Keysight Technologies N6700C Serie Guide D'utilisation page 170

4 Operating the Power System
As shown by the horizontal portions of the load line, when the unit is sinking power, the output current
may continue to increase in the positive or negative direction as more current is forced into the unit.
Once the current is exceeds 112% of the rated current of the range, the output will shut down, the
output relays will open, and the OC and PROT status bits will be set.
Keysight N679xA Load Module Operation
The operating modes of operation for Keysight N6791xA Load modules are: current
priority, voltage priority, power priority, and resistance priority. When programmed to a mode, a
module remains in that mode until the mode is changed or until a fault condition, such as an
over=power or over-temperature occurs.
Current Priority Mode
In this mode, the load module will sink a current in accordance with the programmed value regardless
of the input voltage.
The heavy solid vertical line illustrates the locus of possible operating points as a function of the load
current. A CC (constant current) status flag indicates that the load current is at the specified setting. A
voltage limit is not programmable in current priority mode. Also, if the DUT imposes a voltage that is
above 110% of the rated input voltage, the overvoltage protection will trip and the output will turn off.
Current may be programmed in one of two overlapping ranges, a Low range and a High range. The low
range provides better programming and measurement resolution at low current settings.
Voltage Priority Mode
In this mode, the load module will attempt to sink enough current to maintain the input voltage at its
programmed value.
Keysight N6700C Series User's Guide 169