set the Output Voltage
When the unit is in voltage priority mode, the output voltage remains at its programmed setting as
long as the load current remains within its programmed positive or negative limit.
Front Panel Menu Reference
Press the Voltage key.
Enter a value and press Select.
When the unit is in current priority mode, you can specify a voltage limit which limits the output voltage
at the specified value. The output current remains at its programmed setting, provided the load
voltage remains within the voltage limit setting.
Front Panel Menu Reference
Press the Voltage key.
Specify a + Voltage limit. Then press Select.
Set the Low Voltage Limit
This information applies to models RP793xA and RP794xA only.
Sets the low voltage limit when in current priority mode. This prevents the voltage from dropping
below the low voltage limit when discharging a battery. When the low voltage limit is reached, the unit
transitions from current priority mode to voltage priority mode operation, which stops discharging the
battery. The low voltage limit is annunciated by the UV status bit.
Note that the low voltage limit also prevents the output from turning on when the output voltage is
below the programmed low voltage limit. If you need to turn the output on, you must first set the low
voltage limit to zero.
Front Panel Menu Reference
Press the Voltage key.
The Low Voltage Limit field only appears when the unit is set to
operate in Current Priority mode.
Specify the low voltage limit. Then press Select.
Set the Output Current
When the unit is in voltage priority mode, you can specify a positive and negative current limit, which
limits the output current at the specified value.
Keysight RP7900 Series Operating and Service Guide
4 Using the Regenerative Power System
SCPI Command
To set the output voltage to 400 volts:
VOLT 400
SCPI Command
To set the voltage limit:
VOLT:LIM 420
SCPI Command
To set the low voltage limit:
VOLT:LIM:LOW 4
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